获取HTTP状态406 -尝试在Spring REST控制器中返回对象时出现不可接受的错误
获取HTTP状态406 -尝试在Spring REST控制器中返回对象时出现不可接受的错误
提问于 2020-10-07 19:44:44
在这里，我试图更新一个对象，并在Spring REST控制器中以JSON格式返回更新后的对象。
控制器：
@RequestMapping(value = "/user/revert", method = RequestMethod.POST)
@Produces(javax.ws.rs.core.MediaType.APPLICATION_JSON)
public ResponseEntity<UserResponse> revertUserData(@RequestParam(value = "userName") String userName) {
User user = new User();
UserResponse userResponse = new UserResponse();
try {
user = userService.findUserByName(userName);
user.setLastName(null);
userResponse.setEmail(user.getEmail());
userResponse.setLastName(user.getLastName());
} catch (Exception e) {
return new ResponseEntity<UserResponse>(userResponse, HttpStatus.INTERNAL_SERVER_ERROR);
}
return new ResponseEntity<UserResponse>(userResponse, HttpStatus.OK);
}UserResponse类：
@JsonInclude(JsonInclude.Include.NON_NULL)
public class UserResponse {
@JsonProperty("email")
private String email;
@JsonProperty("lastName")
private String lastName;
//getter and setter methids
}pom文件：
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>2.4.1</version>
</dependency>我得到的错误是：
The target resource does not have a current representation that would be acceptable to the
user agent, according to the proactive negotiation header fields received in the request, and the server is
unwilling to supply a default representation.回答 1
Stack Overflow用户
发布于 2020-10-08 00:19:08
您混合了JAX-RS和Spring MVC注释：@RequestMapping来自Spring，@Produces来自JAX-RS。如果你看一下@RequestMapping的documentation，你会看到它有一个produces参数，所以你应该有类似这样的东西：
@RequestMapping(value = "/user/revert", method = RequestMethod.POST, produces = MediaType.APPLICATION_JSON)
public ResponseEntity<UserResponse> revertUserData(@RequestParam(value = "userName") String userName){
...
}页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/64243320
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