Java uses Redis

Installation

Before you start using Redis in Java, We need to ensure that the redis service and Java redis driver have been installed, and Java can be used normally on your machine. For Java installation configuration, please refer to our Java development environment configuration. Next, let us install the Java redis driver:

• First you need to download the driver package, Download jedis.jar , make sure to download the latest driver package.

• Include the driver package in your classpath.

Connect to the redis service

import redis.clients.jedis.Jedis;
public class RedisJava {
   public static void main(String[] args) {
      //连接本地的 Redis 服务
      Jedis jedis = new Jedis("localhost");
      System.out.println("Connection to server sucessfully");
      //查看服务是否运行
      System.out.println("Server is running: "+jedis.ping());
 }
}

Compile the above Java program and make sure the path to the driver package is correct.

$javac RedisJava.java
$java RedisJava
Connection to server sucessfully
Server is running: PONG

Redis Java String Example

Redis Java String (string) Example

import redis.clients.jedis.Jedis;
public class RedisStringJava {
   public static void main(String[] args) {
      //连接本地的 Redis 服务
      Jedis jedis = new Jedis("localhost");
      System.out.println("Connection to server sucessfully");
      //设置 redis 字符串数据
      jedis.set("w3ckey", "Redis tutorial");
     // 获取存储的数据并输出
     System.out.println("Stored string in redis:: "+ jedis.get("w3ckey"));
 }
}

Compile the above program.

$javac RedisStringJava.java
$java RedisStringJava
Connection to server sucessfully
Stored string in redis:: Redis tutorial

Redis Java List (list) Example

import redis.clients.jedis.Jedis;
public class RedisListJava {
   public static void main(String[] args) {
      //连接本地的 Redis 服务
      Jedis jedis = new Jedis("localhost");
      System.out.println("Connection to server sucessfully");
      //存储数据到列表中
      jedis.lpush("tutorial-list", "Redis");
      jedis.lpush("tutorial-list", "Mongodb");
      jedis.lpush("tutorial-list", "Mysql");
     // 获取存储的数据并输出
     List<String> list = jedis.lrange("tutorial-list", 0 ,5);
     for(int i=0; i<list.size(); i++) {
       System.out.println("Stored string in redis:: "+list.get(i));
     }
 }
}

Compile the above program.

$javac RedisListJava.java
$java RedisListJava
Connection to server sucessfully
Stored string in redis:: Redis
Stored string in redis:: Mongodb
Stored string in redis:: Mysql

Redis Java Keys Example

import redis.clients.jedis.Jedis;
public class RedisKeyJava {
   public static void main(String[] args) {
      //连接本地的 Redis 服务
      Jedis jedis = new Jedis("localhost");
      System.out.println("Connection to server sucessfully");
      
     // 获取数据并输出
     List<String> list = jedis.keys("*");
     for(int i=0; i<list.size(); i++) {
       System.out.println("List of stored keys:: "+list.get(i));
     }
   }
}

Compile the above program.

$javac RedisKeyJava.java
$java RedisKeyJava
Connection to server sucessfully
List of stored keys:: tutorial-name
List of stored keys:: tutorial-list