验证码问题

程序需要做一个模拟提交form的功能去访问另一个网站，在登录的form里发现了
<input type="hidden" name="verifyCodeKey" value="$verifyCodeKey" />
试过直接提交$verifyCodeKey无法打开另一个网站，另一个网站使用java做的,而且在登录页的脚本里没有发现jquery
请问我需要如何才能正确的取到$verifyCodeKey值

解决方案 »

  1.   

        <td align="right">验证码</td>
        <td><input name="verifyCode" type="text" AUTOCOMPLETE="off" class="login_codetext" size="4" maxlength="4" />
                        <img src="/insms/getImgVerify2" width="60" height="28" align="absmiddle" /></td>
        <input type="hidden" name="verifyCodeKey" value="$verifyCodeKey" />
      

  2.   

    verifyCode是填写图片识别的地方这个verifyCodeKey用的是隐藏域，不知道里面应该传什么
      

  3.   

    装一个fiddler,很容易发现你要post的数据结构
      

  4.   

    JavaScript 传值 http://www.hack97.com/article/ruqin/979.html
      

  5.   

    [code=JSP]
    <%@ page language="java" contentType="text/html; charset=UTF-8"
        pageEncoding="UTF-8"%>
    <!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=UTF-8">
    <title>登入</title>
    </head>
    <body>
    <form action="Login" method="post">
    <table align="center">
    <tr><td>登陆名称：</td><td><input type="text" name="loginName"></td></tr>
      <tr><td>登陆密码：</td><td><input type="password" name="loginPwd"></td></tr>
      <tr><td>验  证   码：</td><td><input type="text" name="loginCode"><img src="GetPic" border="1"></td></tr>
    <tr><td coispan="2" align="center"><input type="submit" name="btnLogin"value="登入"><input type="reset" name="btnCancel"value="取消"></td></tr>
    </table>
    </form>
    </body>
    </html>
    [/code]
      

  6.   

    import java.awt.Color;
    import java.awt.Font;
    import java.awt.Graphics;
    import java.awt.image.BufferedImage;
    import java.io.IOException;
    import java.util.Random;import javax.imageio.ImageIO;
    import javax.servlet.ServletException;
    import javax.servlet.ServletOutputStream;
    import javax.servlet.http.HttpServlet;
    import javax.servlet.http.HttpServletRequest;
    import javax.servlet.http.HttpServletResponse;
    import javax.servlet.http.HttpSession;/**
     * Servlet implementation class GetPic
     */
    public class GetPic extends HttpServlet {
    private static final long serialVersionUID = 1L;
           
        /**
         * @see HttpServlet#HttpServlet()
         */
        public GetPic() {
            super();
            // TODO Auto-generated constructor stub
        } /**
     * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
     */
    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
    // TODO Auto-generated method stub
    response.setContentType("image/jpeg");
    BufferedImage image=new BufferedImage(60,30,BufferedImage.TYPE_INT_RGB);
    Graphics g=(Graphics)image.getGraphics();
    g.setColor(Color.white);
    g.fillRect(0, 0, 120, 80);
    String validCode=funGetRandNum();
    HttpSession session=request.getSession();
    session.setAttribute("validCode", validCode);
    g.setColor(Color.RED);
    g.setFont(new Font("黑体",24,20));
    g.drawString(validCode, 10, 20);
    ServletOutputStream out=response.getOutputStream();
    try{
    ImageIO.write(image, "jpg", out);
    }catch(IOException ex){}
    }

    private String funGetRandNum()
    {
    String source="1234567890abcdefghiklmvysz";
    String retStr="";
    Random rnd=new Random();
    for(int i=0;i<4;i++)
    {
    int k=Math.abs(rnd.nextInt());
    k=k%source.length();
    retStr=retStr+source.charAt(k);

    }

    return retStr;

    }
    /**
     * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
     */
    protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
    // TODO Auto-generated method stub
    doGet(request,response);
    }}
      

  7.   

