1.自定义异常类
import lombok.Data; @Data
public class UserException extends RuntimeException {
private Long id; public UserException(Long id) {
super("user not exist");
this.id = id;
} public UserException(String message, Long id) {
super(message);
this.id = id;
}
}
自定义异常类
2.编写异常处理handler
import java.util.HashMap;
import java.util.Map; @ControllerAdvice
public class ControllerExceptionHandler {
@ExceptionHandler(UserException.class)
@ResponseBody
@ResponseStatus(HttpStatus.INTERNAL_SERVER_ERROR)
public Map<String,Object> handlerUserNotExistException(UserException ex){
Map<String,Object> result=new HashMap<>();
result.put("id",ex.getId());
result.put("message",ex.getMessage());
return result;
}
}
异常处理handler
3.使用过程