小编Har*_*esh的帖子

如何隐藏.jsp扩展名或更改URL上的显示名称？

我正在使用servlet-jsp通信.我的web.xml代码是

<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
    <servlet>
        <servlet-name>pub</servlet-name>
        <jsp-file>/publications.jsp</jsp-file>
    </servlet>
    <servlet-mapping>
        <servlet-name>pub</servlet-name>
        <url-pattern>/publications</url-pattern>
    </servlet-mapping>
    <servlet>
        <servlet-name>SciArchive</servlet-name>
        <servlet-class>controller.SciArchiveController</servlet-class>
    </servlet>
    <servlet-mapping>
        <servlet-name>SciArchive</servlet-name>
        <url-pattern>*.sci</url-pattern>
    </servlet-mapping>
    <welcome-file-list>
        <welcome-file>home.jsp</welcome-file>
    </welcome-file-list>
</web-app>

我想隐藏的URL的.jsp extenstion ..../SciArchive/publications.jsp 到..../SciArchive/publications

当我点击注销按钮时,我希望清除浏览器缓存.

我正在尝试使用以下代码清除浏览器缓存:

if(uri.equals("/SciArchive/logout.sci"))
    {
        HttpSession session=req.getSession(false);
         res.setHeader("Cache-Control","no-cache"); 
             res.setHeader("Cache-Control","no-store"); 
             res.setDateHeader("Expires", 0); 
             res.setHeader("Pragma","no-cache"); 
        if(session!=null)
        {
            session.invalidate();
            rd=req.getRequestDispatcher("/home.jsp");               
        }

        rd.forward(req,res);
        return;
    }

注销后在浏览器窗口中按下后退按钮时,我需要浏览器不显示上一页.

当我点击后退按钮时,它显示上一页,点击浏览器窗口中的前进按钮后显示document expired.

请给我建议,以清除此错误!

我使用以下代码从数据库获取用户表值

 <%
String userid=(String)session.getAttribute("userid");
Connection con=Singleton.getMySqlConnection();
Statement st=con.createStatement();
ResultSet rs=st.executeQuery("select * from user where mail='"+userid+"'");
%>

并在jsp页面中显示值，例如

<%while(rs.next()){%>

     <div class="divRegTableColF"><label for="USER_FIRST_NAME">First name: </label></div>
     <%if((rs.getString(2))!=null){%>
     <div class="divRegTableColS"><span> <input class="inputRegBox" name="fname" id="USER_FIRST_NAME" size="60" maxlength="50" value="<%=rs.getString(2)%>"></span>
     </div>
     <%}
     else
     {%>
     <input class="inputRegBox" name="fname" id="USER_FIRST_NAME" size="60" maxlength="50" value=""></span><span class="astRegPad"><font color="#000000">*</font>
     <%}%>


<select class="inputRegBox" name="country" size=1 maxlength=30 value="<%=rs.getString(13)%>">   
    <option>select</option>
    <option >Afghanistan</option>
    <option >Aland Islands</option>
    <option>Albania</option>
    <option>Algeria</option>
    <option>American Samoa</option>
    <option>Andorra</option>
    <option>Angola</option>
    <option>Anguilla</option>
    <option>Antarctica</option>
    <option>Antigua and Barbuda</option>
    <option>Argentina</option>
    <option>Armenia</option>
    <option>Aruba</option>
    <option>Australia</option>
    <option>Austria</option>
    <option>Azerbaijan</option>
    <option>Bahamas</option>
    <option>Bahrain</option>
    <option>Bangladesh</option>
    <option>Barbados</option> …