教你用Java在个人电脑上实现微信扫码支付
短信预约 -IT技能 免费直播动态提醒
Java实现PC微信扫码支付
做一个电商网站支付功能必不可少，那我们今天就来盘一盘微信支付。
微信支付官方网站
业务流程：
开发指引文档
支付服务开发前提准备：
1.SDK下载：SDK
2.利用外网穿透，获得一个外网域名：natapp
3.APPID，商户ID，密钥
注：上面三个参数需要自己申请
开发阶段：
导入依赖：
<!--eureka的客户端依赖-->
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-thymeleaf</artifactId>
</dependency>
<!-- http客户端 -->
<dependency>
<groupId>org.apache.httpcomponents</groupId>
<artifactId>httpclient</artifactId>
<version>4.5.3</version>
</dependency>
<!-- 二维码 -->
<dependency>
<groupId>com.google.zxing</groupId>
<artifactId>core</artifactId>
<version>3.3.3</version>
</dependency>
<!-- 生成二维码 -->
<dependency>
<groupId>com.google.zxing</groupId>
<artifactId>javase</artifactId>
<version>3.3.3</version>
</dependency>
<!--websocket 服务器主动发送请求给websocket-->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-websocket</artifactId>
</dependency>
微信支付配置类
public class MyWXConfig extends WXPayConfig {
//账户的APPID
@Override
public String getAppID() {
return "wx307113892f15a42e";
}
//商户ID
@Override
public String getMchID() {
return "1508236581";
}
//秘钥
@Override
public String getKey() {
return "HJd7sHGHd6djgdgFG5778GFfhghghgfg";
}
@Override
public InputStream getCertStream() {
return null;
}
@Override
public IWXPayDomain getWXPayDomain() {
return new WXPayDomain();
}
class WXPayDomain implements IWXPayDomain{
@Override
public void report(String domain, long elapsedTimeMillis, Exception ex) {
}
@Override
public DomainInfo getDomain(WXPayConfig config) {
return new DomainInfo("api.mch.weixin.qq.com",true);
}
}
}
websocket配置类：
package com.cloud.config;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.socket.server.standard.ServerEndpointExporter;
@Configuration
public class WebSocketConfig {
@Bean
public ServerEndpointExporter serverEndpointExporter(){
return new ServerEndpointExporter();
}
}
wensocket工具类：
package com.cloud.config;
import org.springframework.stereotype.Component;
import javax.websocket.OnClose;
import javax.websocket.OnMessage;
import javax.websocket.OnOpen;
import javax.websocket.Session;
import javax.websocket.server.ServerEndpoint;
import java.io.IOException;
@ServerEndpoint(value = "/eshop")
@Component
public class WebSocketUtils {
//WebSocket的对话对象
private static Session session = null;
//建立和前台页面连接后的回调方法
@OnOpen
public void onOpen(Session session){
System.out.println("建立连接"+session);
//给连接赋值
WebSocketUtils.session = session;
}
@OnMessage
public void onMessage(String message, Session session){
System.out.println("收到前台消息：" + message);
}
@OnClose
public void onClose(Session session) throws IOException {
System.out.println("连接关闭");
session.close();
}
public static void sendMessage(String message) throws IOException {
System.out.println("发送消息：" + message);
if( WebSocketUtils.session != null) {
WebSocketUtils.session.getBasicRemote().sendText(message);
}
}
}
service：
package com.cloud.service;
import com.cloud.utils.MyWXConfig;
import com.cloud.utils.WXPay;
import com.cloud.utils.WXPayUtil;
import com.google.zxing.BarcodeFormat;
import com.google.zxing.EncodeHintType;
import com.google.zxing.MultiFormatWriter;
import com.google.zxing.client.j2se.MatrixToImageWriter;
import com.google.zxing.common.BitMatrix;
import com.google.zxing.qrcode.decoder.ErrorCorrectionLevel;
import org.springframework.stereotype.Service;
import javax.servlet.http.HttpServletResponse;
import java.util.HashMap;
import java.util.Map;
import java.util.UUID;
@Service
public class PayService {
public Map<String, String> makeOrder(String goodsId, Long price) throws Exception {
//创建支付对象
MyWXConfig config = new MyWXConfig();
WXPay wxPay = new WXPay(config);
Map<String,String> map = new HashMap<>();
map.put("appid",config.getAppID());
map.put("mch_id",config.getMchID());
map.put("device_info","WEB");
map.put("nonce_str", UUID.randomUUID().toString().replace("-",""));
map.put("body","商城购物");
String tradeNo = UUID.randomUUID().toString().replace("-", "");
map.put("out_trade_no", tradeNo);
