不会吧不会吧,不会现在还有人不会整合redis和springboot吧!!!
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Redis——通过jedis操作和整合springboot
Jedis项目搭建
Jedis是Redis官方推荐的Java连接开发工具。要在Java开发中使用好Redis中间件,必须对Jedis熟悉才能
写成漂亮的代码
1、导入相关依赖
<dependencies>
<!--导入jedis包-->
<dependency>
<groupId>redis.clients</groupId>
<artifactId>jedis</artifactId>
<version>3.6.0</version>
</dependency>
<!--加群1025684353一起吹水聊天-->
<!--导入fastjson-->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>fastjson</artifactId>
<version>1.2.70</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-log4j12</artifactId>
<version>1.7.25</version>
</dependency>
</dependencies>
2、application.properties配置redis配置
# 应用名称
spring.application.name=redis_springboot
#Redis服务器地址
spring.redis.host=192.168.137.4
#Redis服务器连接端口
spring.redis.port=6379
#Redis数据库索引(默认为0)
# 加群1025684353一起吹水聊天-->
spring.redis.database= 0
#连接超时时间(毫秒)
spring.redis.timeout=1800000
#连接池最大连接数(使用负值表示没有限制)
spring.redis.lettuce.pool.max-active=20
#最大阻塞等待时间(负数表示没限制)
spring.redis.lettuce.pool.max-wait=-1
#连接池中的最大空闲连接
spring.redis.lettuce.pool.max-idle=5
#连接池中的最小空闲连接
spring.redis.lettuce.pool.min-idle=0
3、编写测试类测试是否ping成功
注意:必须要在配置文件取消本地和安全模式
package com.study;
import redis.clients.jedis.Jedis;
public class TestPing {
public static void main(String[] args) {
// 加群1025684353一起吹水聊天-->
//1.new Jedis对象
Jedis jedis = new Jedis("192.168.137.4",6379);
System.out.println(jedis.ping());
}
}
Jedis常用API
一、key操作
package com.study;
import redis.clients.jedis.Jedis;
public class TestKey {
public static void main(String[] args) {
Jedis jedis = new Jedis("192.168.137.4",6379);
//加群1025684353一起吹水聊天-->
System.out.println("清空数据:"+jedis.flushDB());
System.out.println("判断某个键是否存在:"+jedis.exists("username"));
System.out.println("新增<username,zhangsan>的键值对:"+jedis.set("username","zhangsan"));
System.out.println("新增<password,password>的键值对:"+jedis.set("password","password"));
System.out.println("查看所有的key:"+jedis.keys("*"));
System.out.println("删除key键password:"+jedis.del("password"));
System.out.println("判断key键password是否存在:"+jedis.exists("password"));
System.out.println("查看username所存储的值的类型:"+jedis.type("username"));
System.out.println("随机返回key空间的一个:"+jedis.randomKey());
System.out.println("重命名key:"+jedis.rename("username","name"));
System.out.println("取出改后的name:"+jedis.get("name"));
System.out.println("按索引切换数据库:"+jedis.select(0));
System.out.println("清空数据库:"+jedis.flushDB());
System.out.println("返回当前数据库中key的数目:"+jedis.dbSize());
System.out.println("清空所有数据库:"+jedis.flushAll());
}
}
二、string操作
package com.study;
import redis.clients.jedis.Jedis;
import java.util.concurrent.TimeUnit;
public class TestString {
public static void main(String[] args) {
Jedis jedis = new Jedis("192.168.137.4", 6379);
//加群1025684353一起吹水聊天-->
jedis.flushDB();
System.out.println("========添加数据=======");
System.out.println(jedis.set("key1","value1"));
System.out.println(jedis.set("key2","value2"));
System.out.println(jedis.set("key3","value3"));
System.out.println("删除键key2:"+jedis.del("key2"));
System.out.println("获取键key2:"+jedis.get("key2"));
System.out.println("修改key1:"+jedis.set("key1","value1Changed"));
System.out.println("获取key1的值:"+jedis.get("key1"));
System.out.println("添加多个键值对:"+jedis.mset("key01","value01","key02","value02","key03","value03"));
System.out.println("获取多个键值对:"+jedis.mget("key01","key02","key03"));
System.out.println("删除多个键值对:"+jedis.del("key01","key02"));
//加群1025684353一起吹水聊天-->
