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Java中Spring Boot支付宝扫码支付及支付回调的实现代码

程序员文章站 2022-03-23 21:37:07
前言:最近开发支付宝支付功能,总结一下做个分享官方文档:支付宝沙箱地址: https://openhome.alipay.com/platform/appdaily.htm?tab=info支...

前言:最近开发支付宝支付功能,总结一下做个分享

官方文档:
支付宝沙箱地址: https://openhome.alipay.com/platform/appdaily.htm?tab=info
支付宝支付流程:

准备工作:获取支付宝沙箱数据(appid,支付宝网关,rsa2秘,沙箱支付账号等)
集成springboot,使用java代码发起支付请求
支付宝收到支付请求后,返回html代码片段,用于前端展示二维码
扫码支付成功后,支付宝发送同步、异步通知请求,同步、异步通知路径可在配置文件中进行配置
收到异步通知结果后,进行验签,验签通过,返回成功信息通知支付宝不在进行异步通知
此时支付宝支付流程完成,调用支付宝查询接口,确认支付成功

一、获取支付宝沙箱数据

打开上述沙箱地址,获取沙箱配置,查看下图信息

Java中Spring Boot支付宝扫码支付及支付回调的实现代码

二、集成springboot,使用java代码发起支付请求

1、在pom.xml文件添加支付宝依赖

<!-- 支付宝支付 -->
		<dependency>
			<groupid>com.alipay.sdk</groupid>
			<artifactid>alipay-sdk-java</artifactid>
			<version>3.7.26.all</version>
		</dependency>

2、在项目中新建一个支付宝工具类

public class alipayconfig {
	// ↓↓↓↓↓↓↓↓↓↓请在这里配置您的基本信息↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓

	// 应用id,您的appid,收款账号既是您的appid对应支付宝账号
	public static string app_id = "";

	// 商户私钥,您的pkcs8格式rsa2私钥
	public static string merchant_private_key = "";

	// 支付宝公钥,查看地址:https://openhome.alipay.com/platform/keymanage.htm 对应appid下的支付宝公钥。
	public static string alipay_public_key = "";

	// 服务器异步通知页面路径 需http://格式的完整路径,不能加?id=123这类自定义参数,必须外网可以正常访问
	
	// 这里需要配置支付宝回调的后端路径,必须要外网可以访问
	public static string notify_url = "http://localhost:8080/alipay.trade.page.pay-java-utf-8/notify_url.jsp"; 
	
	// 页面跳转同步通知页面路径 需http://格式的完整路径,不能加?id=123这类自定义参数,必须外网可以正常访问
	
	// todo 这里需要配置支付宝回调的前端路径,必须要外网可以访问
	public static string return_url = "http://localhost:8080/alipay.trade.page.pay-java-utf-8/return_url.jsp";	

	// 签名方式
	public static string sign_type = "rsa2";

	// 字符编码格式
	public static string charset = "utf-8";

	// 支付宝网关
	public static string gatewayurl = "https://openapi.alipaydev.com/gateway.do";

	// 日志路径
	public static string log_path = "c:\\";

	// ↑↑↑↑↑↑↑↑↑↑请在这里配置您的基本信息↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑

	/**
	 * 写日志,方便测试(看网站需求,也可以改成把记录存入数据库)
	 * 
	 * @param sword 要写入日志里的文本内容
	 */
	public static void logresult(string sword) {
		filewriter writer = null;
		try {
			writer = new filewriter(log_path + "alipay_log_" + system.currenttimemillis() + ".txt");
			writer.write(sword);
		} catch (exception e) {
			e.printstacktrace();
		} finally {
			if (writer != null) {
				try {
					writer.close();
				} catch (ioexception e) {
					e.printstacktrace();
				}
			}
		}
	}
}

3、定义service

public interface alipayservice {

  /**
   * 发起支付
   * @param outtradeno  订单编号(唯一)
   * @param totalamount  订单价格
   * @param subject    商品名称
   */
  string gopay(string outtradeno,bigdecimal totalamount,string subject) throws exception;
  
  /**
   * 交易查询
   * @param outtradeno 订单编号(唯一)
   */
  string query(string outtradeno) throws alipayapiexception;
  
  /**
   * 交易关闭
   * @param outtradeno订单编号(唯一)
   */
  string close(string outtradeno) throws alipayapiexception;
}

4、实现serviceimpl,发起支付请求,交易查询等

public class alipayserviceimpl implements alipayservice {

	@autowired
	private rechargedetailservice rechargedetailservice;

	@override
	public string gopay(string outtradeno, bigdecimal totalamount, string subject) throws exception {

		alipayclient alipayclient = new defaultalipayclient(alipayconfig.gatewayurl, alipayconfig.app_id,
				alipayconfig.merchant_private_key, "json", alipayconfig.charset, alipayconfig.alipay_public_key,
				alipayconfig.sign_type);

		alipaytradepagepayrequest alipayrequest = new alipaytradepagepayrequest();

