查看tomcat服务器信息

yui

　　环境变量CATALINA_HOME: tomcat的安装目录.
　　显示tomcat服务器信息的方式很多,
　　1. 运行%CATALINA_HOME%\bin目录下的version.bat批处理文件
　　2. 在命令行输入命令: "%CATALINA_HOME%\bin\catalina.bat" version
　　这些事实上都是调用%CATALINA_HOME%\lib\catalina.jar类库中org\apacha\catalina\util\ServerInfo.properties配置信息.
　　修改org\apacha\catalina\util\ServerInfo.properties中的配置信息后,上面二种方式显示的结果会相应地发生变化.
　　e.g.

# 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.
server.info=Apache Tomcat/6.0.32
server.number=6.0.32.0
server.built=February 2 2011 2003
 　　可以通过运行catalina.jar中org.apache.catalina.util.ServerInfo输出tomcat服务器信息
　　相关命令:java -cp "%CATALINA_HOME%\lib\catalina.jar" org.apache.catalina.util.ServerInfo
　　org.apache.catalina.util.ServerInfo关键代码:

static {
try {
InputStream is = ServerInfo.class.getResourceAsStream
("/org/apache/catalina/util/ServerInfo.properties");
Properties props = new Properties();
props.load(is);
is.close();
serverInfo = props.getProperty("server.info");
serverBuilt = props.getProperty("server.built");
serverNumber = props.getProperty("server.number");
} catch (Throwable t) {
;
}
if (serverInfo == null)
serverInfo = "Apache Tomcat";
if (serverBuilt == null)
serverBuilt = "unknown";
if (serverNumber == null)
serverNumber = "5.5.0.0";
}
public static void main(String args[]) {
System.out.println("Server version: " + getServerInfo());
System.out.println("Server built:   " + getServerBuilt());
System.out.println("Server number:  " + getServerNumber());
System.out.println("OS Name:        " +
System.getProperty("os.name"));
System.out.println("OS Version:     " +
System.getProperty("os.version"));
System.out.println("Architecture:   " +
System.getProperty("os.arch"));
System.out.println("JVM Version:    " +
System.getProperty("java.runtime.version"));
System.out.println("JVM Vendor:     " +
System.getProperty("java.vm.vendor"));                        
}