Redis系列--6、Redis Java连接操作

安装

要在Java程序中使用使用操作Redis，需要确保有Redis的Java驱动程序和Java设置在机器上。可以检查看Java教程-学习如何在机器上安装Java。现在，让我们来看看如何设置Redis的Java驱动程序。
需要下载jedis.jar。请一定要下载它的最新版本。

需要包括jedis.jar到你的类路径中。

连接到Redis服务器

import redis.clients.jedis.Jedis;
public class RedisJava {
public static void main(String[] args) {
//Connecting to Redis server on localhost
Jedis jedis = new Jedis("localhost");
System.out.println("Connection to server sucessfully");
//check whether server is running or not
System.out.println("Server is running: "+jedis.ping());
}
}

现在，让我们来编译和运行上面的程序来测试连接Redis服务器。你可以根据实际情况改变路径。这里假设jedis.jar的当前版本在当前路径中可用

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

Redis和Java字符串实例

import redis.clients.jedis.Jedis;
public class RedisStringJava {
public static void main(String[] args) {
//Connecting to Redis server on localhost
Jedis jedis = new Jedis("localhost");
System.out.println("Connection to server sucessfully");
//set the data in redis string
jedis.set("tutorial-name", "Redis tutorial");
// Get the stored data and print it
System.out.println("Stored string in redis:: "+ jedis.get("tutorial-name"));
}
}

现在，让我们编译并运行上述程序。

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

Redis和Java列表示例

import redis.clients.jedis.Jedis;
public class RedisListJava {
public static void main(String[] args) {
//Connecting to Redis server on localhost
Jedis jedis = new Jedis("localhost");
System.out.println("Connection to server sucessfully");
//store data in redis list
jedis.lpush("tutorial-list", "Redis");
jedis.lpush("tutorial-list", "Mongodb");
jedis.lpush("tutorial-list", "Mysql");
// Get the stored data and print it
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));
}
}
}

现在，让我们编译并运行上述程序。

$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和Java的键实例

import redis.clients.jedis.Jedis;
public class RedisKeyJava {
public static void main(String[] args) {
//Connecting to Redis server on localhost
Jedis jedis = new Jedis("localhost");
System.out.println("Connection to server sucessfully");
//store data in redis list
// Get the stored data and print it
List<String> list = jedis.keys("*");
for(int i=0; i<list.size(); i++) {
System.out.println("List of stored keys:: "+list.get(i));
}
}
}

现在，让我们编译并运行上述程序。

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