使用spring-session把http session放到redis里面

一：

新建maven的webapp項目，加入spring session的相關依賴

pom.xml 如下：

<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/maven-v4_0_0.xsd">

    <modelVersion>4.0.0</modelVersion>
    <groupId>com.lala</groupId>
    <artifactId>leshop</artifactId>
    <packaging>war</packaging>
    <version>0.0.1-SNAPSHOT</version>

    <name>taobao Maven Webapp</name>
    <url>http://maven.apache.org</url>

    <dependencies>
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.10</version>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>jsp-api</artifactId>
            <version>2.0</version>
            <scope>provided</scope>
        </dependency>

        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>javax.servlet-api</artifactId>
            <version>3.0.1</version>
            <scope>provided</scope>
        </dependency>
        <dependency>
            <groupId>org.springframework.session</groupId>
            <artifactId>spring-session-data-redis</artifactId>
            <version>1.0.1.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-web</artifactId>
            <version>4.1.6.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.session</groupId>
            <artifactId>spring-session</artifactId>
            <version>1.0.1.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>com.orange.redis-embedded</groupId>
            <artifactId>embedded-redis</artifactId>
            <version>0.6</version>
        </dependency>
    </dependencies>
    <build>
        <finalName>leshop</finalName>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>3.3</version>
                <configuration>
                    <source>1.8</source>
                    <target>1.8</target>
                    <verbose>true</verbose>
                </configuration>
            </plugin>
        </plugins>
    </build>
</project>

二：

配置redis環境

1：安裝redis，啟動

2：

package com.lala.config;

import org.springframework.context.annotation.Bean;
import org.springframework.data.redis.connection.jedis.JedisConnectionFactory;
import org.springframework.session.data.redis.config.annotation.web.http.EnableRedisHttpSession;

@EnableRedisHttpSession
public class SessionConfig 
{
    @Bean
    public JedisConnectionFactory connectionFactory()
    {
        JedisConnectionFactory connection = new JedisConnectionFactory();
        connection.setPort(6379);
        connection.setHostName("192.168.1.106");
        return connection;
    }
}

package com.lala.config;

import org.springframework.session.web.context.AbstractHttpSessionApplicationInitializer;

public class SessionInitializer extends AbstractHttpSessionApplicationInitializer 
{
    public SessionInitializer() 
    {
        super(SessionConfig.class);
    }
}

三：

最后，在servlet或者action里面

Integer uid = Integer.valueOf(req.getParameter("uid"));
req.getSession().setAttribute("user", new User(uid, "張三", "這里是redis的"));

這種做法，不需要依賴具體的容器。放到任何容器里面都可以使用。

不像網上的做法，使用其他的jar,還需要配置tomcat。這種做法，不支持其他的web server