Working with Redis in Java

1  PackageCom.redis;2 3 Importjava.io.IOException;4 ImportJava.util.concurrent.ConcurrentHashMap;5 6 ImportRedis.clients.jedis.Jedis;7 Importredis.clients.jedis.Transaction;8 /**9 * Operating Redis in JavaTen  *  One  * @authorAdministrator A  * -  */ -  Public classRedistest { the      -     //Connect to Redis -     Private Static synchronizedJedis getjedis (String IP) { -         FinalJedis JR =NewJedis (IP); +Jr.auth ("@admin123"); -SYSTEM.OUT.PRINTLN ("Connection succeeded: \ t" +jr.ping ()); +         returnJr; A     } at     //Turn off Redis connections -     Private Static synchronized voidClosejedis (Jedis Jr) { - jr.close (); -     } -     //determine if a key exists -     Private Static Booleankeyisexist (Jedis jd,string key) { in         returnjd.exists (key); -     } to     //Delete Element +     Private Static voidDelkey (Jedis JD, String key) { - Jd.del (key); the     } *     //Action String $     Private Static synchronized voidOpstring (Jedis Jr) {Panax Notoginseng         if(Keyisexist (Jr, "Company"))) -Delkey (Jr, "Company")); theJr.set ("Company", "Oracle"); +System.out.println (Jr.get ("Company"))); A     } the     //Operation Hash +     Private Static voidOphash (Jedis Jr) { -         if(Keyisexist (Jr, "user1"))) $Delkey (Jr, "user1"); $concurrenthashmap<string,string> CHM =NewConcurrenthashmap<string, string>(); -Chm.put ("name", "Tom"); -Chm.put ("Age", "26"); theChm.put ("Major", "Computer"); -Jr.hmset ("user1", CHM);WuyiSystem.out.println (Jr.hgetall ("user1"). Get ("name"))); theSystem.out.println (Jr.hgetall ("user1"). Get ("Age")); -System.out.println (Jr.hgetall ("user1"). Get ("major")); Wu     } -     //Action list About     Private Static synchronized voidOplist (Jedis Jr) { $         if(Keyisexist (Jr, "Colorset"))) -Delkey (Jr, "Colorset"); -Jr.lpush ("Colorset", "Red", "blue", "yellow", "red"); -System.out.println (Jr.lrange ("Colorset", 0, 10)); A     } +     //Operation Set the     Private Static synchronized voidOpset (Jedis Jr) { -         if(Keyisexist (JR, "hobby"))) $Delkey (JR, "hobby"); theJr.sadd ("Hobby", "Running", "basketball", "volleyball", "volleyball"); theSystem.out.println (Jr.smembers ("hobby")); theSystem.out.println (Jr.smembers ("hobby"). Size ()); the     } -     //Operation Zset in     Private Static synchronized voidOpzset (Jedis Jr) { the         if(Keyisexist (Jr, "Hobby2"))) theDelkey (Jr, "Hobby2"); AboutJr.zadd ("Hobby2", 2.0, "Running"); theJr.zadd ("Hobby2", 2.0, "basketball"); theJr.zadd ("Hobby2", 2.0, "Volleyball"); theJr.zadd ("Hobby2", 2.0, "Volleyball"); +          for(String s:jr.zrangebyscore ("Hobby2", 0, 4)) - System.out.println (s); the     }Bayi     //Database Backup the     Private Static synchronized voidSave (Jedis Jr) { the Jr.save (); -     } -     //Transaction Control the     Private Static voidTrancontroller (Jedis Jr)throwsioexception{ theSystem.out.println ("************************************** Open transaction **************************************"); theTransaction trans =Jr.multi (); theSystem.out.println ("*********java Redis begins execution of transaction *********"); - trans.exec (); theSystem.out.println ("*********java Redis operating string*********"); the Opstring (JR); theSystem.out.println ("*********java Redis operating String over*********");94System.out.println ("*********java Redis operating hash*********"); the Ophash (JR); theSystem.out.println ("*********java Redis operating hash over*********"); theSystem.out.println ("*********java Redis operating list*********");98 Oplist (JR); AboutSystem.out.println ("*********java Redis operating List over*********"); -System.out.println ("*********java Redis operating set*********");101 Opset (JR);102System.out.println ("*********java Redis operating Set over*********");103System.out.println ("*********java Redis operating zset*********");104 Opzset (JR); theSystem.out.println ("*********java Redis operating Zset over*********");106System.out.println ("*********java Redis save Redis db*********");107 Save (JR);108System.out.println ("*********java Redis save Redis DB over*********");109 trans.close (); theSystem.out.println ("************************************** Close transaction **************************************");111System.out.println ("*********java Redis close Redis db connection*********"); the Closejedis (JR);113System.out.println ("*********java Redis close Redis db connection over*********"); the     } the      Public Static voidMain (string[] args)throwsioexception{ theJedis Jr = Getjedis ("localhost");117 Trancontroller (JR);118     }119}

Working with Redis in Java