Java中使用Jedis连接Redis对String进行操作的常用命令

た入场券 2023-10-07 11:16 30阅读 0赞

## 场景 ##

Centos中Redis的下载编译与安装(超详细)：

[https://blog.csdn.net/BADAO\_LIUMANG\_QIZHI/article/details/103967334][https_blog.csdn.net_BADAO_LIUMANG_QIZHI_article_details_103967334]

Redis的启动和关闭(前台启动和后台启动)：

[https://blog.csdn.net/BADAO\_LIUMANG\_QIZHI/article/details/103972348][https_blog.csdn.net_BADAO_LIUMANG_QIZHI_article_details_103972348]

RedisDesktopManager客户端可视化工具下载安装与使用：

[https://blog.csdn.net/BADAO\_LIUMANG\_QIZHI/article/details/103983147][https_blog.csdn.net_BADAO_LIUMANG_QIZHI_article_details_103983147]

Java中使用Jedis连接Redis对Key进行操作的常用命令：

[https://blog.csdn.net/BADAO\_LIUMANG\_QIZHI/article/details/104915569][https_blog.csdn.net_BADAO_LIUMANG_QIZHI_article_details_104915569]

参考上面对Key进行操作的命令后，下面是对String进行常用操作。

注：

博客：  
[https://blog.csdn.net/badao\_liumang\_qizhi][https_blog.csdn.net_badao_liumang_qizhi]  
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## 实现 ##

新建Junit方法TestString，然后依次打开以下注释代码

@Test
        public void TestString()
        {
            //System.out.println("增加数据key1-value1"+jedis.set("key1","value1"));
            //System.out.println("增加数据key2-value2"+jedis.set("key2","value2"));
            //System.out.println("增加数据key3-value3" + jedis.set("key3", "value3"));
            //System.out.println("删除数据key3"+jedis.del("key3"));
            //System.out.println("获取数据key2"+jedis.get("key2"));
            //System.out.println("在key2后面追加值"+jedis.append("key2","append"));
            //System.out.println("在key2后面追加值"+jedis.append("key2","append"));
            //System.out.println("增加多个键值：" + jedis.mset("key01", "value01", "key02", "value02", "key03", "value03"));
            //System.out.println("获取多个键值：" + jedis.mget("key01", "key02", "key03"));
            //System.out.println("删除多个键值："+jedis.del("key02","key03"));
    
            //新增键值对防止覆盖原先值
            //输出1
            //System.out.println(jedis.setnx("key4","badao"));
            //输出0
            //System.out.println(jedis.setnx("key4","liumang"));
            //输出badao
            //System.out.println(jedis.get("key4"));
    
            //新增键值对并设置有效时间--5秒
            //System.out.println(jedis.setex("key5",5,"liumang"));
    
            //获取原值并更新为新值
            System.out.println(jedis.getSet("key4","key4getset"));
            System.out.println(jedis.get("key4"));
        }

[https_blog.csdn.net_BADAO_LIUMANG_QIZHI_article_details_103967334]: https://blog.csdn.net/BADAO_LIUMANG_QIZHI/article/details/103967334
[https_blog.csdn.net_BADAO_LIUMANG_QIZHI_article_details_103972348]: https://blog.csdn.net/BADAO_LIUMANG_QIZHI/article/details/103972348
[https_blog.csdn.net_BADAO_LIUMANG_QIZHI_article_details_103983147]: https://blog.csdn.net/BADAO_LIUMANG_QIZHI/article/details/103983147
[https_blog.csdn.net_BADAO_LIUMANG_QIZHI_article_details_104915569]: https://blog.csdn.net/BADAO_LIUMANG_QIZHI/article/details/104915569
[https_blog.csdn.net_badao_liumang_qizhi]: https://blog.csdn.net/badao_liumang_qizhi