微信支付
2024/12/19大约 5 分钟
微信支付
一：微信支付简介
1.1：微信支付申请
第一步：注册公众号（类型须为：服务号）
注册地址：https://mp.weixin.qq.com/cgi-bin/registermidpage?action=index&lang=zh_CN&token=
第二步：认证公众号
公众号认证后才可申请微信支付，认证费：300元/次。
第三步：提交资料申请微信支付
登录公众平台，点击左侧菜单【微信支付】，开始填写资料等待审核，审核时间为1-5个
工作日内。第四步：开户成功，登录商户平台进行验证
资料审核通过后，请登录联系人邮箱查收商户号和密码，并登录商户平台填写财付通备
付金打的小额资金数额，完成账户验证。第五步：在线签署协议
本协议为线上电子协议，签署后方可进行交易及资金结算，签署完立即生效。第六步：申请成功获取秘钥
千锋
- 商户编号mch_id：1497984412
- 商户账号AppID：wx632c8f211f8122c6
- 商户Key：sbNCm1JnevqI36LrEaxFwcaT0hkGxFnC1.2： 微信支付开发文档
在线微信支付开发文档：https://pay.weixin.qq.com/wiki/doc/api/index.html
1.3：调用统一下单接口 (支付订单)
第一步：pom依赖
<dependency>
<groupId>com.github.tedzhdz</groupId>
<artifactId>wxpay-sdk</artifactId>
<version>3.0.10</version>
</dependency>
<dependency>
<groupId>commons-logging</groupId>
<artifactId>commons-logging</artifactId>
<version>1.2</version>
</dependency>第二步：微信配置
package com.freemarker.demo;
import com.github.wxpay.sdk.IWXPayDomain;
import com.github.wxpay.sdk.WXPayConfig;
import java.io.InputStream;
public class WXConfig extends WXPayConfig {
public String getAppID() {
return "wx632c8f211f8122c6";
}
public String getMchID() {
return "1497984412";
}
public String getKey() {
return "sbNCm1JnevqI36LrEaxFwcaT0hkGxFnC";
}
public InputStream getCertStream() {
return null;
}
public IWXPayDomain getWXPayDomain() {
return new IWXPayDomain() {
public void report(String s, long l, Exception e) {
}
public DomainInfo getDomain(WXPayConfig wxPayConfig) {
return new DomainInfo("api.mch.weixin.qq.com",true);
}
};
}
}第三步：测试统一下单接口
步骤：
1:构建配置对象
2:封装请求参数
3:map转xml
4:发送请求WXPayRequest request = new WXPayRequest(config);
5:响应结果转map集合
6:获取支付地址
//测试统一下单接口
//1:构建配置对象
WXConfig config = new WXConfig();
//2:封装请求参数 网页静态化技术
Map params = new HashMap();
params.put("appid",config.getAppID());
params.put("mch_id",config.getMchID());
params.put("nonce_str", WXPayUtil.generateNonceStr());
params.put("body","锋迷商城订单");
params.put("out_trade_no","2020121212");
params.put("total_fee",1+"");
params.put("spbill_create_ip","127.0.0.1");
params.put("notify_url","http://192.168.234.122:8080/notify");
params.put("trade_type","NATIVE");
//3:map转xml
String requestXml = WXPayUtil.generateSignedXml(params, config.getKey());
//4:发送请求WXPayRequest request = new WXPayRequest(config);
WXPayRequest request = new WXPayRequest(config);
String resXML = request.requestWithoutCert("/pay/unifiedorder", UUID.randomUUID().toString(),
requestXml, false);
System.out.println(resXML);
//5:响应XML结果转map集合
Map<String, String> resMap = WXPayUtil.xmlToMap(resXML);
//6:获取支付地址
String code_url = resMap.get("code_url");
System.out.println(code_url);1.4： 二维码插件QRcode.js
<div id="qrcode"></div>
<script>
var qrcode = new QRCode("qrcode", {
text: "http://www.runoob.com",
width: 128,
height: 128,
colorDark : "#000000",
colorLight : "#ffffff",
correctLevel : QRCode.CorrectLevel.H
});
</script>1.5：查询订单状态接口
步骤：
1:构建配置对象
2:封装请求参数
3:map转xml
4:发送请求WXPayRequest request = new WXPayRequest(config);
5:响应结果转map集合
6:获取支付状态 //1:构建配置对象
WXConfig config = new WXConfig();
//2:封装请求参数
Map params = new HashMap();
params.put("appid",config.getAppID());
params.put("mch_id",config.getMchID());
params.put("out_trade_no","2020121212");
params.put("nonce_str",WXPayUtil.generateNonceStr());
//3:map转xml
String requestXML = WXPayUtil.generateSignedXml(params, config.getKey());
//4:发送请求WXPayRequest request = new WXPayRequest(config);
WXPayRequest request = new WXPayRequest(config);
String resXml = request.requestWithoutCert("/pay/orderquery", UUID.randomUUID().toString(),
requestXML, false);
System.out.println(resXml);
//5:响应结果转map集合
Map<String, String> resMap = WXPayUtil.xmlToMap(resXml);
//6:获取支付状态
System.out.println(resMap.get("trade_state"));1.6：关闭订单接口
步骤：
1:构建配置对象
2:封装请求参数
3:map转xml
4:发送请求WXPayRequest request = new WXPayRequest(config);
5:响应结果转map集合
6:获取关闭结果//1:构建配置对象
WXConfig config = new WXConfig();
//2:封装请求参数
Map params = new HashMap();
params.put("appid",config.getAppID());
params.put("mch_id",config.getMchID());
params.put("out_trade_no", "20201212121");
params.put("nonce_str",WXPayUtil.generateNonceStr());
//3:map转xml
String reqeustXML = WXPayUtil.generateSignedXml(params, config.getKey());
//4:发送请求WXPayRequest request = new WXPayRequest(config);
WXPayRequest request = new WXPayRequest(config);
String resXML = request.requestWithoutCert("/pay/closeorder", UUID.randomUUID().toString(),
reqeustXML, false);