map.put("fee_type","CNY");
map.put("total_fee",String.valueOf(price));
map.put("notify_url","http://68dhbz.natappfree.cc/pay/rollback"); //微信对商户后台的回调接口
map.put("trade_type","NATIVE");
map.put("product_id",goodsId);
//执行统一下单
Map<String, String> result = wxPay.unifiedOrder(map);
System.out.println("result:"+result);
//保存订单号
result.put("trade_no",tradeNo);
return result;
}
public void makeQRCode(String url, HttpServletResponse response){
//通过支付链接生成二维码
HashMap<EncodeHintType, Object> hints = new HashMap<>();
hints.put(EncodeHintType.CHARACTER_SET, "UTF-8");
hints.put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.M);
hints.put(EncodeHintType.MARGIN, 2);
try {
BitMatrix bitMatrix = new MultiFormatWriter().encode(url, BarcodeFormat.QR_CODE, 200, 200, hints);
MatrixToImageWriter.writeToStream(bitMatrix, "PNG", response.getOutputStream());
System.out.println("创建二维码完成");
} catch (Exception e) {
e.printStackTrace();
}
}
public String checkOrder(String tradeNo) throws Exception {
MyWXConfig config = new MyWXConfig();
String str =
"<xml>"+
"<appid>"+config.getAppID()+"</appid>"+
"<mch_id>"+config.getMchID()+"</mch_id>"+
"<nonce_str>"+UUID.randomUUID().toString().replace("-","")+"</nonce_str>"+
"<out_trade_no>"+tradeNo+"</out_trade_no>"+
"<sign>5E00F9F72173C9449F802411E36208734B8138870ED3F66D8E2821D55B317078</sign>"+
"</xml>";
WXPay pay = new WXPay(config);
Map<String,String> map = WXPayUtil.xmlToMap(str);
Map<String, String> map2 = pay.orderQuery(map);
String state = map2.get("trade_state");
System.out.println("订单"+tradeNo+",状态"+state);
return state;
}
}
controller：
package com.cloud.controller;
import com.cloud.config.WebSocketUtils;
import com.cloud.service.PayService;
import com.cloud.utils.WXPayUtil;
import org.apache.tomcat.util.http.fileupload.util.Streams;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.util.StringUtils;
import org.springframework.web.bind.annotation.*;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.util.Map;
@RestController
@RequestMapping("/pay")
public class PayController {
@Autowired
private PayService payService;
private String tradeNo;
@GetMapping("/code")
public void qrcode(@RequestParam("goodsId")String goodsId,
@RequestParam("price")Long price,
HttpServletResponse response){
try {
Map<String,String> map = payService.makeOrder(goodsId, price);
payService.makeQRCode(map.get("code_url"),response);
System.out.println("生成订单号：" + map.get("trade_no"));
tradeNo = map.get("trade_no");
} catch (Exception e) {
e.printStackTrace();
}
}
@PostMapping("/rollback")
public void notify(HttpServletRequest request, HttpServletResponse response) throws Exception {
//获得微信传来的xml字符串
String str = Streams.asString(request.getInputStream());
//将字符串xml转换为Map
Map<String, String> map = WXPayUtil.xmlToMap(str);
//读取订单号
String no = map.get("out_trade_no");
//模拟修改商户后台数据库订单状态
System.out.println("更新订单状态:"+no);
//给微信发送消息
response.getWriter().println("<xml>\n" +
" <return_code><![CDATA[SUCCESS]]></return_code>\n" +
" <return_msg><![CDATA[OK]]></return_msg>\n" +
" <appid><![CDATA["+map.get("appid")+"]]></appid>\n" +
" <mch_id><![CDATA["+map.get("mch_id")+"]]></mch_id>\n" +
" <nonce_str><![CDATA["+map.get("nonce_str")+"]]></nonce_str>\n" +
" <openid><![CDATA["+map.get("openid")+"]]></openid>\n" +
" <sign><![CDATA["+map.get("sign")+"]]></sign>\n" +
" <result_code><![CDATA[SUCCESS]]></result_code>\n" +
" <prepay_id><![CDATA["+map.get("prepay_id")+"]]></prepay_id>\n" +
" <trade_type><![CDATA[NATIVE]]></trade_type>\n" +
"</xml>");
WebSocketUtils.sendMessage("ok");
}
@PostMapping("checkOrder")
public String checkOrder() throws Exception {
System.out.println("trade_no:" + tradeNo);
if(StringUtils.isEmpty(tradeNo)){
return null;
}
String success = payService.checkOrder(tradeNo);
System.out.println("check:" + success);
return success;
}
}
支付页面：
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=9; IE=8; IE=7; IE=EDGE">
<meta http-equiv="X-UA-Compatible" content="IE=EmulateIE7" />
