#眉標＝J2EE
#副標＝Struts&JSTL&XSLT整合應用(4) 
#大標＝運用JSTL重整View
#作者=文／歐宣修

     =============<box>================================
     .....
       <!--JSTL-->
       <taglib>
         <taglib-uri>http://java.sun.com/jstl/core</taglib-uri>
         <taglib-location>/WEB-INF/c.tld</taglib-location>
       </taglib>
       <taglib>
         <taglib-uri>http://java.sun.com/jstl/fmt</taglib-uri>
         <taglib-location>/WEB-INF/fmt.tld</taglib-location>
       </taglib>
       <taglib>
         <taglib-uri>http://java.sun.com/jstl/sql</taglib-uri>
         <taglib-location>/WEB-INF/sql.tld</taglib-location>
       </taglib>
       <taglib>
         <taglib-uri>http://java.sun.com/jstl/xml</taglib-uri>
         <taglib-location>/WEB-INF/x.tld</taglib-location>
       </taglib>
     </web-app>
     
     ==============<end>=================


     ===============<box>======================
employee.jsp

<!--
Program:employee.jsp
Decription:員工基本資料維護(Struts+Process+JSTL版)
Date:2003/04/02
Author:Senshaw

session variable
${pgid}_status:{"add","update"}
-->
<%@ page contentType="text/html;charset=UTF-8" import="java.io.*,java.util.*,idv.senshaw.DB.*,org.apache.struts.action.ActionErrors"%>
<!--Struts Tag--> 
<%@ taglib uri="/WEB-INF/struts-bean.tld" prefix="bean" %>
<%@ taglib uri="/WEB-INF/struts-html.tld" prefix="html" %>
<%@ taglib uri="/WEB-INF/struts-logic.tld" prefix="logic" %>

<!--JSTL Tag--> .........................................1.
<%@ taglib prefix="c" uri="http://java.sun.com/jstl/core" %>
<%@ taglib prefix="x" uri="http://java.sun.com/jstl/xml" %>
<%@ taglib prefix="fmt" uri="http://java.sun.com/jstl/fmt" %>

<script>
<!--

function doProcess(action)
{
  //alert(action);
  form1.command.value = action;
 
  if (action == "delete") {
    isConfirm = confirm("您確定要刪除此筆資料嗎？");
    
    if (isConfirm) {
      form1.submit();            
    }
  
  } else { 
    form1.submit();
  
  }
}
-->
</script>
<c:set var="pgid" value="employee"/>.........................................2.
<c:set var="status" value="${sessionScope.employee_status}"/>
<c:if test="${empty status}">.........................................3.
  <c:set var="status" value="add"/>
</c:if>

<c:set var="now_record" value="0"/>

<c:choose>.........................................4.
  <c:when test="${!empty requestScope.toRecord}">
    <c:set var="now_record" value="${requestScope.toRecord}"/>
  </c:when>
  <c:when test="${empty requestScope.toRecord}">
    <c:set var="now_record" value="${param.toRecord}"/>
  </c:when>
  
</c:choose>

<c:set var="max_record" value="0"/>

<c:set var="hd" value="${sessionScope.employee_query_data}"/>

<c:if test="${!empty hd && hd.rowcount > 0}">.........................................5.
  <c:set var="status" value="update"/>
  <c:set var="max_record" value="${hd.rowcount}"/>
  
  <c:if test="${now_record > 0}">
    <c:set var="id" value="${hd.arrayList[now_record - 1].id}"/>.........................................6.
    <c:set var="name" value="${hd.arrayList[now_record - 1].name}"/>
    <c:set var="age" value="${hd.arrayList[now_record - 1].age}"/>
    <c:set var="address" value="${hd.arrayList[now_record - 1].address}"/>
    
  </c:if>

</c:if>

<%--決定按鈕狀態--%>
<c:if test="${status == 'add'}">
  <c:set var="save_onClick" value="javascript:doProcess('add')"/>
</c:if>
<c:if test="${status == 'update'}">
  <c:set var="save_onClick" value="javascript:doProcess('update')"/>
</c:if>

<%--上筆、下筆連結處理--%>
<c:set var="pre_record_href" value="employee.jsp?toRecord="/>

<c:if test="${now_record > 1}">
  <c:set var="to_record" value="${now_record - 1}"/>
</c:if>
<c:if test="${now_record <= 1}">
  <c:set var="to_record" value="1"/>
</c:if>
<c:set var="pre_record_href" value="${pre_record_href}${to_record}"/>.........................................7.


