java实现微信退款功能

微信退款之前需要在常量中配置退款地址，退款的地址必须是可以直接访问的。（之前的申请商户平台及在开放平台申请账号不在描述）在调起之前需要下载商户平台上的证书将其放在项目src下。 

微信退款回调url ：微信官方建议在提交退款申请后进行退款回调url配置，便于通知退款的结果。配置在微信商户平台-》交易中心-》退款配置栏进行退款结果回调通知配置。配置的url必须为可以直接访问的类似付款成功回调url。

配置成功后在回调的url中处理退款后的结果。微信给返回的参数如下：

对于加密信息req_info的解密步骤如下。

解密过程中需要先到oracle官网下载对应java版本的sercity包，然后将下载后的包中两个jar复制到jdk/jre/lib/security/包下并覆盖原jar.另外需要在项目中引入一个bcprov-jdk15on-158.jar 

退款部分代码：

// 构造向微信发送参数的实体类
  private unifiedorder unifiedorder = new unifiedorder();
  // 微信的参数
  private weixinconfigutils config = new weixinconfigutils();
  public static final string algorithm = "aes/ecb/pkcs7padding"; 
  private refundorder refundorder = new refundorder();
  @resource
  private aesdecodeutil aesdecodeutil;
@action("weixinrefund")
  public string weixinrefund() {
    try {
      string out_trade_no = getrequest().getparameter("out_trade_no");
      string refund_fee = getrequest().getparameter("refund_fee");
      alipay = alipayservice.searchalipaybyouttradeno(out_trade_no);
      if (alipay != null) {
        // 参数组
        string appid = alipay.getapp_id();
        string mch_id = config.mch_id;
        string nonce_str = randcharsutils.getrandomstring(16);
        string out_refund_no = uuidutils.getuuid();
        integer total_fee = alipay.gettotalfee();
        // 构造签名
        parameters.put("appid", appid);
        parameters.put("mch_id", mch_id);
        parameters.put("nonce_str", nonce_str);
        parameters.put("out_trade_no", out_trade_no);
        parameters.put("out_refund_no", out_refund_no);
        parameters.put("total_fee", total_fee);
        parameters.put("refund_fee", refund_fee);
        parameters.put("op_user_id", mch_id);
        string sign = wxsignutils.createsign("utf-8", parameters);
        // 向微信发送xml消息
        // unifiedorder unifiedorder = new unifiedorder();
        unifiedorder.setappid(appid);
        unifiedorder.setmch_id(mch_id);
        unifiedorder.setsign(sign);
        unifiedorder.setnonce_str(nonce_str);
        unifiedorder.setout_trade_no(out_trade_no);
        unifiedorder.setout_refund_no(out_refund_no);
        unifiedorder.settotal_fee(total_fee);
        unifiedorder.setrefund_fee(integer.valueof(refund_fee));
        unifiedorder.setop_user_id(mch_id);
        string xmlinfo = httpxmlutils.refundxml(unifiedorder);
        unifiedorder = null;
        try {
          closeablehttpresponse response = httputil.post(
              weixinconstant.refund_url, xmlinfo, true);
          // 输出退款后的信息
          string refundxml = entityutils.tostring(response.getentity(), "utf-8");
          map<string, string> refundordermap = httpxmlutils.parserefundxml(refundxml);
          if (refundordermap.size()>0) {
            if (refundordermap.get("result_code").equals("success") && refundordermap.get("return_code").equals("success")) {
              refundorder.setappid(refundordermap.get("appid"));
              refundorder.setmch_id(refundordermap.get("mch_id"));
              refundorder.settransaction_id(refundordermap.get("transaction_id"));
              refundorder.setout_trade_no(refundordermap.get("out_trade_no"));
              refundorder.setout_refund_no(refundordermap.get("out_refund_no"));
              refundorder.setrefund_id(refundordermap.get("refund_id"));
              refundorder.setrefund_fee(integer.valueof(refundordermap.get("refund_fee")));
              refundorder.settatol_fee(integer.valueof(refundordermap.get("total_fee")));
              refundorder.setrefund_status(weixinrefundstatusconstant.apply_success);
refundorderservice.saveorder(refundorder);
      msg.put("statecode", msgcode.success);
              msg.put("message ", "退款申请成功");
    refundorderservice.saveorder(refundorder);
            }else {
              msg.put("statecode", msgcode.error);
              msg.put("message ", "退款申请失败");
            }
          }else {
            msg.put("statecode", msgcode.error);
            msg.put("message ", "退款申请失败");
          }
          try {
            // 关闭流
            entityutils.consume(response.getentity());
          } finally {
            response.close();
          }
        } catch (exception e) {
          msg.put("statecode", msgcode.sys_error);
          msg.put("message ", "服务器异常");
        }

      } else {
        msg.put("statecode", msgcode.error);
        msg.put("message ", "退款申请失败");
      }
      struts2utils.renderjson(jsonobject.tojsonstring(msg,
          serializerfeature.disablecircularreferencedetect));
      return none;
    } catch (exception e) {
      log.error(e.getmessage());
      e.printstacktrace();
      return "500";
    }
  }
   /**
   * 微信退款回调url
   * */

  @action("refundnotifyurl")
  public string refundnotifyurl() throws ioexception {
    try {
      map<string, string> resultmap = jdomparsexmlutils.getweixinresult(
          struts2utils.getrequest(), struts2utils.getresponse());
      if (resultmap.get("return_code").equals("success")) {
        string reqinfo = resultmap.get("req_info");
        string result = aesdecodeutil.decode(reqinfo);
        map<string, string> resultmaps = httpxmlutils.parserefundnotifyxml(result);
        refundorder = refundorderservice.getorderbyoutrefundno(resultmaps.get("out_refund_no"));
        if (resultmaps.get("refund_status").equals("success")){
          refundorder.setrefund_status(weixinrefundstatusconstant.refund_success);
        }else if (resultmaps.get("refund_status").equals("change")) {
          refundorder.setrefund_status(weixinrefundstatusconstant.refund_fail);
      }else if (resultmaps.get("refund_status").equals("refundclose")) {
          refundorder.setrefund_status(weixinrefundstatusconstant.refund_closed);
      }
        refundorder.setrefund_rew_account(resultmaps.get("refund_recv_account"));
        system.out.println(resultmaps.get("refund_recv_account"));
        refundorderservice.updateorder(refundorder);
        refundorder = null;
        unifiedorder.setreturn_code("success");
      }
      unifiedorder.setreturn_code("success");
      string refundxml = httpxmlutils.refundxml(unifiedorder);
      struts2utils.getresponse().getwriter().write(refundxml);
      struts2utils.getresponse().getwriter().flush();
      } catch (exception e) {
      log.error(e.getmessage());
      e.printstacktrace();
      return "500";
    }
    return null;
}

package com.wellness.platfront.common.weixinutil;

import java.text.simpledateformat;
import java.util.calendar;
import java.util.date;
import java.util.random;
生成随机串
/**
 * nonce_str随即字符串
* @author 
 * @date 2017/08/10
 */
public class randcharsutils {
  private static simpledateformat df = new simpledateformat("yyyymmddhhmmss");

  public static string getrandomstring(int length) { //length表示生成字符串的长度
    string base = "abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz";  
    random random = new random();  
    stringbuffer sb = new stringbuffer();
    int number = 0;
    for (int i = 0; i < length; i++) {  
      number = random.nextint(base.length());  
      sb.append(base.charat(number));  
    }  
    return sb.tostring();  
  } 

