java Spring MVC-REST POST-错误请求 400
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Spring MVC- REST POST - Bad Request 400
提问by Alan
I am trying to post a request to my service, but it's not working. I am getting 400 Bad Request. I have GET requests that are working perfectly in the same controller.
我正在尝试向我的服务发布请求，但它不起作用。我得到400 Bad Request. 我有在同一个控制器中完美运行的 GET 请求。
Here is the method:
这是方法：
@RequestMapping(value = "/assign", method = RequestMethod.POST, consumes = MediaType.APPLICATION_JSON_VALUE)
@ResponseBody
public Form5398Obj arriveTrip(@PathVariable String siteId,
@RequestBody ErrorMsg anError) throws Exception {
System.out.println(anError.toString());
}
The ErrorMessage java class is as follows:
ErrorMessage java类如下：
public class ErrorMsg {
private String code;
private String msg;
private String request;
public ErrorMsg(String code, String msg, String request)
{
this.code = code;
this.msg = msg;
this.request = request;
}
public String getCode() {
return code;
}
public void setCode(String code) {
this.code = code;
}
public String getMsg() {
return msg;
}
public void setMsg(String msg) {
this.msg = msg;
}
public String getRequest() {
return request;
}
public void setRequest(String request) {
this.request = request;
}
}
I did not configure anything else. What else do I need to do to get it to work? I am using JavaConfig, do I need to add any bean declarations?
我没有配置任何其他东西。我还需要做什么才能让它工作？我正在使用 JavaConfig，是否需要添加任何 bean 声明？
I am sending: with Content-Type: application/json
我正在发送：内容类型：应用程序/json
{
"code" : "101",
"msg" : "Hello Test",
"request" : "1"
}
回答by Adam
I believe you need a no-argument constructor for ErrorMsg so that Hymanson can instantiate an object to populate for the incoming request. Otherwise it would not know how the parameters in your 3 parameter constructor should be populated.
我相信您需要一个 ErrorMsg 的无参数构造函数，以便 Hymanson 可以实例化一个对象来填充传入的请求。否则它不会知道应该如何填充 3 参数构造函数中的参数。
Try adding the following
尝试添加以下内容
public ErrorMsg() {
}
