跳至主要内容

支付宝微信支付的坑

支付宝微信支付的坑

沙箱

Alipay

根据这里商家的账号信息,配置沙箱环境下的appId,商户private key,支付宝公钥(设置商户私钥之后会自动在账户信息处生成)。然后下载这里的沙箱app,登陆客户账户,然后就可以付款。付款成功之后,便会回调我们设置的回调地址。

Wechat

微信沙箱环境的key需要根据真实的key生成,并且有时间限制,需要注意

// 微信的sdk需要去官网下载
WXPay wxpay = new WXPay(config, true, true);

String retrieveSandboxSignKey(WXPayConfig config) {  
  try {  
    Map<String, String> params = new HashMap<>();  
    params.put("mch_id", config.getMchID());  
    params.put("nonce_str", WXPayUtil.generateNonceStr());  
    params.put("sign", WXPayUtil.generateSignature(params, config.getKey()));  
    String strXML = wxpay.requestWithoutCert("/sandboxnew/pay/getsignkey",  
        params, config.getHttpConnectTimeoutMs(), config.getHttpReadTimeoutMs());  
    if (StringUtils.isBlank(strXML)) {  
      throw new SandboxUnavailableException();  
    }  
    Map<String, String> result = WXPayUtil.xmlToMap(strXML);  
    logger.info("retrieve SandboxSignKey:" + result);  
    if ("SUCCESS".equals(result.get("return_code"))) {  
      return result.get("sandbox_signkey");  
    }  
    throw new SandboxUnavailableException();  
  } catch (Exception e) {  
    logger.error("sandbox_signkey exception", e);  
    throw new SandboxUnavailableException(e);  
  }  
}

微信没有沙箱app,所以当扫码支付,H5支付等接口返回正确的二维码或者url之后,微信会默认支付已经成功,立即调用回调接口。

回调

使用 Spring MVC 接收回调的controller写法

  • 支付宝
    • 回调请求虽然是post,但是由于media type是“application/x-www-form-urlencoded”,需要使用@RequestParam来接收;
    • 返回值要用MediaType.TEXT_PLAIN_VALUE
  • 微信
    • 返回值要用MediaType.APPLICATION_XML_VALUE
 
@RestController  
@RequestMapping("/callback")  
public class PaymentCallBackController {  

  // consume "application/x-www-form-urlencoded"
  @RequestMapping(value = "/ali", method = RequestMethod.POST, produces = MediaType.TEXT_PLAIN_VALUE)  
  public String alipay(@RequestParam Map<String, String> body) throws Exception {  
    return paymentService.ackAli(body);  
  }  
  
  @RequestMapping(value = "/wx", method = RequestMethod.POST, produces = MediaType.APPLICATION_XML_VALUE)  
  public String wx(@RequestBody String notifyData) throws Exception {  
    Map<String, String> notifyMap = WXPayUtil.xmlToMap(notifyData);  
    return WXPayUtil.mapToXml(paymentService.ackWeChat(notifyMap));  
  }    
}

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