  /*
   * 订单开始交易的时间
   */
  public static string timestart(){
    return df.format(new date());
  }

  /*
   * 订单开始交易的时间
   */
  public static string timeexpire(){
    calendar now=calendar.getinstance();
    now.add(calendar.minute,30);
    return df.format(now.gettimeinmillis());
  }

}

生成签名的类

package com.wellness.platfront.common.weixinutil;

import java.util.iterator;
import java.util.map;
import java.util.set;
import java.util.sortedmap;

/**
 * 微信支付签名
 * @author 
 * @date 2017/08/10
 */
public class wxsignutils {
  /**
   * 微信支付签名算法sign
   * @param characterencoding
   * @param parameters
   * @return
   */
  @suppresswarnings("rawtypes")
  public static string createsign(string characterencoding,sortedmap<object,object> parameters){
    stringbuffer sb = new stringbuffer();
    set es = parameters.entryset();//所有参与传参的参数按照accsii排序（升序）
    iterator it = es.iterator();
    while(it.hasnext()) {
      map.entry entry = (map.entry)it.next();
      string k = (string)entry.getkey();
      object v = entry.getvalue();
      if(null != v && !"".equals(v) 
          && !"sign".equals(k) && !"key".equals(k)) {
        sb.append(k + "=" + v + "&");
      }
    }
    sb.append("key=" + weixinconstant.key);
    string sign = md5util.md5encode(sb.tostring(), characterencoding).touppercase();
    return sign;
  }
}

向微信发送消息的类

package com.wellness.platfront.common.weixinutil;

import java.io.bufferedreader;
import java.io.ioexception;
import java.io.inputstream;
import java.io.inputstreamreader;
import java.io.outputstream;
import java.io.outputstreamwriter;
import java.io.stringreader;
import java.net.httpurlconnection;
import java.net.malformedurlexception;
import java.net.url;
import java.util.hashmap;
import java.util.list;
import java.util.map;

import javax.annotation.resource;
import javax.net.ssl.httpsurlconnection;

import org.jdom.jdomexception;
import org.jdom.input.saxbuilder;
import org.xml.sax.inputsource;

