linux中设置密码
[root@iZ254lfyd6nZ ~]# cd / [root@iZ254lfyd6nZ /]# ls bin boot dev etc home lib lib64 lost+found media mnt opt proc root sbin selinux srv sys tmp usr var [root@iZ254lfyd6nZ /]# cd usr [root@iZ254lfyd6nZ usr]# ls bin etc games include lib lib64 libexec local sbin share src tmp [root@iZ254lfyd6nZ usr]# cd local [root@iZ254lfyd6nZ local]# ls aegis bin etc games include lib lib64 libexec redis redis-2.8.12.tar.gz sbin share src [root@iZ254lfyd6nZ local]# cd redis [root@iZ254lfyd6nZ redis]# ls 00-RELEASENOTES CONTRIBUTING deps INSTALL MANIFESTO redis.conf runtest-sentinel src utils BUGS COPYING dump.rdb Makefile README runtest sentinel.conf tests [root@iZ254lfyd6nZ redis]# cd src [root@iZ254lfyd6nZ src]# ls adlist.c aof.o db.o intset.h mkreleasehdr.sh rand.c redis-check-dump replication.o sha1.h t_list.o ziplist.o adlist.h asciilogo.h debug.c intset.o multi.c rand.h redis-check-dump.c rio.c sha1.o t_set.c zipmap.c adlist.o bio.c debug.o lzf_c.c multi.o rand.o redis-check-dump.o rio.h slowlog.c t_set.o zipmap.h ae.c bio.h dict.c lzf_c.o networking.c rdb.c redis-cli rio.o slowlog.h t_string.c zipmap.o ae_epoll.c bio.o dict.h lzf_d.c networking.o rdb.h redis-cli.c scripting.c slowlog.o t_string.o zmalloc.c ae_evport.c bitops.c dict.o lzf_d.o notify.c rdb.o redis-cli.o scripting.o solarisfixes.h t_zset.c zmalloc.h ae.h bitops.o endianconv.c lzf.h notify.o redisassert.h redis.h sds.c sort.c t_zset.o zmalloc.o ae_kqueue.c config.c endianconv.h lzfP.h object.c redis-benchmark redis.o sds.h sort.o util.c ae.o config.h endianconv.o Makefile object.o redis-benchmark.c redis-sentinel sds.o syncio.c util.h ae_select.c config.o fmacros.h Makefile.dep pqsort.c redis-benchmark.o redis-server sentinel.c syncio.o util.o anet.c crc64.c help.h memtest.c pqsort.h redis.c release.c sentinel.o testhelp.h valgrind.sup anet.h crc64.h hyperloglog.c memtest.o pqsort.o redis-check-aof release.h setproctitle.c t_hash.c version.h anet.o crc64.o hyperloglog.o migrate.c pubsub.c redis-check-aof.c release.o setproctitle.o t_hash.o ziplist.c aof.c db.c intset.c migrate.o pubsub.o redis-check-aof.o replication.c sha1.c t_list.c ziplist.h [root@iZ254lfyd6nZ src]# ./redis-cli 127.0.0.1:6379> get name "tanglei1234" 127.0.0.1:6379> config get requirepass 1) "requirepass" 2) "" 127.0.0.1:6379> config set requirepass newpsw OK 127.0.0.1:6379> config get requirepass (error) NOAUTH Authentication required. 127.0.0.1:6379> auth newpsw OK 127.0.0.1:6379> get name "tanglei1234" 127.0.0.1:6379> Connection closed by foreign host.
java代码访问的redis工具类
package com.guilf.service.impl; import org.apache.commons.pool2.impl.GenericObjectPoolConfig; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import redis.clients.jedis.Jedis; import redis.clients.jedis.JedisPool; import java.util.Iterator; import java.util.Map; import java.util.Properties; import java.util.Set; import java.util.concurrent.Executors; import java.util.concurrent.ScheduledExecutorService; import java.util.concurrent.TimeUnit; public class RedisUtil { private static final Logger log = LoggerFactory.getLogger(RedisUtil.class); // private static final Properties properties = ClassesConfigLoader.getProperties(); // private static final String host = properties.getProperty("redis.host"); // private static final int port = Integer.valueOf(properties.getProperty("redis.port")); // private static final String instanceid = properties.getProperty("redis.instanceid"); // private static final String password = properties.getProperty("redis.password"); // private static final int timeout = Integer.valueOf(properties.getProperty("redis.timeout", "2000")); // private static final int maxTotal = Integer.valueOf(properties.getProperty("redis.maxTotal", "1024")); // private static final int maxIdle = Integer.valueOf(properties.getProperty("redis.maxIdle", "10")); // private static final int maxWaitMillis = Integer.valueOf(properties.getProperty("redis.maxWaitMillis", "3000")); // private static final boolean testOnIdle = Boolean.valueOf(properties.getProperty("redis.testOnIdle", "true")); //是否checkIdle // private static final int timeCheckIdle = Integer.valueOf(properties.getProperty("redis.timeCheckIdle", "60000")); //每隔多少秒check一次 // private static final int idleTimeout = Integer.valueOf(properties.getProperty("redis.idleTimeout", "300000")); //超时时间 // private static final int numTestsPerEvictionRun = Integer.valueOf(properties.getProperty("redis.numTestsPerEvictionRun", "1024")); //一次驱逐过程中,最多驱逐对象的个数 private static final String host = "192.168.88.134"; private static final int port = 6379; // private static final String instanceid = properties.getProperty("redis.instanceid"); private static final String password = "123456"; private