SpringBoot整合Redis（五）

1. 引入Redis依赖

<parent>
    <artifactId>spring-boot-dependencies</artifactId>
    <groupId>org.springframework.boot</groupId>
    <version>2.3.5.RELEASE</version>
</parent>
<dependencies>
    <!-- Redis依赖 -->
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-data-redis</artifactId>
    </dependency>
    <!-- 测试包 -->
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-test</artifactId>
    </dependency>
    <dependency>
        <groupId>junit</groupId>
        <artifactId>junit</artifactId>
        <version>4.12</version>
        <scope>test</scope>
    </dependency>
</dependencies>

2. 配置Redis连接信息

在application.yaml配置文件中配置：

spring:
  redis:
    host: localhost
    port: 6379
    password: password
    timeout: 6000          #超时时间
    database: 0            #第一个数据库，0-15

3. 配置启动类

@SpringBootApplication
public class App {
    public static void main(String[] args) {
        SpringApplication.run(App.class, args);
    }
}

4. 使用RedisTemplate工具类操作Redis

springboot中使用RedisTemplate来操作redis，需要在我们的bean中注入这个对象，代码如下：

@Autowired
private RedisTemplate<String, String> redisTemplate;

// 用下面5个对象来操作对应的类型
this.redisTemplate.opsForValue(); //提供了操作string类型的所有方法
this.redisTemplate.opsForList();  // 提供了操作list类型的所有方法
this.redisTemplate.opsForSet();   //提供了操作set的所有方法
this.redisTemplate.opsForHash();  //提供了操作hash表的所有方法
this.redisTemplate.opsForZSet();  //提供了操作zset的所有方法

5.RedisTemplate操作Demo

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.RedisTemplate;
import org.springframework.test.context.junit4.SpringRunner;

import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Set;

/**
 * SpringBoot集成Redis，测试常用操作命令
 * @author xiaoyuge 
 */
@SpringBootTest(classes = App.class)
@RunWith(SpringRunner.class)
public class RedisTemplateTest {

    @Autowired
    private RedisTemplate<String, String> redisTemplate;

    @Test
    public void stringTest() {
        //删除key
        this.redisTemplate.delete("name");
        //设置值
        this.redisTemplate.opsForValue().set("name", "xiaoyuge");
        //获取值
        String name = this.redisTemplate.opsForValue().get("name");
        System.out.println(name);
    }

    @Test
    public void listTest() {
        this.redisTemplate.delete("names");
        this.redisTemplate.opsForList().rightPushAll("names", "tom", "chelly", "xiaoyuge", "fan");
        List<String> list = this.redisTemplate.opsForList().range("names", 0, -1);
        list.forEach(System.out::println);
    }

    @Test
    public void setTest() {
        this.redisTemplate.opsForSet().add("courses", "java", "php", "node", "js");
        //获取set集合中的值
        Set<String> courseSet = this.redisTemplate.opsForSet().members("courses");
        courseSet.forEach(System.out::println);
    }

    @Test
    public void hashTest() {
        Map<String, String> map = new HashMap<String, String>() {{
            put("name", "xiaoyuge");
            put("age", "18");
        }};
        this.redisTemplate.opsForHash().putAll("userMap", map);

        //获取值
        Map<Object, Object> resultMap = this.redisTemplate.opsForHash().entries("userMap");
        System.out.println(resultMap);
    }

    @Test
    public void zsetTest() {
        this.redisTemplate.delete("mv");
        this.redisTemplate.opsForZSet().add("mv", "赵丽颖", 960d);
        this.redisTemplate.opsForZSet().add("mv", "袁冰妍", 98d);
        this.redisTemplate.opsForZSet().add("mv", "刘亦菲", 100d);
        this.redisTemplate.opsForZSet().add("mv", "杨超越", 80d);

        //获取全部的属性值
        Set<String> mvs = this.redisTemplate.opsForZSet().range("mv", 0, -1);
        mvs.forEach(System.out::println);
    }
}