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常用API之string

public static void main(String[] args) {
        Jedis jedis = new Jedis("127.0.0.1",6379);
        jedis.auth("12345");

        System.out.println("==================增加資料==================");
        System.out.println(jedis.set("key1","value1"));
        System.out.println(jedis.set("key2","value2"));
        System.out.println(jedis.set("key3","value3"));
        System.out.println("刪除鍵key2:"+jedis.del("key2"));
        System.out.println("獲取鍵值key2:"+jedis.get("key2"));
        System.out.println("修改key1:"+jedis.set("key1","value1Changed"));
        System.out.println("獲取鍵值key1:"+jedis.get("key1"));
        System.out.println("在key3後面加入值:"+jedis.append("key3","End"));
        System.out.println("獲取鍵值key3:"+jedis.get("key3"));
        System.out.println("增加多個鍵值對:"+jedis.mset("key01","value01","key02","value02"));
        System.out.println("獲取多個鍵值對:"+jedis.mget("key01","key02","key03"));
        System.out.println("獲取多個鍵值對:"+jedis.mget("key01","key02","key03","key04"));
        System.out.println("刪除多個鍵值對:"+jedis.del("key01","key02","key03"));
        System.out.println("獲取多個鍵值對:"+jedis.mget("key01","key02","key03"));

        jedis.flushDB();
        System.out.println("=====================新增鍵值對防止覆蓋原先值=====================");
        System.out.println(jedis.setnx("key1","value1"));
        System.out.println(jedis.setnx("key2","value2"));
        System.out.println(jedis.setnx("key2","value2-new"));
        System.out.println(jedis.get("key1"));
        System.out.println(jedis.get("key2"));

        System.out.println("=====================新增鍵值對並設定有效時間=====================");
        System.out.println(jedis.setex("key3",2,"value3"));
        System.out.println(jedis.get("key3"));
        try {
            TimeUnit.SECONDS.sleep(3);
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
        System.out.println(jedis.get("key3"));

        System.out.println("=====================獲取原值,更新為新值=====================");
        System.out.println(jedis.getSet("key2","key2GetSet"));
        System.out.println(jedis.get("key2"));

        System.out.println("擷取key2的值:"+jedis.getrange("key2",2,4));
    }