这篇文章将为大家详细讲解有关Java如何利用沙箱支付实现电脑扫码支付，小编觉得挺实用的，因此分享给大家做个参考，希望大家阅读完这篇文章后可以有所收获。
一、准备工作
注册支付宝开放平台账号，成为开发者。
地址：https://open.alipay.com/platform/home.htm
进入沙箱，进行配置。
我们可以看到这个界面
后面需要使用的参数
APPID
商户私钥（使用系统默认密钥的公钥模式，点击查看获取）
支付宝公钥
支付宝网关
手机上下载沙箱支付宝 （到时候支付用这个支付宝支付）
下载好支付宝沙箱版后，登录支付宝提供的账号
二、效果展示
随手写的一个前台vue界面
进入确定订单界面，可以添加商品描述
跳转支付界面，利用沙箱支付宝完成支付
完成支付
跳回自己设置的界面
三、实现代码
3.1 后台代码
（我这里利用的是SpringBoot集成的SSM,当然不使用SpringBoot也可以）
3.1.1 pom.xml文件
不用全部的，重点是 ：支付宝sdk包、fastjson
<?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.zking</groupId> <artifactId>springboot02</artifactId> <version>0.0.1-SNAPSHOT</version> <name>springboot02</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>2.1.18.RELEASE</spring-boot.version> </properties> <dependencies> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-jdbc</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> <dependency> <groupId>org.mybatis.spring.boot</groupId> <artifactId>mybatis-spring-boot-starter</artifactId> <version>2.1.4</version> </dependency> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>5.1.44</version> <scope>runtime</scope> </dependency> <dependency> <groupId>org.projectlombok</groupId> <artifactId>lombok</artifactId> <optional>true</optional> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-test</artifactId> <scope>test</scope> </dependency> <dependency> <groupId>org.junit.jupiter</groupId> <artifactId>junit-jupiter</artifactId> <version>RELEASE</version> <scope>test</scope> </dependency> <dependency> <groupId>com.github.pagehelper</groupId> <artifactId>pagehelper-spring-boot-starter</artifactId> <version>1.4.1</version> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-aop</artifactId> <version>2.6.2</version> </dependency><!-- 支付宝sdk包 --> <dependency> <groupId>com.alipay.sdk</groupId> <artifactId>alipay-sdk-java</artifactId> <version>3.1.0</version> </dependency> <!-- fastjson --> <dependency> <groupId>com.alibaba</groupId> <artifactId>fastjson</artifactId> <version>1.2.48</version> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-data-redis</artifactId> </dependency> <!-- https://mvnrepository.com/artifact/com.alibaba/druid --> <dependency> <groupId>com.alibaba</groupId> <artifactId>druid</artifactId> <version>1.2.6</version> </dependency> <!-- https://mvnrepository.com/artifact/log4j/log4j --> <dependency> <groupId>log4j</groupId> <artifactId>log4j</artifactId> <version>1.2.17</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> <!-- mvn mybatis-generator:generate --> <plugin> <groupId>org.mybatis.generator</groupId> <artifactId>mybatis-generator-maven-plugin</artifactId> <version>1.3.2</version> <configuration> <verbose>true</verbose> <overwrite>true</overwrite> <!--配置文件的位置--> <configurationFile>src/main/resources/generatorConfig.xml</configurationFile> </configuration> </plugin> <plugin> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-maven-plugin</artifactId> <version>2.1.18.RELEASE</version> <configuration> <mainClass>com.zking.springboot02.Springboot02Application</mainClass> </configuration> <executions> <execution> <id>repackage</id> <goals> <goal>repackage</goal> </goals> </execution> </executions> </plugin> </plugins> </build></project>3.1.2 model包
package com.zking.springboot02.model;import lombok.Data;@Datapublic class AlipayBean { private static final long serialVersionUID = 1L; private String out_trade_no; private String subject; private String total_amount; private String body; private String timeout_express= "10m"; private String product_code= "FAST_INSTANT_TRADE_PAY"; 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; } public String getSubject() { return subject; } public void setSubject(String subject) { this.subject = subject; } public String getTotal_amount() { return total_amount; } public void setTotal_amount(String total_amount) { this.total_amount = total_amount; } public String getBody() { return body; } public void setBody(String body) { this.body = body; }}3.1.3 utils包AlipayConfig类
（请配置好该类,防止报错）
appId：APPID,沙箱应用提供的
privateKey: 商户私钥,点击公钥证书查看
returnUrl : 支付完成后跳转的页面，例如我填的是：http://localhost:8088/
