@Controller
@RequestMapping("/cardd.do")
public class CartoorderAction{
 
 public static void main(String[] args) {
  
  
 }
 
    @Autowired
 private KtdpService  ktdpService;
   

@Autowired
 private TixianService tixianService;
 @Autowired
 private DingDanService dingDanService;

@Autowired
 private HttpServletRequest request;
 
 /**
  * 支付回调
  * @param request
  * @return
  * @throws IOException
  */
 @RequestMapping
 public String execute(HttpServletRequest request,HttpServletResponse response) throws IOException
 {
  //请修改数据库状态
  InputStream is = request.getInputStream();
  byte[] b = new byte[1024];
  int size = is.read(b);
  String str = new String(b, 0, size);
  System.out.println(str);
  // 获取请求数据
  PayNotify payNotify = XMLConverUtil.convertToObject(PayNotify.class,
    str);

// 签名判断略...
  String sign = payNotify.getSign();

boolean f = SignatureUtil.validateAppSignature(payNotify,
    WeixinConfig.PAY_KEY);
  
 
  // 支付成功
  if ("SUCCESS".equals(payNotify.getResult_code())
    && "SUCCESS".equals(payNotify.getReturn_code())) {
   String wpayid = payNotify.getOut_trade_no();
   String money = payNotify.getTotal_fee();
   String opid = payNotify.getOpenid();
           
   Member member = ktdpService.findByOrderId(wpayid);
   ktdpService.update(member);
   tixianService.addwpay(opid, money, wpayid);
   //修改状态
   dingDanService.changemember(member,Float.parseFloat(money));
   dingDanService.gethavepuboid(wpayid);
   
   
   response.getOutputStream().write("success".getBytes());

} else {
   response.getOutputStream().write("error".getBytes());
  }

return null;
 }
 
 @RequestMapping(params="method=tijiaodd")
 public String toPay(HttpServletRequest request) throws UnsupportedEncodingException
 {
  // 1.得openId
  String openId = (String) request.getSession().getAttribute("openId");
  
  String orderId = UUID.randomUUID().toString().replaceAll("-", "");
  Member member = ktdpService.findByOpenId(openId);
  
  
   //  参数 
  String dizhi = request.getParameter("dizhi");
     dizhi = new String(dizhi.getBytes("ISO-8859-1"), "UTF-8");
     String ids = request.getParameter("ids");
     //System.out.println(ids);
     String money=request.getParameter("money");
  
      // 写订单
     String wpayId=tixianService.getwpayId();
     member.setOrderId(wpayId);
  ktdpService.update(member);
  String[] cid = ids.split("x");
     
     tixianService.addDindan(member, cid, dizhi,wpayId);
       
     
  // 2.去支付
  String notifyUrl = URLManager.getServerURL(request)+"/cardd.do";
  String json=JSSDKUtil.setPayParam(request, notifyUrl, money, wpayId, openId);
        request.setAttribute("json", json);
  // 4.调用微信支付
  return "/pay_example.jsp";
  
 }
 
}

//pay.jsp