代码中调用 linux 命令批量删除指定redis缓存数据

在业务中为了分类匹配key，如：
需要当月内要缓存的key：

登陆时的key:

等，需要处理分类批量删除key-value的集合。
适用定时任务定时调用linux服务器上的命令脚本，进行定时批量删除。

调用执行服务器上脚本的代码：

public class delRedisCacheCentUsers {    private Logger logger = LoggerFactory.getLogger(delRedisCacheCentUsers.class);    private static String addr;    private static String username;    private static String pwd;    private static String shellPathByDay;    private static String shellPathByMonth;    /**     * 删除     */    static{        Properties prop = new Properties();        try {            String file = delRedisCacheCentUsers.class.getResource("/jedisPool_Tran.properties").getFile();            InputStream in = new BufferedInputStream(new FileInputStream(file));            prop.load(in);            addr = prop.getProperty("REDIS.HOST");            username = prop.getProperty("REDIS.NAME");            pwd = prop.getProperty("REDIS.PWD");            shellPathByDay = prop.getProperty("shellPathByDay");            shellPathByMonth = prop.getProperty("shellPathByMonth");//            System.out.println("===load "+addr+" "+username+" "+pwd);        }catch (Exception e){            try {                throw new Exception("== load redis prop fail!");            } catch (Exception e1) {                e1.printStackTrace();            }        }    }    /**     * 日定时任务,删除当日缓存     */    public void delCurrentDayCacheUsersByDay(){        JedisPooler jedisPooler = null;        Jedis jedis = null;        try{             jedisPooler = RedisPoolerFactory.getJedisPooler();             jedis = jedisPooler.getJedis();            /**             * 删除缓存的用户对应的积分行为和次数             */            RemoteShellTool tool = new RemoteShellTool(addr, username,                    pwd, "utf-8");            String result = tool.exec(shellPathByDay);//        System.out.println("==result: "+result);            //删除日上线  /usr/bin/redis-cli keys "day_userCentOpers|*" | xargs -i /usr/bin/redis-cli del {}            if (result.toLowerCase().contains("success")){                logger.info("===[DEL USERS SUCCESS]!");            }else{                logger.error("===[DEL USERS FAIL]!");            }        }catch(Exception e){            e.printStackTrace();        }finally {            if (jedis != null){                jedisPooler.returnResource(jedis);            }        }    }    /**     * 月定时任务,删除当月缓存      */    public void delCurrentDayCacheUsersByMonth(){        JedisPooler jedisPooler = null;        Jedis jedis = null;        try{            jedisPooler = RedisPoolerFactory.getJedisPooler();            jedis = jedisPooler.getJedis();            /**             * 删除缓存的用户对应的积分行为和次数             */            RemoteShellTool tool = new RemoteShellTool(addr, username,                    pwd, "utf-8");            String result = tool.exec(shellPathByMonth);//        System.out.println("==result: "+result);            //删除日上线  /usr/bin/redis-cli keys "day_userCentOpers|*" | xargs -i /usr/bin/redis-cli del {}            if (result.toLowerCase().contains("success")){                logger.info("===[DEL USERS SUCCESS BY MONTH]!");            }else{                logger.error("===[DEL MONTH USERS FAIL]!");            }        }catch(Exception e){            e.printStackTrace();        }finally {            if (jedis != null){                jedisPooler.returnResource(jedis);            }        }    }}

在redis的配置文件redis.properties中顺便定义了脚本路径：

shellPathByDay=/usr/local/sbin/delRedisCacheUsersByDay.shshellPathByMonth=/usr/local/sbin/delRedisCacheUsersByMonth.sh

对应脚本命令：

delRedisCacheUsersByDay.sh://删除以  'day_userCentOpers| '为前缀的key-value/usr/bin/redis-cli keys "day_userCentOpers|*" | xargs -i /usr/bin/redis-cli del {}//删除以  'month_userCentOpers| '为前缀的key-valuedelRedisCacheUsersByMonth.sh:/usr/bin/redis-cli keys "month_userCentOpers|*" | xargs -i /usr/bin/redis-cli del {}

这里是定时任务的xml文件，实现调用操作方法：

<!--定时任务1-->    <!-- 每天12点将当天用户积分行为缓存清掉  -->    <bean id="deleteRedisCacheDayUsersJob" class="cn.qtone.xxt.cent.quartz.delRedisCacheCentUsers" />    <bean id="deleteRedisCacheDayUsersTask" class="org.springframework.scheduling.quartz.MethodInvokingJobDetailFactoryBean">        <property name="targetObject" ref="deleteRedisCacheDayUsersJob" />        <property name="targetMethod" value="delCurrentDayCacheUsersByDay" /><!-- 定时执行 doItem 方法 -->        <property name="concurrent" value="false" />    </bean>    <bean id="deleteRedisCacheDayUsersTrigger" class="org.springframework.scheduling.quartz.CronTriggerBean">        <property name="jobDetail" ref="deleteRedisCacheDayUsersTask" />        <property name="cronExpression" value="59 59 23 * * ?" /><!-- 每天凌晨23:59:59 点执行 -->        <!--<property name="cronExpression" value="0 */1 * * * ?" />&lt;!&ndash; 每隔1min执行一次 &ndash;&gt;-->    </bean>    <bean class="org.springframework.scheduling.quartz.SchedulerFactoryBean">        <property name="triggers">            <list>                 <ref bean="deleteRedisCacheDayUsersTrigger" />                <ref bean="deleteRedisCacheMonthUsersTrigger" />                <!--暂时不用-->                 <!--<ref bean="centUpdateByMonthTrigger" />-->            </list>        </property>    </bean>

远程调用shell脚本类：

import java.io.BufferedReader;import java.io.IOException;import java.io.InputStream;import java.io.InputStreamReader;import java.nio.charset.Charset;import ch.ethz.ssh2.Connection;import ch.ethz.ssh2.Session;/** * 远程调用服务器上shell脚本 * Created with CentSystem */public class RemoteShellTool {    private Connection conn;    private String ipAddr;    private String charset = Charset.defaultCharset().toString();    private String userName;    private String password;    public RemoteShellTool(String ipAddr, String userName, String password,                           String charset) {        this.ipAddr = ipAddr;        this.userName = userName;        this.password = password;        if (charset != null) {            this.charset = charset;        }    }    public boolean login() throws IOException {        conn = new Connection(ipAddr);        conn.connect(); // 连接        return conn.authenticateWithPassword(userName, password); // 认证    }    public String exec(String cmds) {        InputStream in = null;        String result = "";        try {            if (this.login()) {                Session session = conn.openSession(); // 打开一个会话                session.execCommand(cmds);                in = session.getStdout();                result = this.processStdout(in, this.charset);                session.close();                conn.close();            }        } catch (IOException e1) {            e1.printStackTrace();        }        return result;    }    public String processStdout(InputStream in, String charset) {        byte[] buf = new byte[1024];        StringBuffer sb = new StringBuffer();        try {            while (in.read(buf) != -1) {                sb.append(new String(buf, charset));            }        } catch (IOException e) {            e.printStackTrace();        }        return sb.toString();    }    /**     * @param args     */    public static void main(String[] args) {        RemoteShellTool tool = new RemoteShellTool("192.168.120.XXX", "ubuntu",                "xxxxx", "utf-8");        String result = tool.exec("/usr/local/sbin/xxx.sh");        System.out.print("===result:"+result);    }