이 글에서는 주로 Nginx 로드 스케줄러 + 듀얼 Tomcat 로드 및 세션 공유 + MySQL 백엔드 데이터베이스를 소개합니다. 이제는 필요한 친구들이 참고할 수 있도록 공유합니다.
환경:
IP | Function |
---|---|
192.168.2.5 | nginx |
192.1 6 8.2.6 | tomcat1 |
192.168. 2.7 tomcat2 080, 3306, selinux | ② nginx 설치 |
[root@192 ~]# useradd -M -s /sbin/nologin nginx | [root @192 ~]# tar zxf nginx-1.13.9.tar.gz -C /usr/src |
nginx를 시작하지 마세요
③설치용 Tomcat 호스트 두 개jdk从官网下载需要许可,允许之后下载至本地,导入主机 tomcat从官网downloads找到tomcat7.0或者更高版本 wget http://mirror.bit.edu.cn/apache/tomcat/tomcat-7/v7.0.86/bin/apache-tomcat-7.0.86.tar.gz[root@192 ~]# tar zxf jdk-7u65-linux -x64.gz -C /usr/src[root@192 ~]# tar zxf apache-tomcat-7.0.54.tar.gz -C /usr/src [root@192 ~]# mv jdk1.7.0_65/ /usr/local/java[root@192 ~]# mv apache-tomcat-7.0.54/ /usr/local/tomcat7[root@192 ~ ]# vim /etc/profile
export JAVA_HOME=/usr/local/java export CATALINA_HOME=/usr/local/tomcat7 export PATH=$JAVA_HOME/bin:$CATALINA_HOME/bin:$PATH[root@192 ~]# 소스 /etc/profile
[root@192 ~]# java -version
java version "1.8.0_171" Java(TM) SE Runtime Environment (build 1.8.0_171-b11) Java HotSpot(TM) 64-Bit Server VM (build 25.171-b11, mixed mode)[root@192 ~]# catalina.sh 버전
Using CATALINA_BASE: /usr/local/tomcat7 Using CATALINA_HOME: /usr/local/tomcat7 Using CATALINA_TMPDIR: /usr/local/tomcat7/temp Using JRE_HOME: /usr/local/java Using CLASSPATH: /usr/local/tomcat7/bin/bootstrap.jar:/usr/local/tomcat7/bin/tomcat-juli.jar Server version: Apache Tomcat/7.0. Server built: May 19 2014 10:26:15 Server number: 7.0.86.0 OS Name: Linux OS Version: 3.10.0-327.el7.x86_64 Architecture: amd64 JVM Version: 1.7.0_65-b17 JVM Vendor: Oracle CorporationTomcat 시작
[root@192 ~] # /usr/local/tomcat7/bin/startup.sh
Using CATALINA_BASE: /usr/local/tomcat7 Using CATALINA_HOME: /usr/local/tomcat7 Using CATALINA_TMPDIR: /usr/local/tomcat7/temp Using JRE_HOME: /usr/local/java Using CLASSPATH: /usr/local/tomcat7/bin/bootstrap.jar:/usr/local/tomcat7/bin/tomcat-juli.jar Tomcat started.
테스트 접속
http://192.168.2.6:8080
http://192.168.2.7:80804두 개의 호스트에서 Tomcat 구성 파일 수정
[root@192 ~]#cd /usr/local/tomcat7/conf
[root@192 ~]#cp server.xml server.xml.bak
[root@192 ~ ]#vim server.xml
....... <Engine name="Catalina" defaultHost="localhost" jvmRoute="tomcat-1"> <Host name="localhost" appBase="webapps" unpackWARs="true" autoDeploy="true"> <Context docBase="/web/webapp1" path="" reloadable="true"/>
[root@192 ~]#mkdir -p /web/webapp1
[root@192 ~]#vim /web/webapp1/index.jsp
<%@page language="java" import="java.util.*" pageEncoding="UTF-8"%> <html> <head> <title>tomcat-1</title> </head> <body> <h1><font color="red">Session serviced by tomcat</font></h1> <table aligh="center" border="1"> <tr> <td>Session ID</td> <td><%=session.getId()%></td> <% session.setAttribute("abc","abc");%> </tr> <tr> <td>Create on</td> <td><%= session.getCreationTime() %></td> </tr> </table> </body> </html>Tomcat 다시 시작
[root@ 192 ~]#shutdown.sh
[ root@192 ~]#startup.sh참고: 두 번째 호스트는 server.xml의 jvmRoute="tomcat-2"와
in index.jsp
http://192.168.2.7 :8008
두 번째, 세션 공유 구성
단계:
①두 호스트가 세션 공유 클러스터 구성
[root@192 ~]#vim /usr/local/tomcat7/conf/server.xml