package com.zking.springboot02.utils;import lombok.Data;import org.springframework.context.annotation.Configuration;import org.springframework.context.annotation.PropertySource;import org.springframework.stereotype.Component;@Configuration@Data@Componentpublic class AlipayConfig { private String appId = ""; private String privateKey = ""; private String publicKey = "MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAyqAN9WzWigim0/3fBK97RFZ7Juu31+DfXMVHTHSTP+4WPvr80zTiIQmT9xTFVGBgD8BBX0XELxqLQxsYQm/MgEgccHTnCKPP7Ci979YuwZyjOysdTc6BNO/6RqPZruih7wSYDJNuJUgY/hwuWi+owUDbHL7NvZ8r/TaIJvEzzhJVrTMsIBQBe66LRE7gE2avwEV8Qck9e4yexsDUD7ja1+2T1ltfHAP2u/SBOD+7PkkPgVkINPDHt4bXZ9DIhPhosiw8IidEEniXj/Ku1wtgETll/btJljhhXq98JHBlw94+yx+BQ+9s2S2CjXkxfdZDB9s+jFy80e6UIV76xxfB0QIDAQAB"; private String notifyUrl = "https://www.duan33f.top"; private String returnUrl = ""; private String signType = "RSA2"; private String charset = "utf-8"; private String gatewayUrl = "https://openapi.alipaydev.com/gateway.do"; private String logPath = "C:\\";}Alipay类
package com.zking.springboot02.utils;import com.alibaba.fastjson.JSON;import com.alipay.api.AlipayApiException;import com.alipay.api.AlipayClient;import com.alipay.api.DefaultAlipayClient;import com.alipay.api.request.AlipayTradePagePayRequest;import com.zking.springboot02.model.AlipayBean;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.stereotype.Component;import javax.annotation.Resource;@Componentpublic class Alipay { @Autowired private AlipayConfig alipayConfig; public String pay(AlipayBean alipayBean) throws AlipayApiException { // 1、获得初始化的AlipayClient String serverUrl = alipayConfig.getGatewayUrl(); String appId = alipayConfig.getAppId(); String privateKey = alipayConfig.getPrivateKey(); String format = "json"; String charset = alipayConfig.getCharset(); String alipayPublicKey = alipayConfig.getPublicKey(); String signType = alipayConfig.getSignType(); String returnUrl = alipayConfig.getReturnUrl(); String notifyUrl = alipayConfig.getNotifyUrl(); //System.out.println(appId); AlipayClient alipayClient = new DefaultAlipayClient(serverUrl, appId, privateKey, format, charset, alipayPublicKey, signType); // 2、设置请求参数 AlipayTradePagePayRequest alipayRequest = new AlipayTradePagePayRequest(); // 页面跳转同步通知页面路径 alipayRequest.setReturnUrl(returnUrl); // 服务器异步通知页面路径 alipayRequest.setNotifyUrl(notifyUrl); // 封装参数 alipayRequest.setBizContent(JSON.toJSONString(alipayBean)); // 3、请求支付宝进行付款，并获取支付结果 String result = alipayClient.pageExecute(alipayRequest).getBody(); // 返回付款信息 return result; }}3.1.4 Service包
PayService接口
package com.zking.springboot02.service;import com.alipay.api.AlipayApiException;import com.zking.springboot02.model.AlipayBean;public interface PayService { String aliPay(AlipayBean alipayBean) throws AlipayApiException;}PayServiceImpl类
package com.zking.springboot02.service.impl;import com.alipay.api.AlipayApiException;import com.zking.springboot02.model.AlipayBean;import com.zking.springboot02.service.PayService;import com.zking.springboot02.utils.Alipay;import org.springframework.stereotype.Service;import javax.annotation.Resource;@Servicepublic class PayServiceImpl implements PayService { @Resource private Alipay alipay; @Override public String aliPay(AlipayBean alipayBean) throws AlipayApiException { return alipay.pay(alipayBean); }}3.1.5 contorller包
payController类
package com.zking.springboot02.contorller;import com.alipay.api.AlipayApiException;import com.zking.springboot02.model.AlipayBean;import com.zking.springboot02.service.PayService;import org.springframework.web.bind.annotation.CrossOrigin;import org.springframework.web.bind.annotation.PostMapping;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.bind.annotation.RestController;import javax.annotation.Resource;import java.util.HashMap;import java.util.Map;@RestController@RequestMapping("/pay")@CrossOriginpublic class PayController { @Resource private PayService payService; @PostMapping("/alipay") public Map alipay(AlipayBean alipayBean) throws AlipayApiException { System.out.println(alipayBean); Map<String,Object> map = new HashMap<String,Object>(); String str = payService.aliPay(alipayBean); System.out.println(str); map.put("msg",str); map.put("code",0);// return map; }}3.1.6 application.yml文件
server: port: 8080 #端口号 servlet: context-path: /s02 #项目名3.2 前台代码
（前台是利用脚手架搭建的Vue项目）
3.2.1 src下api包下action.js文件
export default {//服务器'SERVER': 'http://localhost:8080/s02', 'alipay' : 'http://localhost:8080/s02/pay/alipay',//获得请求的完整地址，用于mockjs测试时使用'getFullPath': k => {return this.SERVER + this[k];}}3.2.2 src下api包下http.js文件
