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