		/** 同步通知,支付完成后,支付成功页面 */
		alipayrequest.setreturnurl(alipayconfig.return_url);
		/** 异步通知,支付完成后,需要进行的异步处理 */
		alipayrequest.setnotifyurl(alipayconfig.notify_url);

		alipayrequest.setbizcontent("{\"out_trade_no\":\"" + outtradeno + "\"," + "\"total_amount\":\"" + totalamount
				+ "\"," + "\"subject\":\"" + subject + "\"," + "\"body\":\"付款\"," + "\"timeout_express\":\"15m\","
				+ "\"product_code\":\"fast_instant_trade_pay\"}");

		/** 转换格式 */
		string form = "";

		form = alipayclient.pageexecute(alipayrequest).getbody();

		return form;

	}
	@override
	public string query(string outtradeno) throws alipayapiexception {
		alipayclient alipayclient = new defaultalipayclient(alipayconfig.gatewayurl, alipayconfig.app_id,
				alipayconfig.merchant_private_key, "json", alipayconfig.charset, alipayconfig.alipay_public_key,
				alipayconfig.sign_type);
		alipaytradequeryrequest alipayrequest = new alipaytradequeryrequest();
		/** 请求接口 */
		alipayrequest.setbizcontent("{\"out_trade_no\":\"" + outtradeno + "\"," + "\"trade_no\":\"" + "" + "\"}");
		/** 转换格式 */
		string result = alipayclient.execute(alipayrequest).getbody();
		return result;
	}

	@override
	public string close(string outtradeno) throws alipayapiexception {
		alipaytradecloserequest alipayrequest = new alipaytradecloserequest();
		alipayclient alipayclient = new defaultalipayclient(alipayconfig.gatewayurl, alipayconfig.app_id,
				alipayconfig.merchant_private_key, "json", alipayconfig.charset, alipayconfig.alipay_public_key,
				alipayconfig.sign_type);
		alipayrequest.setbizcontent("{\"out_trade_no\":\"" + outtradeno + "\"," + "\"trade_no\":\"" + "" + "\"}");

		string result = alipayclient.execute(alipayrequest).getbody();

		return result;
	}
}

5、创建支付宝controller

public class alipaycontroller {

  @autowired
  private alipayservice alipayservice;
  
  /**
   * 订单支付
   */
  @getmapping("gopay")
  public map<object, object> gopay() throws exception{
    /** 模仿数据库,从后台调数据*/
    string outtradeno = "202101010001";
    bigdecimaltotalamount = new bigdecimal(10000);
    string subject = "苹果12";
    
    string pay = alipayservice.gopay(outtradeno, totalamount, subject);
    
    map<object, object> pays = new hashmap<>();
    pays.put("pay", pay);
    
    return pays;
  }
  
  /**
   * 交易查询
   */
  @postmapping("aipayquery")
  public result<object> alipayquery() throws exception{
    /**调取支付订单号*/
    string outtradeno = "13123";
    
    string query = alipayservice.query(outtradeno);
    
    object json = jsonobject.tojson(query);
    
    /*jsonobject jobject = new jsonobject();
    jobject.get(query);*/
    return result.success(json);
  }
  
  /**
   * 交易关闭
   * @throws alipayapiexception 
   */
  @postmapping("alipayclose")
  public result<object> alipaycolse() throws alipayapiexception{
    
    /** 调取数据*/
    string outtradeno = "13123";
    
    string close = alipayservice.close(outtradeno);
    
    return result.success(close);
  }
  /**
	 * 异步通知支付结果
	 * 
	 * @param request
	 * @return string
	 * @throws alipayapiexception
	 * @throws parseexception
	 */
	@postmapping("/callback")
	public string alipaynotify(httpservletrequest request) throws exception {

		// 获取支付宝的请求信息
		map<string, string> map = new hashmap<>();
		map<string, string[]> requestparams = request.getparametermap();
		if(requestparams.isempty()) {
			return "failure";
		}
		// 将 map<string,string[]> 转为 map<string,string>
		for (iterator<string> iter = requestparams.keyset().iterator(); iter.hasnext();) {
			string name = iter.next();
			string[] values = requestparams.get(name);
			string valuestr = "";
			for (int i = 0; i < values.length; i++) {
				valuestr = (i == values.length - 1) ? valuestr + values[i] : valuestr + values[i] + ",";
			}
			map.put(name, valuestr);
		}
		// 验签
		boolean signverified = alipaysignature.rsacheckv1(map, alipayconfig.alipay_public_key, alipayconfig.charset,
				alipayconfig.sign_type);
		// 验签通过
		if (signverified) {
			//支付成功后进行操作
		}
		return "failure";
	}
}

到此springboot整合支付宝扫码支付,就完成了

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