    不是外网的问题,应该是来源页面地址或者Cookie的问题或者其它问题
      

  8.   


    import java.io.IOException;import javax.servlet.ServletConfig;
    import javax.servlet.ServletException;
    import javax.servlet.http.HttpServlet;
    import javax.servlet.http.HttpServletRequest;
    import javax.servlet.http.HttpServletResponse;
    import javax.servlet.http.HttpSession;/**
     * Servlet implementation class Login
     */
    public class Login extends HttpServlet {
    private static final long serialVersionUID = 1L;
           
        /**
         * @see HttpServlet#HttpServlet()
         */
        public Login() {
            super();
            // TODO Auto-generated constructor stub
        } /**
     * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
     */
    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
    // TODO Auto-generated method stub
    doPost(request,response);
    } /**
     * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
     */
    protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
    // TODO Auto-generated method stub
    String userName=request.getParameter("loginName");
    String userPwd=request.getParameter("loginPwd");
    String userCode=request.getParameter("loginCode");

    ServletConfig sc= this.getServletConfig();
    String saveUserName=sc.getInitParameter("userName");
    String saveUserPwd=sc.getInitParameter("userPwd");
    HttpSession session=request.getSession();
    String saveUserCode=session.getAttribute("validCode").toString(); if(userName.equals(saveUserName)&& userPwd.equals(saveUserPwd)&& userCode.equals(saveUserCode))
    {
    session.setAttribute("UserName", userName);
    response.sendRedirect("./admin/index.jsp");
    }
    else
    {
    response.sendRedirect("./index.jsp");
    }
    }}
      

  9.   


    import java.io.IOException;
    import javax.servlet.Filter;
    import javax.servlet.FilterChain;
    import javax.servlet.FilterConfig;
    import javax.servlet.ServletException;
    import javax.servlet.ServletRequest;
    import javax.servlet.ServletResponse;
    import javax.servlet.http.HttpServletRequest;
    import javax.servlet.http.HttpServletResponse;
    import javax.servlet.http.HttpSession;/**
     * Servlet Filter implementation class ValidLogin
     */
    public class ValidLogin implements Filter {    /**
         * Default constructor. 
         */
        public ValidLogin() {
            // TODO Auto-generated constructor stub
        } /**
     * @see Filter#destroy()
     */
    public void destroy() {
    // TODO Auto-generated method stub
    } /**
     * @see Filter#doFilter(ServletRequest, ServletResponse, FilterChain)
     */
    public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {
    // TODO Auto-generated method stub
    // place your code here
    HttpServletRequest hsr=(HttpServletRequest)request;
    HttpSession session=hsr.getSession();
    if(session.getAttribute("UserName")!=null)
    {
    // pass the request along the filter chain
    chain.doFilter(request, response);
    }
    else
    {
    HttpServletResponse hresponse=(HttpServletResponse)request;
    hresponse.sendRedirect("../index.jsp");
    }
    } /**
     * @see Filter#init(FilterConfig)
     */
    public void init(FilterConfig fConfig) throws ServletException {
    // TODO Auto-generated method stub
    }}
      

  10.   


    <?xml version="1.0" encoding="UTF-8"?>
    <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5">
      <display-name>Example</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>
      <servlet>
        <description></description>
        <display-name>GetPic</display-name>
        <servlet-name>GetPic</servlet-name>
        <servlet-class>GetPic</servlet-class>
      </servlet>
      <servlet-mapping>
        <servlet-name>GetPic</servlet-name>
        <url-pattern>/GetPic</url-pattern>
      </servlet-mapping>
      <servlet>
        <description></description>
        <display-name>Login</display-name>
        <servlet-name>Login</servlet-name>
        <servlet-class>Login</servlet-class>
        <init-param>
         <param-name>userName</param-name>
         <param-value>guest</param-value>
        </init-param>
         <init-param>
         <param-name>userPwd</param-name>
         <param-value>123456</param-value>
        </init-param>
      </servlet>
      <servlet-mapping>
        <servlet-name>Login</servlet-name>
        <url-pattern>/Login</url-pattern>
      </servlet-mapping>
      <filter>
        <display-name>ValidLogin</display-name>
        <filter-name>ValidLogin</filter-name>
        <filter-class>ValidLogin</filter-class>
      </filter>
      <filter-mapping>
        <filter-name>ValidLogin</filter-name>
        <url-pattern>/admin/*</url-pattern>
      </filter-mapping>
    </web-app>
      

  11.   

    谢谢大家的热心回复，先把要做成自动登录的网址发出来，高手有空帮忙看一下
    http://221.238.6.120:8070/insms/dealer/en/loginin.do
      

  12.   

    http://221.238.6.120:8070/insms/dealer/en/loginin.do
      

  13.   

    附上参考资料http://writeblog.csdn.net/PostList.aspx?_t_=fyv45qyg