import com.thoughtworks.xstream.xstream;
import com.thoughtworks.xstream.io.xml.domdriver;
import com.thoughtworks.xstream.io.xml.xmlfriendlynamecoder;
import com.wellness.platfront.business.wechat.service.refundorderservice;
import com.wellness.platfront.entity.weixin.transfers;
import com.wellness.platfront.entity.weixin.unifiedorder;
/**
 * post提交xml格式的参数
 * @author
 * @date 2017/08/10
 */
public class httpxmlutils {
  @resource
  private refundorderservice refundorderservice;
  public static xstream xstream = new xstream(new domdriver("utf-8",
      new xmlfriendlynamecoder("-_", "_")));
  /**
   * 开始post提交参数到接口
   * 并接受返回
   * @param url
   * @param xml
   * @param method
   * @param contenttype
   * @return
   */
  public static string xmlhttpproxy(string url,string xml,string method,string contenttype){
    inputstream is = null;
    outputstreamwriter os = null;
    try {
      url _url = new url(url);
      httpurlconnection conn = (httpurlconnection) _url.openconnection();
      conn.setdoinput(true);  
      conn.setdooutput(true);  
      conn.setrequestproperty("content-type", "text/xml");
      conn.setrequestproperty("pragma:", "no-cache"); 
      conn.setrequestproperty("cache-control", "no-cache"); 
      conn.setrequestmethod("post");
      os = new outputstreamwriter(conn.getoutputstream());
      os.write(new string(xml.getbytes(contenttype)));
      os.flush();
      //返回值
      is = conn.getinputstream();
      return getcontent(is, "utf-8");
    } catch (malformedurlexception e) {
      e.printstacktrace();
    } catch (ioexception e) {
      e.printstacktrace();
    } finally{
      try {
        if(os!=null){os.close();}
        if(is!=null){is.close();}
      } catch (ioexception e) {
        e.printstacktrace();
      }
    }
    return null;
  }
  /**
   * 解析返回的值
   * @param is
   * @param charset
   * @return
   */
  public static string getcontent(inputstream is, string charset) {
    string pagestring = null;
    inputstreamreader isr = null;
    bufferedreader br = null;
    stringbuffer sb = null;
    try {
      isr = new inputstreamreader(is, charset);
      br = new bufferedreader(isr);
      sb = new stringbuffer();
      string line = null;
      while ((line = br.readline()) != null) {
        sb.append(line + "\n");
      }
      pagestring = sb.tostring();
    } catch (exception e) {
      e.printstacktrace();
    } finally {
      try {
        if (is != null){
          is.close();
        }
        if(isr!=null){
          isr.close();
        }
        if(br!=null){
          br.close();
        }
      } catch (ioexception e) {
        e.printstacktrace();
      }
      sb = null;
    }
    return pagestring;
  }
  /**
   * 解析申请退款之后微信返回的值并进行存库操作
   * @throws ioexception 
   * @throws jdomexception 
   */
  public static map<string, string> parserefundxml(string refundxml) throws jdomexception, ioexception{
    parsexmlutils.jdomparsexml(refundxml);
    stringreader read = new stringreader(refundxml);
    // 创建新的输入源sax 解析器将使用 inputsource 对象来确定如何读取 xml 输入
    inputsource source = new inputsource(read);
    // 创建一个新的saxbuilder
    saxbuilder sb = new saxbuilder();
    // 通过输入源构造一个document
    org.jdom.document doc;
    doc = (org.jdom.document) sb.build(source);
    org.jdom.element root = doc.getrootelement();// 指向根节点
    list<org.jdom.element> list = root.getchildren();
    map<string, string> refundordermap = new hashmap<string, string>();
    if(list!=null&&list.size()>0){
      for (org.jdom.element element : list) {
        refundordermap.put(element.getname(), element.gettext());
      }
      return refundordermap;
      }
    return null;
  }
  /**
   * 解析申请退款之后微信退款回调返回的字符串中内容
   * @throws ioexception 
   * @throws jdomexception 
   */
  public static map<string, string> parserefundnotifyxml(string refundxml) throws jdomexception, ioexception{
    parsexmlutils.jdomparsexml(refundxml);
    stringreader read = new stringreader(refundxml);
    // 创建新的输入源sax 解析器将使用 inputsource 对象来确定如何读取 xml 输入
    inputsource source = new inputsource(read);
    // 创建一个新的saxbuilder
    saxbuilder sb = new saxbuilder();
    // 通过输入源构造一个document
    org.jdom.document doc;
    doc = (org.jdom.document) sb.build(source);
    org.jdom.element root = doc.getrootelement();// 指向根节点
    list<org.jdom.element> list = root.getchildren();
    map<string, string> resultmap = new hashmap<>();
    if(list!=null&&list.size()>0){
      for (org.jdom.element element : list){
        resultmap.put(element.getname(), element.gettext());
      }
    return resultmap;
    }
    return null;
  }
  /**
   * h5支付时 解析返回的值并返回prepareid
   * @throws ioexception 
   * @throws jdomexception 
   */
  public static map<string, string> geturl(unifiedorder unifiedorder) throws jdomexception, ioexception{
    string xmlinfo = httpxmlutils.xmlh5info(unifiedorder);
    string wxurl = weixinconstant.url;
    string method = "post";
    string weixinpost = httpxmlutils.httpsrequest(wxurl, method, xmlinfo).tostring();
    parsexmlutils.jdomparsexml(weixinpost);
    stringreader read = new stringreader(weixinpost);
    // 创建新的输入源sax 解析器将使用 inputsource 对象来确定如何读取 xml 输入
    inputsource source = new inputsource(read);
    // 创建一个新的saxbuilder
    saxbuilder sb = new saxbuilder();
    // 通过输入源构造一个document
    org.jdom.document doc;
    doc = (org.jdom.document) sb.build(source);
    org.jdom.element root = doc.getrootelement();// 指向根节点
    list<org.jdom.element> list = root.getchildren();
    string prepayid =null;
    map<string, string> msg = new hashmap<string, string>();
    if(list!=null&&list.size()>0){
      for (org.jdom.element element : list) {
      msg.put(element.getname(), element.gettext());
      }
      }
    return msg;
  }
  /**
   * 解析返回的值并返回prepareid
   * @throws ioexception 
   * @throws jdomexception 
   */
  public static string getprepareid(unifiedorder unifiedorder) throws jdomexception, ioexception{
    string xmlinfo = httpxmlutils.xmlinfo(unifiedorder);
    string wxurl = weixinconstant.url;
    string method = "post";
    string weixinpost = httpxmlutils.httpsrequest(wxurl, method, xmlinfo).tostring();
    parsexmlutils.jdomparsexml(weixinpost);
    stringreader read = new stringreader(weixinpost);
    // 创建新的输入源sax 解析器将使用 inputsource 对象来确定如何读取 xml 输入
    inputsource source = new inputsource(read);
    // 创建一个新的saxbuilder
    saxbuilder sb = new saxbuilder();
    // 通过输入源构造一个document
    org.jdom.document doc;
    doc = (org.jdom.document) sb.build(source);
    org.jdom.element root = doc.getrootelement();// 指向根节点
    list<org.jdom.element> list = root.getchildren();
    string prepayid =null;
    if(list!=null&&list.size()>0){
      for (org.jdom.element element : list) {
        if ( "prepay_id".equals(element.getname())) {
          prepayid= element.gettext();
          break;
        }
      }
      }
    return prepayid;
  }
  /**
   * 向微信发送企业付款请求并解析返回结果
   * @throws ioexception 
   * @throws jdomexception 
   */
  public static map<string, string> gettransfersmap(transfers transfers) throws jdomexception, ioexception{
    string xmlinfo = httpxmlutils.xmltransfer(transfers);
    string wxurl = weixinconstant.withdraw_url;
    string method = "post";
    string weixinpost = httpxmlutils.httpsrequest(wxurl, method, xmlinfo).tostring();
    parsexmlutils.jdomparsexml(weixinpost);
    stringreader read = new stringreader(weixinpost);
    // 创建新的输入源sax 解析器将使用 inputsource 对象来确定如何读取 xml 输入
    inputsource source = new inputsource(read);
    // 创建一个新的saxbuilder
    saxbuilder sb = new saxbuilder();
    // 通过输入源构造一个document
    org.jdom.document doc;
    doc = (org.jdom.document) sb.build(source);
    org.jdom.element root = doc.getrootelement();// 指向根节点
    list<org.jdom.element> list = root.getchildren();
    map<string, string> transfermap=new hashmap<>();
    if(list!=null&&list.size()>0){
      for (org.jdom.element element : list) {
        transfermap.put(element.getname(), element.gettext());
      }
      }
    return transfermap;
  }
  /**
   * 构造退款xml参数
   * @param xml
   * @return
   */
  public static string refundxml(unifiedorder unifiedorder){
      xstream.autodetectannotations(true);
      xstream.alias("xml", unifiedorder.class);
      return xstream.toxml(unifiedorder);
  }
  /**
   * 构造企业付款xml参数
   * @param xml
   * @return
   */
  public static string transferxml(transfers transfers){
      xstream.autodetectannotations(true);
      xstream.alias("xml", transfers.class);
      return xstream.toxml(transfers);
  }
  /**
   * 构造xml参数
   * @param xml
   * @return
   */
  public static string xmlinfo(unifiedorder unifiedorder){

    if(unifiedorder!=null){
      stringbuffer bf = new stringbuffer();
      bf.append("<xml>");

      bf.append("<appid><![cdata[");
      bf.append(unifiedorder.getappid());
      bf.append("]]></appid>");

      bf.append("<mch_id><![cdata[");
      bf.append(unifiedorder.getmch_id());
      bf.append("]]></mch_id>");

      bf.append("<nonce_str><![cdata[");
      bf.append(unifiedorder.getnonce_str());
      bf.append("]]></nonce_str>");

      bf.append("<sign><![cdata[");
      bf.append(unifiedorder.getsign());
      bf.append("]]></sign>");

      bf.append("<body><![cdata[");
      bf.append(unifiedorder.getbody());
      bf.append("]]></body>");

      bf.append("<detail><![cdata[");
      bf.append(unifiedorder.getdetail());
      bf.append("]]></detail>");

      bf.append("<attach><![cdata[");
      bf.append(unifiedorder.getattach());
      bf.append("]]></attach>");

      bf.append("<out_trade_no><![cdata[");
      bf.append(unifiedorder.getout_trade_no());
      bf.append("]]></out_trade_no>");

      bf.append("<total_fee><![cdata[");
      bf.append(unifiedorder.gettotal_fee());
      bf.append("]]></total_fee>");

      bf.append("<spbill_create_ip><![cdata[");
      bf.append(unifiedorder.getspbill_create_ip());
      bf.append("]]></spbill_create_ip>");

      bf.append("<time_start><![cdata[");
      bf.append(unifiedorder.gettime_start());
      bf.append("]]></time_start>");

