Basic use of jedis

jedis It's using java To operate redis Middleware .

First create maven project , Import jedis rely on .

public static void main(String[] args) {
    
	// 1.  establish Jedis object 
	Jedis jedis = new Jedis("127.0.0.1", 6379);
	// jedis All the way is redis All the orders of 
	//  Test link 
	System.out.println(jedis.ping());
}

jedis Part of API Example ：

// Empty data 
jedis.flushDB();
// Determine whether a key exists 
jedis.exists("k1");
// Add key value pair 
jedis.set("k1","v1");
// All key value pairs in the system 
Set<String> set = jedis.keys("*");
// Delete key 
jedis.del("k1");
// The type of judgment value 
jedis.type("k2");
// Returns the data in all current databases key Number of 
jedis.dbSize();

jedis Implementing transaction

public static void main(String[] args) {
    
	// 1.  establish Jedis object 
	Jedis jedis = new Jedis("127.0.0.1", 6379);
	//  Open transaction 
	Transaction multi = jedis.multi(); 
	try{
    
		multi.set("k1","v1");
		multi.exec();	
	} catch(Exception e) {
    
		multi.discard();
	} finally {
    
		jedis.close();
	}
	
}