ajax传递json参数到springmvc

前后端交互,经常出现400或者415,这里写个小笔记,已做参考,不断完善

方式一:

前台代码:

        var par ={};
	par.actionId =actionId;
	par.actionComment=actionComment;
	par.actionStatus=1;
	$.ajax({
		type:'post',url:'xx/sxxx/xxxx',contentType: "application/json;charset=utf-8",data:JSON.stringify(par),dataType:'json',success:function (data) {
			alert(data)
		},error:function (){
			alert('error')
		}
	});

后台代码:

    @RequestMapping("/editaction")
    @ResponseBody
    public Result editaction(@RequestBody Map<String,Object> par){
        return trActionManager.editactionById(par);
    }