Spring Redis Session example

原创转载请注明出处：http://agilestyle.iteye.com/blog/2384372

 

Project Directory

 

Maven Dependency

<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>org.fool.springredis</groupId>
    <artifactId>spring-redis</artifactId>
    <packaging>war</packaging>
    <version>1.0-SNAPSHOT</version>
    <name>spring-redis Maven Webapp</name>
    <url>http://maven.apache.org</url>

    <dependencies>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context</artifactId>
            <version>4.3.8.RELEASE</version>
        </dependency>

        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-webmvc</artifactId>
            <version>4.3.8.RELEASE</version>
        </dependency>

        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-jdbc</artifactId>
            <version>4.3.8.RELEASE</version>
        </dependency>

        <dependency>
            <groupId>org.springframework.session</groupId>
            <artifactId>spring-session-data-redis</artifactId>
            <version>1.3.1.RELEASE</version>
        </dependency>

        <dependency>
            <groupId>redis.clients</groupId>
            <artifactId>jedis</artifactId>
            <version>2.9.0</version>
        </dependency>

        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis</artifactId>
            <version>3.4.4</version>
        </dependency>

        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis-spring</artifactId>
            <version>1.3.1</version>
        </dependency>

        <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-databind</artifactId>
            <version>2.8.9</version>
        </dependency>

        <dependency>
            <groupId>org.apache.commons</groupId>
            <artifactId>commons-lang3</artifactId>
            <version>3.5</version>
        </dependency>

        <dependency>
            <groupId>commons-dbcp</groupId>
            <artifactId>commons-dbcp</artifactId>
            <version>1.4</version>
        </dependency>

        <dependency>
            <groupId>org.apache.httpcomponents</groupId>
            <artifactId>httpclient</artifactId>
            <version>4.5.3</version>
        </dependency>

        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>javax.servlet-api</artifactId>
            <version>3.1.0</version>
            <scope>provided</scope>
        </dependency>

        <dependency>
            <groupId>javax.servlet.jsp</groupId>
            <artifactId>javax.servlet.jsp-api</artifactId>
            <version>2.3.1</version>
            <scope>provided</scope>
        </dependency>

        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>jstl</artifactId>
            <version>1.2</version>
        </dependency>

        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>5.1.42</version>
        </dependency>

        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.12</version>
            <scope>test</scope>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>3.6.1</version>
                <configuration>
                    <source>1.8</source>
                    <target>1.8</target>
                </configuration>
            </plugin>

            <plugin>
                <groupId>org.apache.tomcat.maven</groupId>
                <artifactId>tomcat7-maven-plugin</artifactId>
                <version>2.2</version>
                <configuration>
                    <port>8080</port>
                    <path>/</path>
                </configuration>
            </plugin>

            <plugin>
                <groupId>org.mybatis.generator</groupId>
                <artifactId>mybatis-generator-maven-plugin</artifactId>
                <version>1.3.5</version>
                <configuration>
                    <verbose>true</verbose>
                    <overwrite>true</overwrite>
                </configuration>
            </plugin>
        </plugins>
    </build>
</project>

 

web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app version="3.0" xmlns="http://java.sun.com/xml/ns/javaee"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd">
    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>/WEB-INF/spring/root-context.xml</param-value>
    </context-param>

    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>

    <servlet>
        <servlet-name>appServlet</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <init-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>/WEB-INF/spring/servlet-context.xml</param-value>
        </init-param>
        <load-on-startup>1</load-on-startup>
    </servlet>
    <servlet-mapping>
        <servlet-name>appServlet</servlet-name>
        <url-pattern>/</url-pattern>
    </servlet-mapping>

    <filter>
        <filter-name>springSessionRepositoryFilter</filter-name>
        <filter-class>org.springframework.web.filter.DelegatingFilterProxy</filter-class>
    </filter>
    <filter-mapping>
        <filter-name>springSessionRepositoryFilter</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>

    <filter>
        <filter-name>CharacterEncodingFilter</filter-name>
        <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
        <init-param>
            <param-name>encoding</param-name>
            <param-value>UTF-8</param-value>
        </init-param>
        <init-param>
            <param-name>forceEncoding</param-name>
            <param-value>true</param-value>
        </init-param>
    </filter>
    <filter-mapping>
        <filter-name>CharacterEncodingFilter</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>

