java服务端微信APP支付接口详解
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2024-02-25 18:34:33
一、微信app支付接入商户服务中心
[申请流程指引] (https://open.weixin.qq.com/cgi-bin/showdocument?actio...
一、微信app支付接入商户服务中心
二、开始开发
1、配置相关的配置信息
1.1、配置appid（android）、mch_id（ios）、微信支付后的回调地址
sys.properties配置文件: appid=wx***************1 mch_id=1********2 notify_url=http://6*.***.***.**/returnmsg.do //回调通知的地址,一定是要可以直接访问的地址
2、微信支付–下单
@responsebody
@requestmapping(value = "/weixinpay.do", produces = "text/html;charset=utf-8",method={requestmethod.post})
public static string weixinpay(string body, //商品描述
string detail, //商品详情
string attach, //附加数据，在查询api和支付通知中原样返回，该字段主要用于商户携带订单的自定义数据
string out_trade_no, //商户系统内部的订单号,32个字符内、可包含字母, 其他说明见商户订单号
string total_price, //订单总金额，单位为分，详见支付金额
string spbill_create_ip //用户端实际ip
) throws exception {
weixinconfigutils config = new weixinconfigutils();
//参数组
string appid = config.appid;//微信开放平台审核通过的应用appid
system.out.println("appid是："+appid);
string mch_id = config.mch_id;
system.out.println("mch_id是："+mch_id);
string nonce_str = randcharsutils.getrandomstring(16);
system.out.println("随机字符串是："+nonce_str);
body = body;//"测试微信支付0.01_2";
detail = detail;//"0.01_元测试开始";
//attach = attach;//"备用参数，先留着，后面会有用的";
//string out_trade_no = orderutil.getorderno();//"2015112500001000811017342394";
double totalfee =0;
try{
totalfee=double.parsedouble(total_price);////单位是分，即是0.01元
}catch (exception e) {
totalfee=0;
}
int total_fee=(int) (totalfee*100);
spbill_create_ip = spbill_create_ip;//"127.0.0.1";
string time_start = randcharsutils.timestart();
system.out.println(time_start);
string time_expire = randcharsutils.timeexpire();
system.out.println(time_expire);
string notify_url = config.notify_url;
system.out.println("notify_url是："+notify_url);
string trade_type = "app";
//参数：开始生成签名
sortedmap<object,object> parameters = new treemap<object,object>();
parameters.put("appid", appid);
parameters.put("mch_id", mch_id);
parameters.put("nonce_str", nonce_str);
parameters.put("body", body);
//parameters.put("nonce_str", nonce_str);
parameters.put("detail", detail);
parameters.put("attach", attach);
parameters.put("out_trade_no", out_trade_no);
parameters.put("total_fee", total_fee);
parameters.put("time_start", time_start);
parameters.put("time_expire", time_expire);
parameters.put("notify_url", notify_url);
parameters.put("trade_type", trade_type);
parameters.put("spbill_create_ip", spbill_create_ip);
string sign = wxsignutils.createsign("utf-8", parameters);
system.out.println("签名是："+sign);
unifiedorder unifiedorder = new unifiedorder();
unifiedorder.setappid(appid);
unifiedorder.setmch_id(mch_id);
unifiedorder.setnonce_str(nonce_str);
unifiedorder.setsign(sign);
unifiedorder.setbody(body);
unifiedorder.setdetail(detail);
unifiedorder.setattach(attach);
unifiedorder.setout_trade_no(out_trade_no);
unifiedorder.settotal_fee(total_fee);
unifiedorder.setspbill_create_ip(spbill_create_ip);
unifiedorder.settime_start(time_start);
unifiedorder.settime_expire(time_expire);
unifiedorder.setnotify_url(notify_url);
unifiedorder.settrade_type(trade_type);
system.out.println(md5utils.md5("fenxiangzhuyi") + "========================");
//构造xml参数
string xmlinfo = httpxmlutils.xmlinfo(unifiedorder);
string wxurl = "https://api.mch.weixin.qq.com/pay/unifiedorder";
string method = "post";
string weixinpost = httpxmlutils.httpsrequest(wxurl, method, xmlinfo).tostring();
system.out.println(weixinpost);
parsexmlutils.jdomparsexml(weixinpost);
string json = jsonutil.xml2jsonstring(weixinpost);
system.out.println("=========================================================");
bean b = jsonutil.getsinglebean(json, bean.class);
if(null!=b){
weixinorder weixin = b.getxml();
//参数：开始生成签名
sortedmap<object,object> par = new treemap<object,object>();
par.put("appid", weixin.getappid());
par.put("partnerid", weixin.getmch_id());
par.put("prepayid", weixin.getprepay_id());
par.put("package", "sign=wxpay");
par.put("noncestr", weixin.getnonce_str());
//时间戳
date date = new date();
long time = date.gettime();
//mysq 时间戳只有10位 要做处理
string dateline = time + "";
dateline = dateline.substring(0, 10);
par.put("timestamp", dateline);
string signnew = wxsignutils.createsign("utf-8", par);
