Redis Java
Java with Redis
在Java程序中开始使用Redis之前，需要确保已在计算机上设置了Redis Java驱动程序和Java。您可以查看我们的Java教程，以在计算机上安装Java。
安装
现在，让我们看看如何设置Redis Java驱动程序。
- 您需要下载jedis.jar。确保下载最新版本。
- 您需要将jedis.jar包含到您的类路径中。
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，让我们编译并运行上面的程序，以测试与Redis服务器的连接。您可以根据需要更改路径。我们假设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 Java字符串示例
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面的程序。
$javac RedisStringJava.java
$java RedisStringJava
Connection to server sucessfully
Stored string in redis:: Redis tutorial
Redis Java 列表（list）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面的程序。
$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 Java 键（key）示例
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面的程序。
$javac RedisKeyJava.java
$java RedisKeyJava
Connection to server sucessfully
List of stored keys:: tutorial-name
List of stored keys:: tutorial-list