<c:set var="next_record_href" value="employee.jsp?toRecord="/>

<c:if test="${now_record < max_record}">
  <c:set var="to_record" value="${now_record + 1}"/>
</c:if>
<c:if test="${now_record >= max_record}">
  <c:set var="to_record" value="${max_record}"/>
</c:if>
<c:set var="next_record_href" value="${next_record_href}${to_record}"/>

<c:if test="${max_record == 0}">
  <c:set var="now_record" value="0"/>
</c:if>


<html>
<body>


<form name="form1" action="employee.do" method="post" >
<input type="hidden" name="command" value="" />
<input type="hidden" name="pgid" value="<c:out value="${pgid}"/>" />.........................................8.
<input type="hidden" name="toRecord" value="<c:out value="${now_record}"/>" />
<p>員工基本資料維護(Struts+Process+JSTL版)</p>
<br/>
<table>
  <tr>
    <td width="70%">
    <!--資料輸入區塊-->
    <table>
      <!--訊息顯示-->
      <tr>
        <td>訊息列：</td>
        <td>
          <html:messages id="messages" message="true" >
            <bean:write name="messages"/>      
          </html:messages></td>
        </td>
      </tr>  
        
      <tr>
        <td>身分證號</td>
        <td>
          <%--新增時--%>
          <c:if test="${status == 'add'}">
            <input type="text" name="id" value="<c:out value="${id}"/>" maxlength="10" />
          </c:if>
          <%--修改時--%>
          <c:if test="${status == 'update'}">
            <c:out value="${id}"/><input type="hidden" name="id" value="<c:out value="${id}"/>" />          
          </c:if>
        </td>
      </tr>
      <tr>
        <td>姓名</td>
        <td><input type="text" name="name" value="<c:out value="${name}"/>" maxlength="10" /></td>
      </tr>
      <tr>
        <td>年齡</td>
        <td><input type="text" name="age" value="<c:out value="${age}"/>" maxlength="3" /></td>
      </tr>
      <tr>
        <td>住址</td>
        <td><input type="text" name="address" value="<c:out value="${address}"/>" /></td>
      </tr>

    </table>
    </td>
    <td width="30%">
    <!--按鈕區塊-->
      <table>
        <tr>
          <td><a href="employee.jsp?toRecord=1">首筆</a>&nbsp;<a href="<c:out value="${pre_record_href}"/>">上筆</a>&nbsp;<c:out value="${now_record}"/>/<c:out value="${max_record}"/>&nbsp;<a href="<c:out value="${next_record_href}"/>">下筆</a>&nbsp;<a href="employee.jsp?toRecord=<c:out value="${max_record}"/>">末筆</a></td>
        </tr>
        <tr>
          <td><input type="button" name="query" onClick="javascript:doProcess('query')" value="查詢" /></td>
        </tr>
        <tr>
          <td><input type="button" name="clear" onClick="javascript:doProcess('clear')" value="清除" /></td>
        </tr>
        <tr>
          <td><input type="button" name="save" onClick="<c:out value="${save_onClick}"/>" value="存檔" /></td>
        </tr>
        <tr>
          <td><input type="button" name="delete" onClick="javascript:doProcess('delete')" value="刪除" /></td>
        </tr>
      </table>
    </td>
  </tr>
</table>

</form>



<%--錯誤處理--%>
<html:messages id="error">
  <script>
    alert('<bean:write name="error"/>'); 
  </script>
</html:messages>

<body>
</html>

     =================<end>===================