springboot中异常自定义实现

我就是我 2022-03-17 09:18 206阅读 0赞

[个人博客][Link 1]

在项目中，通常需要自己定义一些异常，以便更好的来管理我们的业务。通常来说，需要有一个我们自己的异常抽象，一个通用的异常类，以及一些特定条件下的异常类。如下所示：

![sb-exception][]

## 自定义异常抽象 ##

package com.lazycece.sbac.exception.exception;
    
    /** * @author lazycece * @date 2019/02/23 */
    public abstract class AbstractGlobalException extends RuntimeException { 
        public AbstractGlobalException() { 
        }
    
        public AbstractGlobalException(String message) { 
            super(message);
        }
    
        public AbstractGlobalException(String message, Throwable cause) { 
            super(message, cause);
        }
    
        public AbstractGlobalException(Throwable cause) { 
            super(cause);
        }
    
        /** * global-custom-exception's code * * @return int */
        abstract public int getCode();
    }

## 自定义通用异常 ##

package com.lazycece.sbac.exception.exception;
    
    /** * @author lazycece */
    public class GlobalException extends AbstractGlobalException { 
    
        private Integer code;
    
        public GlobalException(String message, Integer code) { 
            super(message);
            this.code = code;
        }
    
        public GlobalException(String message, Throwable cause, Integer code) { 
            super(message, cause);
            this.code = code;
        }
    
        public GlobalException(Throwable cause, Integer code) { 
            super(cause);
            this.code = code;
        }
    
        @Override
        public int getCode() { 
            return this.code;
        }
    }

## 特定域异常 ##

特定域方面的异常通常随着业务的情况分为不同的类，这里以在业务层的参数校验的异常为例，代码如下：

package com.lazycece.sbac.exception.exception;
    
    
    import com.lazycece.sbac.exception.response.ResCode;
    
    /** * @author lazycece */
    public class ParamException extends AbstractGlobalException { 
        public ParamException() { 
        }
    
        public ParamException(String message) { 
            super(message);
        }
    
        public ParamException(String message, Throwable cause) { 
            super(message, cause);
        }
    
        @Override
        public int getCode() { 
            return ResCode.PARAM_ERROR;
        }
    }

## 案例源码 ##

案例源码地址：[https://github.com/lazycece/springboot-actual-combat/tree/master/springboot-ac-exception][https_github.com_lazycece_springboot-actual-combat_tree_master_springboot-ac-exception]

[Link 1]: https://lazycece.github.io/2019/02/23/springboot%E4%B8%AD%E5%BC%82%E5%B8%B8%E8%87%AA%E5%AE%9A%E4%B9%89%E5%AE%9E%E7%8E%B0/
[sb-exception]: /images/20220317/fc2a41ef9bc1409f82a473aa52aee38c.png
[https_github.com_lazycece_springboot-actual-combat_tree_master_springboot-ac-exception]: https://github.com/lazycece/springboot-actual-combat/tree/master/springboot-ac-exception