system.out.println("再次签名是："+signnew);
setpay setpay = new setpay();
setpay.setappid(weixin.getappid());
setpay.setpartnerid(weixin.getmch_id());
setpay.setprepayid(weixin.getprepay_id());
setpay.setnoncestr(weixin.getnonce_str());
setpay.settimestamp(dateline);
setpay.setsign(signnew);
setpay.setpack("sign=wxpay");
jsonobject js = jsonobject.fromobject(setpay);
stringbuilder msg = new stringbuilder();
msg.append("{\"code\":\"1\",");
msg.append("\"msg\":\"查询成功！\",");
msg.append("\"datas\":");
msg.append(js.tostring());
msg.append("}");
system.out.println(js);
return msg.tostring();
}
stringbuilder msg = new stringbuilder();
msg.append("{\"code\":\"1\",");
msg.append("\"msg\":\"查询成功！\",");
msg.append("\"datas\":");
msg.append("支付失败！");
msg.append("}");
return msg.tostring();
}
2.1、微信支付签名算法sign
package com.wx.weixincontroller.pay.weixin.utils;
import java.util.iterator;
import java.util.map;
import java.util.set;
import java.util.sortedmap;
import com.wx.weixin.utils.md5utils;
/**
* 微信支付签名
* @author iyjrg_xiebin
* @date 2016年10月25日下午4:47:07
*/
public class wxsignutils {
//http://mch.weixin.qq.com/wiki/doc/api/index.php?chapter=4_3
//商户key：改成公司申请的即可
//32位密码设置地址：http://www.sexauth.com/ jdex1hvufnm1sdcb0e81t36k0d0f15nc
private static string key = "***cb**e**ef**c*e*d***e*fd***cb*";
/**
* 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=" + key);
system.out.println("字符串拼接后是："+sb.tostring());
string sign = md5util.md5encode(sb.tostring(), characterencoding).touppercase();
return sign;
}
}
2.2、post提交xml格式的参数
package com.wx.weixincontroller.pay.weixin.utils;
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.net.httpurlconnection;
import java.net.malformedurlexception;
import java.net.url;
import javax.net.ssl.httpsurlconnection;
import com. com.wx.weixin.wxcontroller.pay.weixin.entity.unifiedorder;
/**
* post提交xml格式的参数
* @author iyjrg_xiebin
* @date 2016年10月25日下午3:33:38
*/
public class httpxmlutils {
/**
* 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;
}
/**
* 构造xml参数
* @param xml
* @return
*/
public static string xmlinfo(unifiedorder unifiedorder){
//构造xml参数的时候，至少又是个必传参数
/*
* <xml>
<appid>wx2421b1c4370ec43b</appid>
<attach>支付测试</attach>
<body>jsapi支付测试</body>
<mch_id>10000100</mch_id>
<nonce_str>1add1a30ac87aa2db72f57a2375d8fec</nonce_str>
<notify_url>http://wxpay.weixin.qq.com/pub_v2/pay/notify.v2.php</notify_url>
<openid>oupf8umuajo_m2pxb1q9znjwes6o</openid>
<out_trade_no>1415659990</out_trade_no>
<spbill_create_ip>14.23.150.211</spbill_create_ip>
<total_fee>1</total_fee>
<trade_type>jsapi</trade_type>
<sign>0cb01533b8c1ef103065174f50bca001</sign>
</xml>
*/
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 "";
}
/**
* 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 "";
}
}
3、微信支付–回调通知业务处理
//通知处理类
@responsebody
@requestmapping(value = "/returnmsg.do", produces = "text/html;charset=utf-8",method={requestmethod.post})
public string returnmsg(httpservletrequest request, httpservletresponse response) throws exception {
// 解析结果存储在hashmap
map<string, string> map = new hashmap<string, string>();
inputstream inputstream = request.getinputstream();
// 读取输入流
saxreader reader = new saxreader();
document document = reader.read(inputstream);
// 得到xml根元素
element root = document.getrootelement();
// 得到根元素的所有子节点
list<element> elementlist = root.elements();
// 遍历所有子节点
for (element e : elementlist) {
map.put(e.getname(), e.gettext());
}
jsonobject json = jsonobject.fromobject(map);
system.out.println("===消息通知的结果：" + json.tostring() + "==========================");
system.out.println("===return_code===" + map.get("return_code"));
system.out.println("===return_msg===" + map.get("return_msg"));
system.out.println("===out_trade_no===" + map.get("out_trade_no"));
//验证签名的过程
//判断是否支付成功
if(map.get("return_code").equals("success")) {
/**
*支付成功之后的业务处理
*/
// 释放资源
inputstream.close();
inputstream = null;
//bis.close();
return "success";
}
}
if (map.get("return_code").equals("fail")) {
/**
*支付失败后的业务处理
*/
// 释放资源
inputstream.close();
inputstream = null;
return "success";
}
}
// 释放资源
inputstream.close();
inputstream = null;
return "success";
}
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