微信支付系统
Posted 是九九不是酒酒
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目录
6.创建一个Httpclient的工具类-默认浏览器进行远程调用
1.微信支付的流程
2.微信的接口文档
https://pay.weixin.qq.com/wiki/doc/api/native.php?chapter=9_1
3.新建一个spring-boot的项目
4.导入需要的依赖
<?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>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.3.12.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>springboot</groupId>
<artifactId>demo</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>WeChatPay</name>
<description>Demo project for Spring Boot</description>
<properties>
<java.version>1.8</java.version>
</properties>
<dependencies>
<!--微信需要的依赖-->
<dependency>
<groupId>com.github.wxpay</groupId>
<artifactId>wxpay-sdk</artifactId>
<version>0.0.3</version>
</dependency>
<!--java端发送的请求 在java端远程模拟浏览器能访问微信的接口-->
<dependency>
<groupId>repMaven.org.apache.httpcomponents</groupId>
<artifactId>httpclient</artifactId>
<version>4.5.3</version>
</dependency>
<dependency>
<groupId>com.baomidou</groupId>
<artifactId>mybatis-plus-generator</artifactId>
<version>3.5.2</version>
</dependency>
<dependency>
<groupId>org.freemarker</groupId>
<artifactId>freemarker</artifactId>
<version>2.3.31</version>
</dependency>
<!--mybatis-plus的依赖-->
<dependency>
<groupId>com.baomidou</groupId>
<artifactId>mybatis-plus-boot-starter</artifactId>
<version>3.5.2</version>
</dependency>
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid-spring-boot-starter</artifactId>
<version>1.2.8</version>
</dependency>
<!--swagger的依赖-->
<dependency>
<groupId>com.github.xiaoymin</groupId>
<artifactId>swagger-bootstrap-ui</artifactId>
<version>1.9.6</version>
</dependency>
<!--spring的依赖-->
<dependency>
<groupId>com.spring4all</groupId>
<artifactId>swagger-spring-boot-starter</artifactId>
<version>1.9.1.RELEASE</version>
</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>2.2.2</version>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<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>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<configuration>
<excludes>
<exclude>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
</exclude>
</excludes>
</configuration>
</plugin>
</plugins>
</build>
</project>
5.配置application文件
server.port=8888
spring.datasource.druid.driver-class-name=com.mysql.cj.jdbc.Driver
spring.datasource.username=root
spring.datasource.druid.password=grt081141
spring.datasource.druid.url=jdbc:mysql://localhost:3306/wechatpay?serverTimezone=Asia/Shanghai
#微信app的id 商家的id 秘钥--我们自己没有办法申请，因为申请需要营业执照
weixin.appid=wx8087d8149331d27c
weixin.mch_id=1532192611
weixin.api_key=Cc1583806290715838062907158380626.创建一个Httpclient的工具类-默认浏览器进行远程调用
package springboot.util;
import org.apache.http.Consts;
import org.apache.http.HttpEntity;
import org.apache.http.NameValuePair;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.*;
import org.apache.http.conn.ssl.SSLConnectionSocketFactory;
import org.apache.http.conn.ssl.SSLContextBuilder;
import org.apache.http.conn.ssl.TrustStrategy;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.message.BasicNameValuePair;
import org.apache.http.util.EntityUtils;
import javax.net.ssl.SSLContext;
import java.io.IOException;
import java.security.cert.CertificateException;
import java.security.cert.X509Certificate;
import java.text.ParseException;
import java.util.HashMap;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;
/**
* http请求客户端
*
* @author 必须引入httpclient的依赖：在java端模拟浏览器的效果。
*
*/
public class HttpClient
private String url;
private Map<String, String> param;
private int statusCode;
private String content;
private String xmlParam;
private boolean isHttps;
public boolean isHttps()
return isHttps;
public void setHttps(boolean isHttps)
this.isHttps = isHttps;
public String getXmlParam()
return xmlParam;
public void setXmlParam(String xmlParam)
this.xmlParam = xmlParam;
public HttpClient(String url, Map<String, String> param)
this.url = url;
this.param = param;
public HttpClient(String url)
this.url = url;
public void setParameter(Map<String, String> map)
param = map;
public void addParameter(String key, String value)
