Java使用Servlet和Web项目时出现问题
[英]problem when using servlet and web project with java
问题描述
i have just started using servlet. 
我刚刚开始使用servlet。 basically i am new to web projects. 基本上，我是Web项目的新手。 I am using eclipse as development IDE. 我正在使用eclipse作为开发IDE。 In that i have created a dynamic web project, in the same i added one html page viz Main.html with the following sript:_ 为此，我创建了一个动态Web项目，在同一项目中，我添加了一个html页面，即Main.html，带有以下代码：_
<!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=ISO-8859-1">
<title>Main page</title>
</head>
<body>
<b>this is the first page</b>
</body>
</html>
and following is my web.xml 以下是我的web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app id="WebApp_ID" version="2.4" xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">
<display-name>ServletProject</display-name>
<welcome-file-list>
<welcome-file>index.html</welcome-file>
<welcome-file>index.htm</welcome-file>
<welcome-file>index.jsp</welcome-file>
<welcome-file>default.html</welcome-file>
<welcome-file>default.htm</welcome-file>
<welcome-file>default.jsp</welcome-file>
</welcome-file-list>
</web-app>
i am using tomcat 6.0 as web container, in eclipse only i have integrated tomcat and have added the web project in it. 我正在使用tomcat 6.0作为Web容器，仅在Eclipse中，我已经集成了tomcat并在其中添加了Web项目。 The server is getting started properly. 服务器正常启动。 When i am trying to access the Main.html page, i am not getting anything on the browser, in the tomcat server configuration, there are two ports, one is admin port and other is HTML/1.1 port and value is 8005 and 8080 respectively. 当我尝试访问Main.html页面时，浏览器上没有任何内容，在tomcat服务器配置中，有两个端口，一个是admin端口，另一个是HTML / 1.1端口，值分别是8005和8080 。 When i am using http://localhost:8005/Main.html i am getting nothing one the web browser, but when i use http://localhost:8080/Main.html i get some tomcat error. 当我使用http://localhost:8005/Main.html时，Web浏览器什么都没有得到，但是当我使用http://localhost:8080/Main.html我得到了一些tomcat错误。
is there something i am missing. 有什么我想念的。 I am unable to figure it out. 我无法弄清楚。 Please help me. 请帮我。
2 个解决方案
解决方案1
3 已采纳 2010-11-12 06:40:05
Edit: Ah yeah, you need to use the ServletProject as url-pattern.. Try to access the file with the following URL: http://localhost:8080/ServletProject/Main.html 编辑：是的，您需要使用ServletProject作为url-pattern。尝试使用以下URL访问文件： http：// localhost：8080 / ServletProject / Main.html
You need to configure your application properly in the web.xml file and if you want to use later a Java class and use it as a Servlet you have to define this in the web.xml like that: 您需要在web.xml文件中正确配置您的应用程序，如果您以后要使用Java类并将其用作Servlet，则必须在web.xml中进行如下定义：
<servlet>
<servlet-name>CurrencyConverter</servlet-name>
<servlet-class>servlets.Converter</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>CurrencyConverter</servlet-name>
<url-pattern>/convert</url-pattern>
</servlet-mapping>
The url pattern defines the path you can access it later. 网址格式定义了以后可以访问的路径。 To access the CurrencyConverter in the above code you need to use this url: http://localhost:8080/convert 要在上面的代码中访问CurrencyConverter，您需要使用以下URL： http：// localhost：8080 / convert
Yeah and it would be good when you could show us the error you get.. 是的，当您能向我们展示您遇到的错误时，那就太好了。
解决方案2
2 2010-11-12 07:00:38
The URL should be http://localhost:8080/ServletProject/Main.html . 该URL应该是http://localhost:8080/ServletProject/Main.html 。 Where ServletProject is your application context. 其中ServletProject是您的应用程序上下文。
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