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Java/JSP/Form - История изменений
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Admin: 1 версия
2010-06-01T07:10:02Z
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Admin
http://www.jexp.ru/index.php?title=Java/JSP/Form&diff=8610&oldid=prev
в 18:01, 31 мая 2010
2010-05-31T18:01:47Z
<p></p>
<p><b>Новая страница</b></p><div>== JSP form and Java beans ==<br />
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<!-- start source code --><br />
<br />
<source lang="java"><br />
//info.html<br />
<html><br />
<head><br />
<title>Request More Information</title><br />
</head><br />
<body><br />
<h1>More Information</h1><br />
Please use this basic form to select the course<br />
that you would like further information on.<br />
<form method="get" action="moreInformationRequestWithBean.jsp"><br />
<br><input type="radio" name="courses" value="Java Programming"> Java Programming<br />
<br><input type="radio" name="courses" value="Java Web Development"> Java Web Development<br />
<br><input type="radio" name="courses" value="J2EE Development"> J2EE Development<br />
<br><input type="radio" name="courses" value="XML Introduction"> XML Introduction<br />
<br><input type="radio" name="courses" value="XML Schema"> XML Schema<br />
<br><input type="radio" name="courses" value="Web Services"> Web Services<br />
<p>First name: <input type="text" name="firstName"><br />
<br>Last name: <input type="text" name="lastName"><br />
<br>Email: <input type="text" name="email"><br />
<p><input type="submit" name="Submit"><br />
</form><br />
</body><br />
</html><br />
<!-- moreInformationRequestWithBean.jsp --><br />
<%@ page import="com.jexp.*"%><br />
<jsp:useBean id="infoRequest" scope="session"<br />
type="MoreInfoRequest"/><br />
<jsp:setProperty name="infoRequest" property="*"/><br />
<html><br />
<head><br />
<title>Thankyou for your request</title><br />
</head><br />
<body><br />
<h1>Thankyou for your request</h1><br />
Thankyou for your request for more information.<br />
It will be sent to you shortly.<br />
<p>Click to view your request.<br />
</body><br />
</html><br />
// listing 8.4<br />
package com.jexp;<br />
public class MoreInfoRequest<br />
{<br />
public String getFirstName() {<br />
return firstName;<br />
}<br />
public void setFirstName(String firstName) {<br />
this.firstName = firstName;<br />
}<br />
public String getLastName() {<br />
return lastName;<br />
}<br />
public void setLastName(String lastName) {<br />
this.lastName = lastName;<br />
}<br />
public String getCourses() {<br />
return courses;<br />
}<br />
public void setCourses(String courses) {<br />
this.courses = courses;<br />
}<br />
public String getEmail() {<br />
return email;<br />
}<br />
public void setEmail(String email) {<br />
this.email = email;<br />
}<br />
private String firstName;<br />
private String lastName;<br />
private String email;<br />
private String courses;<br />
}<br />
<br />
<br />
<br />
</source><br />
<br />
<br />
<!-- end source code --><br />
<br />
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== JSP form parameters with default values ==<br />
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<!-- start source code --><br />
<br />
<source lang="java"><br />
<html><br />
<head><title>Create Person</title></head><br />
<body><br />
<h1>Enter your details</h1><br />
<form action="displayDetails.jsp" method="post"><br />
<table><br />
<tr><td>First name:</td> <td><input type="text" name="firstName" /></td></tr><br />
<tr><td>Last name:</td> <td><input type="text" name="lastName" /></td></tr><br />
<tr><td>Age:</td> <td><input type="text" name="age" /></td></tr><br />
</table><br />
<input type="submit" value="Submit details" /><br />
</form><br />
</body><br />
</html><br />
//displayDetails.jsp<br />
<%@ taglib prefix="c" uri="http://java.sun.ru/jstl/core" %><br />
<html><br />
<head><title>Display details</title></head><br />
<body><br />
<h1>The details that you entered!</h1><br />
