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jquery - 将 json 对象传递给 restController 时出现 400（错误请求）

问题描述

我正在发送一段json object using ajax时间RestController ，将其传递给控制器​​，发生以下错误：

vendor.js:8630 PUT http://localhost:8015/campasAdmin/master/updateState 400（错误请求）

这是我的ajax调用：

$(document).on("click","#stateSave",function(event){
                 var stateId=parseInt($("#stateId").val());
                var countryId=parseInt($("#countryName").val());
                alert(countryId);  
                var stateName=$("#stateName").val();
                //parseInt($('#numberValue').val(), 10);
                var JSONObject= {  
                        "stateId":stateId,
                        "countryId":countryId,
                        "stateName":stateName
                            };

                var myJSON = JSON.stringify(JSONObject);
                //var jsonData = JSON.parse(JSONObject);
                console.log(JSONObject);    
                var url = contextPath+"/master/updateState";       
                $.ajax({        
                    url : url,           
                    type:"put",
                    date:myJSON,     
                    contentType:'application/json; charset=utf-8',  
                    async: false,       
                    success:function(response) 
                    {         

                    console.log(response.status);  
                    if(response.status)  
                        {

                         $(".editor").hide();
                         $("#countryTable tbody tr").remove();
                         $(".mainContainer").show();
                        stateList();    
                         Alert.info(response.data);
                        }
                    else{
                        Alert.warn(response.errorMessage);

                    }
                    }        
                }); 


        });

myJSON 对象如下所示：

{stateId: 1, countryId: 1, stateName: "up"}
countryId : 1
stateId   : 1
stateName :"up"

这是我的控制器和放置方法：

@RestController
@RequestMapping(value="/master")
public class MasterController
{

    @Autowired
    private MasterServiceInter service;
    private HttpHeaders headers = null;
    Map<String, Object> message = new HashMap<String, Object>();
    //update state
        @PutMapping("/updateState")
        public ResponseEntity<Map<String, Object>> updateState(@RequestBody State theState) {
            ResponseEntity<Map<String, Object>> responseEntity=null;
            try {  
                System.out.println(theState);

            boolean res =service.updateState(theState) ;        
            if (res) {
                headers.add("head", "State");
                message.put("status", true);
                message.put("data", "State has been updated successfully  !");
                responseEntity= new ResponseEntity<Map<String, Object>>(message, headers, HttpStatus.CREATED);

            } else {
                headers.add("head", "null");
                message.put("status", false);
                message.put("errorMessage", " State has not been updated successfully  ! ");
                responseEntity=new ResponseEntity<Map<String, Object>>(message, headers, HttpStatus.NOT_FOUND);
                }
        }
            catch (Exception e) {  
                // TODO: handle exception  
                e.printStackTrace();
            }
            return responseEntity;
        }




}

我认为它解析JSON对象的问题，我无法追踪它，请帮助我。

标签： jqueryjsonrest

解决方案

抱歉，每个人都在我的 ajax 代码中输入了雾

$.ajax({        
                    url : url,           
                    type:"put",
                    date:myJSON,  // here is the mistake   
                    contentType:'application/json; charset=utf-8',  
                    async: false,       
                    success:function(response) 
                    {         
}
});

它应该是

$.ajax({        
                    url : url,           
                    type:"put",
                    data:myJSON,     
                    contentType:'application/json; charset=utf-8',  
                    async: false,       
                    success:function(response) 
                    {         
                    }});

谢谢大家，并堆积如山

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