if (param == null)
param = new HashMap<String, String>();
param.put(key, value);
public void post() throws ClientProtocolException, IOException
HttpPost http = new HttpPost(url);
setEntity(http);
execute(http);
public void put() throws ClientProtocolException, IOException
HttpPut http = new HttpPut(url);
setEntity(http);
execute(http);
public void get() throws ClientProtocolException, IOException
if (param != null)
StringBuilder url = new StringBuilder(this.url);
boolean isFirst = true;
for (String key : param.keySet())
if (isFirst)
url.append("?");
else
url.append("&");
url.append(key).append("=").append(param.get(key));
this.url = url.toString();
HttpGet http = new HttpGet(url);
execute(http);
/**
* set http post,put param
*/
private void setEntity(HttpEntityEnclosingRequestBase http)
if (param != null)
List<NameValuePair> nvps = new LinkedList<NameValuePair>();
for (String key : param.keySet())
nvps.add(new BasicNameValuePair(key, param.get(key))); // 参数
http.setEntity(new UrlEncodedFormEntity(nvps, Consts.UTF_8)); // 设置参数
if (xmlParam != null)
http.setEntity(new StringEntity(xmlParam, Consts.UTF_8));
private void execute(HttpUriRequest http) throws ClientProtocolException,
IOException
CloseableHttpClient httpClient = null;
try
if (isHttps)
SSLContext sslContext = new SSLContextBuilder()
.loadTrustMaterial(null, new TrustStrategy()
// 信任所有
public boolean isTrusted(X509Certificate[] chain,
String authType)
throws CertificateException
return true;
).build();
SSLConnectionSocketFactory sslsf = new SSLConnectionSocketFactory(
sslContext);
httpClient = HttpClients.custom().setSSLSocketFactory(sslsf)
.build();
else
httpClient = HttpClients.createDefault();
CloseableHttpResponse response = httpClient.execute(http);
try
if (response != null)
if (response.getStatusLine() != null)
statusCode = response.getStatusLine().getStatusCode();
HttpEntity entity = response.getEntity();
// 响应内容
content = EntityUtils.toString(entity, Consts.UTF_8);
finally
response.close();
catch (Exception e)
e.printStackTrace();
finally
httpClient.close();
public int getStatusCode()
return statusCode;
public String getContent() throws ParseException, IOException
return content;
7.自动生成器--帮我们自动生成类,接口等
public class Generator
public static void main(String[] args)
FastAutoGenerator.create("jdbc:mysql://localhost:3306/wechatpay?serverTimezone=Asia/Shanghai", "root", "grt081141" +
"")
.globalConfig(builder ->
builder.author("guan") // 设置作者
.enableSwagger() // 开启 swagger 模式
.fileOverride() // 覆盖已生成文件
.outputDir(".\\\\src\\\\main\\\\java\\\\"); // 指定输出目录
)
.packageConfig(builder ->
builder.parent("springboot") // 设置父包名
.moduleName("system") // 设置父包模块名
.pathInfo(Collections.singletonMap(OutputFile.xml, "src\\\\main\\\\resources\\\\mapper\\\\")); // 设置mapperXml生成路径
)
.strategyConfig(builder ->
builder.addInclude("t_order")// 设置需要生成的表名
.addTablePrefix("t_"); // 设置过滤表前缀
)
.templateEngine(new FreemarkerTemplateEngine()) // 使用Freemarker引擎模板，默认的是Velocity引擎模板
.execute();
8. 前端代码
8.1.新建vue项目
8.1.1.打开cmd命令窗口,输入命令打开窗口
vue ui
8.1.2. 新建
8.2.安装element插件和axios的依赖(省略)
8.3.引入axios和设置axios基础路径
//引入axios import axios from "axios"; Vue.config.productionTip = false //设置axios基础路径 axios.defaults.baseURL="http://localhost:8888" Vue.prototype.axios=axios;
8.4.前端页面
<template>
<div id="app">
<el-button type="primary" @click="pay">支付</el-button>
<!--二维码的弹出层-->
<el-dialog
title="收银台"
:visible.sync="dislogVisible"
width="30%">
<div style="text-align: center">
<p>微信支付payResult.price元</p>
<div style="border: 1px solid #f3f3f3; width: 220px;padding: 0px;margin: 0px auto">
<!--使用vue-qr-->
<vue-qr
:text="payResult.codeUrl"
:margin="0"
colorDark="green"
:logo="require('@/assets/logo.png')"
colorLight="#fff"
:size="200">
</vue-qr>
</div>
</div>
<el-divider></el-divider>
<div style="font-size: 13px;">
提示:<br>
二维码两小时内有效，请及时扫码支付<br>
</div>
</el-dialog>
</div>
</template>
<script>
//引入vue-qr
import vueQr from 'vue-qr'
export default
name: 'app',
//注册vue-qr
components:
vueQr
,
data()
return
orderNo:"c60801fbdd2d45f9adg",
codeUrl:"",
//定时器
timer1:"",
dislogVisible:false,
//得到响应的结果
payResult:
//价格
price:0,
