json格式的Ajax提交示例代码
需要加入:com.springsource.org.apache.commons.logging-1.1.1.jar、org.json.jar和jquery-1.10.0.min.js包
<formclass="form-inline"> 扫码:<inputid="txtQRCode"type="text"> <buttonid="btnReceive">确定</button> </form> <scripttype="text/javascript"> //扫描二维码 $('#btnReceive').click(function(){ $.ajax({ type:"GET", url:"<%=basePath%>asynchronous/receive.do", data:{qrCode:$('#txtQRCode').val()}, dataType:"json", cache:false, success:function(msg){ //varjson=eval('('+msg+')');//拼接的json串 varflag=msg.flag; varinfo=msg.info; if(flag){ alert(info); $('#txtQRCode').val(""); } else{ alert(info); } }, error:function(error){alert(error);} }); }); }); </script> packagecom.utcsoft.pcapps.selfservice.controller; importjava.io.IOException; importjava.io.PrintWriter; importjava.net.UnknownHostException; importjavax.servlet.http.HttpServletRequest; importjavax.servlet.http.HttpServletResponse; importorg.apache.commons.logging.Log; importorg.apache.commons.logging.LogFactory; importorg.json.JSONException; importorg.json.JSONObject; importorg.springframework.stereotype.Controller; importorg.springframework.web.bind.annotation.RequestMapping; importcom.utcsoft.common.attributes.YesNoEnum; importcom.utcsoft.common.util.DateOperate; importcom.utcsoft.pcapps.selfservice.attributes.KeyRequestAttr; importcom.utcsoft.pcapps.selfservice.dao.FlowDao; importcom.utcsoft.pcapps.selfservice.dao.KeyRequestDao; importcom.utcsoft.pcapps.selfservice.entity.Flow; importcom.utcsoft.pcapps.selfservice.entity.KeyRequest; importcom.utcsoft.pcapps.selfservice.entity.UtcUsers; @Controller @RequestMapping(value="/asynchronous") publicclassAsynchronousController{ privatefinalstaticLoglogger=LogFactory.getLog(AsynchronousController.class); /** *扫描二维码将订单改为UTC审核 *@paramrequest *@paramresponse *@throwsIOException *@throwsJSONException */ @RequestMapping(value="/receive") publicvoidreceive(HttpServletRequestrequest,HttpServletResponseresponse)throwsIOException,JSONException{ Stringrets=""; booleanb=false; try{ Stringqrcode=request.getParameter("qrCode")==null?"":request.getParameter("qrCode").toString().trim(); logger.info(qrcode); if(!"".equals(qrcode)){ JSONObjectobj=newJSONObject(qrcode); Stringorderid=obj.getString("orderid").trim(); if(!"".equals(orderid)){ KeyRequestDaokeyDao=newKeyRequestDao(); KeyRequestk=newKeyRequest();//综合信息 k=keyDao.findOneByOrderId(orderid); if(k!=null){ //修改订单状态为审核 intn=keyDao.updateState(orderid,String.valueOf(KeyRequestAttr.KqStateEnum.verify.getStep())); Flowflow=newFlow(); FlowDaoflowDao=newFlowDao(); UtcUsersusers=(UtcUsers)request.getSession().getAttribute("utcUsers"); //将记录插入Flwo表中 flow.setKq_id(orderid); flow.setKq_state(String.valueOf(KeyRequestAttr.KqStateEnum.cus_send.getStep())); flow.setKq_state_to(String.valueOf(KeyRequestAttr.KqStateEnum.verify.getStep())); flow.setIs_Pass(YesNoEnum.Y.getCode()); flow.setUser_id(users.getUser_id()); flow.setUser_id_from(users.getUser_id()); flow.setOpTimer(DateOperate.getDateTime()); intflowNum=flowDao.save(flow); logger.info("扫描二维码提交结果:n="+n+";flowNum="+flowNum); if(n>0){ b=true; rets="UTC接收订单成功"; logger.info("UTC接收订单成功"); } else{ rets="UTC接收订单失败"; logger.info("UTC接收订单失败"); } } else{ rets="订单查询失败"; logger.info("订单查询失败"); } } else{ rets="二维码中订单号为空"; logger.error("二维码中订单号为空"); } } else{ rets="二维码内容为空"; logger.error("二维码内容为空"); } } catch(Exceptione){ e.printStackTrace(); rets=e.getMessage(); logger.error(e.getMessage()); } JSONObjectret=newJSONObject(); ret.put("flag",b); ret.put("info",rets); PrintWriterwrite=response.getWriter(); write.write(ret.toString()); write.flush(); } }