紧急求助，新手上路希望大家帮忙！！！
程序的源代码如下：
package mypack;
import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;
import java.util.*;
public class DispatchServlet extends HttpServlet{
private String target= "/hello.jsp ";
public void init(ServletConfig config)
throws ServletException{
super.init(config);
}
public void doGet(HttpServletRequest request,
HttpServletResponse response)
throws ServletException,IOException{
//If it is a get request forward to doPost()
doPost(request,response);
}
public void doPost(HttpServletRequest request,
HttpServletResponse response)
throws ServletException,IOException{
//Get the username from the request
String username=request.getParameter( "username ");
//Get the password=request.getParamerer( "password ")
String password=request.getParameter( "password ");
//Add the user to the request
request.setAttribute( "USER ",username);
request.setAttribute( "PASSWORD ",password);
//Forward the request to the target named
ServletContext context=getServletContext();
System.out.println( "Redirecting to "+target);
RequestDispatcher dispatcher=
context.getRequestDispatcher(target);
dispatcher.forward(request,response);
}
public void destroy(){
}
}
错误的地方如下！
D:\javawork\12.java:6: class DispatchServlet is public, should be declared in a file named DispatchServlet.java
public class DispatchServlet extends HttpServlet{
^
D:\javawork\12.java:2: package javax.servlet does not exist
import javax.servlet.*;
^
D:\javawork\12.java:3: package javax.servlet.http does not exist
import javax.servlet.http.*;
^
D:\javawork\12.java:6: cannot find symbol
symbol: class HttpServlet
public class DispatchServlet extends HttpServlet{
^
D:\javawork\12.java:8: cannot find symbol
symbol : class ServletConfig
location: class mypack.DispatchServlet
public void init(ServletConfig config)
^
D:\javawork\12.java:9: cannot find symbol
symbol : class ServletException
location: class mypack.DispatchServlet
throws ServletException{
^
D:\javawork\12.java:12: cannot find symbol
symbol : class HttpServletRequest
location: class mypack.DispatchServlet
public void doGet(HttpServletRequest request,
^
D:\javawork\12.java:13: cannot find symbol
symbol : class HttpServletResponse
location: class mypack.DispatchServlet
HttpServletResponse response)
^
D:\javawork\12.java:14: cannot find symbol
symbol : class ServletException
location: class mypack.DispatchServlet
throws ServletException,IOException{
^
D:\javawork\12.java:18: cannot find symbol
symbol : class HttpServletRequest
location: class mypack.DispatchServlet
public void doPost(HttpServletRequest request,
^
D:\javawork\12.java:19: cannot find symbol
symbol : class HttpServletResponse
location: class mypack.DispatchServlet
HttpServletResponse response)
^
D:\javawork\12.java:20: cannot find symbol
symbol : class ServletException
location: class mypack.DispatchServlet
throws ServletException,IOException{
^
D:\javawork\12.java:10: cannot find symbol
symbol : variable super
location: class mypack.DispatchServlet
super.init(config);
^
D:\javawork\12.java:29: cannot find symbol
symbol : class ServletContext
location: class mypack.DispatchServlet
ServletContext context=getServletContext();
^
D:\javawork\12.java:29: cannot find symbol
symbol : method getServletContext()
location: class mypack.DispatchServlet
ServletContext context=getServletContext();
^
D:\javawork\12.java:31: cannot find symbol
symbol : class RequestDispatcher
location: class mypack.DispatchServlet
RequestDispatcher dispatcher=
^
16 errors
[解决办法]
1.文件名命名错误，应该命名为：DispatchServlet.java
2.classpath中的包不够，增加j2ee.jar或（servlet.jar和jsp.jar）。
[解决办法]
从头好好细学一下吧，这些问题都是学ＪＡＶＡ时一开始就强调的事情。
[解决办法]
标准答案=====inkfish(邬贼) ( ) 信誉：100
搂主要虚心学习哦...