//二维码路径 借助vue-qr 可以把二维码地址转为二维码图片
codeUrl:"",
orderNo:"",
,
methods:
pay()
this.dislogVisible=true;
this.axios.post("/system/order/createNavite/"+this.orderNo).then(result=>
if(result.data.code===2000)
console.log(result)
this.payResult=result.data.data;
//设置一个定时器任务,每隔3秒调用一次
this.timer1=setInterval(()=>
this.queryPayStatus(this.payResult.orderNo)
,3000);
)
</script>
<style>
</style>9.根据订单号创建二维码--后端
9.1.controller层
@CrossOrigin
@RestController
@RequestMapping("/system/order")
public class OrderController
//自动注入
@Autowired
private IOrderService orderService;
//根据订单号创建二维码
@RequestMapping("createNavite/orderNo")
public CommonResult createNative(@PathVariable String orderNo)
return orderService.createNative(orderNo);
9.2.Iservice
CommonResult createNative(String orderNo);9.3.service层
@Service
public class OrderServiceImpl extends ServiceImpl<OrderMapper, Order> implements IOrderService
@Autowired
private OrderMapper orderMapper;
@Value("$weixin.appid")
private String appId;
@Value("$weixin.mch_id")
private String mchId;
@Value("$weixin.api_key")
private String apikey;
@Override
public CommonResult createNative(String orderNo)
//1.根据订单号查询出订单信息
QueryWrapper wrapper=new QueryWrapper();
//前端传过来的订单号跟数据库中的订单号一致
wrapper.eq("order_no",orderNo);
//订单状态为0
wrapper.eq("status",0);
Order order=orderMapper.selectOne(wrapper);
//判断订单信息不为空
if (order != null)
try
//接口里面的参数要的是xml类型
//设置请求的参数个数格式为xml格式
//将请求参数封装成map
Map<String, String> params = new HashMap<>();
//添加公众账号Id
params.put("appid", appId);
//添加商品号
params.put("mch_id", mchId);
//添加随机字符串--微信自带算法
params.put("nonce_str", WXPayUtil.generateNonceStr());
//添加商品描述
params.put("body", order.getCourseTitle());
//添加商品订单号
params.put("out_trade_no", orderNo);
//添加标价金额 --单位是分，要转换
params.put("total_fee", new BigDecimal(0.01).multiply(new BigDecimal(100)).longValue() + "");
//添加终端ip
params.put("spbill_create_ip", "127.0.0.1");
//添加通知地址
params.put("notify_url", "http://localhost:8888/pay/back");
//添加交易类型
params.put("trade_type", "NATIVE");
//创建HttpClient对象--作用远程调用
HttpClient client = new HttpClient("https://api.mch.weixin.qq.com/pay/unifiedorder");
//支持https协议
client.setHttps(true);
//将map转为xml格式--设置请求的参数
client.setXmlParam(WXPayUtil.generateSignedXml(params,apikey));
//发送请求
client.post();
//获取请求响应响应的结果
String content = client.getContent();
System.out.println(content);
//将String类型转换为map返货给前端
Map<String, String> map = WXPayUtil.xmlToMap(content);
if (map.get("result_code").equals("SUCCESS"))
Map<String,Object> result=new HashMap<>();
result.put("codeUrl",map.get("code_url"));
result.put("price",order.getTotalFee());
result.put("orderNo",orderNo);
return new CommonResult(2000,"生成二维码",result);
catch (Exception e)
e.printStackTrace();
return new CommonResult(5000,"订单失效",null);
9.4.实体类
9.4.1.CommonResult
@Data
@NoArgsConstructor
@AllArgsConstructor
@ApiModel("返回同一的信息")
public class CommonResult
@ApiModelProperty("状态码 2000成功，5000失败")
private int code;
@ApiModelProperty("信息")
private String msg;
@ApiModelProperty("数据")
private Object data;
9.4.2.Order
package springboot.system.entity;
import com.baomidou.mybatisplus.annotation.TableName;
import java.io.Serializable;
import java.math.BigDecimal;
import java.time.LocalDateTime;
import java.util.Date;
import io.swagger.annotations.ApiModel;
import io.swagger.annotations.ApiModelProperty;
/**
* <p>
* 订单
* </p>
*
* @author guan
* @since 2022-08-13
*/
@TableName("t_order")
@ApiModel(value = "Order对象", description = "订单")
public class Order implements Serializable
private static final long serialVersionUID = 1L;
private String id;
@ApiModelProperty("订单号")
private String orderNo;
@ApiModelProperty("课程id")
private String courseId;
@ApiModelProperty("课程名称")
private String courseTitle;
@ApiModelProperty("课程封面")
private String courseCover;
@ApiModelProperty("讲师名称")
private String teacherName;
@ApiModelProperty("会员id")
private String memberId;
@ApiModelProperty("会员昵称")
private String nickname;
@ApiModelProperty("会员手机")
private String mobile;
@ApiModelProperty("订单金额（分）")
private BigDecimal totalFee;
@ApiModelProperty("支付类型（0：微信 1：支付宝）")
private Integer payType;
