Java链接redis_动力节点Java学院整理

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。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
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