import axios from 'axios'import qs from 'qs'//引入action模块，并添加至axios的类属性urls上import action from '@/api/action'axios.urls = action// axios默认配置axios.defaults.timeout = 10000; // 超时时间// axios.defaults.baseURL = 'http://localhost:8080/crm'; // 默认地址axios.defaults.baseURL = action.SERVER;//整理数据// 只适用于 POST,PUT,PATCH，transformRequest` 允许在向服务器发送前，修改请求数据axios.defaults.transformRequest = function(data) {data = qs.stringify(data);return data;};// 请求拦截器axios.interceptors.request.use(function(config) {// let jwt = sessionStorage.getItem('jwt');// if (jwt) {// config.headers['jwt'] = jwt;// }return config;}, function(error) {return Promise.reject(error);});// 响应拦截器axios.interceptors.response.use(function(response) {return response;}, function(error) {return Promise.reject(error);});export default axios;3.2.3 src下router下index.js文件
import Vue from 'vue'import Router from 'vue-router'import Shop from '@/views/Shop'import buy from '@/views/buy'Vue.use(Router)export default new Router({ routes: [ { path: '/', name: 'Shop', component: Shop }, { path: '/buy', name: 'buy', component: buy } ]})3.2.4 src下views下Shop.vue文件
<template> <el-table :data="tableData" > <el-table-column prop="out_trade_no" label="编号"> </el-table-column> <el-table-column prop="subject" label="订单名称" > </el-table-column> <el-table-column prop="total_amount" label="付款金额"> </el-table-column> <el-table-column label="操作"> <template slot-scope="scope"> <el-button @click="toBuy(scope.row)" type="text" size="small">去支付</el-button> </template> </el-table-column> </el-table></template><script> export default { name: "Shop", data: function() { return { tableData: [{ out_trade_no: '101', subject: 'Java从入门到入土', total_amount: 33 }, { out_trade_no: '202', subject: 'Mysql删库跑路指南', total_amount: 44 }, { out_trade_no: '303', subject: 'Java编程思想', total_amount: 89 }, { out_trade_no: '404', subject: 'Java设计模式', total_amount: 56 }] }; }, methods: { toBuy(row){ console.log(row); //利用$router.push进行跳转 this.$router.push({ //path后面跟跳转的路由地址 path: '/buy', //name后面跟跳转的路由名字（必须有亲测，不使用命名路由会传参失败） name: 'buy', params: { //imgsListsUrl2是自己定义的名字，this.imgsListsUrl是要被传递的值 payInfo: row } }) } }, created: function() { } }</script><style></style>3.2.5 src下views下buy.vue文件
<template> <div class="main"> <center> <div class="box"> <h3>确定订单</h3> <el-form :model="payInfo" :rules="rules" ref="ruleForm" label-width="100px" class="demo-ruleForm"> <el-form-item label="订单号" prop="out_trade_no"> <el-input v-model="payInfo.out_trade_no" readonly="true"></el-input> </el-form-item> <el-form-item label="商品名称" prop="subject"> <el-input v-model="payInfo.subject" readonly="true"></el-input> </el-form-item> <el-form-item label="商品价格" prop="total_amount"> <el-input v-model="payInfo.total_amount" readonly="true"></el-input> </el-form-item> <el-form-item label="商品描述" prop="body"> <el-input v-model="payInfo.body"></el-input> </el-form-item> <el-button type="primary" plain @click="submit" round>付款</el-button> </el-form> </div> </center> </div></template><script> //import axios from 'axios' export default { name: "buy", data() { return { payInfo: { out_trade_no: '', subject: '', total_amount: null, body: '' } } }, mounted() { //this.$route.params.imgsListsUrl2是传过来的参数 var time = new Date(); this.payInfo = this.$route.params.payInfo this.payInfo.out_trade_no = time.getTime(); }, methods: { submit() { var url = this.axios.urls.alipay;//得到api下action.js中的alipay this.axios.post(url, this.payInfo).then(resp => {//调用后台方法 console.log(resp); const divForm = document.getElementsByTagName('div') if (divForm.length) { document.body.removeChild(divForm[0]) } const div = document.createElement('div') div.innerHTML = resp.data.msg // data就是接口返回的form 表单字符串 document.body.appendChild(div) document.forms[0].setAttribute('target', '_blank') // 新开窗口跳转 document.forms[0].submit() }).catch(resp => { console.log(resp); }); } } }</script><style scoped> .box { width: 800px; } .left { width: 85px; padding-top: 5px; font-size: 15px; } .right { width: 400px; }</style>3.2.6 src下main.js文件
import Vue from 'vue'import ElementUI from 'element-ui' //新添加1import 'element-ui/lib/theme-chalk/index.css' //新添加2，避免后期打包样式不同，要放在import App from './App';之前import axios from '@/api/http' //vue项目对axios的全局配置import App from './App'import router from './router'import VueAxios from 'vue-axios' Vue.use(VueAxios,axios)Vue.use(ElementUI) //新添加3Vue.config.productionTip = falsenew Vue({ el: '#app', router, components: { App }, template: '<App/>'})OK,重要的代码已经完全提供了。
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