在同一端口上運行多個Tomcat實例

Question

我需要在同一端口上的不同目錄名下運行多個tomcat6實例。我將爲兩個不同的項目安裝tomcat6兩次。但是如何配置兩個實例在同一個端口上運行？

Answer 1

你可以通過使用mod_jk或mod_proxy指導基於應用程序的請求的apache web服務器來實現此目的。 （並獲得兩個擴展的解釋）

要選擇要使用的Apache項目的擴展：apache to tomcat: mod_jk vs mod_proxy

Answer 2

它不可能運行兩個服務通過單端口服務。每個端口號只能運行一個tomcat。

Answer 3

一次只能有一個進程在某個端口監聽。所以你想要做的並不是直接可能的。將請求轉發到其他實例或將另一臺服務器用作前端（例如Apache）可能會有好運。

Answer 4

是的，你可以。在server.xml中替換：

<Host name="localhost" appBase="webapps" unpackWARs="true" autoDeploy="true"> 
    <!-- SingleSignOn valve, share authentication between web applications 
     Documentation at: /docs/config/valve.html --> 
    <!-- 
    <Valve className="org.apache.catalina.authenticator.SingleSignOn" /> 
    --> 
    <!-- Access log processes all example. 
     Documentation at: /docs/config/valve.html 
     Note: The pattern used is equivalent to using pattern="common" --> 
    <Valve className="org.apache.catalina.valves.AccessLogValve" directory="logs" 
      prefix="localhost_access_log." suffix=".txt" 
      pattern="%h %l %u %t &quot;%r&quot; %s %b" /> 
</Host> 

通過

<Host name="app1.com" appBase="webappsApp1" unpackWARs="true" autoDeploy="true"> 

    <!-- SingleSignOn valve, share authentication between web applications 
     Documentation at: /docs/config/valve.html --> 
    <!-- 
    <Valve className="org.apache.catalina.authenticator.SingleSignOn" /> 
    --> 

    <!-- Access log processes all example. 
     Documentation at: /docs/config/valve.html 
     Note: The pattern used is equivalent to using pattern="common" --> 
    <Valve className="org.apache.catalina.valves.AccessLogValve" directory="logs" 
      prefix="localhost_access_log." suffix=".txt" 
      pattern="%h %l %u %t &quot;%r&quot; %s %b" /> 
</Host> 

<Host name="app2.com" appBase="webappsApp2" unpackWARs="true" autoDeploy="true"> 

    <!-- SingleSignOn valve, share authentication between web applications 
     Documentation at: /docs/config/valve.html --> 
    <!-- 
    <Valve className="org.apache.catalina.authenticator.SingleSignOn" /> 
    --> 

    <!-- Access log processes all example. 
     Documentation at: /docs/config/valve.html 
     Note: The pattern used is equivalent to using pattern="common" --> 
    <Valve className="org.apache.catalina.valves.AccessLogValve" directory="logs" 
      prefix="localhost_access_log." suffix=".txt" 
      pattern="%h %l %u %t &quot;%r&quot; %s %b" /> 
</Host> 

在你把應用1，同爲webappsApp2目錄和App2的戰爭webappsApp1目錄。

在App1和App2的dns區域放置服務器的公共IP地址。

Answer 5

是的，你可以在同一個端口上運行多個tomcat實例（或任何其他對象）。 爲此，您需要將多個真實IP綁定到VIP，然後每個RIP可以使用他們自己的一組端口進行收聽。

因此，每個tomcat將運行在相同的端口上，但在不同的真實IP地址上運行。

Answer 6

不同實例與不同的上下文中有相同的端口號：

<!-- Test1 --> 
    <Host name="192.168.1.254" appBase="webapps" 
     unpackWARs="true" autoDeploy="true"> 

    <!-- SingleSignOn valve, share authentication between web applications 
     Documentation at: /docs/config/valve.html --> 
    <!-- 
    <Valve className="org.apache.catalina.authenticator.SingleSignOn" /> 
    --> 

    <!-- Access log processes all example. 
     Documentation at: /docs/config/valve.html 
     Note: The pattern used is equivalent to using pattern="common" --> 
    <Context docBase="Testing" path="/" reloadable="true"/> 
    <Valve className="org.apache.catalina.valves.AccessLogValve" directory="logs" 
      prefix="254_access_log" suffix=".txt" 
      pattern="%h %l %u %t &quot;%r&quot; %s %b" /> 

    </Host> 

    <!-- Test2 --> 
    <Host name="192.168.1.250" appBase="webapps1" 
     unpackWARs="true" autoDeploy="true"> 

    <!-- SingleSignOn valve, share authentication between web applications 
     Documentation at: /docs/config/valve.html --> 
    <!-- 
    <Valve className="org.apache.catalina.authenticator.SingleSignOn" /> 
    --> 

    <!-- Access log processes all example. 
     Documentation at: /docs/config/valve.html 
     Note: The pattern used is equivalent to using pattern="common" --> 
    <Context docBase="Testing2" path="/" reloadable="true"/> 
    <Valve className="org.apache.catalina.valves.AccessLogValve" directory="logs" 
      prefix="250_access_log" suffix=".txt" 
      pattern="%h %l %u %t &quot;%r&quot; %s %b" /> 

    </Host> 

    <!-- Test3 --> 

    <Host name="192.168.1.249" appBase="webapps2" 
     unpackWARs="true" autoDeploy="true"> 

    <!-- SingleSignOn valve, share authentication between web applications 
     Documentation at: /docs/config/valve.html --> 
    <!-- 
    <Valve className="org.apache.catalina.authenticator.SingleSignOn" /> 
    --> 

    <!-- Access log processes all example. 
     Documentation at: /docs/config/valve.html 
     Note: The pattern used is equivalent to using pattern="common" --> 
    <Context docBase="Testing3" path="/" reloadable="true"/> 
    <Valve className="org.apache.catalina.valves.AccessLogValve" directory="logs" 
      prefix="249_access_log" suffix=".txt" 
      pattern="%h %l %u %t &quot;%r&quot; %s %b" /> 

    </Host>