      bf.append("<time_expire><![cdata[");
      bf.append(unifiedorder.gettime_expire());
      bf.append("]]></time_expire>");

      bf.append("<notify_url><![cdata[");
      bf.append(unifiedorder.getnotify_url());
      bf.append("]]></notify_url>");

      bf.append("<trade_type><![cdata[");
      bf.append(unifiedorder.gettrade_type());
      bf.append("]]></trade_type>");

      bf.append("</xml>");
      return bf.tostring();
    }
    return "";
  }
  /**
   * 构造xml参数
   * @param xml
   * @return
   */
  public static string xmlh5info(unifiedorder unifiedorder){
    if(unifiedorder!=null){
      stringbuffer bf = new stringbuffer();
      bf.append("<xml>");

      bf.append("<appid><![cdata[");
      bf.append(unifiedorder.getappid());
      bf.append("]]></appid>");

      bf.append("<mch_id><![cdata[");
      bf.append(unifiedorder.getmch_id());
      bf.append("]]></mch_id>");

      bf.append("<nonce_str><![cdata[");
      bf.append(unifiedorder.getnonce_str());
      bf.append("]]></nonce_str>");

      bf.append("<sign><![cdata[");
      bf.append(unifiedorder.getsign());
      bf.append("]]></sign>");

      bf.append("<body><![cdata[");
      bf.append(unifiedorder.getbody());
      bf.append("]]></body>");


      bf.append("<attach><![cdata[");
      bf.append(unifiedorder.getattach());
      bf.append("]]></attach>");

      bf.append("<out_trade_no><![cdata[");
      bf.append(unifiedorder.getout_trade_no());
      bf.append("]]></out_trade_no>");

      bf.append("<total_fee><![cdata[");
      bf.append(unifiedorder.gettotal_fee());
      bf.append("]]></total_fee>");

      bf.append("<spbill_create_ip><![cdata[");
      bf.append(unifiedorder.getspbill_create_ip());
      bf.append("]]></spbill_create_ip>");

      bf.append("<notify_url><![cdata[");
      bf.append(unifiedorder.getnotify_url());
      bf.append("]]></notify_url>");

      bf.append("<trade_type><![cdata[");
      bf.append(unifiedorder.gettrade_type());
      bf.append("]]></trade_type>");

      bf.append("<scene_info><![cdata[");
      bf.append(unifiedorder.getscene_info());
      bf.append("]]></scene_info>");

      bf.append("</xml>");
      return bf.tostring();
    }
    return "";
  }
  /**
   * 构造退款xml参数
   * @param xml
   * @return
   */
  public static string xmltransfer(transfers transfers){

    if(transfers!=null){
      stringbuffer bf = new stringbuffer();
      bf.append("<xml>");

      bf.append("<mch_appid><![cdata[");
      bf.append(transfers.getmch_appid());
      bf.append("]]></mch_appid>");

      bf.append("<mchid><![cdata[");
      bf.append(transfers.getmchid());
      bf.append("]]></mchid>");

      bf.append("<nonce_str><![cdata[");
      bf.append(transfers.getnonce_str());
      bf.append("]]></nonce_str>");

      bf.append("<sign><![cdata[");
      bf.append(transfers.getsign());
      bf.append("]]></sign>");

      bf.append("<partner_trade_no><![cdata[");
      bf.append(transfers.getpartner_trade_no());
      bf.append("]]></partner_trade_no>");


      bf.append("<openid><![cdata[");
      bf.append(transfers.getopenid());
      bf.append("]]></openid>");

      bf.append("<check_name><![cdata[");
      bf.append(transfers.getcheck_name());
      bf.append("]]></check_name>");

      bf.append("<amount><![cdata[");
      bf.append(transfers.getamount());
      bf.append("]]></amount>");

      bf.append("<desc><![cdata[");
      bf.append(transfers.getdesc());
      bf.append("]]></desc>");

      bf.append("<spbill_create_ip><![cdata[");
      bf.append(transfers.getspbill_create_ip());
      bf.append("]]></spbill_create_ip>");

      bf.append("</xml>");
      return bf.tostring();
    }
    return "";
  }
  /**
   * post请求并得到返回结果
   * @param requesturl
   * @param requestmethod
   * @param output
   * @return
   */
  public static string httpsrequest(string requesturl, string requestmethod, string output) {
    try{
      url url = new url(requesturl);
      httpsurlconnection connection = (httpsurlconnection) url.openconnection();
      connection.setdooutput(true);
      connection.setdoinput(true);
      connection.setusecaches(false);
      connection.setrequestmethod(requestmethod);
      if (null != output) {
        outputstream outputstream = connection.getoutputstream();
        outputstream.write(output.getbytes("utf-8"));
        outputstream.close();
      }
      // 从输入流读取返回内容
      inputstream inputstream = connection.getinputstream();
      inputstreamreader inputstreamreader = new inputstreamreader(inputstream, "utf-8");
      bufferedreader bufferedreader = new bufferedreader(inputstreamreader);
      string str = null;
      stringbuffer buffer = new stringbuffer();
      while ((str = bufferedreader.readline()) != null) {
        buffer.append(str);
      }
      bufferedreader.close();
      inputstreamreader.close();
      inputstream.close();
      inputstream = null;
      connection.disconnect();
      return buffer.tostring();
    }catch(exception ex){
      ex.printstacktrace();
    }
    return "";
  }
}

加载证书

package com.wellness.platfront.common.weixinutil;

import org.apache.http.client.methods.closeablehttpresponse;
import org.apache.http.client.methods.httppost;
import org.apache.http.entity.stringentity;
import org.apache.http.impl.client.httpclients;

public class httputil {
  /**
   * 发送post请求
   * 
   * @param url
   *      请求地址
   * @param outputentity
   *      发送内容
   * @param isloadcert
   *      是否加载证书
   */
  public static closeablehttpresponse post(string url, string outputentity, boolean isloadcert) throws exception {
    httppost httppost = new httppost(url);
    // 得指明使用utf-8编码，否则到api服务器xml的中文不能被成功识别
    httppost.addheader("content-type", "text/xml");
    httppost.setentity(new stringentity(outputentity, "utf-8"));
    if (isloadcert) {
      // 加载含有证书的http请求
      return httpclients.custom().setsslsocketfactory(certutil.initcert()).build().execute(httppost);
    } else {
      return httpclients.custom().build().execute(httppost);
    }
  }
}

加载证书的类

package com.wellness.platfront.common.weixinutil;

import java.io.file;
import java.io.fileinputstream;
import java.security.keystore;

import javax.net.ssl.sslcontext;

import org.apache.http.conn.ssl.sslconnectionsocketfactory;
import org.apache.http.ssl.sslcontexts;

