idworker-client 全局主键生成策略

朱雀 2021-03-12 14:17 618阅读 0赞

在数据库主键不是自增的情况下，可以使用全局主键自增策略，这是一种比较简单的方式：

<dependency>
    			<groupId>com.github.bingoohuang</groupId>
    			<artifactId>idworker-client</artifactId>
    			<version>0.0.8</version>
    		</dependency>

使用起来非常简单：

package com.gdd.videos.service.impl;
    
    import com.gdd.videos.common.MD5Utils;
    import com.gdd.videos.mapper.UserMapper;
    import com.gdd.videos.pojo.User;
    import com.gdd.videos.pojo.UserExample;
    import com.gdd.videos.service.UserService;
    import org.n3r.idworker.Sid;
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.stereotype.Service;
    import org.springframework.transaction.annotation.Propagation;
    import org.springframework.transaction.annotation.Transactional;
    
    import java.security.NoSuchAlgorithmException;
    import java.util.List;
    
    /**
     * @author zhangh     
     * @version V1.0.0
     * @projectName parent
     * @title     UserServiceImpl   
     * @package    com.gdd.videos.service.impl  
     * @date   2019/9/3 16:19  
     * @explain 用户服务层实现类
     */
    @Service
    public class UserServiceImpl implements UserService {
    
        @Autowired
        private UserMapper userMapper;
    
        private Sid sid;
        
        /**
         * 存储用户信息
         * @param user
         */
        @Transactional(propagation = Propagation.REQUIRED)
        public void saveUser(User user){
            try {
                // 封装id
                user.setId(sid.nextShort());
    
                // 加密密码
    
                // 存储用户信息
                int i = userMapper.insertSelective(user);
            } catch (Exception e) {
                e.printStackTrace();
            }
        }
    
    }