....... <Engine name="Catalina" defaultHost="localhost" jvmRoute="tomcat-1"> <!--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"/> --> <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.catal ina.tribes.group.GroupChannel"> <Membership className="org.apache.catalina.tribes.membership.McastService" address="228.0.0.4" port="45564" frequency="500" dropTime="3000"/> <Receiver className="org.apache.catalina.tribes.transport.nio.NioReceiver" address="192.168.2.5" 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" temDir="/tmp/war-temp/" deployDir="/tmp/war-deploy/" watchDir="/tmp/war-listen/" watchEnabled="false"/> <ClusterListener className="org.apache.catalina.ha.session.JvmRouteSessionIDBinderListener"/> <ClusterListener className="org.apache.catalina.ha.session.ClusterSessionListener"/> </Cluster> <!-- 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 name="localhost" appBase="webapps" unpackWARs="true" autoDeploy="true"> <Context docBase="/web/webapp1" path="" reloadable="true"/>[root@192 ~ ]#mkdir /web/webapp1/WEB-INF
[root@192 ~]#cp /usr/local/tomcat7/conf/web.xml WEB-INF/
[root@192 ~]#vim WEB-INF /web.xml<web-app xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" version="3.0"> <distributable/> #添加这个单词,必须有这一步,否则用户的session没法使用
방화벽이 켜져 있으면 다음을 활성화하세요
Tomcat 다시 시작
[root@192 ~]#shutdown.sh[root@192 ~]#startup.sh
참고: 두 Tomcat 구성은 동일합니다. 수신자 섹션에서 두 번째 호스트의 IP 주소를 가리키기만 하면 됩니다
②nginx 구성[root@192 ~] #vim /usr/local/nginx/conf/nginx.conf
....... http { ....... upstream tomcat_server { server 192.168.2.6:8080 weight=1; server 192.168.2.7:8080 weight=1; } #gzip on; server { listen 80; server_name localhost; #charset koi8-r; #access_log logs/host.access.log main; location / { root html; index index.html index.htm; proxy_pass http://tomcat_server; }nginx를 시작하고 nginx 주소를 방문한 후 페이지를 새로 고쳐 액세스를 테스트하세요
3. mysql 데이터베이스에 연결합니다.
단계:
1mysql을 데이터베이스 서버로 사용하고 mysql을 구성합니다. mysql>다음으로 식별되는 .
에 대한 모든 권한을 부여합니다. '123.com';
mysql> 데이터베이스 생성 javatest
mysql>javatest
사용mysql>테이블 testdata 생성(id int not null auto_increment 기본 키,foo varchar(25),bar varchar(10));
mysql>testdata(foo,bar) 값에 삽입('hello','123.com ')
②下载mysql-connector-java-5.1.22-bin.jar 复制到tomcat7/lib/目录下(两台tomcat都需要配置)
[root@192 ~]# cp mysql-connector-java-5.1.22-bin.jar /usr/local/tomcat7/lib/
③配置context.xml
[root@192 ~]# cp /usr/local/tomcat7/conf/context.xml /usr/local/tomcat7/conf/context.xml.bak
[root@192 ~]# vim /usr/local/tomcat7/conf/context.xml
<Context> <!-- Default set of monitored resources --> <WatchedResource>WEB-INF/web.xml</WatchedResource> <Resource name="jdbc/TestDB" auth="Container" type="javax.sql.DataSource" maxActive="100" maxIdle="30" maxWait="10000" username="javauser" password="123.com" driverClassName="com.mysql.jdbc.Driver" url="jdbc:mysql://192.168.2.8:3306/javatest"/>
④配置web.xml
[root@192 ~]# vim /web/webapp1/web.xml
...... <distributable/> <description>MySQL Test App</description> <resource-ref> <description>DB Connection</description> <res-ref-name>jdbc/TestDB</res-ref-name> <res-type>javax.sql.DataSource</res-type> <res-auth>Container</res-auth> </resource-ref>
⑤编写连接数据库jsp文件
[root@192 ~]# vim /web/webapp1/test.jsp
<%@ page language="java" import="java.sql.*" pageEncoding="GB2312"%> <html> <head> <title>MySQL</title> </head> <body> connect MySQL<br> <% String driverClass="com.mysql.jdbc.Driver"; String url="jdbc:mysql://192.168.2.8:3306/javatest"; String username = "javauser"; String password = "123.com"; Class.forName(driverClass); Connection conn=DriverManager.getConnection(url, username, password); Statement stmt=conn.createStatement(); ResultSet rs = stmt.executeQuery("select * from testdata"); while(rs.next()){ out.println("<br>foo:"+rs.getString(2)+"bar:"+rs.getString(3)); } rs.close(); stmt.close(); conn.close(); %> </body></html>
⑥重启tomcat,测试连接
[root@192 ~]# shutdown.sh
[root@192 ~]# startup.sh
http://192.168.2.5/test.jsp
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위 내용은 Nginx 로드 스케줄러 + 듀얼 Tomcat 로드 및 세션 공유 + MySQL 백엔드 데이터베이스의 상세 내용입니다. 자세한 내용은 PHP 중국어 웹사이트의 기타 관련 기사를 참조하세요!