/**
 * 加载证书的类
 * @author 
 * @since 2017/08/16
 */

@suppresswarnings("deprecation")
public class certutil {
  private static weixinconfigutils config = new weixinconfigutils();
  /**
   * 加载证书
   */
  public static sslconnectionsocketfactory initcert() throws exception {
    fileinputstream instream = null;
    keystore keystore = keystore.getinstance("pkcs12");
    instream = new fileinputstream(new file(weixinconstant.path));
    keystore.load(instream, config.mch_id.tochararray());

    if (null != instream) {
      instream.close();
    }

    sslcontext sslcontext = sslcontexts.custom().loadkeymaterial(keystore,config.mch_id.tochararray()).build();
    sslconnectionsocketfactory sslsf = new sslconnectionsocketfactory(sslcontext, new string[]{"tlsv1"}, null, sslconnectionsocketfactory.browser_compatible_hostname_verifier);

    return sslsf;
  }
}

解密微信退款中返回相关信息的字符串

package com.wellness.platfront.common.weixinutil;

import java.security.security;
import javax.crypto.cipher;
import javax.crypto.secretkey;
import javax.crypto.spec.secretkeyspec;
import org.apache.commons.codec.binary.base64;
import org.bouncycastle.jce.provider.bouncycastleprovider;
import org.springframework.stereotype.service;

import com.wellness.platfront.common.wechat.utils.md5;

/**
 * 解密微信退款中返回相关信息的字符串
 * @author 
 * @since 2017/09/05
 */
@service
public class aesdecodeutil {

   public static final string algorithm = "aes/ecb/pkcs7padding"; 
   public string decode(string reqinfo) throws exception{
    try {
      byte[] decodebase64 = base64.decodebase64(reqinfo);
      string md5key = md5.md5encode(weixinconstant.key);
      security.addprovider(new bouncycastleprovider());
      cipher cipher = cipher.getinstance(algorithm); 
      secretkey keyspec = new secretkeyspec(md5key.getbytes(), "aes"); //生成加密解密需要的key 
      cipher.init(cipher.decrypt_mode, keyspec); 
      byte[] decoded = cipher.dofinal(decodebase64); 
      string result = new string(decoded, "utf-8"); 
      return result;
    } catch (exception e) {
      e.printstacktrace();
    }
    return null;
   }
}

微信解析xml：带有cdata格式的

package com.wellness.platfront.common.weixinutil;


import java.io.bytearrayoutputstream;
import java.io.ioexception;
import java.io.inputstream;
import java.io.printwriter;
import java.io.stringreader;
import java.util.hashmap;
import java.util.list;
import java.util.map;

import javax.servlet.http.httpservletrequest;
import javax.servlet.http.httpservletresponse;

import org.jdom.document;
import org.jdom.element;
import org.jdom.jdomexception;
import org.jdom.input.saxbuilder;
import org.xml.sax.inputsource;

import com.wellness.platfront.entity.weixin.unifiedorderresult;
import com.wellness.platfront.entity.weixin.wxpayresult;


/**
 * 微信解析xml：带有cdata格式的
* @author 
 * @date 2017/08/10
 */
public class jdomparsexmlutils {

  /**
   * 1、统一下单获取微信返回
   * 解析的时候自动去掉cdma
   * @param xml
   */
  @suppresswarnings("unchecked")
  public static unifiedorderresult getunifiedorderresult(string xml){
    unifiedorderresult unifieorderresult = new unifiedorderresult();
    try { 
      stringreader read = new stringreader(xml);
      // 创建新的输入源sax 解析器将使用 inputsource 对象来确定如何读取 xml 输入
      inputsource source = new inputsource(read);
      // 创建一个新的saxbuilder
      saxbuilder sb = new saxbuilder();
      // 通过输入源构造一个document
      document doc;
      doc = (document) sb.build(source);

      element root = doc.getrootelement();// 指向根节点
      list<element> list = root.getchildren();

      if(list!=null&&list.size()>0){
        for (element element : list) {
          system.out.println("key是："+element.getname()+"，值是："+element.gettext());

          if("return_code".equals(element.getname())){
            unifieorderresult.setreturn_code(element.gettext());
          }

          if("return_msg".equals(element.getname())){
            unifieorderresult.setreturn_msg(element.gettext());
          }

          if("appid".equals(element.getname())){
            unifieorderresult.setappid(element.gettext());
          }


          if("mch_id".equals(element.getname())){
            unifieorderresult.setmch_id(element.gettext());
          }

          if("nonce_str".equals(element.getname())){
            unifieorderresult.setnonce_str(element.gettext());
          }

          if("sign".equals(element.getname())){
            unifieorderresult.setsign(element.gettext());
          }

          if("result_code".equals(element.getname())){
            unifieorderresult.setresult_code(element.gettext());
          }

          if("prepay_id".equals(element.getname())){
            unifieorderresult.setprepay_id(element.gettext());
          }

          if("trade_type".equals(element.getname())){
            unifieorderresult.settrade_type(element.gettext());
          }
        }
      }

    } catch (jdomexception e) {
      e.printstacktrace();
    } catch (ioexception e) {
      e.printstacktrace();
    }catch (exception e) {
      e.printstacktrace();
    }

    return unifieorderresult;
  }

  /**
   * 获取微信回调的参数并将xml解析成map
   * 解析的时候自动去掉cdma
   * @param xml
   */
  @suppresswarnings("unchecked")
  public static map<string, string> getweixinresult(httpservletrequest request,httpservletresponse response){
    map<string, string> resultmap = new hashmap<>();
     try {
        printwriter writer = response.getwriter();
          inputstream instream = request.getinputstream();
          bytearrayoutputstream outsteam = new bytearrayoutputstream();
          byte[] buffer = new byte[1024];
          int len = 0;
          while ((len = instream.read(buffer)) != -1) {
            outsteam.write(buffer, 0, len);
          }
          outsteam.close();
          instream.close();
          string result = new string(outsteam.tobytearray(), "utf-8");
          stringreader read = new stringreader(result);
          inputsource source = new inputsource(read);
          // 创建一个新的saxbuilder
          saxbuilder sb = new saxbuilder();
          // 通过输入源构造一个document
          document doc;
          doc = (document) sb.build(source);

          element root = doc.getrootelement();// 指向根节点
          list<element> list = root.getchildren();

          if(list!=null&&list.size()>0){
            for (element element : list) {
              resultmap.put(element.getname(), element.gettext());
            }
          }
        return resultmap;
        } catch (exception e) {
          e.printstacktrace();
        }
     return null;
  }


