redisDao封装类-其他dao集成他
package com.ffcs.wlan.dao.common;
import javax.annotation.Resource;
import org.springframework.data.redis.core.StringRedisTemplate;
/**
* AbstractBaseRedisDao
* @author hugsh
* @version <b>1.0</b>
*/
public abstract class AbstractBaseRedisDao<K, V> {
@Resource
protected StringRedisTemplate redisTemplate;
public void setRedisTemplate(StringRedisTemplate redisTemplate) {
this.redisTemplate = redisTemplate;
}
}
批量插入（不关注返回值）
@Repository
public class RedisInitDao extends AbstractBaseRedisDao<String, Object> {
Logger logger=Logger.getLogger(RedisInitDao.class);
/**
* 批量向redis中插入H码:key(tableName:hcode) value(pcode)
* 如果键已存在则返回false,不更新,防止覆盖。使用pipeline批处理方式(不关注返回值)
* @param list 一个map代表一行记录,2个key:hcode & pcode。
* @param tableName redis中key的值为tableName:hcode 对应value值为pcode。
* @return
*/
public boolean addHcode(final List<Map<String, Object>> list,final String tableName) {
boolean result = redisTemplate.execute(new RedisCallback<Boolean>() {
public Boolean doInRedis(RedisConnection connection)
throws DataAccessException {
RedisSerializer<String> serializer = redisTemplate.getStringSerializer();
for (Map<String, Object> map : list) {
byte[] key = serializer.serialize(tableName+":"+map.get("hcode").toString());
byte[] name = serializer.serialize(map.get("pcode").toString());
connection.setNX(key, name);
}
return true;
}
}, false, true);
return result;
}
批量获取（有返回值）
/**
* 从redis中获取(获取密码日志) rPop从链表尾部弹出(最早的日志)
* 多线程并发读取日志长度的时候，比如都得到结果是1000条。
* 当多线程每个都 循环1000次 pop弹出 日志的时候，
* 由于是多线程一起pop，所以每个线程获得的数组中都会包含 null 甚至有的全是null
* @return
*/
public List<String> getLogFromRedis() {
final RedisSerializer<String> serializer = redisTemplate.getStringSerializer();
//密码日志的长度
final Long pwdLogSize=redisTemplate.opsForList().size("getpwdList");
List<Object> pwdLogList=redisTemplate.executePipelined(new RedisCallback<String>() {
@Override
public String doInRedis(RedisConnection conn)
throws DataAccessException {
for (int i=0 ;i<pwdLogSize ;i++) {
byte[] listName = serializer.serialize("getpwdList");
conn.rPop(listName);
}
return null;
}
}, serializer);
// 去除结果中的null
ArrayList<String> newList=new ArrayList<String>();
for (Object o : pwdLogList) {
if(o!=null)
newList.add(String.valueOf(o));
}
return newList;
}
基础数据类型工具类(opsForList)
/**
* 向redis中插入获取密码日志:leftPush 从链表头部压入
* @param pwdLog 获取密码的日志
* @return
*/
public void addLogIntoRedis(final String pwdLog) {
log.info("insert getpwd log into redis:"+pwdLog);
try {
redisTemplate.opsForList().leftPush("getpwdList", pwdLog);
} catch (Exception e) {
log.error(e.getMessage());
}
}
配置文件
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:p="http://www.springframework.org/schema/p"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:aop="http://www.springframework.org/schema/aop"
xsi:schemaLocation="
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">
<bean id="poolConfig" class="redis.clients.jedis.JedisPoolConfig">
<property name="maxTotal" value="${redis.maxTotal}"></property>
<property name="maxIdle" value="${redis.maxIdle}" />
<property name="maxWaitMillis" value="${redis.maxWait}" />
<property name="testOnBorrow" value="${redis.testOnBorrow}" />
</bean>
<bean id="connectionFactory" class="org.springframework.data.redis.connection.jedis.JedisConnectionFactory"
p:host-name="${redis.host}" p:port="${redis.port}" p:pool-config-ref="poolConfig"/>
<bean id="redisTemplate" class="org.springframework.data.redis.core.StringRedisTemplate">
<property name="connectionFactory" ref="connectionFactory" />
</bean>
</beans>
<!-- 引入项目配置文件 -->
<bean class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
<property name="locations">
<list>
<value>classpath:redis.properties</value><!-- 引入redis配置文件 -->
<value>classpath:jdbc.properties</value><!-- 定义spring-jdbc配置信息路径 -->
</list>
</property>
</bean>
<!-- 自动扫描model,dao和service包(自动注入) -->
<context:component-scan base-package="com.ffcs.wlan.model,com.ffcs.wlan.dao,com.ffcs.wlan.service" />
属性文件
# Redis settings
redis.host=192.168.11.100
redis.port=6379
#redis.pass=hugsh
redis.maxIdle=25
redis.maxTotal=250
#redis.maxActive=600 invalid in2.4
redis.maxWait=1000
