springboot cluster basis -redis

A .pom.xml

<?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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.1.11.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>com.freeht</groupId>
    <artifactId>springbootredis</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>springbootredis</name>
    <description>Demo project for Spring Boot</description>

    <properties>
        <java.version>1.8</java.version>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-redis</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>

        <!-- https://mvnrepository.com/artifact/redis.clients/jedis -->
        <dependency>
            <groupId>redis.clients</groupId>
            <artifactId>jedis</artifactId>
            <version>2.9.0</version>
        </dependency>

        <!-- https://mvnrepository.com/artifact/org.apache.commons/commons-pool2 -->
        <dependency>
            <groupId>org.apache.commons</groupId>
            <artifactId>commons-pool2</artifactId>
            <version>2.7.0</version>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>

</project>

　　

二 .application-redis.yml

the Spring: 
  Redis: 
    Cluster: 
      survival # Set the key when the key expires, it is automatically deleted; 
      The expire-seconds The: 120 
      # Set command execution time, if more than this time, the error; 
      the Command-timeout: 5000 
      # redis cluster node information is provided, which is namenode DNS to obtain the corresponding address by resolving a domain name; nodes: 127.0.0.1:6379,127.0.0.1:6380,127.0.0.1:6381,127.0.0.1:6382,127.0. 0.1: 6383,127.0.0.1: 6384

      

　　

Three .application.properties

spring.profiles.active=redis

　　

Four .RedisProperties.java (content application-redis.yml get inside)

package com.freeht.springbootredis.config.reids;

import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.stereotype.Component;

/**
 * 获取redis.properties内容
 */
@Component
@ConfigurationProperties(prefix = "spring.redis.cluster")
public class RedisProperties {

    private Integer expireSeconds;

    private String nodes;

    private Integer commandTimeout;

    public Integer getExpireSeconds() {
        return expireSeconds;
    }

    public void setExpireSeconds(Integer expireSeconds) {
        this.expireSeconds = expireSeconds;
    }

    public String getNodes() {
        return nodes;
    }

    public void setNodes(String nodes) {
        this.nodes = nodes;
    }

    public Integer getCommandTimeout() {
        return commandTimeout;
    }

    public void setCommandTimeout(Integer commandTimeout) {
        this.commandTimeout = commandTimeout;
    }

    @Override
    public String toString() {
        return "RedisProperties{" +
                "expireSeconds=" + expireSeconds +
                ", nodes='" + nodes + '\'' +
                ", commandTimeout=" + commandTimeout +
                '}';
    }
}

　　

Five .RedisConfig.java (generation redis clusters)

package com.freeht.springbootredis.config.reids;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import redis.clients.jedis.HostAndPort;
import redis.clients.jedis.JedisCluster;

import java.util.HashSet;
import java.util.Set;

/**
 * 生成redis集群
 */
@Configuration
public class RedisConfig {

    @Autowired
    private RedisProperties redisProperties;

    @Bean
    public JedisCluster getJedisCluster(){
        //获取redis集群的ip及端口号等相关信息；
        String[] serverArray = redisProperties.getNodes().split(",");
        SET <HostAndPort> Nodes = new new HashSet <> (); 
        // add to traverse the HostAndPort; 
        for (String ipport: serverArray) { 
            String [] = ipPortPair ipPort.split ( ":"); 
            nodes.add (new new HostAndPort ( ipPortPair [0] .trim (), Integer.valueOf (ipPortPair [. 1] .trim ()))); 
        } 
        // build object and return; 
        return new new JedisCluster (Nodes, redisProperties.getCommandTimeout ()); 
    } 
}

　　

Six .JedisClient.java

package com.freeht.springbootredis.config.reids;

/**
 * 调用redis方法接口
 */
public interface JedisClient {
    String set(String key, String value);

    String get(String key);

    Boolean exists(String key);

    Long expire(String key, int seconds);

    Long ttl(String key);

    Long incr(String key);

    Long hset(String key, String field, String value);

    String hget(String key, String field);

    Long hdel(String key, String... field);
}

　　

Seven .JedisClientCluster.java

package com.freeht.springbootredis.config.reids;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
import redis.clients.jedis.JedisCluster;

/**
 * 实现redis方法
 */
@Component
public class JedisClientCluster implements JedisClient {
    @Autowired
    private JedisCluster jedisCluster;

    @Override
    public String set(String key, String value) {
        return jedisCluster.set(key, value);
    }

    @Override
    public String get(String key) {
        return jedisCluster.get(key);
    }

    @Override
    public Boolean exists(String key) {
        return jedisCluster.exists(key);
    }

    @Override
    public Long expire(String key, int seconds) {
        return jedisCluster.expire(key, seconds);
    }

    @Override
    public Long ttl(String key) {
        return jedisCluster.ttl(key);
    }

    @Override
    public Long incr(String key) {
        return jedisCluster.incr(key);
    }

    @Override
    public Long hset(String key, String field, String value) {
        return jedisCluster.hset(key, field, value);
    }

    @Override
    public String hget(String key, String field) {
        return jedisCluster.hget(key, field);
    }

    @Override
    public Long hdel(String key, String... field) {
        return jedisCluster.hdel(key, field);
    }
}

　　

Eight .TestControl.java

package com.freeht.springbootredis.control;

import com.freeht.springbootredis.config.reids.JedisClientCluster;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

@RestController
public class TestControl {

    @Autowired
    private JedisClientCluster jedisClientCluster;

    @RequestMapping(value = "set")
    public void set(){
        jedisClientCluster.set("12","12");
    }

    @RequestMapping(value = "get")
    public String get() {
        return jedisClientCluster.get("12");
    }
}

　　

Nine .SpringbootredisApplication.java

package com.freeht.springbootredis;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cache.annotation.EnableCaching;

@SpringBootApplication
@EnableCaching
public class SpringbootredisApplication {

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

}