当我尝试使用后端的API发布元素时,我遇到了一个莫名其妙的错误。 API返回错误代码415,与媒体类型相关:
Failed to load resource: the server responded with a status of 415 ()
我的后端给我发回了这个错误:
Resolved exception caused by Handler execution: org.springframework.web.HttpMediaTypeNotSupportedException: Content type 'text/plain;charset=UTF-8' not supported
编辑:Guru解决方案出错:
Resolved exception caused by Handler execution: org.springframework.web.HttpMediaTypeNotSupportedException: Content type 'text/plain' not supported
令人讨厌的是我已将此标题添加到我的请求中:
Content-Type: application/json
正文已正确解析为JSON格式。
我正在使用Angular 5
,我的后端是使用Spring
开发的。
Angular客户端代码:
postProject(project: Project) {
const headers: HttpHeaders = new HttpHeaders();
headers.append('Content-Type', 'application/json');
return this.http.post('http://localhost:8443/projects', project.body(), {headers: headers})
.map(response => response);
}
其中body方法是:
body() {
const object = {
id: this.id,
name: this.name,
'num_execs': this.num_execs
};
return JSON.stringify(object);
}
Spring API代码:
@RequestMapping(value = "", method = RequestMethod.POST, consumes = MediaType.APPLICATION_JSON_VALUE)
public ResponseEntity<?> addLocation(@RequestBody Project project) {
return new ResponseEntity<>(esProjectService.save(project), HttpStatus.OK);
}
类的RequestMapping为/projects
:
@RestController
@RequestMapping("/projects")
public class ProjectResource {
@RequestMapping(value = "", method = RequestMethod.POST, consumes = MediaType.APPLICATION_JSON_VALUE)
public ResponseEntity<?> addLocation(@RequestBody Project project) {
return new ResponseEntity<>(esProjectService.save(project), HttpStatus.OK);
}
... OTHER METHODS...
}
答案 0 :(得分:0)
我已经完成了这个,解决它的一种方法是指定类型@RequestPart(value =“nameOfResource”和consumemes = {“multipart / form-data”}
不要忘记在Angular中指定Content的名称。 我希望它有所帮助。
以下是一个例子:
RequestMapping(value = "/add", method = RequestMethod.POST, consumes = {"multipart/form-data"}, produces = "application/json")
public ResponseEntity<?> add(@RequestPart(value = "image", required = true) MultipartFile image,
@RequestPart(value = "team", required = true) @Valid Team team, BindingResult bResult) {
}
答案 1 :(得分:0)
在角度5 HttpHeaders
中是不可变的。因此,您应该像这样使用它
let headers = new HttpHeaders({
'Content-Type': 'application/json',
'X-XSRF-TOKEN': token
});
或
let headers = new HttpHeaders();
headers = headers.append('Content-Type', 'application/json');
headers = headers.append('X-XSRF-TOKEN', token);
以这种方式设置标题,它应该可以解决您的问题。我已经放了示例代码来解释如何添加多个标头。如果您不需要,请不要'X-XSRF-TOKEN'
。
答案 2 :(得分:0)
我认为错误来自于您在发送普通/文本时要使用application / json的事实。 我在您的服务中解释说明
@RequestMapping(value = "", method = RequestMethod.POST, consumes = MediaType.APPLICATION_JSON_VALUE)
在前面的代码中发送普通/文本
return JSON.stringify(object);
只需删除JSON.stringify调用并返回json对象即可。
更改
body() {
const object = {
id: this.id,
name: this.name,
'num_execs': this.num_execs
};
return JSON.stringify(object);
}
到
body() {
const object = {
id: this.id,
name: this.name,
'num_execs': this.num_execs
};
return object;
}