redis安装
本帖最后由 pig2 于 2014-1-4 16:21 编辑1. wgethttp://redis.googlecode.com/files/redis-2.0.4.tar.gz2. tar zxvf redis-2.0.4.tar.gz3. cdredis-2.0.44. makemake完后 redis-2.0.4目录下会出现编译后的redis服务程序redis-server,还有用于测试的客户端程序redis-cli安装成功
启动服务
./redis-server也可以通过启动参数告诉redis使用指定配置文件使用下面命令启动./redis-serverredis.confredis.conf是一个默认的配置文件。我们可以根据需要使用自己的配置文件。启动redis服务进程后，就可以使用测试客户端程序redis-cli和redis服务交互了注意启动的时候，会出现WARNINGovercommit_memory is set to 0!Background save may fail under low memorycondition. To fix this issue add'vm.overcommit_memory = 1' to /etc/sysctl.confand 10 Aug20:58:21 * The server is nowready to accept connections on port 6379 10 Aug20:58:21 - 0 clientsconnected (0 slaves), 533432 bytes in use 10 Aug20:58:30 - 0 clientsconnected (0 slaves), 533432 bytes in use由于默认配置是连接到本机的这时候你要修改配置文件的ip地址连接你服务器啊还有就是执行：sysctlvm.overcommit_memory=1然后再启动服务就可以了
下面介绍一个简单java客户端Jedis，大家可以到https://github.com/xetorthio/jedis这网址下载这里给大家提供一个简单的对jedis的封装类以供参考Redis.java
1. package com.ajun.redis;2. 3. import java.util.HashMap;4. import java.util.HashSet;5. import java.util.List;6. import java.util.Map;7. import java.util.Set;8. 9. import redis.clients.jedis.Jedis;10.import redis.clients.jedis.JedisPool;11.import redis.clients.jedis.JedisPoolConfig;12./** 13. *14. * @author ajun 15. * 16. */17.public class Redis {18. private static JedisPool pool;19. private static int DBIndex;20. private static String host;21. private static int port=6379;22. private static int timeout=60*1000;23. static {24. DBIndex=Integer.parseInt(PubConstant.getConfigureValue("redis_dbindex"));25. host=PubConstant.getConfigureValue("redis_host");26. 27. JedisPoolConfig config = new JedisPoolConfig();28. config.setMaxActive(100);29. config.setMaxIdle(20);30. config.setMaxWait((long)1000); 31. config.setTestOnBorrow(false); 32. pool = new JedisPool(config, host, port, timeout);//线程数量限制，IP地址，端口，超时时间 33. 34. }35. public static void addItemToList(String key,byte[] value)36. {37. Jedis jedis=null;38. try {39. jedis = pool.getResource();40. jedis.connect();41. jedis.select(DBIndex);42. jedis.lpush(key.getBytes(), value); 43. 44. } catch (Exception e) {45. e.printStackTrace();46. }47. finally{48. if(jedis!=null)49. pool.returnResource(jedis);50. }51. }52. @SuppressWarnings("finally")53. public static List<String> getItemFromList(String key)54. {55. Jedis jedis=null;56. //byte[] s=null;57. List<String> ss=null;58. try {59. jedis = pool.getResource();60. jedis.select(DBIndex);61. long len=jedis.llen(key);62. if(len==0) return null;63. ss = jedis.lrange(key, 0, (int)len); 64. } catch (Exception e) {65. e.printStackTrace();66. 67. }68. finally{69. if(jedis!=null)70. pool.returnResource(jedis);71. return ss;72. }73. 74. }75. public static void addItem(String key,byte[] value)76. {77. Jedis jedis=null;78. try {79. jedis = pool.getResource(); 80. jedis.select(DBIndex); 81. jedis.set(key.getBytes(), value);82. 83. } catch (Exception e) {84. e.printStackTrace();85. }86. finally{87. if(jedis!=null)88. pool.returnResource(jedis);89. }90. 91. }92. public static byte[] getItem(String key)93. {94. Jedis jedis=null;95. byte[] s=null;96. try {97. jedis = pool.getResource();98. jedis.select(DBIndex);99. s = jedis.get(key.getBytes());100. return s;101. } catch (Exception e) {102. e.printStackTrace();103. return s;104. } 105. finally{106. if(jedis!=null)107. pool.returnResource(jedis);108. 109. }110. 111. 112. }113. 114. public static void delItem(String key)115. {116. Jedis jedis=null;117. try {118. jedis = pool.getResource(); 119. jedis.select(DBIndex); 120. jedis.del(key.getBytes());121. 122. } catch (Exception e) {123. e.printStackTrace();124. }125. finally{126. if(jedis!=null)127. pool.returnResource(jedis);128. }129. 130. }131. public static long getIncrement(String key)132. {133. Jedis jedis=null;134. try {135. jedis = pool.getResource(); 136. jedis.select(DBIndex); 137. return jedis.incr(key);138. 139. } catch (Exception e) {140. e.printStackTrace();141. return 0L;142. }143. finally{144. if(jedis!=null)145. pool.returnResource(jedis);146. }147. 148. }149. 150. /** 151. * 设置map 可以存储用户信息 152. * @param key 153. * @param map 154. */155. public static voidsetHashMap(String key,HashMap<String,String> map){156. Jedis jedis=null;157. try {158. jedis = pool.getResource(); 159. jedis.select(DBIndex);160. if(map!=null && !map.isEmpty()){161. for(Map.Entry<String, String> entry : map.entrySet()){162. jedis.hset(key, entry.getKey(), entry.getValue());163. }164. 165. }166. } catch (Exception e) {167. e.printStackTrace();168. }finally{169. if(jedis!=null)170. pool.returnResource(jedis);171. }172. 173. }174. 175. public static Map<String,String>getHashMap(String key){176. Map<String,String> map = new HashMap<String,String>();177. Jedis jedis=null;178. try {179. jedis = pool.getResource(); 180. jedis.select(DBIndex);181. map = jedis.hgetAll(key);182. } catch (Exception e) {183. e.printStackTrace();184. }finally{185. if(jedis!=null)186. pool.returnResource(jedis);187. }188. return map;189. 190. }191. 192. /** 193. * 添加set 194. * @param key 195. * @param set 196. */197. public static void addSet(String key,Set<String> set){198. Jedis jedis=null;199. try {200. jedis = pool.getResource(); 201. jedis.select(DBIndex);202. if(set!=null && !set.isEmpty()){203. for(String value : set){204. /*for ( Iterator<String> memberItr = 205. jedis.smembers(str).iterator();//返回key对应set的所有元素，结果是无序的 206. memberItr.hasNext();){ 207. final String member = memberItr.next(); 208. if (!jedis.sismember(str, member)){ 209. jedis.srem(str, member); 210. } 211. }*/212. jedis.sadd(key, value);213. }214. }215. } catch (Exception e) {216. e.printStackTrace();217. }finally{218. if(jedis!=null)219. pool.returnResource(jedis);220. }221. }222. 223. public static Set<String> getSet(String key){224. Set<String> sets = new HashSet<String>();225. Jedis jedis=null;226. try {227. jedis = pool.getResource(); 228. jedis.select(DBIndex);229. sets = jedis.smembers(key);230. } catch (Exception e) {231. e.printStackTrace();232. }finally{233. if(jedis!=null)234. pool.returnResource(jedis);235. }236. 237. return sets;238. } 239. 240. 241. }
没明白，群主的安装 太简洁了
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