Tomcat+JSPç»å¸éç½®å®ä¾

于 2006-09-05 16:41:00 发布 · 9.9k 阅读

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本文介绍如何安装配置JDK和Tomcat，并详细说明部署JSP应用、Servlet及使用JavaBean的过程。

ãç»å¸¸çå°jspçåå¦èé®tomcatä¸å¦ä½éç½®jspãservletåbeançé®é¢ï¼äºæ¯æ»ç»äºä¸ä¸å¦ä½tomcatä¸éç½®jspãservletåbenï¼å¸æå¯¹é£äºåå¦èææå¸®å©ã

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ç¬¬ä¸æ¥ï¼ä¸è½½j2sdkåtomcatï¼å°sunå®æ¹ç«ï¼http://java.sun.com/j2se/1.5.0/download.jspï¼ä¸è½½j2sdkï¼æ³¨æä¸è½½çæ¬ä¸ºWindows Offline InstallationçSDKï¼åæ¶æå¥½ä¸è½½J2SE 1.5.0 Documentationï¼ç¶åå°tomcatå®æ¹ç«ç¹ï¼http://jakarta.apache.org/site/downloads/downloads_tomcat-5.cgiï¼ä¸è½½tomcatï¼ä¸è½½ææ°5.5.9çæ¬çtomcatï¼ï¼

JAVA_HOME=c:\j2sdk1.5.0
classpath=.;%JAVA_HOME%\lib\dt.jar;%JAVA_HOME%\lib\tools.jar;ï¼.;ä¸å®ä¸è½å°ï¼å ä¸ºå®ä»£è¡¨å½åè·¯å¾)
path=%JAVA_HOME%\bin

public class Test{
public static void main(String args[]){
System.out.println("This is a test program.");
}
}

å°ä¸é¢çè¿æ®µç¨åºä¿åä¸ºæä»¶åä¸ºTest.javaçæä»¶ã

javac Test.java
java Test

2.å®è£Tomcatåï¼å¨æççµè->å±æ§->é«çº§->ç¯å¢åé->ç³»ç»åéä¸æ·»å ä»¥ä¸ç¯å¢åé(åå®ä½ çtomcatå®è£å¨c:\tomcat)ï¼

CATALINA_HOME=c:\tomcat
CATALINA_BASE=c:\tomcat

ç¶åä¿®æ¹ç¯å¢åéä¸çclasspathï¼ætomatå®è£ç®å½ä¸çcommon\libä¸ç(å¯ä»¥æ ¹æ®å®éè¿½å )servlet.jarè¿½å å°classpathä¸å»ï¼ä¿®æ¹åçclasspathå¦ä¸ï¼

classpath=.;%JAVA_HOME%\lib\dt.jar;%JAVA_HOME%\lib\tools.jar;%CATALINA_HOME%\common\lib\servlet.jar;

æ¥çå¯ä»¥å¯å¨tomcatï¼å¨IEä¸è®¿é®http://localhost:8080ï¼å¦æçå°tomcatçæ¬¢è¿é¡µé¢çè¯è¯´æå®è£æåäºã

ç¬¬ä¸æ¥ï¼å»ºç«èªå·±çjsp appç®å½

5.å¨myappä¸æ°å»ºä¸ä¸ªæµè¯çjspé¡µé¢ï¼æä»¶åä¸ºindex.jspï¼æä»¶åå®¹å¦ä¸ï¼
<html><body><center>
Now time is: <%=new java.util.Date()%>
</center></body></html>

6.éå¯Tomcat

7.æå¼æµè§å¨ï¼è¾å¥http://localhost:8080/myapp/index.jsp çå°å½åæ¶é´çè¯è¯´æå°±æåäºã

ç¬¬åæ¥ï¼å»ºç«èªå·±çServletï¼

package test;
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
public class Test extends HttpServlet {
protected void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
PrintWriter out=response.getWriter();
out.println("<html><body><h1>This is a servlet test.</h1></body></html>");
out.flush();
}
}

C:\Test>javac Test.java

ç¶åå¨c:\Testä¸ä¼äº§çä¸ä¸ªç¼è¯åçservletæä»¶ï¼Test.class

3 .å°ç»ætest\Test.classåªåå°%CATALINA_HOME%\webapps\myapp\WEB-INF\classesä¸ï¼ä¹å°±æ¯åªåé£ä¸ªtestç®å½å°classesç®å½ä¸ï¼å¦æclassesç®å½ä¸åå¨ï¼å°±æ°å»ºä¸ä¸ªã ç°å¨webapps\myapp\WEB-INF\classesä¸ætest\Test.classçæä»¶ç®å½ç»æ

4 .ä¿®æ¹webapps\myapp\WEB-INF\web.xmlï¼æ·»å servletåservlet-mapping

ç¼è¾åçweb.xmlå¦ä¸æç¤ºï¼çº¢è²ä¸ºæ·»å çåå®¹:

<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE web-app
PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
"http://java.sun.com/dtd/web-app_2_3.dtd">
<web-app>
<display-name>My Web Application</display-name>
<description>
A application for test.
</description>
<servlet>
<servlet-name>Test</servlet-name>
<display-name>Test</display-name>
<description>A test Servlet</description>
<servlet-class>test.Test</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>Test</servlet-name>
<url-pattern>/Test</url-pattern>
</servlet-mapping>
</web-app>

è¿æ®µè¯ä¸çservletè¿ä¸æ®µå£°æäºä½ è¦è°ç¨çServletï¼èservlet-mappingåæ¯å°å£°æçservlet"æ å°"å°å°å/Testä¸

