java jedis使用_Java中使用Jedis操作Redis
Java中使用Jedis操作Redis
使用Java操作Redis需要jedis-2.1.0.jar，下載地址：http://files.cnblogs.com/liuling/jedis-2.1.0.jar.zip
如果需要使用Redis連接池的話，還需commons-pool-1.5.4.jar，下載地址:http://files.cnblogs.com/liuling/commons-pool-1.5.4.jar.zip
1?package?com.test;
2
3?import?java.util.HashMap;
4?import?java.util.Iterator;
5?import?java.util.List;
6?import?java.util.Map;
7
8?import?org.junit.Before;
9?import?org.junit.Test;
10
11?import?redis.clients.jedis.Jedis;
12
13?public?class?TestRedis?{
14?????private?Jedis?jedis;
15
16?????@Before
17?????public?void?setup()?{
18?????????//連接redis服務器，192.168.0.100:6379
19?????????jedis?=?new?Jedis("192.168.0.100",?6379);
20?????????//權限認證
21?????????jedis.auth("admin");
22?????}
23
24?????/**
25??????*?redis存儲字符串
26??????*/
27?????@Test
28?????public?void?testString()?{
29?????????//-----添加數據----------
30?????????jedis.set("name","xinxin");//向key-->name中放入了value-->xinxin
31?????????System.out.println(jedis.get("name"));//執(zhí)行結果：xinxin
32
33?????????jedis.append("name",?"?is?my?lover");?//拼接
34?????????System.out.println(jedis.get("name"));
35
36?????????jedis.del("name");??//刪除某個鍵
37?????????System.out.println(jedis.get("name"));
38?????????//設置多個鍵值對
39?????????jedis.mset("name","liuling","age","23","qq","476777XXX");
40?????????jedis.incr("age");?//進行加1操作
41?????????System.out.println(jedis.get("name")?+?"-"?+?jedis.get("age")?+?"-"?+?jedis.get("qq"));
42
43?????}
44
45?????/**
46??????*?redis操作Map
47??????*/
48?????@Test
49?????public?void?testMap()?{
50?????????//-----添加數據----------
51?????????Mapmap?=?new?HashMap();
52?????????map.put("name",?"xinxin");
53?????????map.put("age",?"22");
54?????????map.put("qq",?"123456");
55?????????jedis.hmset("user",map);
56?????????//取出user中的name，執(zhí)行結果:[minxr]-->注意結果是一個泛型的List
57?????????//第一個參數是存入redis中map對象的key，后面跟的是放入map中的對象的key，后面的key可以跟多個，是可變參數
58?????????Listrsmap?=?jedis.hmget("user",?"name",?"age",?"qq");
59?????????System.out.println(rsmap);
60
61?????????//刪除map中的某個鍵值
62?????????jedis.hdel("user","age");
63?????????System.out.println(jedis.hmget("user",?"age"));?//因為刪除了，所以返回的是null
64?????????System.out.println(jedis.hlen("user"));?//返回key為user的鍵中存放的值的個數2
65?????????System.out.println(jedis.exists("user"));//是否存在key為user的記錄?返回true
66?????????System.out.println(jedis.hkeys("user"));//返回map對象中的所有key
67?????????System.out.println(jedis.hvals("user"));//返回map對象中的所有value
68
69?????????Iteratoriter=jedis.hkeys("user").iterator();
70?????????while?(iter.hasNext()){
71?????????????String?key?=?iter.next();
72?????????????System.out.println(key+":"+jedis.hmget("user",key));
73?????????}
74?????}
75
76?????/**
77??????*?jedis操作List
78??????*/
79?????@Test
80?????public?void?testList(){
81?????????//開始前，先移除所有的內容
82?????????jedis.del("java?framework");
83?????????System.out.println(jedis.lrange("java?framework",0,-1));
84?????????//先向key?java?framework中存放三條數據
85?????????jedis.lpush("java?framework","spring");
86?????????jedis.lpush("java?framework","struts");
87?????????jedis.lpush("java?framework","hibernate");
88?????????//再取出所有數據jedis.lrange是按范圍取出，
89?????????//?第一個是key，第二個是起始位置，第三個是結束位置，jedis.llen獲取長度?-1表示取得所有
90?????????System.out.println(jedis.lrange("java?framework",0,-1));
91
92?????????jedis.del("java?framework");
93?????????jedis.rpush("java?framework","spring");
94?????????jedis.rpush("java?framework","struts");
95?????????jedis.rpush("java?framework","hibernate");
96?????????System.out.println(jedis.lrange("java?framework",0,-1));
97?????}
98
99?????/**
100??????*?jedis操作Set
101??????*/
102?????@Test
103?????public?void?testSet(){
104?????????//添加
105?????????jedis.sadd("user","liuling");
106?????????jedis.sadd("user","xinxin");
107?????????jedis.sadd("user","ling");
108?????????jedis.sadd("user","zhangxinxin");
109?????????jedis.sadd("user","who");
110?????????//移除noname
111?????????jedis.srem("user","who");
112?????????System.out.println(jedis.smembers("user"));//獲取所有加入的value
113?????????System.out.println(jedis.sismember("user",?"who"));//判斷?who?是否是user集合的元素
114?????????System.out.println(jedis.srandmember("user"));
115?????????System.out.println(jedis.scard("user"));//返回集合的元素個數
116?????}
117
118?????@Test
119?????public?void?test()?throws?InterruptedException?{
120?????????//jedis?排序
121?????????//注意，此處的rpush和lpush是List的操作。是一個雙向鏈表(但從表現來看的)
122?????????jedis.del("a");//先清除數據，再加入數據進行測試
123?????????jedis.rpush("a",?"1");
124?????????jedis.lpush("a","6");
125?????????jedis.lpush("a","3");
126?????????jedis.lpush("a","9");
127?????????System.out.println(jedis.lrange("a",0,-1));//?[9,?3,?6,?1]
128?????????System.out.println(jedis.sort("a"));?//[1,?3,?6,?9]??//輸入排序后結果
129?????????System.out.println(jedis.lrange("a",0,-1));
130?????}
131
132?????@Test
133?????public?void?testRedisPool()?{
134?????????RedisUtil.getJedis().set("newname",?"中文測試");
135?????????System.out.println(RedisUtil.getJedis().get("newname"));
136?????}
137?}
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