    <session-config>
        <session-timeout>30</session-timeout>
    </session-config>

</web-app>

 

Spring Configuration

root-context.xml

<?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:context="http://www.springframework.org/schema/context" xmlns:tx="http://www.springframework.org/schema/tx"
       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
        http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd
        http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">

    <context:annotation-config/>

    <context:component-scan base-package="org.fool.springredis"/>

    <!-- 连接池配置 -->
    <bean id="jedisPoolConfig" class="redis.clients.jedis.JedisPoolConfig">
        <!-- 最大连接数 -->
        <property name="maxTotal" value="30"/>
        <!-- 最大空闲连接数 -->
        <property name="maxIdle" value="10"/>
        <!-- 每次释放连接的最大数目 -->
        <property name="numTestsPerEvictionRun" value="1024"/>
        <!-- 释放连接的扫描间隔（毫秒） -->
        <property name="timeBetweenEvictionRunsMillis" value="30000"/>
        <!-- 连接最小空闲时间 -->
        <property name="minEvictableIdleTimeMillis" value="1800000"/>
        <!-- 连接空闲多久后释放, 当空闲时间>该值 且 空闲连接>最大空闲连接数 时直接释放 -->
        <property name="softMinEvictableIdleTimeMillis" value="10000"/>
        <!-- 获取连接时的最大等待毫秒数,小于零:阻塞不确定的时间,默认-1 -->
        <property name="maxWaitMillis" value="1500"/>
        <!-- 在获取连接的时候检查有效性, 默认false -->
        <property name="testOnBorrow" value="true"/>
        <!-- 在空闲时检查有效性, 默认false -->
        <property name="testWhileIdle" value="true"/>
        <!-- 连接耗尽时是否阻塞, false报异常, true阻塞直到超时, 默认true -->
        <property name="blockWhenExhausted" value="false"/>
    </bean>

    <!--Spring Session Redis配置-->
    <bean class="org.springframework.session.data.redis.config.annotation.web.http.RedisHttpSessionConfiguration">
        <!-- 过期时间10分钟 -->
        <property name="maxInactiveIntervalInSeconds" value="600"/>
    </bean>

    <bean class="org.springframework.data.redis.connection.jedis.JedisConnectionFactory">
        <property name="hostName" value="192.168.121.128"/>
        <property name="password" value=""/>
        <property name="port" value="6379"/>
        <property name="poolConfig" ref="jedisPoolConfig"/>
    </bean>

    <!--single-->
    <bean id="jedisPool" class="redis.clients.jedis.JedisPool">
        <constructor-arg name="host" value="192.168.121.128"/>
        <constructor-arg name="port" value="6379"/>
        <constructor-arg name="poolConfig" ref="jedisPoolConfig"/>
    </bean>

    <bean id="jedisClient" class="org.fool.springredis.dao.impl.JedisClientSingle"/>

    <!--cluster-->
    <!--<bean id="jedisCluster" class="redis.clients.jedis.JedisCluster">-->
        <!--<constructor-arg>-->
            <!--<set>-->
                <!--<bean class="redis.clients.jedis.HostAndPort">-->
                    <!--<constructor-arg name="host" value="192.168.121.128"/>-->
                    <!--<constructor-arg name="port" value="7001"/>-->
                <!--</bean>-->
                <!--<bean class="redis.clients.jedis.HostAndPort">-->
                    <!--<constructor-arg name="host" value="192.168.121.128"/>-->
                    <!--<constructor-arg name="port" value="7002"/>-->
                <!--</bean>-->
                <!--<bean class="redis.clients.jedis.HostAndPort">-->
                    <!--<constructor-arg name="host" value="192.168.121.128"/>-->
                    <!--<constructor-arg name="port" value="7003"/>-->
                <!--</bean>-->
                <!--<bean class="redis.clients.jedis.HostAndPort">-->
                    <!--<constructor-arg name="host" value="192.168.121.128"/>-->
                    <!--<constructor-arg name="port" value="7004"/>-->
                <!--</bean>-->
                <!--<bean class="redis.clients.jedis.HostAndPort">-->
                    <!--<constructor-arg name="host" value="192.168.121.128"/>-->
                    <!--<constructor-arg name="port" value="7005"/>-->
                <!--</bean>-->
                <!--<bean class="redis.clients.jedis.HostAndPort">-->
                    <!--<constructor-arg name="host" value="192.168.121.128"/>-->
                    <!--<constructor-arg name="port" value="7006"/>-->
                <!--</bean>-->
            <!--</set>-->
        <!--</constructor-arg>-->
        <!--<constructor-arg name="poolConfig" ref="jedisPoolConfig"/>-->
    <!--</bean>-->

