Nuestro manejo global de excepciones generalmente captura las excepciones en la capa del controlador.
Anotaciones principales:
(1) @RestControllerAdvice: utilizado para la captura de excepciones en la capa del controlador
(2) @ResponseStatus(value=,reason=): el atributo de valor establece el código de estado de la excepción , Reasonon Es la descripción de la excepción.
(3) @ExceptionHandler(value=): El valor value representa el tipo de excepción.
package com.komorebi.common;
import lombok.extern.slf4j.Slf4j;
import org.springframework.http.HttpStatus;
import org.springframework.validation.BindingResult;
import org.springframework.validation.ObjectError;
import org.springframework.web.bind.MethodArgumentNotValidException;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.ResponseStatus;
import org.springframework.web.bind.annotation.RestControllerAdvice;
import java.nio.file.AccessDeniedException;
@Slf4j
@RestControllerAdvice//用于controller层异常捕获
public class GlobalException {
@ResponseStatus(HttpStatus.FORBIDDEN)
//value值表示异常类别
@ExceptionHandler(value = AccessDeniedException.class)
public Result handler(AccessDeniedException e) {
log.info("security权限不足:----------------{}", e.getMessage());
return Result.fail("权限不足");
}
@ResponseStatus(HttpStatus.BAD_REQUEST)
@ExceptionHandler(value = MethodArgumentNotValidException.class)
public Result handler(MethodArgumentNotValidException e) {
log.info("实体校验异常:----------------{}", e.getMessage());
BindingResult bindingResult = e.getBindingResult();
ObjectError objectError = bindingResult.getAllErrors().stream().findFirst().get();
return Result.fail(objectError.getDefaultMessage());
}
@ResponseStatus(HttpStatus.BAD_REQUEST)
@ExceptionHandler(value = IllegalArgumentException.class)
public Result handler(IllegalArgumentException e) {
log.error("Assert异常:----------------{}", e.getMessage());
return Result.fail(e.getMessage());
}
@ResponseStatus(HttpStatus.BAD_REQUEST)
@ExceptionHandler(value = RuntimeException.class)
public Result handler(RuntimeException e) {
log.error("运行时异常:----------------{}", e.getMessage());
return Result.fail(e.getMessage());
}
}