Struts2 数据标签之 Include Tag

最新推荐文章于 2019-05-18 16:51:00 发布

转载最新推荐文章于 2019-05-18 16:51:00 发布 · 973 阅读

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#include #struts #date #jsp #servlet #output

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本文介绍如何使用Struts框架中的IncludeTag将一个JSP页面的内容嵌入到另一个JSP页面中。通过创建包含日期格式展示的myBirthday.jsp文件，并在includeTag.jsp中使用<s:include>标签进行引用。

Include Tag

The include tag is a generic tag that is used to include a servlet's output (result of servlet or a JSP page) to the current page.

Add the following code snippet into the struts.xml file.

struts.xml

<action name="includeTag" class="net.roseindia.includeTag">
<result name="success">/pages/genericTags/includeTag.jsp</result>
</action>

Create an action class as shown below:

includeTag.java

package net.roseindia;
import com.opensymphony.xwork2.ActionSupport;
import java.util.*;

public class includeTag extends ActionSupport {
  private Date myBirthday;
  public String execute() throws Exception{
  setMyBirthday(new Date("Jan 12, 1984 11:21:30 AM"));
  return SUCCESS;
  }
  
  public Date getMyBirthday(){
  return myBirthday;
  }
}

Create a simple jsp (myBirthday.jsp) that we want to include in our main jsp page ie..includeTag.jsp.

myBirthday.jsp

<%@ taglib prefix="s" uri="/struts-tags" %>



<html>

  <head>

  <title>Include Tag (Data Tag) Example!</title>

  </head>

  <body>

  <b><font color="#000080">My Birth Day (Date Format)</font></b>

  <table border="1" width="35%" bgcolor="ffffcc">

  <tr>

  <td width="50%"><b><font color="#000080">Date Format</font></b></td>

  <td width="50%"><b><font color="#000080">Date</font></b></td>

  </tr>

  <tr>

  <td width="50%">Day/Month/Year</td>

  <td width="50%"><s:date name="myBirthday" format="dd/MM/yyyy" /></td>

  </tr>

  <tr>

  <td width="50%">Month/Day/Year</td>

  <td width="50%"><s:date name="myBirthday" format="MM/dd/yyyy" /></td>

  </tr>

  <tr>

  <td width="50%">Month/Day/Year</td>

  <td width="50%"><s:date name="myBirthday" format="MM/dd/yy" /></td>

  </tr>

  <tr>

  <td width="50%">Month/Day/Year Hour<B>:</B>Minute</td>

  <td width="50%"><s:date name="myBirthday" format="MM/dd/yy hh:mm" /></td>

  </tr>

  <tr>

  <td width="50%">Month/Day/Year Hour<B>:</B>Minute<B>:</B>Second</td>

  <td width="50%"><s:date name="myBirthday" format="MM/dd/yy hh:mm:ss" /></td>

  </tr>

  <tr>

  <td width="50%">Nice Date (Current Date & Time)</td>

  <td width="50%"><s:date name="myBirthday" nice="false" /></td>

  </tr>

  </table>

  

  </body>

</html>

Now create a jsp page using <s:include> tag as shown in the includeTag.jsp page. The <s:include value="myBirthday.jsp" />

tag includes another jsp using the value parameter

includeTag.jsp

<%@ taglib prefix="s" uri="/struts-tags" %>

<html>
  <head>
  <title>Include Tag Example!</title>
  </head>
  <body>
  <h1><span style="background-color: #FFFFcc">Include Tag (Data Tags) 
   Example!</span></h1>
  <s:include value="myBirthday.jsp" />
  </body>
</html>