微信支付和支付宝在线支付越来越重要，在各种产品中多多少少都会和支付打交道，此篇博客用采用第三方开源代码best-pay-sdk封装好的api作为入门代码。
导入开源jar包到SrpingBoot中：
<dependency>
<groupId>cn.springboot</groupId>
<artifactId>best-pay-sdk</artifactId>
<version>1.3.0</version>
</dependency>
best-pay-sdk具体使用可参考文档：
https://github.com/Pay-Group/best-pay-sdk/blob/develop/doc/use.md
微信支付（native方式）：
新建支付service接口：
package cn.blogsx.pay.service;
import com.lly835.bestpay.model.PayResponse;
import java.math.BigDecimal;
public interface IPayService {
/**
* 创建/发起支付
*/
PayResponse create(String orderId, BigDecimal amount);
}
实现类：
以下公众账号appid、mchId、mchKey 均作演示,并非实际可用值
package cn.blogsx.pay.service.impl;
import cn.blogsx.pay.service.IPayService;
import com.lly835.bestpay.config.WxPayConfig;
import com.lly835.bestpay.enums.BestPayTypeEnum;
import com.lly835.bestpay.model.PayRequest;
import com.lly835.bestpay.model.PayResponse;
import com.lly835.bestpay.service.impl.BestPayServiceImpl;
import lombok.extern.slf4j.Slf4j;
import org.springframework.stereotype.Service;
import java.math.BigDecimal;
/**
* @author Alex
* @create 2020-03-21 16:05
**/
@Slf4j
@Service
public class PayService implements IPayService {
@Override
public PayResponse create(String orderId, BigDecimal amount) {
WxPayConfig wxPayConfig = new WxPayConfig();
wxPayConfig.setAppId("wxd898fcb0fasfda658");
wxPayConfig.setMchId("1483fsfdfsf2");
wxPayConfig.setMchKey("0adf23rBfdsfasB4F6");
wxPayConfig.setNotifyUrl("http://127.0.0.1");
BestPayServiceImpl bestPayService = new BestPayServiceImpl();
bestPayService.setWxPayConfig(wxPayConfig);
PayRequest request = new PayRequest();
request.setOrderName("45342434-测试支付sdk");
request.setOrderId(orderId);
request.setOrderAmount(amount.doubleValue());
request.setPayTypeEnum(BestPayTypeEnum.WXPAY_NATIVE);
PayResponse response = bestPayService.pay(request);
log.info("response={}",response);
return response;
}
}
测试后可微信后台会以xml文档作为返回值，code_url值传递给前端可转为微信支付二维码。这里使用freemarker做测试使用。
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-freemarker</artifactId>
</dependency>
新建Controller:
package cn.blogsx.pay.controller;
import cn.blogsx.pay.service.impl.PayService;
import com.lly835.bestpay.model.PayResponse;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.servlet.ModelAndView;
import java.math.BigDecimal;
import java.util.HashMap;
import java.util.Map;
/**
* @author Alex
* @create 2020-03-21 16:51
**/
@Controller
@RequestMapping("/pay")
public class PayController {
@Autowired
private PayService payService;
@GetMapping("/create")
public ModelAndView create(@RequestParam("orderId") String orderId,
@RequestParam("amount") BigDecimal amount) {
PayResponse payResponse = payService.create(orderId, amount);
Map map = new HashMap<>();
map.put("codeUrl",payResponse.getCodeUrl());
return new ModelAndView("create",map);
}
}
新建名为create的freemarker文件,并采用jquery.qrcode作为前端生成二维码的插件：
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>支付</title>
</head>
<body>
<div id="myQrcode">
</div>
<script src="https://cdn.bootcss.com/jquery/1.5.1/jquery.min.js"></script>
<script src="https://cdn.bootcss.com/jquery.qrcode/1.0/jquery.qrcode.min.js"></script>
<script>
jQuery('#myQrcode').qrcode({
text : "${codeUrl}"
});
</script>
</body>
</html>
浏览器输入：http://localhost:8080/pay/create?orderId=132342145342141&amount=0.01 即可得到支付二维码