StringRedisTemplate简单操作redis
效果图
效果图
效果图
完整pom
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.java</groupId>
<artifactId>redis-service</artifactId>
<version>1.0-SNAPSHOT</version>
<properties>
<maven.compiler.source>8</maven.compiler.source>
<maven.compiler.target>8</maven.compiler.target>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<!-- 继承 Spring Boot 父 POM，管理 Spring Boot 依赖版本 -->
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.7.18</version>
<relativePath/> <!-- 从仓库查找父 POM -->
</parent>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-redis</artifactId>
</dependency>
<!--lombok依赖-->
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<version>1.18.16</version>
</dependency>
<!--引入junit单元测试依赖-->
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.12</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
</project>
代码部分
package com.java;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
@SpringBootApplication
public class Main {
public static void main(String[] args) {
SpringApplication.run(Main.class,args);
}
}
package com.java;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.StringRedisTemplate;
import org.springframework.stereotype.Service;
import java.util.Set;
import java.util.concurrent.TimeUnit;
/**
* @Description:
* @Author: tutu-qiuxie
* @Create: 2026/2/4 0:43
*/
@Service
public class RedisAdminService {
@Autowired
private StringRedisTemplate redisTemplate;
/** 查询 key */
public Set<String> keys(String pattern) {
return redisTemplate.keys(pattern);
}
/** 获取值 */
public String get(String key) {
return redisTemplate.opsForValue().get(key);
}
/** 设置值 */
public void set(String key, String value, long seconds) {
redisTemplate.opsForValue().set(key, value, seconds, TimeUnit.SECONDS);
}
/** 删除 */
public void delete(String key) {
redisTemplate.delete(key);
}
/** TTL */
public Long ttl(String key) {
return redisTemplate.getExpire(key, TimeUnit.SECONDS);
}
}
package com.java;
import lombok.extern.slf4j.Slf4j;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.data.redis.core.StringRedisTemplate;
import org.springframework.test.context.junit4.SpringRunner;
import java.util.concurrent.TimeUnit;
/**
* @Description:
* @Author: tutu-qiuxie
* @Create: 2026/2/4 0:29
*/
@RunWith(SpringRunner.class)
@SpringBootTest
@Slf4j
public class RedisTest {
@Autowired
private StringRedisTemplate stringRedisTemplate;
@Test
public void test001(){
//set / get
// stringRedisTemplate.opsForValue()
// .set("test:key", "hello", 60, TimeUnit.SECONDS);
//
// String value = stringRedisTemplate.opsForValue().get("test:key");
// System.out.println("value = " + value);
// Boolean exists = stringRedisTemplate.hasKey("test:key");
// System.out.println("exists = " + exists);
// if (exists){
// stringRedisTemplate.delete("test:key");
//
// }
//设置过期时间
// stringRedisTemplate.expire("test:key", 20, TimeUnit.MINUTES);
//查看剩余 TTL
Long ttl = stringRedisTemplate.getExpire("test:key", TimeUnit.SECONDS);
System.out.println("ttl = " + ttl);
}
}
配置文件
spring.redis.host=192.168.31.60 spring.redis.port=6379 spring.redis.password= spring.redis.database=0 spring.redis.timeout=3000
package com.java;
import lombok.extern.slf4j.Slf4j;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.data.redis.core.StringRedisTemplate;
import org.springframework.test.context.junit4.SpringRunner;
/**
* @Description:
* @Author: tutu-qiuxie
* @Create: 2026/2/4 0:58
*/
@RunWith(SpringRunner.class)
@SpringBootTest
@Slf4j
public class RedisUpTest {
@Autowired
private StringRedisTemplate stringRedisTemplate;
@Test
public void test002(){
//自增 / 自减（限流、计数神器）
// Long count = stringRedisTemplate.opsForValue()
// .increment("login:count:user:1");
// System.out.println("count = " + count);
//
// Long increment = stringRedisTemplate.opsForValue()
// .increment("money:balance", -10);
// System.out.println("increment = " + increment);
//Hash 存 / 取字段
// stringRedisTemplate.opsForHash()
// .put("user:1", "name", "zhangsan");
//
// Object name = stringRedisTemplate.opsForHash()
// .get("user:1", "name");
// System.out.println("name = " + name);
//左进右出（队列）
// stringRedisTemplate.opsForList()
// .leftPush("video:transcode:queue", "videoId=123");
// stringRedisTemplate.opsForList()
// .leftPush("video:transcode:queue", "videoId=1231");
// stringRedisTemplate.opsForList()
// .leftPush("video:transcode:queue", "videoId=1232");
//
//
//
// String task;
// while ((task = stringRedisTemplate.opsForList().rightPop("video:transcode:queue")) != null) {
// try {
// Thread.sleep(1000);
// log.info("Processing task:{} ",task);
// } catch (InterruptedException e) {
// throw new RuntimeException(e);
// }
// }
// System.out.println("All tasks processed.");
//Set（去重 / 关系）
// stringRedisTemplate.opsForSet()
// .add("video:likes:100", "user1", "user2");
//
// Boolean liked = stringRedisTemplate.opsForSet()
// .isMember("video:likes:100", "user1");
// System.out.println("liked = " + liked);
//
// Boolean likes = stringRedisTemplate.opsForSet()
// .isMember("video:likes:100", "user2");
// System.out.println("likes = " + likes);
//统计数量
Long count = stringRedisTemplate.opsForSet()
.size("video:likes:100");
System.out.println("count = " + count);
}
}
浙公网安备 33010602011771号