static final int timeout = 2000; private static final int maxTotal = 1024; private static final int maxIdle = 10; private static final int maxWaitMillis = 3000; private static final boolean testOnIdle = true; //是否checkIdle private static final int timeCheckIdle = 60000; //每隔多少秒check一次 private static final int idleTimeout = 300000; //超时时间 private static final int numTestsPerEvictionRun = 1024; //一次驱逐过程中,最多驱逐对象的个数 private static JedisPool pool = null; //private static Jedis jedis = null; private static Object lock = new Object(); static { init(); } private static void init() { if (null == pool) { GenericObjectPoolConfig config = new GenericObjectPoolConfig(); config.setMaxTotal(maxTotal); config.setMaxIdle(maxIdle); config.setMaxWaitMillis(maxWaitMillis); config.setTestWhileIdle(testOnIdle); config.setTimeBetweenEvictionRunsMillis(timeCheckIdle); config.setMinEvictableIdleTimeMillis(idleTimeout); config.setNumTestsPerEvictionRun(numTestsPerEvictionRun); synchronized (lock) { if (null == pool) { try { pool = new JedisPool(config, host, port, timeout, password); log.info("init jedis pool successful!"); } catch (Exception e) { log.error("", e); } } } } } // public static Jedis getInstance() { // init(); // // return jedis; // } /** * 获取一个jedis 对象 * * @return */ private static Jedis getJedis() { if (pool == null) { init(); } return pool.getResource(); } /** * 返还到连接池 * * @param pool * @param redis */ private static void returnResource(Jedis redis) { if (redis != null) { redis.close(); } } // 删除key public static Long del(String key) { Jedis jedis = null; try { jedis = getJedis(); return jedis.del(key); } catch (Exception e) { log.error("操作Redis发生异常,异常详情:", e); return -1L; } finally { // 返还到连接池 returnResource(jedis); } } public static Boolean exists(String key) { Jedis jedis = null; Boolean flag = false; try { jedis = getJedis(); flag = jedis.exists(key); } catch (Exception e) { log.error("操作Redis发生异常,异常详情:", e); } finally { // 返还到连接池 returnResource(jedis); } return flag; } /** * 获取数据 * * @param key * @return */ public static String get(String key) { String value = null; Jedis jedis = null; try { jedis = getJedis(); value = jedis.get(key); } catch (Exception e) { log.error("操作Redis发生异常,异常详情:", e); } finally { // 返还到连接池 returnResource(jedis); } return value; } // 设置 public static String set(String key, String value) { Jedis jedis = null; try { jedis = getJedis(); return jedis.set(key, value); } catch (Exception e) { log.error("操作Redis发生异常,异常详情:", e); return ""; } finally { // 返还到连接池 returnResource(jedis); } } // 获取Hash值 public static String hget(String key, String field) { Jedis jedis = null; String value = null; try { jedis = getJedis(); value = jedis.hget(key, field); } catch (Exception e) { log.error("操作Redis发生异常,异常详情:", e); } finally { // 返还到连接池 returnResource(jedis); } return value; } public static Map<String, String> hgetAll(String key) { Jedis jedis = null; Map<String, String> value = null; try { jedis = getJedis(); value = jedis.hgetAll(key); } catch (Exception e) { log.error("操作Redis发生异常,异常详情:", e); } finally { // 返还到连接池 returnResource(jedis); } return value; } // 设置Hash值 public static Long hset(String key, String field, String value) { Jedis jedis = null; try { jedis = getJedis(); return jedis.hset(key, field, value); } catch (Exception e) { log.error("操作Redis发生异常,异常详情:", e); return -1L; } finally { // 返还到连接池 returnResource(jedis); } } // 删除Hash值 public static Long hdel(String key, String... fields) { Jedis jedis = null; try { jedis = getJedis(); return jedis.hdel(key, fields); } catch (Exception e) { log.error("操作Redis发生异常,异常详情:", e); return -1L; } finally { // 返还到连接池 returnResource(jedis); } } public static Long expire(String key, int seconds) { Jedis jedis = null; try { jedis = getJedis(); return jedis.expire(key, seconds); } catch (Exception e) { log.error("操作Redis发生异常,异常详情:", e); return -1L; } finally { // 返还到连接池 returnResource(jedis); } } public static void main(String[] args) { try { Jedis jedis = getJedis(); System.out.println("连接成功"); Set<String> keys = jedis.keys("*"); Iterator<String> it=keys.iterator() ; while(it.hasNext()){ String key = it.next(); System.out.println(key); } // while (true) { // String key = "ftc-ump-mid"; // //System.out.println("before setting: " + jedis.hget(key, "attr")); // System.out.println(">>" + RedisUtil.hset(key, "attr", "0")); // RedisUtil.expire(key, 5); // // System.out.println("after setting: " + RedisUtil.hget(key, "attr")); // System.out.println(">>" + RedisUtil.hdel(key, "attr")); // // System.out.println("after delete: " + RedisUtil.hget(key, "attr")); // // Thread.sleep(1000 * 10); // } //关闭退出 //jedis.quit(); //jedis.close(); } catch (Exception e) { e.printStackTrace(); } } }