E序来测?/span>J2SDK是否已安装成功:
public class Test{
public static void main(String args[]){
System.out.println("This is a test program.");
}
}
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上面的q段E序保存为文件名?/span>Test.java的文件?/span>
然后打开命o提示W窗口,cdC?/span>Test.java所在目录,然后键入下面的命?/span>
javac Test.java
java Test
此时如果看到打印出来This is a test program.的话说明安装成功了,如果没有打印句话Q你需要仔l检查一下你的配|情c?/span>
2.安装Tomcat后,在我的电(sh)?/span>->属?/span>->高->环境变量->pȝ变量中添加以下环境变?/span>(假定你的tomcat安装?/span>c:\tomcatQ:
CATALINA_HOMEQ?/span>c:\tomcat
CATALINA_BASEQ?/span>c:\tomcat
TOMCAT_HOME: C:\Tomcat
然后修改环境变量中的classpathQ把tomat安装目录下的common\lib下的servlet.jarq加?/span>classpath中去Q修改后?/span>classpath如下Q?/span>
classpath=.;%JAVA_HOME%\lib\dt.jar;%JAVA_HOME%\lib\tools.jar;%CATALINA_HOME%\common\lib\servlet-api.jar;
【注意最新版本的Tomcat中可能没有commonq个文g夹了。所以servlet-api.jar应该的\径ؓ
%CATALINA_HOME%\lib\servlet-api.jar;h据自q情况自己修改Q?/span>?/span>
接着可以启动tomcatQ在IE中访?/span>http://localhost:8080Q如果看?/span>tomcat的欢q页面的话说明安装成功了?/span>
W三?/span>Q徏立自qjsp app目录
1.?/span>Tomcat的安装目录的webapps目录Q可以看?/span>ROOTQ?/span>examples, tomcat-docs之类Tomcat自带的的目录Q?/span>
2.?/span>webapps目录下新Z个目录,起名?/span>myappQ?/span>
3.myapp下新Z个目?/span>WEB-INFQ注意,目录名称是区分大写的;
4.WEB-INF下新Z个文?/span>web.xmlQ内容如下:
<?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>
</web-app>
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5.?/span>myapp下新Z个测试的jsp面Q文件名?/span>index.jspQ文件内容如下:
<html>
<body>
<center>
Now time is: <%=new java.util.Date()%>
</center>
</body>
</html>
|
6.重启Tomcat
7.打开览器,输入http://localhost:8080/myapp/index.jsp 看到当前旉的话说明成功了?/span>
W四?/span>Q徏立自qServletQ?br />
写入你的W一个Servlet:
在你新徏的Application myapp/WEB-INF/classes/test目录下新建HelloWorld.java
package test;
import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;
public class HelloWorld extends HttpServlet
{
public void doGet(HttpServletRequest request,HttpServletResponse response)th
rows ServletException,IOException
{
response.setContentType("text/html");
PrintWriter out = response.getWriter();
out.println("<html><head><title>");
out.println("This is my first Servlet");
out.println("</title></head><body>");
out.println("<h1>Hello,World!</h1>");
out.println("</body></html>");
}
}
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然后照样?/font>javac HelloWorld.java来编译这个文Ӟ如果出现无法import javax.servl
et.*
那么是应该把C:\Tomcat\common\lib里面?/font>servlet-api.jar文g拯到C:\JDK\jre\lib\ext中,再次~译Q就没有问题了!
然后在Tomcat目录里面的C:\Tomcat\webapps\myapp里面按如下的文gl构Q?br />
myapp\index.jsp
myapp\WEB-INF\classes\test\HelloWorld.class(把上面生成的HelloWorld.class文g攑֜q个
里面)
然后在浏览器中输?/font>http://localhost:8080/myapp/HelloWorld,于是Server众望所归的报错?Error 404--Not Found
怎么回事呢?
Servlet必须使用C:\Tomcat\webapps\myapp\WEB-INFq个目录下面的web.xml文gq行注册Q?br />
用EditPlus打开q个web.xml文gQ?br />
?lt;web-app></web-app>d下面q段E序:
<servlet>
<servlet-name>HelloWorld</servlet-name>
<servlet-class>test.HelloWorld</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>HelloWorld</servlet-name>
<url-pattern>/HelloWorld</url-pattern>
</servlet-mapping>
|
Z么呢Q?br />
因ؓ q样的结?br />
<servlet>
<servlet-name>HelloWorld</servlet-name>
<servlet-class>test.HelloWorld</servlet-class>//cȝ路径
</servlet>
表示指定包含的servletc?
而以下的l构
<servlet-mapping>
<servlet-name>HelloWorld</servlet-name>
<url-pattern>/HelloWorld</url-pattern>
</servlet-mapping>
表示指定HelloServlet应当映射到哪一UURL模式?/font>
在修改web.xml完毕q后Q重新启动ServerQ然后再输入http://localhost:8080/myapp/HelloWorld,Q那么偌大一个Hello,World!{?br />
着你呢Q恭喜你!
W五?/span>Q徏立自己java Bean
1. 在你新徏的Application myapp/WEB-INF/classes/test目录下新建TestBean.java
package test;
public class TestBean
{
private String name =null;
public TestBean(String nameInit){
this.name = nameInit;
}
public void setName(String newName){
this.name=newName;
}
public String getName(){
return this.name;
}
}
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然后照样?font color="#ff9900">javac TestBean.java来编译这个文件?/font>
2.然后在你新徏的应用程序目?font color="#ff0000">myapp下新Z个新的jsp文gQtestBean.jsp
<%@ page import="test.TestBean" %>
<html>
<head>
<title>Test Bean</title>
</head>
<body>
<center>
<%
TestBean testBean = new TestBean("Http://yexin218.cublog.cn");
%>
Java Bean Test:
The author's blog address is<%=testBean.getName()%>
</center>
</body>
</html>
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好了Q确定各个文件的位置Q?/font>
myapp\index.jsp
myapp\testBean.jsp
myapp\WEB-INF\web.xml
myapp\WEB-INF\classes\test\HelloWorld.class
myapp\WEB-INF\classes\test\TestBean.class
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3.重启Tomcat如果需要的话,在浏览器输入:http://localhost:8080/myapp/testBean.jsp q运的话׃看到:
Java Bean Test: The author's blog address isHttp://yexin218.cublog.cn
q样完成了整个Tomcat下的jsp、servlet和javabean的配|?/font>
W六步:配置虚拟目录
打开 Tomcat6.0\conf\server.xml 文gQ在 <Host> ?</Host> 之间加入
<Context path="/myapp" docBase="D:\myapp" debug="0" reloadable="true" crossContext="true" />
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]]>