java - Spring 更改格式时间戳异常

Question

我使用 spring 和 @ResponseStatus 来抛出这样的异常:

@ResponseStatus(value = HttpStatus.NOT_FOUND, reason = "Unknown task") 
public class TaskNotFoundException extends RuntimeException {

    private static final long serialVersionUID = 1L;

    private long taskId;

    public TaskNotFoundException(long taskId) {
        this.taskId = taskId;
    }

    public long getTaskId() {
        return taskId;
    }
}

我得到这样的回应:

{
   "timestamp": 1467278537988,
   "status": 404,
   "error": "Not Found",
   "exception": "com.TaskNotFoundException",
   "message": "Unknown Task"
}

我想知道如何更改时间戳格式以获得 ISO 8601 格式。感谢您的帮助

Answer 1

您可以使用@ExceptionHandler和@ResponseBody自定义错误响应。例如:

@ExceptionHandler(TaskNotFoundException.class)
@ResponseBody
@ResponseStatus(value = HttpStatus.NOT_FOUND)
private Message handleMessage(TaskNotFoundException e) {
    Message message = new Message();
    message.setTimestamp(ZonedDateTime.now().format(DateTimeFormatter.ISO_INSTANT));
    message.setError("Not Found");
    message.setStatus(404);
    message.setException("com.TaskNotFoundException");
    message.setMessage("Unknown Task");
    return message;
}

Message 是一个简单的 POJO，用于保存错误响应正文。

public class Message {

    private long timestamp;
    private String error;
    private int status;
    private String exception;
    private String message;

    // getters and setters

}

对于基于 Controller 的异常处理，您可以向任何 Controller 添加额外的@ExceptionHandler方法来专门处理异常:

@Controller
class ExceptionHandlingController {

    @ExceptionHandler(TaskNotFoundException.class)
    @ResponseBody
    @ResponseStatus(value = HttpStatus.NOT_FOUND)
    private Message handleMessage(TaskNotFoundException e) {
       ...
    }

}

对于全局异常处理，可以使用@ControllerAdvice:

@ControllerAdvice
class GlobalControllerExceptionHandler {

    @ExceptionHandler(TaskNotFoundException.class)
    @ResponseBody
    @ResponseStatus(value = HttpStatus.NOT_FOUND)
    private Message handleMessage(TaskNotFoundException e) {
       ...
    }

}

更多详情请查看https://spring.io/blog/2013/11/01/exception-handling-in-spring-mvc