java对redis的操作

需要两个包的支持

jedis-2.1.0.jar

commons-pool-1.5.4.jar

一个连接池一个工具类

pool代码

 public class RedisUtil {

     private static String ADDR = "127.0.0.1";

     private static int PORT = 6379;

     private static String AUTH = "123456789";

     private static int MAX_ACTIVE = 1024;

     private static int MAX_IDLE = 200;

     private static int MAX_WAIT = 10000;

     private static int TIMEOUT = 10000;

     private static boolean TEST_ON_BORROW = true;

     private static JedisPool jedisPool = null;

     static {
         try {
             JedisPoolConfig config = new JedisPoolConfig();
             config.setMaxActive(MAX_ACTIVE);
             config.setMaxIdle(MAX_IDLE);
             config.setMaxWait(MAX_WAIT);
             config.setTestOnBorrow(TEST_ON_BORROW);
             jedisPool = new JedisPool(config, ADDR, PORT, TIMEOUT, AUTH);
         } catch (Exception e) {
             e.printStackTrace();
         }
     }

     public synchronized static Jedis getJedis() {
         try {
             if (jedisPool != null) {
                 Jedis resource = jedisPool.getResource();
                 return resource;
             } else {
                 return null;
             }
         } catch (Exception e) {
             e.printStackTrace();
             return null;
         }
     }

     public static void returnResource(final Jedis jedis) {
         if (jedis != null) {
             jedisPool.returnResource(jedis);
         }
     }
 }

工具类的代码

  public void tools() {
         //连接redis服务器
         jedis = new Jedis("127.0.0.1", 6379);
         //权限认证
         jedis.auth("123456789");
         //-----添加数据----------
         jedis.set("name","xinxin");//向key-->name中放入了value-->xinxin
         System.out.println(jedis.get("name"));//执行结果：xinxin  

         jedis.append("name", " is my lover"); //拼接
         System.out.println(jedis.get("name")); 

         jedis.del("name");  //删除某个键
         System.out.println(jedis.get("name"));
  }

实际上

set就包括插入修改的功能

get查询，一定有结果，应用时应判断查询结果是不是null

del删除