tomcat7 虚拟机配置

tomcat配置虚拟主机

1.基本作用

客户端可以通过访问不同的域名，来访问同一个tomcat上的不同内容。

2.添加主机名

在系统hosts文件中新增主机名tomcat1

[root@localhost ~]# cat /etc/hosts

127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4 tomcat1

#::1 localhost localhost.localdomain localhost6 localhost6.localdomain6

3.在tomcat配置文件中配置虚拟主机

[root@localhost ~]# cat /usr/local/tomcat/conf/server.xml

<?xml version='1.0' encoding='utf-8'?>

<!--

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

-->

<!-- Security listener. Documentation at /docs/config/listeners.html

-->

<!-- Global JNDI resources

Documentation at /docs/jndi-resources-howto.html

-->

<!-- Editable user database that can also be used by

UserDatabaseRealm to authenticate users

-->

<Resource name="UserDatabase" auth="Container"

type="org.apache.catalina.UserDatabase"

description="User database that can be updated and saved"

factory="org.apache.catalina.users.MemoryUserDatabaseFactory"

pathname="conf/tomcat-users.xml" />

</GlobalNamingResources>

<!-- A "Service" is a collection of one or more "Connectors" 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

-->

<!--

<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 port="8080" protocol="HTTP/1.1"

connectionTimeout="20000"

redirectPort="8443" />

<!--

<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" />

-->

<!-- 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 :

-->

<!--For clustering, please take a look at documentation at:

/docs/cluster-howto.html (simple how to)

/docs/config/cluster.html (reference documentation) -->

<!--

-->

<!-- Use the LockOutRealm to prevent attempts to guess user passwords

via a brute-force attack -->

<!-- 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 name="localhost" appBase="webapps"

unpackWARs="true" autoDeploy="true">

<!-- SingleSignOn valve, share authentication between web applications

Documentation at: /docs/config/valve.html -->

<!--

-->

<!-- 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 "%r" %s %b" />

</Host>

<Host name="tomcat1" appBase="/usr/local/nginx/html"

unpackWARs="true" autoDeploy="true">

<Context path="tmp" docBase="root" debug="0" reloadable="true" crossContext="ture"

<Valve className="org.apache.catalina.valves.AccessLogValve" directory="logs"

prefix="tomcat1_access_log." suffix=".txt"

pattern="%h %l %u %t "%r" %s %b" />

</Host>

</Engine>

</Service>

</Server>

新增部分说明：

<Host name="tomcat1" appBase="/usr/local/nginx/html" #name值为新增的主机名，appBase为代码路径

unpackWARs="true" autoDeploy="true"> #unpackWARs设置为自动解压war包，autoDeploy设置为自动载入新应用

#path表示默认访问路径的前缀为http://tomcat1:8080/tmp/，如果设置为空子默认路径为http://tomcat1:8080/

#docBase表示java类应用程序的路径，也是根路径访问的内容。http://tomcat1:8080/tmp/和http://tomcat1:8080/root/访问的内容相同

<Valve className="org.apache.catalina.valves.AccessLogValve" directory="logs" #指定logger使用的类名，此类必须实现

prefix="tomcat1_access_log." suffix=".txt" #设置日志文件的名称

pattern="%h %l %u %t "%r" %s %b" /> #设置日志文件的格式。

</Host>

关键参数说明：

defaultHost 指定缺省的处理请求的主机名，它至少与其中的一个host元素的

name属性值是一样的

Context (表示一个web应用程序，通常为WAR文件，关于WAR的具体信息见servlet规范):

docBase 应用程序的路径或者是WAR文件存放的路径，类似于重定向根目录。

path 表示此web应用程序的url的前缀，这样请求的url为http://localhost:8080/path/****

reloadable 这个属性非常重要，如果为true，则tomcat会自动检测应用程序的/WEB-INF/lib 和/WEB-INF/classes目录的变化，

自动装载新的应用程序，可以在不重起tomcat的情况下改变应用程序，生产环境设置为false，减少资源消耗。

host (表示一个虚拟主机):

name 指定主机名

appBase 应用程序基本目录，即存放应用程序的目录

unpackWARs 如果为true，则tomcat会自动将WAR文件解压，否则不解压，直接从WAR文件中运行应用程序

Logger (表示日志，调试和错误信息):

className 指定logger使用的类名，此类必须实现

org.apache.catalina.Logger 接口

4.测试访问效果

默认主机名的文件：/usr/local/tomcat/webapps/test/index.html

tomcat1的文件：/usr/local/nginx/html/test/index.html

访问特定内容测试：

[root@localhost webapps]# curl http://localhost:8080/test/

localhost server

[root@localhost webapps]# curl http://tomcat1:8080/test/

tomcat1 test

可以看出不同主机名的访问内容不同，实现的主机名的测试

访问首页测试：

[root@localhost webapps]# curl -I http://tomcat1:8080/tmp/ #path指定了前缀为tmp，实际没有tmp目录

HTTP/1.1 200 OK #访问成功

Server: Apache-Coyote/1.1

Content-Type: text/html;charset=ISO-8859-1

Transfer-Encoding: chunked

Date: Sat, 04 Mar 2017 12:38:24 GMT

[root@localhost webapps]# curl -I http://tomcat1:8080/ #不加tmp前缀测试

HTTP/1.1 404 Not Found #访问失败

Server: Apache-Coyote/1.1

Transfer-Encoding: chunked

Date: Sat, 04 Mar 2017 12:38:33 GMT

(责任编辑：liangzh)

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tomcat7 虚拟机配置