前言
支付宝当面付相比较微信支付的门槛比较低，但是无论对接微信支付还是支付宝支付都是比较麻烦的一件事，这里来记录一下对接支付宝当面付的过程。
我这里已经注册好了支付宝当面付的环境
申请当面付教程：支付宝当面付申请设置教程，支持个人用户
代码
1、依赖
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.alipaytest</groupId>
<artifactId>alipaytest</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>alipaytest</name>
<description>Demo project for Spring Boot</description>
<properties>
<java.version>1.8</java.version>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
<spring-boot.version>2.6.13</spring-boot.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<!-- 引入支付宝-->
<!-- https://mvnrepository.com/artifact/com.alipay.sdk/alipay-easysdk -->
<!-- https://mvnrepository.com/artifact/com.alipay.sdk/alipay-sdk-java -->
<dependency>
<groupId>com.alipay.sdk</groupId>
<artifactId>alipay-sdk-java</artifactId>
<version>3.4.27.ALL</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>cn.hutool</groupId>
<artifactId>hutool-all</artifactId>
<version>5.8.16</version>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-validation</artifactId>
<version>2.3.12.RELEASE</version>
</dependency>
</dependencies>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-dependencies</artifactId>
<version>${spring-boot.version}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.8.1</version>
<configuration>
<source>1.8</source>
<target>1.8</target>
<encoding>UTF-8</encoding>
</configuration>
</plugin>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<version>${spring-boot.version}</version>
<configuration>
<mainClass>com.alipaytest.alipaytest.AlipaytestApplication</mainClass>
<skip>true</skip>
</configuration>
<executions>
<execution>
<id>repackage</id>
<goals>
<goal>repackage</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>
</project>
2、支付宝商户配置
*/
public class AliPayConfig {
// 商户APPID
public static String APPID="你的AppID";//
// 应用私钥pkcs8
public static String RSA_PRIVATE_KEY="你的应用私钥";//真实
// 服务器异步通知页面 http://或者https://完整路径 必须外网可以访问
public static String notify_url="http://127.0.0.1:9090/alipaynotify";
// 同步通知路径，支付后页面跳转
public static String return_url="https://www.baidu.com";
// 请求网关地址
public static String server_URL="https://openapi.alipaydev.com/gateway.do";//
// 编码
public static String CHARSET="UTF-8";
// 返回格式
public static String FORMAT="json";
// 支付宝公钥
public static String ALIPAY_PUBLIC_KEY="你的支付宝公钥";//真实
// RSA2
public static String SIGNTYPE="RSA2";
}
3、接口参数类
package com.alipaytest.pojo;
import com.sun.istack.internal.NotNull;
import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;
import org.springframework.lang.NonNull;
import javax.validation.constraints.NotBlank;
@Data
@AllArgsConstructor
@NoArgsConstructor
public class QrPayParam {
// @NotNull(message = "流水单号不能空")
// String out_trade_no;
@NotBlank(message = "商品名称不能空")
String subject;
@NotBlank(message = "付款金额不能空")
String total_amount;
String body;
// @NotNull(message = "二维码过期时间不能空")
// String timeout_express;
// @NotNull(message = "产品码不能空")
// String product_code;
}
4、Controller接口
package com.alipaytest.controller;
import cn.hutool.core.date.DateTime;
import cn.hutool.core.util.IdUtil;
import cn.hutool.json.JSONObject;
import cn.hutool.json.JSONUtil;
import com.alipay.api.AlipayApiException;
import com.alipay.api.AlipayClient;
import com.alipay.api.DefaultAlipayClient;
import com.alipay.api.domain.AlipayTradePrecreateModel;
