【電商】nginx+redis+tomcat實現session共用叢集

最後更新：2015-08-11 來源：互聯網

上載者：User

創建阿里雲帳戶，並獲得超過 40 款產品的免費試用版；而企業帳戶則可以享有總值 $1200 的免費試用版。立即註冊！

標籤：

本文記錄nginx+redis+tomcat實現session共用的過程

tomcat-redis-session-manager組件:https://github.com/jcoleman/tomcat-redis-session-manager

tomcat-redis-sessoin-manager對tomcat的支援:

(1) tomcat6:支援，要求jdk為1.6, 需要引入tomcat-redis-session-manager-1.2-tomcat-6.jar，不過現在已經處理不維護的狀態

(2) tomcat7:支援，jdk可以是1.6或1.7,需要引入tomcat-redis-session-manager-1.2-tomcat-7.jar; 如果引入的是tomcat-redis-session-manager-1.2-tomcat-7-java-7.jar則僅支援JDK1.7

(3) tomcat8:目前不支援，可以嘗試一下https://github.com/chexagon/redis-session-manager(未實際驗證)

組件下載:https://github.com/jcoleman/tomcat-redis-session-manager/downloads

使用組件版本

nginx:1.8.0

tomcat兩個:6.0.44

redis:2.4.10

JDK:1.6.0_34

（1）將下面所有依賴的這些jar包放在$TOMCAT_HOME/lib中:

jedis-2.0.0.jar tomcat-redis-session-manager-1.2-tomcat-6.jar commons-pool-1.5.5.jar

（2）兩個tomcat分別配置conf/context.xml，增加：

Xml代碼

<Valve className="com.radiadesign.catalina.session.RedisSessionHandlerValve" />
<Manager className="com.radiadesign.catalina.session.RedisSessionManager"
host="localhost"
port="6379"
database="0"
maxInactiveInterval="60" />

<Valve className="com.radiadesign.catalina.session.RedisSessionHandlerValve" /><Manager className="com.radiadesign.catalina.session.RedisSessionManager"         host="localhost"          port="6379"         database="0"          maxInactiveInterval="60" />

另外，分別配置兩個tomcat的HTTP監聽連接埠為6181和6182

(3) nginx配置：

Java代碼

upstream cluster_redis {
server localhost:6181;
server localhost:6182;
}
server {
listen 6180;
server_name localhost;
location / {
proxy_pass http://cluster_memcached;
}
}

upstream cluster_redis {          server localhost:6181;          server localhost:6182;     }     server {         listen 6180;         server_name localhost;         location / {           proxy_pass http://cluster_memcached;         }     }

這裡配置nginx監聽連接埠為6180，並請所有的請求反向 Proxy到6181和6182的tomcat叢集.

（4）測試代碼session.jsp：

Jsp代碼

<%@ page import="java.util.Enumeration" %>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
<title>session test</title>
<%
String key = request.getParameter("sessionKey");
String value = request.getParameter("sessionValue");
if(key != null && !"".equalsIgnoreCase(key.trim())) {
session.setAttribute(key, value);
}
%>
</head>
<body>
<form action="session.jsp" method="post">
<input type="text" name="sessionKey" value="key1"><input type="text" name="sessionValue" value="value1">
<input type="submit" value="提交">
</form>
<h4>已經儲存的session--<%=session.getServletContext().getRealPath("/")%></h4>
<table>
<tr>
<th>key</th>
<th>value</th>
</tr>
<%
Enumeration<String> keys = session.getAttributeNames();
while(keys.hasMoreElements()){
String k = keys.nextElement();
String v = (String)session.getAttribute(k);
%>
<tr>
<td><%=k%></td>
<td><%=v%></td>
</tr>
<%
}
%>
</table>
</body>
</html>

<%@ page import="java.util.Enumeration" %>  <%@ page contentType="text/html;charset=UTF-8" language="java" %>  <html>  <head>      <title>session test</title>    <%      String key = request.getParameter("sessionKey");      String value = request.getParameter("sessionValue");      if(key != null && !"".equalsIgnoreCase(key.trim())) {        session.setAttribute(key, value);      }    %>  </head>  <body>  <form action="session.jsp" method="post">  <input type="text" name="sessionKey" value="key1"><input type="text" name="sessionValue" value="value1">  <input type="submit" value="提交">  </form>  <h4>已經儲存的session--<%=session.getServletContext().getRealPath("/")%></h4>  <table>    <tr>    <th>key</th>    <th>value</th>    </tr>    <%    Enumeration<String> keys = session.getAttributeNames();      while(keys.hasMoreElements()){        String k = keys.nextElement();        String v = (String)session.getAttribute(k);        %>    <tr>      <td><%=k%></td>      <td><%=v%></td>    </tr>    <%      }    %>  </table>  </body>  </html>

需要注意的是,tomcat-redis-session-manager組件並不提供redis叢集的支援。對該問題，作者的解釋是推薦使用twitter的twemproxy或者碗豆莢的codis之類的redis代理服務。

java企業級通用許可權安全架構源碼 SpringMVC mybatis or hibernate+ehcache shiro druid bootstrap HTML5

【java架構源碼下載】

【電商】nginx+redis+tomcat實現session共用叢集

本文章原先以中文撰寫並發佈於 aliyun.com，亦設英文版本，僅作資訊用途。本網站不對文章的準確性，完整性或可靠性或其任何翻譯作出任何明示或暗示的陳述或保證。如對該文章有任何疑慮或投訴，請傳送電郵至 info-contact@alibabacloud.com 並提供相關疑慮或投訴的詳細說明。職員會於 5 個工作天內與您聯絡，一經驗證之後，即會刪除該侵權內容。

A Free Trial That Lets You Build Big!

Start building with 50+ products and up to 12 months usage for Elastic Compute Service

Get Started for Free

Sales Support

1 on 1 presale consultation

Chat Contact Sales
After-Sales Support

24/7 Technical Support 6 Free Tickets per Quarter Faster Response

Open a Ticket
Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.

Learn More