//5:响应结果转map集合
Map<String, String> resMap = WXPayUtil.xmlToMap(resXML);
//6:获取关闭结果
System.out.println(resMap.get("result_code"));
System.out.println(resMap.get("result_msg"));二：应用
2.1：统一下单
调用微信支付系统的统一下单接口，返回支付url，url返回给前端，前端生成支付二维码
@Autowired
private OrderClient orderClient;
@Value("${pay.notify_url}")
private String notifyUrl;
@Override
public Result pay(String orderId) {
try {
//查询订单信息
WxbOrder orderInfo = orderClient.findOrderInfo(orderId);
//计算总金额
Integer totalFee = 0;
for (WxbOrderItems item : orderInfo.getOrderItems()) {
Integer buyNum = item.getBuyNum();
String skuPrice = item.getSkuPrice();
double buyPrice = Double.parseDouble(skuPrice);
//1 2.88
int itemPrice = (int)(buyNum*buyPrice*100);
totalFee +=itemPrice;
}
//调用微信的统一下单接口，下单
String payUrl = weixinPay(orderId, totalFee, notifyUrl);
Map data = new HashMap();
data.put("payUrl",payUrl);
data.put("totalFee",totalFee);
data.put("orderId",orderId);
return new Result(true,"下单成功",data);
}catch (Exception e){
return new Result(false,"下单失败");
}
}
private String weixinPay(String orderId,Integer fee,String notifyUrl) throws Exception{
//1.构建配置
MyConfig config = new MyConfig();
//2.封装请求数据
Map<String,String> requestParams = new HashMap<String, String>();
requestParams.put("appid",config.getAppID());
requestParams.put("mch_id",config.getMchID());
requestParams.put("nonce_str", WXPayUtil.generateNonceStr());
requestParams.put("body","微分销");
requestParams.put("out_trade_no",orderId);//业务系统订单号
requestParams.put("total_fee",fee+"");//订单金额，单位为分
requestParams.put("spbill_create_ip","127.0.0.1");
requestParams.put("notify_url",notifyUrl);
requestParams.put("trade_type","NATIVE");//扫码支付
//3.将map转xml串
String reqeuestParamsXml = WXPayUtil.generateSignedXml(requestParams, config.getKey());
//4.发请求
WXPayRequest request = new WXPayRequest(config);
String resultXml = request.requestWithoutCert("/pay/unifiedorder", UUID.randomUUID().toString(), reqeuestParamsXml, false);
System.out.println(resultXml);
//5.将resultXml转map集合
final Map<String, String> resultMap = WXPayUtil.xmlToMap(resultXml);
System.out.println(resultMap.get("code_url"));
return resultMap.get("code_url");
}二维码插件的使用
//生成支付二维码
var qrcode = new QRCode("qrImage", {
text: res.data.payUrl,
width: 256,
height: 256,
colorDark : "#000000",
colorLight : "#ffffff",
correctLevel : QRCode.CorrectLevel.H
});回调
监听延时消息
package com.fengmi.listener;
import com.api.goods.GoodsClient;
import com.fengmi.service.PayService;
import com.fengmi.vo.Result;
import org.apache.rocketmq.spring.annotation.ConsumeMode;
import org.apache.rocketmq.spring.annotation.MessageModel;
import org.apache.rocketmq.spring.annotation.RocketMQMessageListener;
import org.apache.rocketmq.spring.core.RocketMQListener;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
@Component
@RocketMQMessageListener(consumerGroup = "fengmi-pay-consumer-group",
topic = "order-delay",selectorExpression = "order-delay-tag",
consumeMode = ConsumeMode.CONCURRENTLY,
messageModel = MessageModel.CLUSTERING)
public class ConsumerListener implements RocketMQListener<String> {
@Autowired
private PayService payService;
@Autowired
private GoodsClient goodsClient;
public void onMessage(String orderId) {
System.out.println(orderId);
//判断订单的支付状态
Result result = payService.findOrderStatus(orderId);
if (result != null && result.getSuccess() && "NOTPAY".equals(result.getData())) {
//关闭订单
Result result1 = payService.closeOrder(orderId);
if("SUCCESS".equals(result1.getData())){
//释放库存
Result result2 = goodsClient.releaseStore(orderId);
}
}
}
}关闭订单
//关闭订单
public String closeOrder(String orderId) throws Exception{
//1.构建配置
MyConfig config = new MyConfig();
//2.封装请求数据
Map<String,String> requestParams = new HashMap<String, String>();
requestParams.put("appid",config.getAppID());
requestParams.put("mch_id",config.getMchID());
requestParams.put("out_trade_no",orderId );
requestParams.put("nonce_str",WXPayUtil.generateNonceStr());
//3.将map转xml串
String reqeuestParamsXml = WXPayUtil.generateSignedXml(requestParams, config.getKey());
//4.发请求
WXPayRequest request = new WXPayRequest(config);
String resultXml = request.requestWithoutCert("/pay/closeorder", UUID.randomUUID().toString(), reqeuestParamsXml, false);
System.out.println(resultXml);
//5.将resultXml转map集合
final Map<String, String> resultMap = WXPayUtil.xmlToMap(resultXml);
return resultMap.get("result_code");
}