Java 使用@RequestBody 启动不受支持的媒体类型
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Spring boot Unsupported Media Type with @RequestBody
提问by jodekpotasu
I checked in several different ways, also downloaded a new project to see what to check where is bug but I still do not know the answer.
我检查了几种不同的方式，还下载了一个新项目来查看要检查的错误在哪里，但我仍然不知道答案。
That is my RestController
那是我的 RestController
@RestController
@RequestMapping(value = "/message")
public class MessageController {
@RequestMapping(value = "/", method = RequestMethod.POST)
public void createMessage(@RequestBody Message message){
System.out.println(message);
}
}
That is my Model
那是我的模型
@Data
@Entity
public class Message {
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
private long id;
private String sender;
private String telephone;
private String message;
}
Gradle dependencies if necessary
如有必要，Gradle 依赖项
dependencies {
compile group: 'com.fasterxml.Hymanson.core', name: 'Hymanson-core', version: '2.9.0.pr3'
compile('org.springframework.boot:spring-boot-starter-data-jpa')
compile('org.springframework.boot:spring-boot-starter-web')
runtime('com.h2database:h2')
runtime('org.postgresql:postgresql')
compileOnly('org.projectlombok:lombok')
testCompile('org.springframework.boot:spring-boot-starter-test')
}
and in postman i'm getting that error
在邮递员中，我收到了那个错误
{ "timestamp": 1495992553884, "status": 415, "error": "Unsupported Media Type", "exception": "org.springframework.web.HttpMediaTypeNotSupportedException",
"message": "Content type 'application/x-www-form-urlencoded;charset=UTF-8' not supported",
"path": "/message/" }
{ "timestamp": 1495992553884, "status": 415, "error": "Unsupported Media Type", "exception": "org.springframework.web.HttpMediaTypeNotSupportedException",
"message": "Content type 'application/x-www -form-urlencoded;charset=UTF-8' 不支持",
"path": "/message/" }
It is simplest way for rest but where I make a mistake?
这是最简单的休息方式，但我哪里出错了？
回答by user2618324
The problem is that when we use application/x-www-form-urlencoded, Spring doesn't understand it as a RequestBody. So, if we want to use this we must remove the @RequestBodyannotation.
问题在于，当我们使用 时application/x-www-form-urlencoded，Spring 并不将其理解为 RequestBody。所以，如果我们想使用它，我们必须删除@RequestBody注释。
@RequestMapping(value = "/", method = RequestMethod.POST, consumes = MediaType.APPLICATION_FORM_URLENCODED_VALUE)
public void createMessage(Message message){
//TODO DO your stuff here
}
回答by adeshina.O
In Postman. under Body, select rawand choose JSON from the drop down menu that appears. Then write the JSON that is the request body. You can't use form-dataor x-www-form-urlencodedwith @RequestBody, they are used when the binding is @ModelAttribute.
在邮递员。在 下Body，raw从出现的下拉菜单中选择并选择 JSON。然后编写作为请求正文的 JSON。您不能使用form-data或x-www-form-urlencodedwith @RequestBody，它们在绑定为 时使用@ModelAttribute。
回答by VK321
I had a similar issue using $.postJquery. By adding correct contentTypeand dataTypeit worked for me.
我在使用$.postJquery 时遇到了类似的问题。通过添加正确contentType，dataType它对我有用。
$.ajax({
type: "POST",
url: "/api/design/save",
data: JSON.stringify({
id: floorId,
shapes: shapes,
}),
contentType: "application/json; charset=utf-8",
dataType: "json",
success: function(data){
console.log(data);
},
error: function(err) {
console.log(err);
}
});
回答by Ankit Kesharwani
You can write the code as headers.put("Content-Type", Arrays.asList("application/json"));
instead of headers.setAccept(Arrays.asList(MediaType.APPLICATION_JSON));
您可以编写代码headers.put("Content-Type", Arrays.asList("application/json"));
，而不是headers.setAccept(Arrays.asList(MediaType.APPLICATION_JSON));
回答by user12858831
I got the same case with Json. Finally only this works Here code on react
我和 Json 遇到了同样的情况。最后只有这个有效 这里代码反应
export function setServices(jsonString) {
var myHeaders = new Headers();
myHeaders.append("Content-Type", "application/json;charset=UTF-8;");
var raw = jsonString;
var requestOptions = {
method: 'POST',
headers: myHeaders,
body: raw,
redirect: 'follow'
};
fetch("http://localhost:8080/setservices", requestOptions)
.then(response => response.text())
.then(result => console.log(result))
.catch(error => console.log('error', error));}
Code on controller
控制器上的代码
@RequestMapping(value = "/setservices", method = RequestMethod.POST,
consumes = MediaType.APPLICATION_JSON_VALUE,
produces = MediaType.APPLICATION_JSON_VALUE)
public @ResponseBody String createMessage() throws Exception {
//do smthg
return "Ok"; }
