1.Tomcatのインストール
#get install tomcat8
#apt-get install tomcat8-docs tomcat8-examples tomcat8-admin
#systemctl start tomcat8
#systemctl stop tomcat8
URL確認
http://example.com:8080/
2.tomcat-users.xmlの設定
/var/lib/tomcat8/conf/tomcat-users.xml
<role rolename=”manager-gui”/>
<role rolename=”admin-gui”/>
<user username=”username” password=”password” roles=”manager-gui,admin-gui”/>
tomcat8再起動
#systemctl restart tomcat8
設定内容
<Cluster className=”org.apache.catalina.ha.tcp.SimpleTcpCluster” channelSendOptions=”8″>
<Manager className=”org.apache.catalina.ha.session.DeltaManager”
expireSessionsOnShutdown=”false”
notifyListenersOnReplication=”true”/>
<Channel className=”org.apache.catalina.tribes.group.GroupChannel”>
<Membership className=”org.apache.catalina.tribes.membership.McastService”
address=”125.1.2.12″
port=”45564″
frequency=”500″
dropTime=”3000″/>
<Receiver className=”org.apache.catalina.tribes.transport.nio.NioReceiver”
address=”auto”
port=”4000″
autoBind=”100″
selectorTimeout=”5000″
maxThreads=”6″/>
<Sender className=”org.apache.catalina.tribes.transport.ReplicationTransmitter”>
<Transport className=”org.apache.catalina.tribes.transport.nio.PooledParallelSender”/>
</Sender>
<Interceptor className=”org.apache.catalina.tribes.group.interceptors.TcpFailureDetector”/>
<Interceptor className=”org.apache.catalina.tribes.group.interceptors.MessageDispatch15Interceptor”/>
</Channel>
<Valve className=”org.apache.catalina.ha.tcp.ReplicationValve” filter=””/>
<Valve className=”org.apache.catalina.ha.session.JvmRouteBinderValve”/>
<Deployer className=”org.apache.catalina.ha.deploy.FarmWarDeployer”
tempDir=”/tmp/war-temp/”
deployDir=”/tmp/war-deploy/”
watchDir=”/tmp/war-listen/”
watchEnabled=”false”/>
<ClusterListener className=”org.apache.catalina.ha.session.ClusterSessionListener”/>
</Cluster>
#cd /etc/init.d
サンプルコード下記
#vim tomcat8
#!/bin/bash
#
# tomcat startup script for the Tomcat server
#
# chkconfig: 345 80 20
# description: start the tomcat deamon
#
# Source function library
. /etc/rc.d/init.d/functions
prog=tomcat8
JAVA_HOME=/opt/env/jdk1.8.0_40
export JAVA_HOME
CATALANA_HOME=/opt/env/apache-tomcat-8.0.20/
export CATALINA_HOME
case “$1” in
start)
echo “Starting Tomcat…”
$CATALANA_HOME/bin/startup.sh
;;
stop)
echo “Stopping Tomcat…”
$CATALANA_HOME/bin/shutdown.sh
;;
restart)
echo “Stopping Tomcat…”
$CATALANA_HOME/bin/shutdown.sh
sleep 2
echo
echo “Starting Tomcat…”
$CATALANA_HOME/bin/startup.sh
;;
*)
echo “Usage: $prog {start|stop|restart}”
;;
esac
exit 0
:wq!
権限の設定
#chmod 755 tomcat8
tomcat起動
#service tomcat8 start
自動起動
#chkconfig tomcat8 on
更新内容
Avoid an NPE when adding POJO WebSocket endpoints programmatically
Improved handling of async timeouts
Facilitate weaving by allowing ClassFileTransformer to be added to WebappClassLoader
詳細内容についてhttp://tomcat.apache.org/tomcat-7.0-doc/changelog.html
ダウンロード
参考コード
<%@page contentType=”text/html” pageEncoding=”UTF-8″%>
<!DOCTYPE HTML PUBLIC “-//W3C//DTD HTML 4.01 Transitional//EN”
“http://www.w3.org/TR/html4/loose.dtd”>
<html>
<head>
<meta http-equiv=”Content-Type” content=”text/html; charset=UTF-8″>
<title>JVM memory</title>
</head>
<body>
<%
double total = (Runtime.getRuntime().totalMemory()) / (1024.0 * 1024);
double max = (Runtime.getRuntime().maxMemory()) / (1024.0 * 1024);
double free = (Runtime.getRuntime().freeMemory()) / (1024.0 * 1024);
out.println(“Java仮想マシンにメモリの最大量maxMemory(): ” + max + “MB<br/>”);
out.println(“Java仮想マシンのメモリの総量totalMemory(): ” + total + “MB<br/>”);
out.println(“Java仮想マシンの空きメモリ量freeMemory(): ” + free + “MB<br/>”);
out.println(“JVM実際の使用可能なメモリ: ” + (max – total + free) + “MB<br/>”);
out.println(“jspcn”);
%>
</body>
</html>
1.web.xmlの配置
<error-page>
<error-code>400</error-code>
<location>/400.html</location>
</error-page>
<error-page>
<error-code>404</error-code>
<location>/404.html</location>
</error-page>
<error-page>
<error-code>500</error-code>
<location>/error.jsp</location>
</error-page>
2.error.jspの設定
<%@page contentType=”text/html;charset=Big5″ isErrorPage=”true”%>
<html>
<head><title>エラーが発生した</title></head>
<body>
<H1>エラー：</H1><%=exception%>
<H2>エラーメッセージ：</H2>
<%
exception.printStackTrace(response.getWriter());
%>
</body>
</html>
3.画面をリダイレクト
<%@page contentType=”text/html;charset=Big5″ isErrorPage=”true”%>
<html>
<head><title>エラー情報</title></head>
<body>
エラーコード： <%=request.getAttribute(“javax.servlet.error.status_code”)%> <br>
メッセージ： <%=request.getAttribute(“javax.servlet.error.message”)%> <br>
例外： <%=request.getAttribute(“javax.servlet.error.exception_type”)%> <br>
</body>
</html>