import com.alipay.api.request.AlipayTradePrecreateRequest;
import com.alipay.api.response.AlipayTradePrecreateResponse;
import com.alipaytest.config.AliPayConfig;
import com.alipaytest.pojo.QrPayParam;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.bind.annotation.RestController;
import java.math.BigDecimal;
import java.util.HashMap;
/**
* @author niuben
*/
@RestController
public class aliPayController {
@ResponseBody
@PostMapping("/pay")
public HashMap<String, Object> pay(@RequestBody QrPayParam param) throws AlipayApiException {
AlipayClient alipayClient = new DefaultAlipayClient(AliPayConfig.server_URL,
AliPayConfig.APPID, AliPayConfig.RSA_PRIVATE_KEY, AliPayConfig.FORMAT, AliPayConfig.CHARSET,
AliPayConfig.ALIPAY_PUBLIC_KEY, AliPayConfig.SIGNTYPE);
AlipayTradePrecreateRequest request = new AlipayTradePrecreateRequest();
AlipayTradePrecreateModel model = new AlipayTradePrecreateModel();
String idStr = IdUtil.getSnowflakeNextIdStr();//生成的流水号
model.setOutTradeNo(idStr);//设置商家这边的流水单号 后台写
model.setSubject(param.getSubject());//设置商品名称
model.setTotalAmount(param.getTotal_amount());//设置付款金额
model.setBody("test");//设置商品描述
model.setTimeoutExpress("10m");//设置过期时间 格式：xxm 后台写
// model.setProductCode(qrPayParam.getProduct_code());//设置产品码 - 二维码支付的话没有该功能
request.setBizModel(model);//存入请求信息
request.setNotifyUrl(AliPayConfig.notify_url);//设置通知地址
request.setReturnUrl(AliPayConfig.return_url);//设置返回地址,二维码支付此功能无效
// 生成表单，二维码支付无表单
// String form = alipayClient.pageExecute(request).getBody();
// 封装生成请求对象
AlipayTradePrecreateResponse response = alipayClient.execute(request);
// 发送请求，获取返回信息
System.out.println(response.getBody());
HashMap<String, Object> map = new HashMap<>();
// 成功
if (response.isSuccess()){
System.out.println("调用成功");
JSONObject responJson = JSONUtil.parseObj(response.getBody());
JSONObject rsj = (JSONObject)responJson.get("alipay_trade_precreate_response");
String qr_code = (String) rsj.get("qr_code");//获取二维码地址
map.put("qrcode",qr_code);
map.put("out_trade_no",idStr);
return map;
}else {
JSONObject responJson = JSONUtil.parseObj(response.getBody());
JSONObject rsj = (JSONObject)responJson.get("alipay_trade_precreate_response");
String res = (String) rsj.get("sub_msg");//获取返回错误的信息
map.put("sub_msg",res);
return map;
}
}
// 接收异步消息并同步订单状态
@PostMapping("/alipaynotify")
public ApiRequest getnotify(String trade_no, String out_trade_no){
LambdaQueryWrapper<QrPay> wr = new LambdaQueryWrapper<QrPay>().eq(QrPay::getOutTradeNo, out_trade_no);
QrPay order = payService.getOne(wr);
System.out.println(order);
order.setState(1);
order.setPaytime(new DateTime().toString());
order.setTradeNo(trade_no);
System.out.println(order.getOutTradeNo());
boolean update = payService.update(order, wr);//提交修改订单状态
Integer uid = order.getUid();
LambdaQueryWrapper<User> userwr = new LambdaQueryWrapper<User>().eq(User::getId, uid);
User user = userService.getOne(userwr);
BigDecimal money = user.getMoney();//现在余额
System.out.println("现在余额：" +money);
System.out.println("开始加鱼儿---"+ order.getTotalAmount().toString());
BigDecimal newmonry = new BigDecimal( money.add(order.getTotalAmount()).toString());//现在余额加上充值金额
System.out.println("新余额："+newmonry);
user.setMoney(newmonry);
userService.update(user,userwr);
return ApiRequest.ok(update);
}
}
实现效果
前端将返回的链接转化为二维码即可
