spring-boot 使用lettuce redis客户端

config类：

package net.loyin.cloud.upms.config;

import org.apache.commons.pool2.impl.GenericObjectPoolConfig;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.boot.autoconfigure.AutoConfigureAfter;
import org.springframework.boot.autoconfigure.data.redis.RedisAutoConfiguration;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.connection.*;
import org.springframework.data.redis.connection.lettuce.LettuceClientConfiguration;
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.StringRedisSerializer;

import java.time.Duration;
import java.util.HashSet;
import java.util.Set;

@Configuration
@AutoConfigureAfter(RedisAutoConfiguration.class)
public class RedisConfig {
    @Value("${spring.redis.database:0}")
    private int database;

    @Value("${spring.redis.host:localhost}")
    private String host;
    @Value("${spring.redis.nodes:}")
    private String clusterNodes;

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

    @Value("${spring.redis.port:6379}")
    private int port;

    @Value("${spring.redis.timeout:1000}")
    private long timeout;

    @Value("${spring.redis.lettuce.pool.max-idle:8}")
    private int maxIdle;

    @Value("${spring.redis.lettuce.pool.min-idle:8}")
    private int minIdle;

    @Value("${spring.redis.lettuce.pool.max-active:10}")
    private int maxActive;

    @Value("${spring.redis.lettuce.pool.max-wait:-1}")
    private long maxWait;

    /**
     * 配置自定义redisTemplate
     *
     * @return
     */
    @Bean
    public RedisTemplate<String, Object> redisTemplate(RedisConnectionFactory redisConnectionFactory) {
        RedisTemplate<String, Object> template = new RedisTemplate<>();
        template.setConnectionFactory(redisConnectionFactory);

        //使用Jackson2JsonRedisSerializer来序列化和反序列化redis的value值
        /*Jackson2JsonRedisSerializer serializer = new Jackson2JsonRedisSerializer(Object.class);

        ObjectMapper mapper = new ObjectMapper();
        mapper.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.ANY);
        mapper.enableDefaultTyping(ObjectMapper.DefaultTyping.NON_FINAL);
        serializer.setObjectMapper(mapper);*/


        //使用StringRedisSerializer来序列化和反序列化redis的key值
        StringRedisSerializer stringRedisSerializer=new StringRedisSerializer();
        template.setKeySerializer(stringRedisSerializer);
        template.setValueSerializer(stringRedisSerializer);
        template.setHashKeySerializer(stringRedisSerializer);
        template.setHashValueSerializer(stringRedisSerializer);
        template.afterPropertiesSet();
        return template;
    }

    @Bean
    LettuceConnectionFactory redisConnectionFactory() {
        RedisConfiguration redisConfiguration = null;
        if (clusterNodes != null&&"".equals(clusterNodes)==false) {
            // 集群版配置
            RedisClusterConfiguration redisClusterConfiguration = new RedisClusterConfiguration();
            String[] serverArray = clusterNodes.split(",");
            Set<RedisNode> nodes = new HashSet<RedisNode>();
            for (String ipPort : serverArray) {
                String[] ipAndPort = ipPort.split(":");
                nodes.add(new RedisNode(ipAndPort[0].trim(), Integer.valueOf(ipAndPort[1])));
            }
            redisClusterConfiguration.setPassword(RedisPassword.of(password));
            redisClusterConfiguration.setClusterNodes(nodes);
//            redisClusterConfiguration.setMaxRedirects(maxRedirects);
            redisConfiguration = redisClusterConfiguration;
        } else {
            // 单机版配置
            RedisStandaloneConfiguration redisStandaloneConfiguration = new RedisStandaloneConfiguration();
            redisStandaloneConfiguration.setDatabase(database);
            redisStandaloneConfiguration.setHostName(host);
            redisStandaloneConfiguration.setPort(port);
            if (password != null && "".equals(password) == false) {
                redisStandaloneConfiguration.setPassword(RedisPassword.of(password));
            }
            redisConfiguration = redisStandaloneConfiguration;
        }


        GenericObjectPoolConfig poolConfig = new GenericObjectPoolConfig();
        poolConfig.setMaxIdle(maxIdle);
        poolConfig.setMinIdle(minIdle);
        poolConfig.setMaxTotal(maxActive);
        poolConfig.setMaxWaitMillis(maxWait);
        LettuceClientConfiguration clientConfig = LettucePoolingClientConfiguration.builder()
                .commandTimeout(Duration.ofMillis(timeout))
                .poolConfig(poolConfig)
                .build();

        LettuceConnectionFactory factory = new LettuceConnectionFactory(redisConfiguration, clientConfig);
        return factory;
    }
}

yml文件：

spring:
  redis:
    database: 0 # Redis默认情况下有16个分片，这里配置具体使用的分片，默认是0
    host: 192.168.86.130
    port: 6379
    lettuce: # netty 线程安全的reids客户端
      pool:
        max-active: 8  # 连接池最大连接数（使用负值表示没有限制） 默认 8
        max-idle: 8 # 连接池中的最大空闲连接 默认 8
        max-wait: -1 # 连接池最大阻塞等待时间（使用负值表示没有限制） 默认 -1
        min-idle: 0 # 连接池中的最小空闲连接 默认 0
    timeout: 10000 # 连接超时(ms)

如上配置，使用了连接池。

pom.xml如下：

<?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>net.loyin.study</groupId>
    <artifactId>redis</artifactId>
    <version>1.0-SNAPSHOT</version>
    <repositories>
        <repository>
            <id>aliyun-repos</id>
            <url>https://maven.aliyun.com/repository/public</url>
            <snapshots>
                <enabled>false</enabled>
            </snapshots>
        </repository>
    </repositories>
    <properties>
        <java.version>1.8</java.version>
        <spring.boot.version>2.1.7.RELEASE</spring.boot.version>
    </properties>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.1.7.RELEASE</version>
    </parent>
    <dependencies>
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <version>1.18.8</version>
            <scope>compile</scope>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
            <version>${spring.boot.version}</version>
            <exclusions>
                <exclusion>
                    <groupId>org.springframework.boot</groupId>
                    <artifactId>spring-boot-starter-tomcat</artifactId>
                </exclusion>
            </exclusions>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-redis</artifactId>
            <version>${spring.boot.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
        <!-- redis依赖commons-pool 这个依赖一定要添加 -->
        <dependency>
            <groupId>org.apache.commons</groupId>
            <artifactId>commons-pool2</artifactId>
        </dependency>
    </dependencies>
    <build>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-deploy-plugin</artifactId>
                <version>${maven-deploy-plugin.version}</version>
                <configuration>
                    <skip>true</skip>
                </configuration>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <configuration>
                    <source>${java.version}</source>
                    <target>${java.version}</target>
                </configuration>
            </plugin>
        </plugins>
    </build>
</project>

来源：https://my.oschina.net/loyin/blog/3106216

标签

Redis

Spring

YML

Lettuce

Spring Boot