Redis Java連接操作

安裝

要在Java程序中使用使用操作Redis，需要確保有Redis的Java驅動程序和Java設置在機器上。可以檢查看Java教程-學習如何在機器上安裝Java。現在，讓我們來看看如何設置Redis的Java驅動程序。

• 需要下載jedis.jar。請一定要下載它的最新版本。
• 需要包括jedis.jar到你的類路徑中。

連接到Redis服務器

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());
}
}

現在，讓我們來編譯和運行上面的程序來測試連接Redis服務器。你可以根據實際情況改變路徑。這里假設jedis.jar的當前版本在當前路徑中可用

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

Redis和Java字符串實例

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”));

}

}

現在，讓我們編譯並運行上述程序。

$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));

}

}

}

現在，讓我們編譯並運行上述程序。

$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的鍵實例

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));

}

}

}

現在，讓我們編譯並運行上述程序。

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

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