@ApiModelProperty("订单状态（0：未支付 1：已支付）")
private Integer status;
@ApiModelProperty("逻辑删除 1（true）已删除， 0（false）未删除")
private Boolean isDeleted;
@ApiModelProperty("创建时间")
private LocalDateTime gmtCreate;
@ApiModelProperty("更新时间")
private LocalDateTime gmtModified;
public String getId()
return id;
public void setId(String id)
this.id = id;
public String getOrderNo()
return orderNo;
public void setOrderNo(String orderNo)
this.orderNo = orderNo;
public String getCourseId()
return courseId;
public void setCourseId(String courseId)
this.courseId = courseId;
public String getCourseTitle()
return courseTitle;
public void setCourseTitle(String courseTitle)
this.courseTitle = courseTitle;
public String getCourseCover()
return courseCover;
public void setCourseCover(String courseCover)
this.courseCover = courseCover;
public String getTeacherName()
return teacherName;
public void setTeacherName(String teacherName)
this.teacherName = teacherName;
public String getMemberId()
return memberId;
public void setMemberId(String memberId)
this.memberId = memberId;
public String getNickname()
return nickname;
public void setNickname(String nickname)
this.nickname = nickname;
public String getMobile()
return mobile;
public void setMobile(String mobile)
this.mobile = mobile;
public BigDecimal getTotalFee()
return totalFee;
public void setTotalFee(BigDecimal totalFee)
this.totalFee = totalFee;
public Integer getPayType()
return payType;
public void setPayType(Integer payType)
this.payType = payType;
public Integer getStatus()
return status;
public void setStatus(Integer status)
this.status = status;
public Boolean getIsDeleted()
return isDeleted;
public void setIsDeleted(Boolean isDeleted)
this.isDeleted = isDeleted;
public LocalDateTime getGmtCreate()
return gmtCreate;
public void setGmtCreate(LocalDateTime gmtCreate)
this.gmtCreate = gmtCreate;
public LocalDateTime getGmtModified()
return gmtModified;
public void setGmtModified(LocalDateTime gmtModified)
this.gmtModified = gmtModified;
@Override
public String toString()
return "Order" +
"id=" + id +
", orderNo=" + orderNo +
", courseId=" + courseId +
", courseTitle=" + courseTitle +
", courseCover=" + courseCover +
", teacherName=" + teacherName +
", memberId=" + memberId +
", nickname=" + nickname +
", mobile=" + mobile +
", totalFee=" + totalFee +
", payType=" + payType +
", status=" + status +
", isDeleted=" + isDeleted +
", gmtCreate=" + gmtCreate +
", gmtModified=" + gmtModified +
"";
10.根据订单状态查询微信支付情况
10.1.前端
//根据订单号查询支付状态
queryPayStatus(orderNo)
this.axios.post("system/order/queryPayStatus/"+orderNo).then(result=>
if (result.data.code===2000)
//清除定时器
clearInterval(this.timer1)
this.timer1=null;
this.$message.success("支付成功")
//关闭弹出层
this.dislogVisible=false;
)
,10.2.后端
10.2.1.controller
@RequestMapping("queryPayStatus/orderNo")
public CommonResult queryPayStatus(@PathVariable String orderNo)
return orderService.queryPayStatus(orderNo);
10.2.2.Iservice
CommonResult queryPayStatus(String orderNo);10.2.3.service层
@Override
public CommonResult queryPayStatus(String orderNo)
//1.根据订单状态查询微信支付情况
try
HttpClient client=new HttpClient("https://api.mch.weixin.qq.com/pay/orderquery");
//设置参数--分装成map在转为xml格式
Map<String, String> params = new HashMap<>();
//添加公众账号Id
params.put("appid", appId);
//添加商品号
params.put("mch_id", mchId);
//添加商品订单号
params.put("out_trade_no",orderNo);
//添加随机字符串
params.put("nonce_str",WXPayUtil.generateNonceStr());
//支持Https
client.setHttps(true);
client.setXmlParam(WXPayUtil.generateSignedXml(params,apikey));
client.post();
String content = client.getContent();
//转换为map
Map<String, String> map = WXPayUtil.xmlToMap(content);
if (map.get("trade_state").equals("SUCCESS"))
//1.修改订单的状态
Order order=new Order();
order.setStatus(1);
order.setGmtModified(LocalDateTime.now() );
QueryWrapper<Order> wrapper=new QueryWrapper<>();
//根据订单号
wrapper.eq("order_no",orderNo);
wrapper.eq("status",0);
orderMapper.update(order,wrapper);
return new CommonResult(2000,"支付成功",null);
catch (Exception e)
e.printStackTrace();
return new CommonResult(5000,"支付失败",null);
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