<title>乐优商城--微信支付页</title>
<link rel="icon" href="/assets/img/favicon.ico" rel="external nofollow" rel="external nofollow" >
<link rel="stylesheet" type="text/css" href="css/webbase.css" rel="external nofollow" rel="external nofollow" />
<link rel="stylesheet" type="text/css" href="css/pages-weixinpay.css" rel="external nofollow" />
</head>
<body>
<!--页面顶部白条条，由js动态加载-->
<script type="text/javascript" class="lazy" data-src="plugins/jquery/jquery.min.js"></script>
<div class="top"></div>
<script type="text/javascript">$(".top").load("shortcut.html");</script>
<div class="checkout py-container pay">
<div class="checkout-steps">
<div class="fl weixin">微信支付</div>
<div class="fl sao">
<p class="red">二维码已过期，刷新页面重新获取二维码。</p>
<div class="fl code">
<img class="lazy" data-src="http://api.eshop.com/pay/code?goodsId=11&price=1" alt="">
<div class="saosao">
<p>请使用微信扫一扫</p>
<p>扫描二维码支付</p>
</div>
</div>
<div class="fl phone">
</div>
</div>
<div class="clearfix"></div>
<p><a href="pay.html" rel="external nofollow" target="_blank">> 其他支付方式</a></p>
</div>
</div>
</div>
<script type="text/javascript" class="lazy" data-src="js/plugins/jquery/jquery.min.js"></script>
<script type="text/javascript" class="lazy" data-src="js/plugins/jquery.easing/jquery.easing.min.js"></script>
<script type="text/javascript" class="lazy" data-src="js/plugins/sui/sui.min.js"></script>
<script type="text/javascript" class="lazy" data-src="js/widget/nav.js"></script>
<script type="text/javascript">
$(function(){
$("ul.payType li").click(function(){
$(this).css("border","2px solid #E4393C").siblings().css("border-color","#ddd");
})
})
</script>
<script>
var websocket = null;
//判断当前浏览器是否支持WebSocket
if('WebSocket' in window){
websocket = new WebSocket("ws://localhost:8888/eshop");
}
else{
alert('Not support websocket')
}
//接收到消息的回调方法
websocket.onmessage = function(event){
console.log(event.data);
if(event.data == "ok"){
location.href = "paysuccess.html";
}
}
</script>
</body>
</html>
成功页面：
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=9; IE=8; IE=7; IE=EDGE">
<meta http-equiv="X-UA-Compatible" content="IE=EmulateIE7" />
<title>乐优商城--支付页-成功</title>
<link rel="icon" href="/assets/img/favicon.ico" rel="external nofollow" rel="external nofollow" >
<link rel="stylesheet" type="text/css" href="css/webbase.css" rel="external nofollow" rel="external nofollow" />
<link rel="stylesheet" type="text/css" href="css/pages-paysuccess.css" rel="external nofollow" />
</head>
<body>
<!--head-->
<!--页面顶部白条条，由js动态加载-->
<script type="text/javascript" class="lazy" data-src="plugins/jquery/jquery.min.js"></script>
<div class="top"></div>
<script type="text/javascript">$(".top").load("shortcut.html");</script>
<div class="cart py-container">
<!--主内容-->
<div class="paysuccess">
<div class="success">
<h3><img class="lazy" data-src="img/_/right.png" width="48" height="48"> 恭喜您，支付成功啦！</h3>
<div class="paydetail">
<p>支付方式：微信支付</p>
<p>支付金额：￥1006.00元</p>
<p class="button"><a href="home-index.html" rel="external nofollow" class="sui-btn btn-xlarge btn-danger">查看订单</a> <a href="index.html" rel="external nofollow" class="sui-btn btn-xlarge ">继续购物</a></p>
</div>
</div>
</div>
</div>
<script type="text/javascript" class="lazy" data-src="js/plugins/jquery/jquery.min.js"></script>
<script type="text/javascript" class="lazy" data-src="js/plugins/jquery.easing/jquery.easing.min.js"></script>
<script type="text/javascript" class="lazy" data-src="js/plugins/sui/sui.min.js"></script>
<script type="text/javascript" class="lazy" data-src="components/ui-modules/nav/nav-portal-top.js"></script>
</body>
</html>
java后台显示
到此这篇关于教你用Java在个人电脑上实现微信扫码支付的文章就介绍到这了,更多相关Java微信扫码支付内容请搜索编程网以前的文章或继续浏览下面的相关文章希望大家以后多多支持编程网！
免责声明：
① 本站未注明“稿件来源”的信息均来自网络整理。其文字、图片和音视频稿件的所属权归原作者所有。本站收集整理出于非商业性的教育和科研之目的，并不意味着本站赞同其观点或证实其内容的真实性。仅作为临时的测试数据，供内部测试之用。本站并未授权任何人以任何方式主动获取本站任何信息。
② 本站未注明“稿件来源”的临时测试数据将在测试完成后最终做删除处理。有问题或投稿请发送至: 邮箱/279061341@qq.com QQ/279061341