5 .å¥½äºï¼éå¯å¨Tomcatï¼å¯å¨æµè§å¨ï¼è¾å¥http://localhost:8080/myapp/Test å¦æçå°è¾åºThis is a servlet test.å°±è¯´æç¼åçservletæåäºã

æ³¨æï¼ä¿®æ¹äºweb.xmlä»¥åæ°å äºclassï¼é½è¦éå¯Tomcat

ç¬¬åæ¥ï¼å»ºç«èªå·±çBeanï¼

package test;
public class TestBean{
private String name = null;
public TestBean(String strName_p){
this.name=strName_p;
}
public void setName(String strName_p){
this.name=strName_p;
}
public String getName(){
return this.name;
}
}

2 .ç¼è¯

C:\Test>javac TestBean.java

ç¶åå¨c:\Testä¸ä¼äº§çä¸ä¸ªç¼è¯åçbeanæä»¶ï¼TestBean.class

3 .å°TestBean.classæä»¶åªåå° %CATALINA_HOME%\webapps\myapp\WEB-INF\classes\testä¸ï¼

4 .æ°å»ºä¸ä¸ªTestBean.jspæä»¶ï¼æä»¶åå®¹ä¸ºï¼

<%@ page import="test.TestBean" %>
<html><body><center>
<%
TestBean testBean=new TestBean("This is a test java bean.");
%>
Java bean name is: <%=testBean.getName()%>
</center></body></html>

5 .å¥½äºï¼éå¯Tomcatï¼å¯å¨æµè§å¨ï¼è¾å¥http://localhost:8080/myapp/TestBean.jsp å¦æçå°è¾åºJava bean name is: This is a test java bean.å°±è¯´æç¼åçBeanæåäºã

jvmåºå¡«åå°
c:\j2sdk\bin

ç»ä½ ä¸ä¸ªç®åçéç½®ï¼ï¼ï¼ï¼

JSPç¯å¢éç½®å¿å¾

æ¨æå¥½å»ä¸è½½ä¸ä¸ªçæ¬è¾é«çtomcatï¼æ¯å¦4.1ä»¥ä¸çï¼å ä¸ºå®ä¸éè¦è®¾ç½®å¤ªå¤çç³»ç»åéï¼å³å»"æççµè"ï¼éæ©"å±æ§"->"é«çº§"->"ç¯å¢åé"->"ç³»ç»åé"ï¼æ°å»ºä¸ä¸ªTOMCAT_HOMEï¼å¼è®¾ç½®æä½ çtomcatæå¨çè·¯å¾ï¼æ¯å¦ï¼D:\Program Files\Apache Group\Tomcat 5.5ï¼éç½®å®æã

åæ¥äº«åä¸ä¸æåçåæ¦å§ï¼è¯·è¾å¥ä¸é¢çä»£ç ï¼

<html>
<head>
<title>First Page</title>
</head>
<body>
<H3>Today is: h
<%= new java.util.Date() %>
</H3>
</body>
</html>

å°è¯¥ç¨åºä¿åä¸º:First.jspï¼æ¾å°TomcatçROOTç®å½ä¸ï¼ç¶åå¨æµè§å¨çå°åæ ä¸è¾å¥ï¼http://localhost:8080/First.jspï¼(First.jspè·æä»¬ä¿åçæä»¶åçå¤§å°åè¦ä¸è´)åè½¦ï¼å¦æä¸åºæå¤ï¼åºè¯¥å¯ä»¥çå°å½¢å¦Today is: h Fri Apr 11 08:32:38 CST 2003 çç»æã

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</Context>
</Host>

</Context>
<Context path="/myjsp" debug="0" docBase="e:/myjsp" reloadable="true">
</Context>
</Host>

è¿éçpath="/myjsp"å°±æ¯æä»¬å°±éç½®çèæç®å½äºï¼ä»¥åå¨å°åæ ä¸è¾å¥http://localhost:8080/myjspå³å¯ãèdocBase="e:/myjsp" åæ¯æºå¨æ¬å°è·¯å¾ï¼ä»ä»¬éè¿è¿ä¸ªè¯å¥å½¢æä¸ä¸ªæ å°å³ç³»ï¼å¶å®ç§æã

å°ä¸é¢çFirst.jspæä»¶æ¾å°e:/myjspç®å½ä¸ï¼è¾å¥http://localhost:8080/myjsp/First.jspï¼æ¯ä¸æ¯æä¸ç§åä¸çæ¢¢çæè§ï¼

åå»ºç«ä¸ä¸ªjavaç¨åºï¼ä»£ç å¦ä¸ï¼

package hall;
public class SimpleBean {
private String message = "No message specified";
public String getMessage() {
return(message);
}
public void setMessage(String message) {
this.message = message;
}
}

åè¾å¥ä»¥ä¸ä»£ç ï¼

<HTML>
<HEAD>
<TITLE>Reusing JavaBeans in JSP</TITLE>
</HEAD>
<BODY>
<CENTER>
<TABLE BORDER=5>
<TR><TH CLASS="TITLE">
Reusing JavaBeans in JSP</TABLE>
</CENTER>
<P>
<jsp:useBean id="test" class="hall.SimpleBean" />
<jsp:setProperty name="test" property="message" value="Hello WWW" />
<H1>Message: <I>
<jsp:getProperty name="test" property="message" />
</I></H1>
</BODY>

ä¿åå¨æä»¬åæå»ºç«çèæç®å½e:/myjspä¸é¢ï¼å¹¶å½åä¸ºï¼BeanTest.jspã