Using Redis for Java

Installation

Before we start using Redis in Java, we need to make sure that we have the Redis service and the Java Redis driver installed and that Java is working properly on your machine. Java installation configuration can refer to our Java Development environment configuration next let's install the Java Redis driver:

• First you need to download the driver package, download the Jedis.jar, and make sure to download the latest driver package.
• Include the driver package in your classpath.

Connect to the Redis service

2. Import Redis. Clients. Jedis. Jedis;
4. Public class Redisjava {
6. public static void main(String[] args) {
8. //Connect to local Redis service
10. Jedis Jedis = new Jedis("localhost");
12. System. Out. println("Connection to Server sucessfully");
14. //See if the service is running
16. System. Out. println("Server is running:"+Jedis. Ping());
18. }
20. }

Compile the above Java program to ensure that the path to the driver package is correct.

1. $javac Redisjava. Java
2. $java Redisjava
3. Connection to server sucessfully
4. Server is running: PONG
6. Redis Java String Example

Redis Java String (string) instance

2. Import Redis. Clients. Jedis. Jedis;
4. Public class Redisstringjava {
6. public static void main(String[] args) {
8. //Connect to local Redis service
10. Jedis Jedis = new Jedis("localhost");
12. System. Out. println("Connection to Server sucessfully");
14. //Set Redis string data
16. Jedis. Set("W3ckey", "Redis Tutorial");
18. //Get stored data and output
20. System. Out. println("Stored string in Redis::"+ Jedis. Get("W3ckey"));
22. }
24. }

Compile the above program.

1. $javac Redisstringjava. Java
2. $java Redisstringjava
3. Connection to server sucessfully
4. Stored string in redis:: redis tutorial

Redis Java list (list) instance

2. Import Redis. Clients. Jedis. Jedis;
4. Public class Redislistjava {
6. public static void main(String[] args) {
8. //Connect to local Redis service
10. Jedis Jedis = new Jedis("localhost");
12. System. Out. println("Connection to Server sucessfully");
14. //Store data in the list
16. Jedis. Lpush("Tutorial-list", "Redis");
18. Jedis. Lpush("Tutorial-list", "Mongodb");
20. Jedis. Lpush("Tutorial-list", "Mysql");
22. //Get stored data and output
24. list<string > list = Jedis.lrange (, Span class= "lit" >0 ,5
26. for(int i=0; i<list. Size(); i+ +) {
28. System. Out. println("Stored string in Redis::"+list. ) Get(i));
30. }
32. }
34. }

Compile the above program.

2. $javac Redislistjava. Java
4. $java Redislistjava
6. Connection to server sucessfully
8. Stored string in redis:: redis
10. Stored string in redis:: Mongodb
12. Stored string in redis:: Mysql

Redis Java Keys Instance

2. Import Redis. Clients. Jedis. Jedis;
4. Public class Rediskeyjava {
6. public static void main(String[] args) {
8. //Connect to local Redis service
10. Jedis Jedis = new Jedis("localhost");
12. System. Out. println("Connection to Server sucessfully");
16. //Get data and output
18. list<String> list = Jedis. Keys("*");
20. for(int i=0; i<list. Size(); i+ +) {
22. System. Out. println("List of stored keys::"+List. ) Get(i));
24. }
26. }
28. }

Compile the above program.

1. $javac Rediskeyjava. Java
2. $java Rediskeyjava
3. Connection to server sucessfully
4. List of stored keys:: Tutorial-name
5. List of stored keys:: Tutorial-list

Using Redis for Java