自定义异常类的使用

自定义异常类

package com.cy.pj.common.exception;
/**自定义业务异常*/
public class ServiceException extends RuntimeException{
    
    private static final long serialVersionUID = -5598865415547474216L;

    public ServiceException() {
    
    }

    public ServiceException(String message) {
    
        super(message);
    }

    public ServiceException(String message, Throwable cause) {
    
        super(message, cause);
    }

    public ServiceException(Throwable cause) {
    
        super(cause);
    }

    public ServiceException(String message, Throwable cause, boolean enableSuppression, boolean writableStackTrace) {
    
        super(message, cause, enableSuppression, writableStackTrace);
    }
    //UnKnownAccountException
    //
}

自定义异常类在serviceimpl中的使用

@Override
    public int updateObject(SysRole entity, Integer[] menuIds) {
    
        if (entity==null)
            throw new IllegalArgumentException("保存对象不能为空");
        if (StringUtils.isEmpty(entity.getName()))
            throw new IllegalArgumentException("角色名不能为空");
        if (menuIds==null||menuIds.length==0)
            throw new ServiceException("必须为角色分配权限");
        int rows = sysRoleDao.updateObject(entity);
        if (rows==0)
            throw new ServiceException("记录可能已经不存在");
        sysRoleMenuDao.deleteObjectsByRoleId(entity.getId());
        sysRoleMenuDao.insertObjects(entity.getId(), menuIds);
        return rows;
    }