@Valid实体类中注解的异常抛出处理（附:常用注解）

实体类中的写法

    /**
     * 手机号
     */
    @NotNull(message = "手机号不能为空")
    @Pattern(regexp = "^[1][3,4,5,6,7,8,9][0-9]{9}$", message = "手机号格式有误")
    String phone;

异常处理的类

@ControllerAdvice
@ResponseBody
public class GlobleExceptionHandler {
    /**
     * 要拦截的异常Exception
     */
    @ExceptionHandler(value = {BindException.class, ValidationException.class, MethodArgumentNotValidException.class})
    public ResponseEntity<Result<?>> handleValidatedException(Exception e) {
        Result<?> resp = null;

        if (e instanceof MethodArgumentNotValidException) {
            // BeanValidation exception
            MethodArgumentNotValidException ex = (MethodArgumentNotValidException) e;
            resp =	Result.error(500, ex.getBindingResult().getAllErrors().stream()
                    .map(ObjectError::getDefaultMessage)
                    .collect(Collectors.joining("; "))
            );
        } else if (e instanceof ConstraintViolationException) {
            // BeanValidation GET simple param
            ConstraintViolationException ex = (ConstraintViolationException) e;
            resp = Result.error(500,
                    ex.getConstraintViolations().stream()
                            .map(ConstraintViolation::getMessage)
                            .collect(Collectors.joining("; "))
            );
        } else if (e instanceof BindException) {
            // BeanValidation GET object param
            BindException ex = (BindException) e;
            resp = Result.error(500,
                    ex.getAllErrors().stream()
                            .map(ObjectError::getDefaultMessage)
                            .collect(Collectors.joining("; "))
            );
        }

        return new ResponseEntity<>(resp,HttpStatus.INTERNAL_SERVER_ERROR);
    }
}

引入的import

import com.goldshell.common.api.vo.Result;
import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;
import org.springframework.validation.BindException;
import org.springframework.validation.ObjectError;
import org.springframework.web.bind.MethodArgumentNotValidException;
import org.springframework.web.bind.annotation.ControllerAdvice;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.ResponseBody;

import javax.validation.ConstraintViolation;
import javax.validation.ConstraintViolationException;
import javax.xml.bind.ValidationException;
import java.util.stream.Collectors;

因为异常有可能走到
MethodArgumentNotValidException
ConstraintViolationException
BindException
这三个其中的任意一个
最后返回前端的值是
INTERNAL_SERVER_ERROR(500, “Internal Server Error”),