编译好java文件后，http://localhost:8888/servlet/HelloWorld里面还是浏览不出来

http://localhost:8888/HelloWorld
试试
servlet是你的包的路径
你现在没有在包里D:\Program Files\tomcat-4.1.24\webapps\ROOT\WEB-INF\classes\servlet\HelloWorld.class
http://localhost:8888/servlet/HelloWorld

解决方案 »

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楼上的，两种方法我都试过了，还是一样会报错啊
type Status reportmessage /servlet/HelloWorlddescription The requested resource (/servlet/HelloWorld) is not available.
你的HelloWorld.java 怎么写的,有包(package)吗?
HellowWord写成小写试试：
/servlet/helloworld
路径问题吧？
你的HelloWorld.class在classes下么？
这是我的HelloWorld.java：javac通过了的
import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;class  HelloWorld  extends HttpServlet
{
public void init(ServletConfig config) throws ServletException
{
super.init(config);
} public void destroy()
{
super.destroy();
} public void service(HttpServletRequest req, HttpServletResponse resp) throws ServletException ,IOException
{
resp.setContentType("text/html");
PrintWriter out=new PrintWriter(resp.getOutputStream());
out.println("<html>");
out.println("<head><title>Hello World Output</title></head>");
out.println("<body>");
out.println("hello world");
out.println("</body>");
out.println("</html>");
out.close();
}}
如果放在servlet下
要加个包
package servlet;
在最前边
在web.xml中加入：
<servlet-mapping>
       <servlet-name>invoker</servlet-name>
       <url-pattern>/servlet/*</url-pattern>
</servlet-mapping>
try again!:)
楼上所有的方法我都试过了
都是一样的错误谁能给我一个简单的能在浏览器里调用java的例子
如果是Tomcat
在web.xml中加入：
<servlet-mapping>
       <servlet-name>invoker</servlet-name>
       <url-pattern>/servlet/*</url-pattern>
</servlet-mapping>
还是不行的话,这样
  <servlet>
    <servlet-name>hello</servlet-name>
    <servlet-class>HelloWorld</servlet-class>
  </servlet>
  <servlet-mapping>
    <servlet-name>hello</servlet-name>
    <url-pattern>/hello</url-pattern>
  </servlet-mapping>
然后 http://127.0.0.1/hello访问
正如楼上说的，只要配置一下web.xml文件。就可以访问。
给你一个全的web.xml配置文件。
<?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>
  <servlet>
    <servlet-name>ExampleServlet</servlet-name>
    <servlet-class>com.wrox.servlets.ExampleServlet</servlet-class>
  </servlet>
  <servlet-mapping>
    <servlet-name>ExampleServlet</servlet-name>
    <url-pattern>/ExampleServlet</url-pattern>
  </servlet-mapping>
  <session-config>
    <session-timeout>30</session-timeout>
  </session-config>
</web-app>
其中ExampleServlet 如下：
package com.wrox.servlets;
import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;
public class ExampleServlet extends HttpServlet {
  public void doGet(HttpServletRequest request,
                     HttpServletResponse response)
          throws ServletException, IOException {
    PrintWriter out;
    String title = "Servlet Example";
    response.setContentType("text/html");
    out = response.getWriter();
    out.println("<html><head><title>");
    out.println(title);
    out.println("</title></head><body>");
    out.println("<h1>This is an example servlet.</h1>");
    out.println("</body></html>");
    out.close();
  }  public void doPost(HttpServletRequest request,
                      HttpServletResponse response)
          throws ServletException, IOException {
    doGet(request, response);
  }
}
然后地址栏输入：http://127.0.0.1:8080/虚拟目录(应用程序目录)/ExampleServlet
to  hhuzhj(阿金) :
我用的是tomcat发布的请问我要把ExampleServlet.java这个文件建立在哪个目录下？
我建在了D:\Program Files\tomcat-4.1.24\webapps\ROOT\WEB-INF\classes目录下
在dos下的D:\Program Files\tomcat-4.1.24\webapps\ROOT\WEB-INF\classes下，用javac ExampleServlet.java也通过了D:\Program Files\tomcat-4.1.24\conf下的web.xml我也删除掉，直接用你给我的代码新建了一个然后我访问
http://localhost:8888/servlet/ExampleServlet
http://localhost:8888/ExampleServlet
还是都出不来啊HTTP Status 404 - /servlet/ExampleServlet--------------------------------------------------------------------------------type Status reportmessage /servlet/ExampleServletdescription The requested resource (/servlet/ExampleServlet) is not available.
我发现我改错了文件
我现在把
D:\Program Files\tomcat-4.1.24\webapps\ROOT\WEB-INF\web.xml按你说的改
了，然后再访问http://localhost:8888/ExampleServlet出现了另外一个错误：
HTTP Status 503 - Servlet ExampleServlet is currently unavailable--------------------------------------------------------------------------------type Status reportmessage Servlet ExampleServlet is currently unavailabledescription The requested service (Servlet ExampleServlet is currently unavailable) is not currently available.
我现在把web.xml改成了
<!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>Welcome to Tomcat</display-name>
  <description>
     Welcome to Tomcat
  </description>  <servlet-mapping>
       <servlet-name>invoker</servlet-name>
       <url-pattern>/servlet/*</url-pattern>
</servlet-mapping></web-app>现在我访问
http://localhost:8888/servlet/ExampleServlet
http://localhost:8888/servlet/HelloWorld都出现500的错误了：
type Exception reportmessage description The server encountered an internal error () that prevented it from fulfilling this request.exception javax.servlet.ServletException: Cannot allocate servlet instance for path /servlet/ExampleServletjava.lang.NoClassDefFoundError: ExampleServlet (wrong name: com/wrox/servlets/ExampleServlet)这个问题怎么解决？