  /**
   * 2、微信回调后参数解析
   * 解析的时候自动去掉cdma
   * @param xml
   */
  @suppresswarnings("unchecked")
  public static wxpayresult getwxpayresult(string xml){
    wxpayresult wxpayresult = new wxpayresult();
    try { 
      stringreader read = new stringreader(xml);
      // 创建新的输入源sax 解析器将使用 inputsource 对象来确定如何读取 xml 输入
      inputsource source = new inputsource(read);
      // 创建一个新的saxbuilder
      saxbuilder sb = new saxbuilder();
      // 通过输入源构造一个document
      document doc;
      doc = (document) sb.build(source);

      element root = doc.getrootelement();// 指向根节点
      list<element> list = root.getchildren();

      if(list!=null&&list.size()>0){
        for (element element : list) {
          if("return_code".equals(element.getname())){
            wxpayresult.setreturn_code(element.gettext());
          }

          if("return_msg".equals(element.getname())){
            wxpayresult.setreturn_msg(element.gettext());
          }


          if("appid".equals(element.getname())){
            wxpayresult.setappid(element.gettext());
          }

          if("mch_id".equals(element.getname())){
            wxpayresult.setmch_id(element.gettext());
          }

          if("nonce_str".equals(element.getname())){
            wxpayresult.setnonce_str(element.gettext());
          }

          if("sign".equals(element.getname())){
            wxpayresult.setsign(element.gettext());
          }

          if("result_code".equals(element.getname())){
            wxpayresult.setresult_code(element.gettext());
          }

          if("return_msg".equals(element.getname())){
            wxpayresult.setreturn_msg(element.gettext());
          }

          if("return_msg".equals(element.getname())){
            wxpayresult.setreturn_msg(element.gettext());
          }

          if("return_msg".equals(element.getname())){
            wxpayresult.setreturn_msg(element.gettext());
          }

          if("return_msg".equals(element.getname())){
            wxpayresult.setreturn_msg(element.gettext());
          }

          if("return_msg".equals(element.getname())){
            wxpayresult.setreturn_msg(element.gettext());
          }

          if("return_msg".equals(element.getname())){
            wxpayresult.setreturn_msg(element.gettext());
          }

          if("return_msg".equals(element.getname())){
            wxpayresult.setreturn_msg(element.gettext());
          }

          if("return_msg".equals(element.getname())){
            wxpayresult.setreturn_msg(element.gettext());
          }

        }
      }

    } catch (jdomexception e) {
      e.printstacktrace();
    } catch (ioexception e) {
      e.printstacktrace();
    }catch (exception e) {
      e.printstacktrace();
    }

    return wxpayresult;
  }

}

package com.wellness.platfront.common.weixinutil;

/**
 * dom解析
 * @author 
 * @date 2017/08/10
 */
import java.io.ioexception;
import java.io.stringreader;
import java.util.iterator;
import java.util.list;

import org.apache.commons.lang.stringutils;
import org.dom4j.document;
import org.dom4j.documentexception;
import org.dom4j.documenthelper;
import org.dom4j.element;
import org.dom4j.io.saxreader;
import org.jdom.jdomexception;
import org.jdom.input.saxbuilder;
import org.xml.sax.inputsource;

public class parsexmlutils {

  /**
   * 1、dom解析
   */
  @suppresswarnings("rawtypes")
  public static void beginxmlparse(string xml){
    document doc = null;
    try {
      doc = documenthelper.parsetext(xml); // 将字符串转为xml

      element rootelt = doc.getrootelement(); // 获取根节点smsreport

      system.out.println("根节点是："+rootelt.getname());

      iterator iters = rootelt.elementiterator("sendresp"); // 获取根节点下的子节点sms

      while (iters.hasnext()) {
        element recordele1 = (element) iters.next();
        iterator iter = recordele1.elementiterator("sms");

        while (iter.hasnext()) {
          element recordele = (element) iter.next();
          string phone = recordele.elementtexttrim("phone"); // 拿到sms节点下的子节点stat值

          string smsid = recordele.elementtexttrim("smsid"); // 拿到sms节点下的子节点stat值

          system.out.println(phone+":"+smsid);
        }
      }
    } catch (documentexception e) {
      e.printstacktrace();
    } catch (exception e) {
      e.printstacktrace();
    }
  }

  /**
   * 2、dom4j解析xml（支持xpath）
   * 解析的时候自动去掉cdma
   * @param xml
   */
  public static void xpathparsexml(string xml){
    try { 
      stringreader read = new stringreader(xml);
      saxreader saxreader = new saxreader();
      document doc = saxreader.read(read);
      string xpath ="/xml/appid";
      system.out.print(doc.selectsinglenode(xpath).gettext()); 
    } catch (documentexception e) {
      e.printstacktrace();
    } 
  }

  /**
   * 3、jdom解析xml
   * 解析的时候自动去掉cdma
   * @param xml
   */
  @suppresswarnings("unchecked")
  public static void jdomparsexml(string xml){
    try { 
      stringreader read = new stringreader(xml);
      // 创建新的输入源sax 解析器将使用 inputsource 对象来确定如何读取 xml 输入
      inputsource source = new inputsource(read);
      // 创建一个新的saxbuilder
      saxbuilder sb = new saxbuilder();
      // 通过输入源构造一个document
      org.jdom.document doc;
      doc = (org.jdom.document) sb.build(source);

      org.jdom.element root = doc.getrootelement();// 指向根节点
      list<org.jdom.element> list = root.getchildren();

      if(list!=null&&list.size()>0){
        for (org.jdom.element element : list) {
          /*try{
            methodname = element.getname();
            method m = v.getclass().getmethod("set" + methodname, new class[] { string.class });
            if(parseint(methodname)){
              m.invoke(v, new object[] { integer.parseint(element.gettext()) });
            }else{
              m.invoke(v, new object[] { element.gettext() });
            }
          }catch(exception ex){
            ex.printstacktrace();
          }*/

        }
      }

    } catch (jdomexception e) {
      e.printstacktrace();
    } catch (ioexception e) {
      e.printstacktrace();
    }catch (exception e) {
      e.printstacktrace();
    }
  }

  public static boolean parseint(string key){
    if(!stringutils.isempty(key)){
      if(key.equals("total_fee")||key.equals("cash_fee")||key.equals("coupon_fee")||key.equals("coupon_count")||key.equals("coupon_fee_0")){
        return true;
      }
    }

    return false;
  }

}

微信支付相关的常量

package com.wellness.platfront.common.weixinutil;
/**
 * 微信支付相关的常量
 * @author yangfuren
 * @since 2017/08/16
 */
public class weixinconstant {
  /**
   * 微信支付api秘钥
   */
  public static final string key = "eao9gdbk7njqkyevrfb82csputiniwnd";

  /**
   * url
   */
  public static final string url = "https://api.mch.weixin.qq.com/pay/unifiedorder";
  /**
   * 退款url
   */
  public static final string refund_url = "https://api.mch.weixin.qq.com/secapi/pay/refund";
  /**
   * 证书地址
   */
  public static final string path ="";
  /**
   * 付款url
   */
  public static final string withdraw_url="https://api.mch.weixin.qq.com/mmpaymkttransfers/promotion/transfers";
}

