tomcat+redis实现session共享配置之路支持Tomcat 8

灰太狼 2022-06-05 08:20 155阅读 0赞

1、网上查找资料，大部分从下面网址下载java代码，因是几年前实现的（大概2,3年前吧），不支持tomcat8   
[https://github.com/jcoleman/tomcat-redis-session-manager][https_github.com_jcoleman_tomcat-redis-session-manager]

2、在myeclipse 新建一个maven项目【maven-archetype-quickstart】   
源文件新建包名com.orangefunction.tomcat.redissessions   
讲下载下来的java类拷贝到该包之下（这些java类只实现tomcat7，实现tomcat8需要做一些修改）   
JavaSerializer.java   
RedisSession.java   
RedisSessionHandlerValve.java   
RedisSessionManager.java   
Serializer.java   
SessionSerializationMetadata.java

![tomcat7与tomcat8代码差异对比][tomcat7_tomcat8]

3、tomcat8与tomcat7 有些实现代码不一样，需各自新建一个maven项目要各自打包，注意tomcat引得版本与jdk要保持一致   
![pom打包注意点][pom]

====tomcat8 maven pom.xml====

<dependencies>
        <dependency>
            <groupId>org.apache.tomcat</groupId>
            <artifactId>tomcat-catalina</artifactId>
            <version>8.0.33</version>
        </dependency>
          <dependency>
            <groupId>redis.clients</groupId>
            <artifactId>jedis</artifactId>
            <version>2.7.2</version>
        </dependency>
      </dependencies>
    
      <build>
        <plugins>
            <plugin> 
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>3.0</version>
                <configuration>
                    
                    <source>1.8</source>
                    
                    <target>1.8</target>
                    
                    <encoding>UTF-8</encoding>
                </configuration>
            </plugin>
        </plugins>
      </build>
     
      
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====tomcat7 maven pom.xml====

<dependencies>
      
          <dependency>
            <groupId>org.apache.tomcat</groupId>
            <artifactId>tomcat-catalina</artifactId>
            <version>7.0.27</version>
        </dependency>
          <dependency>
            <groupId>redis.clients</groupId>
            <artifactId>jedis</artifactId>
            <version>2.7.2</version>
        </dependency>
    
      </dependencies>
    
      <build>
        <plugins>
            <plugin> 
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>3.0</version>
                <configuration>
                    
                    <source>1.7</source>
                    
                    <target>1.7</target>
                    
                    <encoding>UTF-8</encoding>
                </configuration>
            </plugin>
        </plugins>
    </build>
     
      
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将打包出来的tomcat-redis的jar包和   
jedis-2.7.2.jar   
commons-pool2-2.3.jar   
拷贝到tomcat的lib文件夹下面

4、tomcat配置   
====tomcat context.xml====

<Valve className="com.orangefunction.tomcat.redissessions.RedisSessionHandlerValve" />  
    <Manager className="com.orangefunction.tomcat.redissessions.RedisSessionManager" host="127.0.0.1" port="6379" database="0" maxInactiveInterval="60" />
    
    
    
    <Valve className="com.orangefunction.tomcat.redissessions.RedisSessionHandlerValve" />        
    <Manager className="com.orangefunction.tomcat.redissessions.RedisSessionManager" maxInactiveInterval="60" sentinelMaster="mymaster" sentinels="127.0.0.1:26379,127.0.0.1:26380,127.0.0.1:26381,127.0.0.1:26382" />
     
      
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5、需要特别注意的是项目中要存入session的对象必须实现序列化，否知会出现序列化错误

public class Test implements Serializable { 
        private static final long serialVersionUID = 5021582410009851677L;
        ......
    }
     
      
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--------------------

配置截图：

![tomcat lib][]

![tomcat context.xml 配置][tomcat context.xml]

![tomcat配置与java源码对应][tomcat_java]

![配置实现redis包名路径的对应][redis]

--------------------

参考网址：

redis + Tomcat 8 的session共享解决   
[http://www.cnblogs.com/interdrp/p/4868740.html][http_www.cnblogs.com_interdrp_p_4868740.html]

Tomcat7+Redis存储Session   
[http://blog.csdn.net/caiwenfeng\_for\_23/article/details/45666831][http_blog.csdn.net_caiwenfeng_for_23_article_details_45666831]

用Redis存储Tomcat集群的Session   
[http://blog.csdn.net/chszs/article/details/42610365][http_blog.csdn.net_chszs_article_details_42610365]

分布式集群系统下的高可用session解决方案   
[http://tendyming.iteye.com/blog/1815136][http_tendyming.iteye.com_blog_1815136]

[https_github.com_jcoleman_tomcat-redis-session-manager]: https://github.com/jcoleman/tomcat-redis-session-manager
[tomcat7_tomcat8]: /images/20220605/0bc558b18bce4d66968bfe7829cd645b.png
[pom]: /images/20220605/7f17cf077f6e46bd89cb2a30e9fb632d.png
[tomcat lib]: /images/20220605/26148100035343cda5120b0e28b9c540.png
[tomcat context.xml]: /images/20220605/d6afb05c357242e0aa43efa9617f808b.png
[tomcat_java]: /images/20220605/0e0ba894de014c74bbcc916a17170ed8.png
[redis]: /images/20220605/96f77d5bad704ae396f9ef4ddc6143b6.png
[http_www.cnblogs.com_interdrp_p_4868740.html]: http://www.cnblogs.com/interdrp/p/4868740.html
[http_blog.csdn.net_caiwenfeng_for_23_article_details_45666831]: http://blog.csdn.net/caiwenfeng_for_23/article/details/45666831
[http_blog.csdn.net_chszs_article_details_42610365]: http://blog.csdn.net/chszs/article/details/42610365
[http_tendyming.iteye.com_blog_1815136]: http://tendyming.iteye.com/blog/1815136