The third step: redis operation of javaAPI
Operating string data type
/ **
* Add string type data
* /
@Test
public void addstr () {
Jedis Resource = jedisPool .getResource ();
// add
resource.set ( "jediskey" , "jedisvalue" );
// Query
String jediskey = resource .get ( "jediskey" );
System. OUT .println (jediskey);
// modify
resource.set ( "jediskey" , "jedisvalueUpdate" );
// delete
resource.del ( "jediskey" );
// achieve integer growth of operating data
resource.incr ("jincr");
resource.incrBy("jincr",3);
String jincr = resource.get("jincr");
System.out.println(jincr);
resource.close();
}
Operation hash list data type
/ **
* Operation hash type data
* /
@Test
public void hashOperate () {
Jedis Resource = jedisPool .getResource ();
// add data
resource.hset ( "jhsetkey" , "jmapkey" , "jmapvalue" );
Resource. HSET ( "jhsetkey" , "jmapkey2" , "jmapvalue2" );
// get all the data
the Map <String, String> jhsetkey = resource.hgetAll ( "jhsetkey" );
for (String S: jhsetkey.keySet ()) {
the System . OUT .println (S);
}
//修改数据
resource.hset("jhsetkey","jmapkey2","jmapvalueupdate2");
Map<String, String> jhsetkey2 = resource.hgetAll("jhsetkey");
for (String s : jhsetkey2.keySet()) {
System.out.println("修改数据打印"+s);
}
//删除数据
resource.del("jhsetkey");
Set<String> jhsetkey1 = resource.keys("jhsetkey");
for (String result : jhsetkey1) {
System.out.println(result);
}
}
Operation list type data
/ **
* operation list type of data
* /
@Test
public void listOperate () {
Jedis Resource = jedisPool .getResource ();
// insert elements from the left
resource.lpush ( "listKey" , "listvalue1" , "listvalue1" , "listvalue2" );
// element is removed from the right
resource.rpop ( "listKey" );
// get values for all
List <String> listKey = resource.lrange ( "listKey" , 0, -1);
for (S String : listKey) {
the System. OUT .println (S);
}
resource.close();
}
Operation data set type
/ **
* SET type of data manipulation
* /
@Test
public void setOperate () {
Jedis Resource = jedisPool .getResource ();
// add data
resource.sadd ( "the setkey" , "setvalue1" , "setvalue1" , "setvalue2" , "setvalue3" );
// query data
the Set <String> = resource.smembers the setkey ( "the setkey" );
for (S String: the setkey) {
. the System OUT .println (S);
}
// remove out a data
resource.srem ( "setkey" ,"setvalue3");
resource.close();
}