微信退款状态常量

package com.wellness.platfront.common.weixinutil;
/**
 * 微信退款状态常量
 * @author 
 * @since 2017/09/04
 */
public class weixinrefundstatusconstant {
  //退款申请成功
  public static final string apply_success="退款申请成功";
  //退款申请失败
  public static final string apply_fail="退款申请失败";
  //退款成功
  public static final string refund_success="退款成功";
  //退款异常
  public static final string refund_fail="退款异常";
  //退款关闭
  public static final string refund_closed="退款关闭";

}

微信退款订单信息

package com.wellness.platfront.entity.weixin;

import java.io.serializable;
import java.util.date;

import javax.persistence.column;
import javax.persistence.entity;
import javax.persistence.generatedvalue;
import javax.persistence.generationtype;
import javax.persistence.id;
import javax.persistence.table;

/**
 * 微信退款订单信息
 * @author 
 *
 */
@entity
@table(name = "weixin_refund_order")
public class refundorder implements serializable{
  private static final long serialversionuid = 1l;
  //退款订单id
  public integer refundorderid;
  //微信公众账号
  public string appid;
  //微信商户号
  public string mch_id;
  //微信订单号
  public string transaction_id;
  //商户订单号
  public string out_trade_no;
  //商户退款单号
  public string out_refund_no;
  //微信退款单号
  public string refund_id;
  //退款金额
  public integer refund_fee;
  //订单总价格
  public integer tatol_fee;
  //退款发起时间
  public date create_time;
  //退款状态  申请退款中 申请退款失败 退款成功 退款异常  退款关闭
  public string refund_status;
  //退款退还账户
  public string refund_rew_account;
  //退款完成时间
  public date end_time;
  //订单退还方式
    public string refundtype;
  @id
  @generatedvalue(strategy = generationtype.auto)
  @column(name = "refund_order_id", nullable = false)
  public integer getrefundorderid() {
    return refundorderid;
  }
  public void setrefundorderid(integer refundorderid) {
    this.refundorderid = refundorderid;
  }
  @column(name = "appid", nullable = false)
  public string getappid() {
    return appid;
  }
  public void setappid(string appid) {
    this.appid = appid;
  }
  @column(name = "mch_id", nullable = false)
  public string getmch_id() {
    return mch_id;
  }
  public void setmch_id(string mch_id) {
    this.mch_id = mch_id;
  }
  @column(name = "transaction_id", nullable = false)
  public string gettransaction_id() {
    return transaction_id;
  }
  public void settransaction_id(string transaction_id) {
    this.transaction_id = transaction_id;
  }
  @column(name = "out_trade_no", nullable = false)
  public string getout_trade_no() {
    return out_trade_no;
  }
  public void setout_trade_no(string out_trade_no) {
    this.out_trade_no = out_trade_no;
  }
  @column(name = "out_refund_no", nullable = false)
  public string getout_refund_no() {
    return out_refund_no;
  }
  public void setout_refund_no(string out_refund_no) {
    this.out_refund_no = out_refund_no;
  }
  @column(name = "refund_id", nullable = false)
  public string getrefund_id() {
    return refund_id;
  }
  public void setrefund_id(string refund_id) {
    this.refund_id = refund_id;
  }
  @column(name = "refund_fee", nullable = false)
  public integer getrefund_fee() {
    return refund_fee;
  }
  public void setrefund_fee(integer refund_fee) {
    this.refund_fee = refund_fee;
  }
  @column(name = "tatol_fee", nullable = false)
  public integer gettatol_fee() {
    return tatol_fee;
  }
  public void settatol_fee(integer tatol_fee) {
    this.tatol_fee = tatol_fee;
  }
  @column(name = "create_time", nullable = false)
  public date getcreate_time() {
    return create_time;
  }
  public void setcreate_time(date create_time) {
    this.create_time = create_time;
  }
  @column(name = "refund_status", nullable = false)
  public string getrefund_status() {
    return refund_status;
  }
  public void setrefund_status(string refund_status) {
    this.refund_status = refund_status;
  }
  @column(name = "refund_rew_account")
  public string getrefund_rew_account() {
    return refund_rew_account;
  }
  public void setrefund_rew_account(string refund_rew_account) {
    this.refund_rew_account = refund_rew_account;
  }
  @column(name = "end_time")
  public date getend_time() {
    return end_time;
  }
  public void setend_time(date end_time) {
    this.end_time = end_time;
  }

  @column(name = "refund_type")
  public string getrefundtype() {
    return refundtype;
  }
  public void setrefundtype(string refundtype) {
    this.refundtype = refundtype;
  }
}

这个实体类中参数和微信官方需要的参数一致

package com.wellness.platfront.entity.weixin;

import java.io.serializable;
import com.wellness.platfront.entity.member.member;

