高分求助一个关于“URL重写”的问题！！！谢谢指点！

可能是step2位置中指向的servlet没定义post方法
检查了半天还是没搞定，我把源码贴上来大家帮忙看一下：（STEP1。JAVAimport java.io.*;
import java.util.*;
import javax.servlet.*;
import javax.servlet.http.*;public class Step1 extends HttpServlet
{
    public Step1()
    {
    }    public void doGet(HttpServletRequest request, HttpServletResponse response) throws
IOException, ServletException
    {
HttpSession session = request.getSession();
displayPage(request, response);
    }    public void displayPage(HttpServletRequest request,
    HttpServletResponse response) throws IOException
    {
response.setContentType("text/html;charset=gb2312");
PrintWriter out = response.getWriter(); out.println("<html>");
out.println("<head>");
out.println("<title>Step 1:选择要购买的书籍</title>");
out.println("</head>");
out.println(
    "<meta http-equiv=Content-Type content=text/html;charset=GB2312>");
out.println("<body>");
out.println("<b><font size=4>Step 1:选择要购买的书籍</font></b>"); out.println("<form action='"+response.encodeURL("Step2")+"' method='POST'>");
out.println("<table border=1 width=80%>");
out.println("<tr>");
out.println("<td align=center bgcolor=#008080>");
out.println("<font color=#ffffff>书名</font>");
out.println("</td>");
out.println("<td align=center bgcolor=#008080>");
out.println("<font color=#ffffff>购买</font>");
out.println("</td>");
out.println("</tr>");。以下HTML代码略。STEP2。JAVA
import java.io.*;
import java.util.*;
import javax.servlet.*;
import javax.servlet.http.*;public class Step2 extends HttpServlet
{
    public Step2()
    {
    }    public void doPost(HttpServletRequest request, HttpServletResponse response) throws
IOException, ServletException
    {
processStep1(request, response);
displayPage(request, response);
    }    public void processStep1(HttpServletRequest request,
     HttpServletResponse response)
    {
HttpSession session = request.getSession();
String b[] = request.getParameterValues("buy");
books booksWanted = new books(b);
session.setAttribute("A_booksWanted", booksWanted);
    }    public void displayPage(HttpServletRequest request,
    HttpServletResponse response) throws IOException
    {
response.setContentType("text/html;charset=gb2312");
PrintWriter out = response.getWriter(); out.println(" <title>Step 2:输入寄送地址与信用卡信息</title>");
out.println(
    "    <meta http-equiv=content-type content=text/html;charset=gb2312>");
out.println("    <style type=text/css>");
out.println("    ");
out.println("    </style>"); out.println("    <p>Step 2:输入寄送地址与信用卡信息</p>");
out.println("    <form name=form1 method=post action="+response.encodeURL("Confirm2")+">");
out.println("      <table width=80%  border=1>");
out.println(" <tr bgcolor=#008080>");
out.println("   <td colspan=2><span class=style1>基本信息</span></td>");
out.println(" </tr>");
以下HTML代码略。CONFIRM2。JAVA：public class Confirm2 extends HttpServlet
{
    public Confirm2()
    {
    }    public void doPost(HttpServletRequest request, HttpServletResponse response) throws
IOException, ServletException
    {
processStep2(request, response);
displayPage(request, response);
    }    public void processStep2(HttpServletRequest request,
     HttpServletResponse response) throws IOException
    {
HttpSession session = request.getSession(true);
String customername = new String(request.getParameter("customername").
getBytes("iso-8859-1"));
//byte[] java.lang.String.getBytes(String charsetName);以getBytes("iso-8859-1")方法取出以避免中文字的转码问题
String address = new String(request.getParameter("address").getBytes(
    "iso-8859-1"));
String credittype = request.getParameter("credittype");
String expiredate = request.getParameter("expiredate");
String creditno = request.getParameter("creditno"); session.setAttribute("A_customername", customername);
session.setAttribute("A_address", address);
session.setAttribute("A_credittype", credittype);
session.setAttribute("A_expiredate", expiredate);
session.setAttribute("A_creditno", creditno);    }    public void displayPage(HttpServletRequest request,
    HttpServletResponse response) throws IOException
    {
response.setContentType("text/html;charset=gb2312");
PrintWriter out = response.getWriter();
HttpSession session = request.getSession(true); books booksWanted = (books) session.getAttribute("A_booksWanted");
String customername = (String) session.getAttribute("A_customername");
String address = (String) session.getAttribute("A_address");
String credittype = (String) session.getAttribute("A_credittype");
String creditno = (String) session.getAttribute("A_creditno");
String expiredate = (String) session.getAttribute("A_expiredate");。谢谢各位~
搞定了。原来out.println("    <form name=form1 method=post action="+response.encodeURL("Confirm2")+">");这句要加两个单引号。= =b
SERVLET和JSP不像ASP那样可以把所有的引号都去掉啊~~~

调试易

高分求助一个关于“URL重写”的问题！！！谢谢指点！

解决方案 »