springboot全局自定义异常

1.自定义异常

package com.xxx.dzwz.util.exception;

/**

• 自定义异常
• @date 2024-01-19 10:00:00

• @author wangwei
  */
  public class CustomException extends RuntimeException {
  private static final long serialVersionUID = 1L;

  private Integer code;

  private String message;

  public CustomException(String message) {
  this.message = message;
  }

  public CustomException(String message, Integer code) {
  this.message = message;
  this.code = code;
  }

  public CustomException(String message, Throwable e) {
  super(message, e);
  this.message = message;
  }

  @Override
  public String getMessage() {
  return message;
  }

  public Integer getCode() {
  return code;
  }

}
2.业务异常
package com.xxx.dzwz.util.exception;

/**

• 业务异常

• @author wangwei
  */
  public final class ServiceException extends RuntimeException
  {
  private static final long serialVersionUID = 1L;

  /**

  • 错误码
    */
    private Integer code;

    /**

  • 错误提示
    */
    private String message;

    /**

  • 错误明细，内部调试错误
    *

  • 和 {@link CommonResult#getDetailMessage()} 一致的设计
    */
    private String detailMessage;

    /**

  • 空构造方法，避免反序列化问题
    */
    public ServiceException()
    {
    }

    public ServiceException(String message)
    {
    this.message = message;
    }

    public ServiceException(String message, Integer code)
    {
    this.message = message;
    this.code = code;
    }

    public String getDetailMessage()
    {
    return detailMessage;
    }

    @Override
    public String getMessage()
    {
    return message;
    }

    public Integer getCode()
    {
    return code;
    }

    public com.cmrx.dzwz.util.exception.ServiceException setMessage(String message)
    {
    this.message = message;
    return this;
    }

    public com.cmrx.dzwz.util.exception.ServiceException setDetailMessage(String detailMessage)
    {
    this.detailMessage = detailMessage;
    return this;
    }
    }

3.全局异常处理器
package com.xxx.dzwz.util.exception;
import com.xxx.dzwz.util.AjaxResult;
import com.xxx.dzwz.util.StringUtils;
import com.xxx.dzwz.util.pageutil.HttpStatus;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.validation.BindException;
import org.springframework.web.HttpRequestMethodNotSupportedException;
import org.springframework.web.bind.MethodArgumentNotValidException;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.RestControllerAdvice;
import javax.servlet.http.HttpServletRequest;
import java.nio.file.AccessDeniedException;

/**

• 全局异常处理器
• • @date 2024-01-30 09:46:00

• @author wangwei
  */
  @RestControllerAdvice
  public class GlobalExceptionHandler
  {
  private static final Logger log = LoggerFactory.getLogger(com.cmrx.dzwz.util.exception.GlobalExceptionHandler.class);

  /**

  • 权限校验异常
    */
    @ExceptionHandler(AccessDeniedException.class)
    public AjaxResult handleAccessDeniedException(AccessDeniedException e, HttpServletRequest request)
    {
    String requestURI = request.getRequestURI();
    log.error("请求地址'{}',权限校验失败'{}'", requestURI, e.getMessage());
    return AjaxResult.error(HttpStatus.FORBIDDEN, "没有权限，请联系管理员授权");
    }

    /**

  • 请求方式不支持
    */
    @ExceptionHandler(HttpRequestMethodNotSupportedException.class)
    public AjaxResult handleHttpRequestMethodNotSupported(HttpRequestMethodNotSupportedException e,

                                                   HttpServletRequest request)
    

    {
    String requestURI = request.getRequestURI();
    log.error("请求地址'{}',不支持'{}'请求", requestURI, e.getMethod());
    return AjaxResult.error(e.getMessage());
    }

    /**

  • 业务异常
    */
    @ExceptionHandler(ServiceException.class)
    public AjaxResult handleServiceException(ServiceException e, HttpServletRequest request)
    {
    log.error(e.getMessage(), e);
    Integer code = e.getCode();
    return StringUtils.isNotNull(code) ? AjaxResult.error(code, e.getMessage()) : AjaxResult.error(e.getMessage());
    }

    /**

  • 拦截未知的运行时异常
    */
    @ExceptionHandler(RuntimeException.class)
    public AjaxResult handleRuntimeException(RuntimeException e, HttpServletRequest request)
    {
    String requestURI = request.getRequestURI();
    log.error("请求地址'{}',发生未知异常.", requestURI, e);
    return AjaxResult.error(e.getMessage());
    }

    /**

  • 系统异常
    */
    @ExceptionHandler(Exception.class)
    public AjaxResult handleException(Exception e, HttpServletRequest request)
    {
    String requestURI = request.getRequestURI();
    log.error("请求地址'{}',发生系统异常.", requestURI, e);
    return AjaxResult.error(e.getMessage());
    }

    /**

  • 自定义验证异常
    */
    @ExceptionHandler(BindException.class)
    public AjaxResult handleBindException(BindException e)
    {
    log.error(e.getMessage(), e);
    String message = e.getAllErrors().get(0).getDefaultMessage();
    return AjaxResult.error(message);
    }

    /**

  • 自定义验证异常
    */
    @ExceptionHandler(MethodArgumentNotValidException.class)
    public Object handleMethodArgumentNotValidException(MethodArgumentNotValidException e)
    {
    log.error(e.getMessage(), e);
    String message = e.getBindingResult().getFieldError().getDefaultMessage();
    return AjaxResult.error(message);
    }

    /**

  • 演示模式异常
    /
    / @ExceptionHandler(DemoModeException.class)
    public AjaxResult handleDemoModeException(DemoModeException e)
    {
    return AjaxResult.error("演示模式，不允许操作");
    }*/
    }