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JSP: Include parameter transfer receiving and Application

Source: Internet
Author: User
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First look at a simple application, inA. jspWrite the following code

<Div>

<JSP: Include page = "name. jsp">
<JSP: Param name = "name" value = "XY"/>
</Jsp: Include>

</Div>
This transfers the parameter named name and value XY to name. jsp.

 

InName. jspReceiving Parameters

 
 <%
 String n = request. getparameter ("name ");
 If (n! = NULL &&! "". Equals (N. Trim ()))
 Out. println (N );
 %>

 <Div id = "showname"> <% = URL> </div>

 

Let's look at a paging application.

 

Pager. jsp

<% @ Page Language = "Java" Import = "Java. util. *" pageencoding = "UTF-8" %>
<%
 String Path = request. getcontextpath ();
 String basepath = request. getscheme () + ": //" + request. getservername () + ":" + request. getserverport () + path + "/";
%>

<% @ Tagliburi = "/Struts-tags"
Prefix = "S" %>
<! Doctype HTML public "-// W3C // dtd html 4.01 transitional // en">
<HTML>
 <Head>
  <Base href = "<% = basepath %>">
  </Head>

 <Body>
  <%
   String url = request. getparameter ("url ");
  %>
  <S: If test = "# request. yrlyquery = NULL">
   <S: If test = "data. totalpage> 1">
    <S: If test = "data. totalpage = pageintnum">
     <A href = "<% = URL %>? Pagenum = 1 "> homepage </a> & nbsp;
     <A href = "<% = URL %>? Pagenum = <s: property value = "pageIntNum-1"/> "> previous page </a> & nbsp;
    </S: If>
    <S: elseif test = "pageintnum = 1">
     <A href = "<% = URL %>? Pagenum = <s: property value = "pageintnum + 1"/> "> next page </a>
     <A href = "<% = URL %>? Pagenum = <s: property value = "data. totalpage"/> "> last page </a> & nbsp;
    </S: elseif>
    <S: else>
     <A href = "<% = URL %>? Pagenum = 1 "> homepage </a> & nbsp;
     <A href = "<% = URL %>? Pagenum = <s: property value = "pageIntNum-1"/> "> previous page </a> & nbsp;
     <A href = "<% = URL %>? Pagenum = <s: property value = "pageintnum + 1"/> "> next page </a> & nbsp;
     <A href = "<% = URL %>? Pagenum = <s: property value = "data. totalpage"/> "> last page </a>
    </S: else>
   </S: If>
  </S: If>
  <S: else>
   <S: If test = "data. totalpage> 1">
    <S: If test = "data. totalpage = pageintnum">
     <A href = "<% = URL %>? Querytype = Q & pagenum = 1 "> homepage </a> & nbsp;
     <A href = "<% = URL %>? Querytype = Q & pagenum = <s: property value = "pageIntNum-1"/> "> previous page </a> & nbsp;
    </S: If>
    <S: elseif test = "pageintnum = 1">
     <A href = "<% = URL %>? Querytype = Q & pagenum = <s: property value = "pageintnum + 1"/> "> next page </a> & nbsp;
     <A href = "<% = URL %>? Querytype = Q & pagenum = <s: property value = "data. totalpage"/> "> last page </a>
    </S: elseif>
    <S: else>
     <A href = "<% = URL %>? Querytype = Q & pagenum = 1 "> homepage </a> & nbsp;
       <A href = "<% = URL %>? Querytype = Q & pagenum = <s: property value = "pageIntNum-1"/> "> previous page </a> & nbsp;
        <A href = "<% = URL %>? Querytype = Q & pagenum = <s: property value = "pageintnum + 1"/> "> next page </a>
       <A href = "<% = URL %>? Querytype = Q & pagenum = <s: property value = "data. totalpage"/> "> last page </a>
    </S: else>
   </S: If>
  </S: else>
  Current
  <S: property value = "pageintnum"/>
  Total pages
  <S: property value = "data. totalpage"/>
  Page
 </Body>
</Html>


Here, pagenum and data. totalpage are involved in SSH paging, so we will not go into details here.


Stduent. jsp

......

<Div>
  <JSP: Include page = "../pager. jsp">
  <JSP: ParamName = "url"/value = "Stu/stu_toquery"/>
  </Jsp: Include>
</Div>

......

 

In this way, the paging page can be embedded.

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