/**
 * 统一下单提交为微信的参数
 * @author 
 * @date 2017年08月11日
 */
public class unifiedorder implements serializable{
  private static final long serialversionuid = 1l;
  //微信支付表id
  private integer weixinid;
  //微信分配的公众账号id（企业号corpid即为此appid）
  private string appid;
  //商户id
  private string mch_id;
  //终端设备号(门店号或收银设备id)，注意：pc网页或公众号内支付请传"web"
  private string device_info;
  //随机字符串:数字+大写字母的组合，32位
  private string nonce_str;
  //签名
  private string sign;
  //商品或支付单简要描述
  private string body;
  //商品名称明细列表
  private string detail;
  //附加参数（例如：用于区别本商户不同的分店）
  private string attach;
  //商户系统内部的订单号
  private string out_trade_no;
  //货币类型:符合iso 4217标准的三位字母代码，默认人民币：cny
  private string fee_type;
  //总金额
  private int total_fee;
  //app和网页支付提交[用户端ip]，native支付填调用微信支付api的机器ip。
  private string spbill_create_ip;
  //订单生成时间，格式为yyyymmddhhmmss，
  private string time_start;
  //订单失效时间，格式为yyyymmddhhmmss，最短失效时间间隔必须大于5分钟[支付宝是30分钟，同样30分钟]
  private string time_expire;
  //商品标记，代金券或立减优惠功能的参数
  private string goods_tag;
  //接收微信支付异步通知回调地址
  private string notify_url;
  //交易类型:jsapi，native，app h5为 mweb
  private string trade_type;
  //trade_type=native，此参数必传。此id为二维码中包含的商品id，商户自行定义。
  private string product_id;
  //no_credit--指定不能使用信用卡支付
  private string limit_pay;
  //trade_type=jsapi，此参数必传，用户在商户appid下的唯一标识
  private string openid;
  //商户内部自己的退款单号
  private string out_refund_no;
  //退款总金额单位为分
  private int refund_fee;
  //操作员的id默认为mch_id
  private string op_user_id;
  //微信官方提供的订单号
  private string prepayid;
  //记录所对应的member
  private member member;
  //返回给微信的状态码（用于支付回调时）
  public string return_code;
  //微信h5支付时候的场景信息官方的信息模板 {"h5_info"://h5支付固定传"h5_info" 
  //{"type":"",//场景类型 "wap_url":"",//wap网站url地址"wap_name": ""//wap 网站名}}
  public string scene_info;
  public string getscene_info() {
    return scene_info;
  }
  public void setscene_info(string scene_info) {
    this.scene_info = scene_info;
  }
  public string getreturn_code() {
    return return_code;
  }
  public void setreturn_code(string return_code) {
    this.return_code = return_code;
  }
  public string getappid() {
    return appid;
  }
  public string getmch_id() {
    return mch_id;
  }
  public string getdevice_info() {
    return device_info;
  }
  public string getnonce_str() {
    return nonce_str;
  }
  public string getsign() {
    return sign;
  }
  public string getbody() {
    return body;
  }
  public string getdetail() {
    return detail;
  }
  public string getattach() {
    return attach;
  }
  public string getout_trade_no() {
    return out_trade_no;
  }
  public string getfee_type() {
    return fee_type;
  }
  public int gettotal_fee() {
    return total_fee;
  }
  public string getspbill_create_ip() {
    return spbill_create_ip;
  }
  public string gettime_start() {
    return time_start;
  }
  public string gettime_expire() {
    return time_expire;
  }
  public string getgoods_tag() {
    return goods_tag;
  }
  public string getnotify_url() {
    return notify_url;
  }
  public string gettrade_type() {
    return trade_type;
  }
  public string getproduct_id() {
    return product_id;
  }
  public string getlimit_pay() {
    return limit_pay;
  }
  public string getopenid() {
    return openid;
  }
  public void setappid(string appid) {
    this.appid = appid;
  }
  public void setmch_id(string mch_id) {
    this.mch_id = mch_id;
  }
  public void setdevice_info(string device_info) {
    this.device_info = device_info;
  }
  public void setnonce_str(string nonce_str) {
    this.nonce_str = nonce_str;
  }
  public void setsign(string sign) {
    this.sign = sign;
  }
  public void setbody(string body) {
    this.body = body;
  }
  public void setdetail(string detail) {
    this.detail = detail;
  }
  public void setattach(string attach) {
    this.attach = attach;
  }
  public void setout_trade_no(string out_trade_no) {
    this.out_trade_no = out_trade_no;
  }
  public void setfee_type(string fee_type) {
    this.fee_type = fee_type;
  }
  public void settotal_fee(int total_fee) {
    this.total_fee = total_fee;
  }
  public void setspbill_create_ip(string spbill_create_ip) {
    this.spbill_create_ip = spbill_create_ip;
  }
  public void settime_start(string time_start) {
    this.time_start = time_start;
  }
  public void settime_expire(string time_expire) {
    this.time_expire = time_expire;
  }
  public void setgoods_tag(string goods_tag) {
    this.goods_tag = goods_tag;
  }
  public void setnotify_url(string notify_url) {
    this.notify_url = notify_url;
  }
  public void settrade_type(string trade_type) {
    this.trade_type = trade_type;
  }
  public void setproduct_id(string product_id) {
    this.product_id = product_id;
  }
  public void setlimit_pay(string limit_pay) {
    this.limit_pay = limit_pay;
  }
  public void setopenid(string openid) {
    this.openid = openid;
  }
  public string getout_refund_no() {
    return out_refund_no;
  }
  public void setout_refund_no(string out_refund_no) {
    this.out_refund_no = out_refund_no;
  }
  public int getrefund_fee() {
    return refund_fee;
  }
  public void setrefund_fee(int refund_fee) {
    this.refund_fee = refund_fee;
  }
  public integer getweixinid() {
    return weixinid;
  }
  public void setweixinid(integer weixinid) {
    this.weixinid = weixinid;
  }
  public member getmember() {
    return member;
  }
  public void setmember(member member) {
    this.member = member;
  }
  public string getprepayid() {
    return prepayid;
  }
  public void setprepayid(string prepayid) {
    this.prepayid = prepayid;
  }
  public string getop_user_id() {
    return op_user_id;
  }
  public void setop_user_id(string op_user_id) {
    this.op_user_id = op_user_id;
  }


}

统一下单微信返回的参数组（xml）

package com.wellness.platfront.entity.weixin;

/**
 * 统一下单微信返回的参数组（xml）
 * @author 
 * @date 2017年08月11日
 */
public class unifiedorderresult {
  private string appid;//appid
  private string mch_id;//商家id
  private string device_info;//设备号
  private string nonce_str;//随机字符串
  private string sign;//签名
  private string result_code;//错误码
  private string err_code;//错误代码
  private string err_code_des;//错误返回的信息描述
  private string trade_type;//调用接口提交的交易类型，取值如下：jsapi，native，app
  private string prepay_id;//微信生成的预支付回话标识，用于后续接口调用中使用，该值有效期为2小时
  private string code_url;//trade_type为native是有返回，可将该参数值生成二维码展示出来进行扫码支付

  private string return_code;//返回状态码success/fail此字段是通信标识，非交易标识，交易是否成功需要查看result_code来判断
  private string return_msg;//返回信息
  public string getappid() {
    return appid;
  }
  public string getmch_id() {
    return mch_id;
  }
  public string getdevice_info() {
    return device_info;
  }
  public string getnonce_str() {
    return nonce_str;
  }
  public string getsign() {
    return sign;
  }
  public string getresult_code() {
    return result_code;
  }
  public string geterr_code() {
    return err_code;
  }
  public string geterr_code_des() {
    return err_code_des;
  }
  public string gettrade_type() {
    return trade_type;
  }
  public string getprepay_id() {
    return prepay_id;
  }
  public string getcode_url() {
    return code_url;
  }
  public void setappid(string appid) {
    this.appid = appid;
  }
  public void setmch_id(string mch_id) {
    this.mch_id = mch_id;
  }
  public void setdevice_info(string device_info) {
    this.device_info = device_info;
  }
  public void setnonce_str(string nonce_str) {
    this.nonce_str = nonce_str;
  }
  public void setsign(string sign) {
    this.sign = sign;
  }
  public void setresult_code(string result_code) {
    this.result_code = result_code;
  }
  public void seterr_code(string err_code) {
    this.err_code = err_code;
  }
  public void seterr_code_des(string err_code_des) {
    this.err_code_des = err_code_des;
  }
  public void settrade_type(string trade_type) {
    this.trade_type = trade_type;
  }
  public void setprepay_id(string prepay_id) {
    this.prepay_id = prepay_id;
  }
  public void setcode_url(string code_url) {
    this.code_url = code_url;
  }
  public string getreturn_code() {
    return return_code;
  }
  public string getreturn_msg() {
    return return_msg;
  }
  public void setreturn_code(string return_code) {
    this.return_code = return_code;
  }
  public void setreturn_msg(string return_msg) {
    this.return_msg = return_msg;
  }

}

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