    <!--<bean id="jedisClientCluster" class="org.fool.springredis.dao.impl.JedisClientCluster"/>-->

</beans>

 

servlet-context.xml

<?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:context="http://www.springframework.org/schema/context"
       xmlns:mvc="http://www.springframework.org/schema/mvc"
       xsi:schemaLocation="http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd
        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">

    <mvc:annotation-driven/>

    <mvc:resources location="/resources/" mapping="/resources/**"/>

    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="prefix" value="/WEB-INF/views/"/>
        <property name="suffix" value=".jsp"/>
    </bean>

    <context:component-scan base-package="org.fool.springredis"/>
</beans>

 

Java Classes

User.java

package org.fool.springredis.model;

import org.apache.commons.lang3.builder.ToStringBuilder;
import org.apache.commons.lang3.builder.ToStringStyle;

public class User {
    private String username;
    private String password;

    public User() {

    }

    public User(String username, String password) {
        this.username = username;
        this.password = password;
    }

    public String getUsername() {
        return username;
    }

    public void setUsername(String username) {
        this.username = username;
    }

    public String getPassword() {
        return password;
    }

    public void setPassword(String password) {
        this.password = password;
    }

    @Override
    public String toString() {
        return ToStringBuilder.reflectionToString(this, ToStringStyle.SHORT_PREFIX_STYLE);
    }
}

 

JsonUtil.java

package org.fool.springredis.util;

import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.JavaType;
import com.fasterxml.jackson.databind.ObjectMapper;

import java.util.List;
import java.util.Map;

public class JsonUtil {
    private static final ObjectMapper MAPPER = new ObjectMapper();

    public static String objectToJson(Object data) {
        try {
            String string = MAPPER.writeValueAsString(data);
            return string;
        } catch (JsonProcessingException e) {
            e.printStackTrace();
        }
        return null;
    }

    public static <T> T jsonToPojo(String jsonData, Class<T> beanType) {
        try {
            T t = MAPPER.readValue(jsonData, beanType);
            return t;
        } catch (Exception e) {
            e.printStackTrace();
        }

        return null;
    }

    public static <T> List<T> jsonToList(String jsonData, Class<T> beanType) {
        JavaType javaType = MAPPER.getTypeFactory().constructParametricType(List.class, beanType);

        try {
            List<T> list = MAPPER.readValue(jsonData, javaType);
            return list;
        } catch (Exception e) {
            e.printStackTrace();
        }

        return null;
    }

    public static <K, V> Map<K, V> jsonToMap(String jsonData, Class<K> keyType, Class<V> valueType) {
        JavaType javaType = MAPPER.getTypeFactory().constructMapType(Map.class, keyType, valueType);

        try {
            Map<K, V> map = MAPPER.readValue(jsonData, javaType);
            return map;
        } catch (Exception e) {
            e.printStackTrace();
        }

        return null;
    }
}

 

JedisClient.java

package org.fool.springredis.dao;

public interface JedisClient {
    String get(String key);

    String set(String key, String value);

    String hget(String hkey, String key);

    long hset(String hkey, String key, String value);

    long incr(String key);

    long expire(String key, int second);

    long ttl(String key);

    long del(String key);

    long hdel(String hkey, String key);
}

 

JedisClientSingle.java

package org.fool.springredis.dao.impl;

import org.fool.springredis.dao.JedisClient;
import org.springframework.beans.factory.annotation.Autowired;
import redis.clients.jedis.Jedis;
import redis.clients.jedis.JedisPool;

public class JedisClientSingle implements JedisClient {
    @Autowired
    private JedisPool jedisPool;