jedis.flushDB();
System.out.println("========新增键值对防止覆盖原先值========");
System.out.println(jedis.setnx("key1","value1"));
System.out.println(jedis.setnx("key2","value2"));
System.out.println(jedis.setnx("key2","value2-new"));
System.out.println("获取多个键值对的值"+jedis.mget("key1","key2"));
System.out.println("========新增键值对并设置有效时间==========");
System.out.println(jedis.setex("key3",2,"value3")); //有效时间为2秒
System.out.println(jedis.get("key3"));
try {
TimeUnit.SECONDS.sleep(3);
}catch (InterruptedException e){
e.printStackTrace();
}
System.out.println(jedis.get("key3"));
System.out.println("========获取原值,更新为新值=======");
System.out.println(jedis.getSet("key2","key2GetSet"));
System.out.println(jedis.get("key2"));
System.out.println("获得key2的值的字串:"+jedis.getrange("key2",2,4));
}
}
三、set操作
package com.study;
import redis.clients.jedis.Jedis;
public class TestSet {
public static void main(String[] args) {
Jedis jedis = new Jedis("192.168.137.4",6379);
jedis.flushDB();
//加群1025684353一起吹水聊天-->
System.out.println("============向集合中添加元素(不重复)============");
System.out.println(jedis.sadd("eleSet", "e1","e2","e4","e3","e0","e8","e7","e5"));
System.out.println(jedis.sadd("eleSet", "e6"));
System.out.println(jedis.sadd("eleSet", "e6"));
System.out.println("eleSet的所有元素为:"+jedis.smembers("eleSet"));
System.out.println("删除一个元素e0:"+jedis.srem("eleSet", "e0"));
System.out.println("eleSet的所有元素为:"+jedis.smembers("eleSet"));
System.out.println("删除两个元素e7和e6:"+jedis.srem("eleSet", "e7","e6"));
System.out.println("eleSet的所有元素为:"+jedis.smembers("eleSet"));
System.out.println("随机的移除集合中的一个元素:"+jedis.spop("eleSet"));
System.out.println("随机的移除集合中的一个元素:"+jedis.spop("eleSet"));
System.out.println("eleSet的所有元素为:"+jedis.smembers("eleSet"));
System.out.println("eleSet中包含元素的个数:"+jedis.scard("eleSet"));
System.out.println("e3是否在eleSet中:"+jedis.sismember("eleSet", "e3"));
System.out.println("e1是否在eleSet中:"+jedis.sismember("eleSet", "e1"));
System.out.println("e1是否在eleSet中:"+jedis.sismember("eleSet", "e5"));
System.out.println("=================================");
System.out.println(jedis.sadd("eleSet1", "e1","e2","e4","e3","e0","e8","e7","e5"));
System.out.println(jedis.sadd("eleSet2", "e1","e2","e4","e3","e0","e8"));
System.out.println("将eleSet1中删除e1并存入eleSet3 中:"+jedis.smove("eleSet1", "eleSet3", "e1"));//移到集合元素
System.out.println("将eleSet1中删除e2并存入eleSet3 中:"+jedis.smove("eleSet1", "eleSet3", "e2"));
System.out.println("eleSet1中的元素:"+jedis.smembers("eleSet1"));
System.out.println("eleSet3中的元素:"+jedis.smembers("eleSet3"));
System.out.println("============集合运算=================");
System.out.println("eleSet1中的元素:"+jedis.smembers("eleSet1"));
System.out.println("eleSet2中的元素:"+jedis.smembers("eleSet2"));
System.out.println("eleSet1和eleSet2的交 集:"+jedis.sinter("eleSet1","eleSet2"));
System.out.println("eleSet1和eleSet2的并 集:"+jedis.sunion("eleSet1","eleSet2"));
System.out.println("eleSet1和eleSet2的差 集:"+jedis.sdiff("eleSet1","eleSet2"));//eleSet1中有,eleSet2中没有
jedis.sinterstore("eleSet4","eleSet1","eleSet2");//求交集并将交集保存到dstkey的集合
System.out.println("eleSet4中的元素:"+jedis.smembers("eleSet4"));
}
}
四、List操作
package com.study;
import redis.clients.jedis.Jedis;
public class TestList {
public static void main(String[] args) {
Jedis jedis = new Jedis("192.168.137.4", 6379);
jedis.flushDB();
//加群1025684353一起吹水聊天-->
System.out.println("==========以上是关于不会吧不会吧,不会现在还有人不会整合redis和springboot吧!!!的主要内容,如果未能解决你的问题,请参考以下文章