searchstudent.jsp

来自「100多M的J2EE培训内容」· JSP 代码 · 共 117 行

JSP

117 行

<%@ page contentType="text/html; charset=GBK" %>
<%@ page language="java" %>
<%@ page import="java.util.ArrayList" %>
<%@ page import="java.util.Collection" %>
<%@ page import="javax.ejb.ObjectNotFoundException" %>
<%@ page import="javax.naming.InitialContext" %>
<%@ page import="cmpsample.*" %>

<html>
<head><title>Chapter 11 CMP 2.0 Sample Example </title></head>
<body bgcolor="white">
<center>
<h2>Chapter 11 CMP 2.0 StudentEJB - Search for a student entity and list courses and addresses</h2>

Search for a Student:
<p>
    <form method="get" action="/WebApp/searchStudent.jsp">
    Search by
    <select name="searchCriteria">
      <option value="studentID" selected>Student ID
      <option value="lastName">Last Name
      <option value="firstName">First Name
    </select>
    <input type="text" name="searchText" size="25">
    <p>
    <input type="submit" value="Search">
    </form>

<%
String text = request.getParameter("searchText");
String criteria = request.getParameter("searchCriteria");

if (text != null && !"".equals(text)) {
    try {
        InitialContext ic = new InitialContext();
        Object obj = ic.lookup("Student");
        StudentHome home = (StudentHome) obj;

        Collection Students = new ArrayList();
        if ("studentID".equals(criteria)) {
          try {
            Student student = home.findByPrimaryKey(text);
            Students.add(student);
          } catch (ObjectNotFoundException ex) {}
        }
        else if ("lastName".equals(criteria)) {
          Students = home.findByLastName(text);
        }
        else if ("firstName".equals(criteria)) {
          Students = home.findByFirstName(text);
        }
        else
	  {  }


%>
<hr>
<p>
Results of the search: <p>
<%
for (int i = 0; i < Students.size(); i++) {
  Student stud = (Student)((ArrayList)Students).get(i);
  String sid = (String) stud.getPrimaryKey();
  ArrayList rosterList = stud.getRosterList();
%>
<b> <%=stud.getFirstname()%>  <%=stud.getLastname()%> </b> is registered in
<%=stud.getRosterList().size()%> classes listed below: <p>

<table border=2>
<tr><th>Roster ID</th> <th>Schedule ID</th></tr>
<%
	for (int j=0; j < rosterList.size(); j++)
	{
	  Roster rost = (Roster) rosterList.get(j);
%>
<tr>
<td> <%=rost.fetchRosterID()%> </td>
<td> <%=rost.fetchScheduleID()%> </td>
</tr>
<%
	}
%>
</table>
<p>
 and has
<%=stud.getAddressList().size()%> addresses<p>
<table border=3>
<tr><th>Strret</th><th>city</th><th>State</th></tr>
<%   ArrayList list = stud.getAddressList();
	for (int k=0; k< list.size(); k++)
	{
	  Address addr = (Address)list.get(k);
%>
<tr>
<td><%=addr.getStreet()%></td>
<td> <%=addr.getCity()%></td>
<td> <%=addr.getState()%></td>
</tr>
<%
	}
%>
</table>
<%
}
    } catch(Exception e) {
        e.printStackTrace();
        out.println(e.toString());
    }
}
%>

<hr>
[<a href="/WebApp/index.html">HOME</a>]
</center>
</body>
</html>

searchstudent.jsp - 源码说明

本页面展示了「100多M的J2EE培训内容」中的 searchstudent.jsp 源码文件，采用 JSP 编程语言编写，共 117 行代码。您可以在线阅读完整代码内容，也可以返回资源详情页下载完整源码包进行本地学习和开发。

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