How Tomcat works — 七、tomcat发布webapp

目录

• 什么叫发布
• webapp发布方式
• reload
• 总结

什么叫发布

发布就是让tomcat知道我们的程序在哪里，并根据我们的配置创建Context，进行初始化、启动，如下：

• 程序所在的位置
• 创建Context，添加到Host
• 初始化（创建解析web
• 启动（初始化filter、listener、servlet）

webapp发布方式

在tomcat 中发布webapp的方式不同会导致app启动的先后顺序不一样（这里按照启动顺序或者时机不同进行划分）：

1. 在
2. 直接将webapp文件夹、war包放在tomcat下面的"webapps"目录，或者在webapps下面新建一个

其实两种发布方式只是在启动顺序上稍有不同，启动过程完全一致，先以在server.

在server.

这情况在我们使用eclipse等工具进行开发发布的时候，eclipse会帮我们在server.

<? Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements. See the NOTICE file distributed with this work for additional information regarding copyright ownership. The ASF licenses this file to You under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at   http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.--><!-- Note: A "Server" is not itself a "Container", so you may not   define subcomponents such as "Valves" at this level.   Documentation at /docs/config/server.html --><Server port="8006" shutdown="SHUTDOWN"> <Listener className="org.apache.catalina.startup.VersionLoggerListener"/> <!-- Security listener. Documentation at /docs/config/listeners.html <Listener className="org.apache.catalina.security.SecurityListener" /> --> <!--APR library loader. Documentation at /docs/apr.html --> <Listener SSLEngine="on" className="org.apache.catalina.core.AprLifecycleListener"/> <!--Initialize Jasper prior to webapps are loaded. Documentation at /docs/jasper-howto.html --> <Listener className="org.apache.catalina.core.JasperListener"/> <!-- Prevent memory leaks due to use of particular java/javax APIs--> <Listener className="org.apache.catalina.core.JreMemoryLeakPreventionListener"/> <Listener className="org.apache.catalina.mbeans.GlobalResourcesLifecycleListener"/> <Listener className="org.apache.catalina.core.ThreadLocalLeakPreventionListener"/> <!-- Global JNDI resources    Documentation at /docs/jndi-resources-howto.html --> <GlobalNamingResources>  <!-- Editable user database that can also be used by     UserDatabaseRealm to authenticate users  -->  <Resource auth="Container" description="User database that can be updated and saved" factory="org.apache.catalina.users.MemoryUserDatabaseFactory" name="UserDatabase" pathname="conf/tomcat-users. that share    a single "Container" Note: A "Service" is not itself a "Container",    so you may not define subcomponents such as "Valves" at this level.    Documentation at /docs/config/service.html  --> <Service name="Catalina">  <!--The connectors can use a shared executor, you can define one or more named thread pools-->  <!--  <Executor name="tomcatThreadPool" namePrefix="catalina-exec-"    maxThreads="150" minSpareThreads="4"/>  -->  <!-- A "Connector" represents an endpoint by which requests are received     and responses are returned. Documentation at :     Java HTTP Connector: /docs/config/http.html (blocking & non-blocking)     Java AJP Connector: /docs/config/ajp.html     APR (HTTP/AJP) Connector: /docs/apr.html     Define a non-SSL HTTP/1.1 Connector on port 8080  -->  <Connector connectionTimeout="20000" port="8888" protocol="HTTP/1.1" redirectPort="8445"/>  <!-- A "Connector" using the shared thread pool-->  <!--  <Connector executor="tomcatThreadPool"        port="8080" protocol="HTTP/1.1"        connectionTimeout="20000"        redirectPort="8443" />  -->  <!-- Define a SSL HTTP/1.1 Connector on port 8443     This connector uses the BIO implementation that requires the JSSE     style configuration. When using the APR/native implementation, the     OpenSSL style configuration is required as described in the APR/native     documentation -->  <!--  <Connector port="8443" protocol="org.apache.coyote.http11.Http11Protocol"        maxThreads="150" SSLEnabled="true" scheme="https" secure="true"        clientAuth="false" sslProtocol="TLS" />  -->  <!-- Define an AJP 1.3 Connector on port 8009 -->  <Connector port="8019" protocol="AJP/1.3" redirectPort="8443"/>  <!-- An Engine represents the entry point (within Catalina) that processes     every request. The Engine implementation for Tomcat stand alone     analyzes the HTTP headers included with the request, and passes them     on to the appropriate Host (virtual host).     Documentation at /docs/config/engine.html -->  <!-- You should set jvmRoute to support load-balancing via AJP ie :  <Engine name="Catalina" defaultHost="localhost" jvmRoute="jvm1">  -->  <Engine defaultHost="localhost" name="Catalina">   <!--For clustering, please take a look at documentation at:     /docs/cluster-howto.html (simple how to)     /docs/config/cluster.html (reference documentation) -->   <!--   <Cluster className="org.apache.catalina.ha.tcp.SimpleTcpCluster"/>   -->   <!-- Use the LockOutRealm to prevent attempts to guess user passwords      via a brute-force attack -->   <Realm className="org.apache.catalina.realm.LockOutRealm">    <!-- This Realm uses the UserDatabase configured in the global JNDI       resources under the key "UserDatabase". Any edits       that are performed against this UserDatabase are immediately       available for use by the Realm. -->    <Realm className="org.apache.catalina.realm.UserDatabaseRealm" resourceName="UserDatabase"/>   </Realm>   <Host appBase="webapps" autoDeploy="true" name="localhost" unpackWARs="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" pattern="%h %l %u %t &quot;%r&quot; %s %b" prefix="localhost_access_log." suffix=".txt"/>      <Context docBase="/var/tomcat-test/webapps/TestTomcat" path="/TestTomcat" reloadable="true" source="org.eclipse.jst.jee.server:TestTomcat"/>    </Host>  </Engine> </Service></Server>

 

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原标题：How Tomcat works — 七、tomcat发布webapp

关键词：tomcat