redisTemplate 操作及相关配置

Posted 2021-03-18 那些年的代码

redisDao封装类-其他dao集成他

1. package com.ffcs.wlan.dao.common;
2. import javax.annotation.Resource;
3. import org.springframework.data.redis.core.StringRedisTemplate;
4.  
5. /**
6. * AbstractBaseRedisDao
7. * @author hugsh
8. * @version <b>1.0</b>
9. */
10. public abstract class AbstractBaseRedisDao<K, V> {
11.  
12. @Resource
13. protected StringRedisTemplate redisTemplate;
14.  
15. public void setRedisTemplate(StringRedisTemplate redisTemplate) {
16. this.redisTemplate = redisTemplate;
17. }
18. }

 批量插入（不关注返回值）

1. @Repository
2. public class RedisInitDao extends AbstractBaseRedisDao<String, Object> {
3.  
4. Logger logger=Logger.getLogger(RedisInitDao.class);
5.  
6. /**
7. * 批量向redis中插入H码:key(tableName:hcode) value(pcode)
8. * 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)
9. * @param list 一个map代表一行记录,2个key:hcode & pcode。
10. * @param tableName redis中key的值为tableName:hcode 对应value值为pcode。
11. * @return
12. */
13. public boolean addHcode(final List<Map<String, Object>> list,final String tableName) {
14. boolean result = redisTemplate.execute(new RedisCallback<Boolean>() {
15. public Boolean doInRedis(RedisConnection connection)
16. throws DataAccessException {
17. RedisSerializer<String> serializer = redisTemplate.getStringSerializer();
18. for (Map<String, Object> map : list) {
19. byte[] key = serializer.serialize(tableName+":"+map.get("hcode").toString());
20. byte[] name = serializer.serialize(map.get("pcode").toString());
21. connection.setNX(key, name);
22. }
23. return true;
24. }
25. }, false, true);
26. return result;
27. }

批量获取（有返回值）

1. /**
2. * 从redis中获取(获取密码日志) rPop从链表尾部弹出(最早的日志)
3. * 多线程并发读取日志长度的时候，比如都得到结果是1000条。
4. * 当多线程每个都 循环1000次 pop弹出 日志的时候，
5. * 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
6. * @return
7. */
8. public List<String> getLogFromRedis() {
9.  
10. final RedisSerializer<String> serializer = redisTemplate.getStringSerializer();
11. //密码日志的长度
12. final Long pwdLogSize=redisTemplate.opsForList().size("getpwdList");
13.  
14. List<Object> pwdLogList=redisTemplate.executePipelined(new RedisCallback<String>() {
15. @Override
16. public String doInRedis(RedisConnection conn)
17. throws DataAccessException {
18. for (int i=0 ;i<pwdLogSize ;i++) {
19. byte[] listName = serializer.serialize("getpwdList");
20. conn.rPop(listName);
21. }
22. return null;
23. }
24. }, serializer);
25.  
26. // 去除结果中的null
27. ArrayList<String> newList=new ArrayList<String>();
28. for (Object o : pwdLogList) {
29. if(o!=null)
30. newList.add(String.valueOf(o));
31. }
32. return newList;
33. }

基础数据类型工具类(opsForList)

1. /**
2. * 向redis中插入获取密码日志:leftPush 从链表头部压入
3. * @param pwdLog 获取密码的日志
4. * @return
5. */
6. public void addLogIntoRedis(final String pwdLog) {
7. log.info("insert getpwd log into redis:"+pwdLog);
8. try {
9. redisTemplate.opsForList().leftPush("getpwdList", pwdLog);
10. } catch (Exception e) {
11. log.error(e.getMessage());
12. }
13. }

配置文件

1. <?xml version="1.0" encoding="UTF-8"?>
2. <beans xmlns="http://www.springframework.org/schema/beans"
3. xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
4. xmlns:p="http://www.springframework.org/schema/p"
5. xmlns:context="http://www.springframework.org/schema/context"
6. xmlns:tx="http://www.springframework.org/schema/tx"
7. xmlns:aop="http://www.springframework.org/schema/aop"
8. xsi:schemaLocation="
9. http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
10. http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">
11.  
12.  
13. <bean id="poolConfig" class="redis.clients.jedis.JedisPoolConfig">
14. <property name="maxTotal" value="${redis.maxTotal}"></property>
15. <property name="maxIdle" value="${redis.maxIdle}" />
16. <property name="maxWaitMillis" value="${redis.maxWait}" />
17. <property name="testOnBorrow" value="${redis.testOnBorrow}" />
18. </bean>
19.  
20.  
21. <bean id="connectionFactory" class="org.springframework.data.redis.connection.jedis.JedisConnectionFactory"
22. p:host-name="${redis.host}" p:port="${redis.port}" p:pool-config-ref="poolConfig"/>
23.  
24. <bean id="redisTemplate" class="org.springframework.data.redis.core.StringRedisTemplate">
25. <property name="connectionFactory" ref="connectionFactory" />
26. </bean>
27.  
28. </beans>

 

1. <!-- 引入项目配置文件 -->
2. <bean class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
3. <property name="locations">
4. <list>
5. <value>classpath:redis.properties</value><!-- 引入redis配置文件 -->
6. <value>classpath:jdbc.properties</value><!-- 定义spring-jdbc配置信息路径 -->
7. </list>
8. </property>
9. </bean>
10.  
11.  
12. <!-- 自动扫描model,dao和service包(自动注入) -->
13. <context:component-scan base-package="com.ffcs.wlan.model,com.ffcs.wlan.dao,com.ffcs.wlan.service" />

属性文件

1. # Redis settings
2. redis.host=192.168.11.100
3. redis.port=6379
4. #redis.pass=hugsh
5. redis.maxIdle=25
6. redis.maxTotal=250
7. #redis.maxActive=600 invalid in2.4
8. redis.maxWait=1000
9.