spring整合redis简单demo

末蓝、 2022-07-24 11:23 231阅读 0赞

这里利用spring-data-redis整合redis

1.首先是项目结构

![这里写图片描述][20160521224716989]

2.配置所需依赖

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
      <modelVersion>4.0.0</modelVersion>
    
      <groupId>com.example</groupId>
      <artifactId>redis</artifactId>
      <version>0.0.1-SNAPSHOT</version>
      <packaging>jar</packaging>
    
      <name>redis</name>
      <url>http://maven.apache.org</url>
    
      <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
      </properties>
    
      <dependencies>
        <dependency>
          <groupId>junit</groupId>
          <artifactId>junit</artifactId>
          <version>4.12</version>
          <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>org.springframework.data</groupId>
            <artifactId>spring-data-redis</artifactId>
            <version>1.7.1.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>redis.clients</groupId>
            <artifactId>jedis</artifactId>
            <version>2.8.0</version>
        </dependency>
      </dependencies>
    </project>

3.配置redis链接

<?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" 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 ">
    
        <context:component-scan base-package="com.example.redis.dao" />
        <context:property-placeholder location="classpath:application.properties" />
    
        
        <bean id="jpoolConfig" class="redis.clients.jedis.JedisPoolConfig" p:maxIdle="${redis.maxIdle}" p:maxWaitMillis="${redis.maxWait}" p:testOnBorrow="${redis.testOnBorrow}" />
    
        
        <bean id="jconnectionFactory" class="org.springframework.data.redis.connection.jedis.JedisConnectionFactory" p:hostName="${redis.host}" p:port="${redis.port}" p:poolConfig-ref="jpoolConfig" p:password="${redis.pass}"/>
    
        
        <bean id="redisTemplate" class="org.springframework.data.redis.core.RedisTemplate" p:connectionFactory-ref="jconnectionFactory">
        </bean>
    
    </beans>

5.我的配置文件application.properties

#链接配置
    redis.host=192.168.0.104
    redis.port=6379
    redis.pass=123
    
    #连接池配置
    redis.maxIdle=300
    redis.maxWait=1000
    redis.testOnBorrow=true

6.写dao类型，使用redisTemplate模版类

@Repository
    public class UserDao { 
    
        @Autowired
        protected RedisTemplate<Serializable, Serializable> redisTemplate;
    
        public void saveUser(final User user) {
            redisTemplate.execute(new RedisCallback<Object>() {
    
                public Object doInRedis(RedisConnection connection) throws DataAccessException {
    
                    connection.set(redisTemplate.getStringSerializer().serialize(user.getId() + ""),
                            redisTemplate.getStringSerializer().serialize(user.getName()));
    
                    return null;
                }
    
            });
        }
    
        public User getUser(final long id) {
            return redisTemplate.execute(new RedisCallback<User>() {
    
                public User doInRedis(RedisConnection connection) throws DataAccessException {
                    byte[] key = redisTemplate.getStringSerializer().serialize(id + "");
                    if (connection.exists(key)) {
                        byte[] value = connection.get(key);
                        String name = redisTemplate.getStringSerializer().deserialize(value);
                        User user = new User();
                        user.setName(name);
                        user.setId(id);
                        return user;
                    }
                    return null;
                }
    
            });
        }
    
    }

7.开始测试redis

public class App 
    {
        @SuppressWarnings("resource")
        public static void main( String[] args )
        {
            ApplicationContext ac =  new ClassPathXmlApplicationContext("classpath:/applicationContext.xml");
            UserDao userDAO = (UserDao)ac.getBean("userDao");
            User user = new User();
            user.setId(1);
            user.setName("liuxg");
            userDAO.saveUser(user);
    
            User liuxg = userDAO.getUser(1);
            System.out.println(liuxg.getName());
        }
    }

测试过程中，若出现下面问题

1.Could not get a resource from the pool, Connection refused: connect  
2.DENIED Redis is running in protected mode because protected mode is enabled…

参考[http://blog.csdn.net/yingxiake/article/details/51472810][http_blog.csdn.net_yingxiake_article_details_51472810]  
demo地址[https://github.com/liuxg2013/spring-redis-.git][https_github.com_liuxg2013_spring-redis-.git]

[20160521224716989]: /images/20220722/5aebd21b7aea4ff89bf112075d252968.png
[http_blog.csdn.net_yingxiake_article_details_51472810]: http://blog.csdn.net/yingxiake/article/details/51472810
[https_github.com_liuxg2013_spring-redis-.git]: https://github.com/liuxg2013/spring-redis-.git