SpringBoot整合Redis和Redision锁

参考文章

1.Redis

1.导入依赖

        <!--Redis依赖-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-redis</artifactId>
        </dependency>
        <dependency>
            <groupId>org.apache.commons</groupId>
            <artifactId>commons-pool2</artifactId>
        </dependency>

2.配置里面加入redis相关

spring:
  data:
    redis:
      # 连接地址
      host: 192.168.101.128
      # 端口
      port: 6379
      # 数据库
      database: 0
      # 用户名，如果有
      # username:
      # 密码，如果有
      password: 123456
      # 连接超时
      connect-timeout: 5s
      # 读超时
      timeout: 5s

3.写相关配置类

package com.example.springbootdemo3.config;

import org.apache.commons.pool2.impl.GenericObjectPoolConfig;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.connection.RedisConnectionFactory;
import org.springframework.data.redis.connection.RedisStandaloneConfiguration;
import org.springframework.data.redis.connection.lettuce.LettuceConnectionFactory;
import org.springframework.data.redis.connection.lettuce.LettucePoolingClientConfiguration;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.serializer.GenericToStringSerializer;
import org.springframework.data.redis.serializer.StringRedisSerializer;

@Configuration
public class RedisConfig {

    @Value("${spring.data.redis.host}")
    private String redisHost;

    @Value("${spring.data.redis.port}")
    private int redisPort;

    @Value("${spring.data.redis.database}")
    private int redisDatabase;

    @Value("${spring.data.redis.password}")
    private String redisPassword;

    @Bean
    public RedisConnectionFactory redisConnectionFactory() {
        RedisStandaloneConfiguration config = new RedisStandaloneConfiguration(redisHost, redisPort);
        config.setDatabase(redisDatabase);
        config.setPassword(redisPassword);

        // 配置连接池
        GenericObjectPoolConfig<Object> poolConfig = new GenericObjectPoolConfig<>();
        poolConfig.setMaxTotal(10);       // 连接池中的最大连接数
        poolConfig.setMaxIdle(5);         // 连接池中的最大空闲连接数
        poolConfig.setMinIdle(1);         // 连接池中的最小空闲连接数
        poolConfig.setMaxWaitMillis(2000); // 连接池获取连接的最大等待时间

        // 创建一个带有连接池配置的 Lettuce 客户端配置
        LettucePoolingClientConfiguration clientConfig = LettucePoolingClientConfiguration.builder()
                .poolConfig(poolConfig)
                .build();

        return new LettuceConnectionFactory(config, clientConfig);
    }

    @Bean
    public RedisTemplate<String, Object> redisTemplate() {
        RedisTemplate<String, Object> template = new RedisTemplate<>();
        template.setConnectionFactory(redisConnectionFactory());
        template.setKeySerializer(new StringRedisSerializer());
        template.setValueSerializer(new GenericToStringSerializer<>(Object.class));
        return template;
    }
}

4.可以了，测试一下试试

package com.example.springbootdemo3.controller;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.web.bind.annotation.*;

/**
 * description
 * Redis配置类
 * @author PC 2025/02/20 21:03
 */
@RestController
@RequestMapping("/redis-test")
public class RedisTestController {

    @Autowired
    private RedisTemplate<String, Object> redisTemplate;

    @GetMapping("/get")
    public Object get(@RequestParam("key") String key) {
        return redisTemplate.opsForValue().get(key);
    }

    @PostMapping
    public String set(@RequestParam("key") String key, @RequestParam("value") String value) {
        redisTemplate.opsForValue().set(key, value);
        return "success";
    }
}

在这里插入图片描述

2.Redision锁

1.添加依赖

      <!--Redis锁依赖-->
        <dependency>
            <groupId>org.redisson</groupId>
            <artifactId>redisson-spring-boot-starter</artifactId>
            <version>3.16.8</version> <!-- 请使用最新版本 -->
        </dependency>

2.添加配置

package com.example.springbootdemo3.config;

import org.redisson.Redisson;
import org.redisson.api.RedissonClient;
import org.redisson.config.Config;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

/**
 * description
 * Rdis锁配置类
 * @author PC 2025/02/20 23:48
 */
@Configuration
public class RedissonClientConfig {

    @Value("${spring.data.redis.host}")
    private String redisHost;

    @Value("${spring.data.redis.port}")
    private int redisPort;

    @Value("${spring.data.redis.password}")
    private String redisPassword;

    @Bean
    public RedissonClient redissonClient() {
        Config config = new Config();
        String address = "redis://" + redisHost + ":" + redisPort;
        config.useSingleServer()
                // 设置你的Redis服务器地址和端口
                .setAddress(address)
                // 设置密码
                .setPassword(redisPassword);
        RedissonClient redisson = Redisson.create(config);
        return redisson;
    }
}

3.然后就可以测试用一用了

package com.example.springbootdemo3.controller;

import org.redisson.api.RLock;
import org.redisson.api.RedissonClient;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.web.bind.annotation.*;

/**
 * description
 *
 * @author PC 2025/02/20 21:03
 */
@RestController
@RequestMapping("/redis-test")
public class RedisTestController {
    @Autowired
    private RedissonClient redissonClient;

    @PostMapping("/lock")
    public String lock() {
        RLock lock = redissonClient.getLock("myLock");
        boolean b = lock.tryLock();
        if(b){
            try {
                System.out.println("加锁成功");
                Thread.sleep(10000);
                return "success";
            } catch (InterruptedException e) {
                e.printStackTrace();
            }finally {
                lock.unlock();
            }
            return "success";
        }else {
            return "fail";
        }

    }
}