接收付款结果消息

创建接收付款消息的WEB方法

编写ZfbController.java代码

@ApiOperation("接收消息通知")
    @RequestMapping("/recieveAppMessage")
    public void recieveAppMessage(HttpServletRequest request, HttpServletResponse response) throws Exception {
        request.setCharacterEncoding("utf-8");
        String tradeNo = request.getParameter("trade_no");
        String code = request.getParameter("out_trade_no");
        String tradeStatus = request.getParameter("trade_status");
        Enumeration<String> enumeration=request.getParameterNames();
        HashMap<String,String> map=new HashMap<>();
        while(enumeration.hasMoreElements()){
            String name=enumeration.nextElement();
            String value=request.getParameter(name);
            map.put(name,value);
        }
        boolean bool=AlipaySignature.rsaCheckV1(map,app_publicKey,"UTF-8","RSA2");
        if(bool){
            if ("TRADE_FINISHED".equals(tradeStatus) || "TRADE_SUCCESS".equals(tradeStatus)) {
                UpdateWrapper wrapper = new UpdateWrapper();
                wrapper.eq("code", code);
                wrapper.set("status", 2);
                wrapper.set("payment_type", 2);
                orderService.update(wrapper);
            }
            response.setCharacterEncoding("utf-8");
            Writer writer = response.getWriter();
            writer.write("success");
            writer.close();
        }
        else {
            response.sendError(500,"数字签名验证失败");
        }
    }