前台JSON后台接收的时候，转变为对象的要求@resquestBody的使用

前台代码如下

function deleteApplicationController(index){
    alert(index);
    var row = $("#applicationControlList").datagrid('getRows')[index];
    var  applicationControl = new Object();//这个名字是随便取的，但是它的属性要与实体BEEN相同
    alert(row.applicationControlId);
    applicationControl.applicationControlId = row.applicationControlId;
    applicationControl.versionNumber = row.versionNumber;
    console.info(applicationControl);
    if(confirm("确定要删除选中的记录?")){  
        $.ajax({
            type:'POST',
            contentType : 'application/json;charset=UTF-8',//这句话一定要与后台@requestBody相应，//如果没有它的话，只有@requestBody，那么我们的请求地址会是错误的。
            url:'../../applicationControl/deleteApplicationControl',   
            data:JSON.stringify(applicationControl),
            dataType:'json',
            success:function(data){
                if(data.result=='Y'){
                    $("#applicationControlList").datagrid('reload');
                    $.messager.alert('提示','删除成功');
                }else{
                    $.messager.alert('提示','删除失败');
                }
            }
        });
    }
}

后台代码

    @RequestMapping("deleteApplicationControl")
    public void deleteApplicationControl(@RequestBody  ApplicationControl applicationControl,HttpServletRequest request,HttpServletResponse response){
        User user = null;
        try{
            user = StringUtil.checkRequest(request);
            //String applicationControlId = request.getParameter("id");
            Long applicationControlId = applicationControl.getApplicationControlId();

            Long applicationId = null;
            if(null != applicationControlId){
                 //applicationId = Long.parseLong(applicationControlId);
            }
            int length = applicationControlService.deleteApplicationControl(applicationControlId);
            Map<String, Object>   resultMap = new HashMap<String, Object>();
            if(length>0){
                resultMap.put(Constant.RESULT, Constant.TRUE);
            }
            StringUtil.outputJsonObject(resultMap,response);
        }catch(Exception e){
            int resultCode = sysLogService.writeLog(SysLogUtil.exceptionLogMap(this, Constant.ERROR_LEVEL, Constant.INFO_DIFFUSION_PUBLISH, Constant.FIND_APPLICATION_CONTROLLER_LIST, e,user.getUserId()));
            StringUtil.exceptionHandle(response,resultCode);
        }
    }