    @Override
    public String get(String key) {
        Jedis jedis = jedisPool.getResource();
        String result = jedis.get(key);
        jedis.close();

        return result;
    }

    @Override
    public String set(String key, String value) {
        Jedis jedis = jedisPool.getResource();
        String result = jedis.set(key, value);
        jedis.close();

        return result;
    }

    @Override
    public String hget(String hkey, String key) {
        Jedis jedis = jedisPool.getResource();
        String result = jedis.hget(hkey, key);
        jedis.close();

        return result;
    }

    @Override
    public long hset(String hkey, String key, String value) {
        Jedis jedis = jedisPool.getResource();
        long result = jedis.hset(hkey, key, value);
        jedis.close();

        return result;
    }

    @Override
    public long incr(String key) {
        Jedis jedis = jedisPool.getResource();
        long result = jedis.incr(key);
        jedis.close();

        return result;
    }

    @Override
    public long expire(String key, int second) {
        Jedis jedis = jedisPool.getResource();
        long result = jedis.expire(key, second);
        jedis.close();

        return result;
    }

    @Override
    public long ttl(String key) {
        Jedis jedis = jedisPool.getResource();
        long result = jedis.ttl(key);
        jedis.close();

        return result;
    }

    @Override
    public long del(String key) {
        Jedis jedis = jedisPool.getResource();
        long result = jedis.del(key);
        jedis.close();

        return result;
    }

    @Override
    public long hdel(String hkey, String key) {
        Jedis jedis = jedisPool.getResource();
        long result = jedis.hdel(hkey, key);
        jedis.close();

        return result;
    }
}

 

JedisClientCluster.java

package org.fool.springredis.dao.impl;

import org.fool.springredis.dao.JedisClient;
import org.springframework.beans.factory.annotation.Autowired;
import redis.clients.jedis.JedisCluster;

public class JedisClientCluster implements JedisClient {
    @Autowired
    private JedisCluster jedisCluster;

    @Override
    public String get(String key) {
        return jedisCluster.get(key);
    }

    @Override
    public String set(String key, String value) {
        return jedisCluster.set(key, value);
    }

    @Override
    public String hget(String hkey, String key) {
        return jedisCluster.hget(hkey, key);
    }

    @Override
    public long hset(String hkey, String key, String value) {
        return jedisCluster.hset(hkey, key, value);
    }

    @Override
    public long incr(String key) {
        return jedisCluster.incr(key);
    }

    @Override
    public long expire(String key, int second) {
        return jedisCluster.expire(key, second);
    }

    @Override
    public long ttl(String key) {
        return jedisCluster.ttl(key);
    }

    @Override
    public long del(String key) {
        return jedisCluster.del(key);
    }

    @Override
    public long hdel(String hkey, String key) {
        return jedisCluster.hdel(hkey, key);
    }
}

 

IndexController.java

package org.fool.springredis.controller;

import org.apache.commons.lang3.StringUtils;
import org.fool.springredis.model.User;
import org.fool.springredis.util.JsonUtil;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;

import javax.servlet.http.HttpServletRequest;

@Controller
public class IndexController {
    @GetMapping("/login")
    public String login() {
        return "login";
    }

    @PostMapping("/login")
    public String login(HttpServletRequest request) {
        String username = request.getParameter("username");
        String password = request.getParameter("password");

        request.getSession().setAttribute("user", JsonUtil.objectToJson(new User(username, password)));

        return "redirect:/index";
    }

    @GetMapping("/index")
    public String index(HttpServletRequest request, Model model) {
        String userJsonStr = (String) request.getSession().getAttribute("user");

        User user = null;

        if (StringUtils.isNotBlank(userJsonStr)) {
            user = JsonUtil.jsonToPojo(userJsonStr, User.class);
        }

        model.addAttribute("user", user);

        return "index";
    }
}

 

JSP Pages

login.jsp

<html>
<head>
    <title>login</title>
</head>
<body>
    <h2>login page</h2>
<form action="/login" method="post">
    username:<input type="text" name="username"><br>
    password:<input type="password" name="password"><br>
    <input type="submit" value="login">
</form>
</body>
</html>

 

index.jsp

<html>
<body>
<h2>Hello Spring Redis!</h2>
<p>${user.username}</p>
<p>${user.password}</p>
</body>
</html>

 

Test

查看Redis

 

登录login页面

 

再次查看Redis

 

输入username和password，点击login按钮

再次查看Redis

 

不在页面上做任何操作，静静等待10分钟（本例中Spring Redis Session设置过期时间为600，即10分钟）

 

再次访问index页面

Reference

http://www.infoq.com/cn/articles/Next-Generation-Session-Management-with-Spring-Session/