<table><br />
<tr><td>First name</td><br />
<td><c:out value="${param.firstName}" /></td><br />
</tr><br />
<tr><td>Last name</td><br />
<td><c:out value="${param.lastName}" /></td><br />
</tr><br />
<tr><td>Age</td><br />
<td><c:out value="${param.age}" /></td><br />
</tr><br />
<%-- The following two values are not passed from the HTML form<br />
and are present to show the syntax for specifying default<br />
values --%><br />
<tr><td>Partner"s name</td><br />
<td><c:out value="${param.partnerName}" default="Unknown name" /></td><br />
</tr><br />
<tr><td>Partner"s age</td><br />
<td><c:out value="${param.partnerAge}"><br />
Unknown age<br />
</c:out><br />
</td><br />
</tr><br />
</table><br />
</body><br />
</html><br />
<br />
<br />
</source><br />
<br />
<br />
<!-- end source code --><br />
<br />
<br />
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== JSP: passing parameter and form ==<br />
<br />
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<br />
<!-- start source code --><br />
<br />
<source lang="java"><br />
/*<br />
Beginning JavaServer Pages<br />
Vivek Chopra, Jon Eaves, Rupert Jones, Sing Li, John T. Bell<br />
ISBN: 0-7645-7485-X<br />
*/<br />
<br />
<html><br />
<head><title>Select Your Portal</title></head><br />
<body><br />
<h1>Select your preferred portal:</h1><br />
<form action="showportal.jsp" method="get"><br />
<select name="portchoice"><br />
<option>news</option><br />
<option>weather</option><br />
<option>entertainment</option><br />
</select><br />
<input type="submit" value="Select"/><br />
</form><br />
</body><br />
</html><br />
//showportal.jsp<br />
<%@ taglib prefix="c" uri="http://java.sun.ru/jsp/jstl/core" %><br />
<html><br />
<c:choose><br />
<c:when test="${param.portchoice == "news"}"><br />
<head><title>News Portal</title></head><br />
<body><br />
<h1>Welcome to the News Portal!</h1> <br />
</body><br />
</c:when><br />
<c:when test="${param.portchoice == "weather"}"><br />
<head><title>Weather Portal</title></head><br />
<body><br />
<h1>You Get the Latest Weather!</h1> <br />
</body><br />
</c:when><br />
<c:when test="${param.portchoice == "entertainment"}"><br />
<head><title>Entertainment Portal</title></head><br />
<body><br />
<h1>Entertainment News Just for You!</h1> <br />
</body><br />
</c:when><br />
<c:otherwise><br />
<head><title>System Portal</title></head><br />
<body><br />
<h1>Application logic problem detected!</h1> <br />
</body><br />
</c:otherwise><br />
</c:choose><br />
</html><br />
<br />
</source><br />
<br />
<br />
<!-- end source code --><br />
<br />
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<br />
== JSP Standard Actions: retrieve information and form ==<br />
<br />
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<br />
<br />
<!-- start source code --><br />
<br />
<source lang="java"><br />
/*<br />
Beginning JavaServer Pages<br />
Vivek Chopra, Jon Eaves, Rupert Jones, Sing Li, John T. Bell<br />
ISBN: 0-7645-7485-X<br />
*/<br />
<br />
<br />
<br />
</source><br />
<br />
<br />
<!-- end source code --><br />
<br />
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<br />
== Name Guess Jsp ==<br />
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== Retrieve Form Data Save To Bean And Output Jsp ==<br />
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== Save Form Value To File Jsp ==<br />
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== Using Multiple Forms ==<br />
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<br />
<br />
<!-- start source code --><br />
<br />
<source lang="java"><br />
<HTML><br />
<HEAD><br />
<TITLE>Using Multiple Forms</TITLE><br />
</HEAD><br />
<BODY><br />
<H1>Using Multiple Forms</H1><br />
<% <br />
if(request.getParameter("buttonName") != null) {<br />
%><br />
You clicked <br />
<%= request.getParameter("buttonName") %><br />
<%<br />
}<br />
%><br />
<FORM NAME="form1" METHOD="POST"><br />
<INPUT TYPE="HIDDEN" NAME="buttonName" VALUE="button 1"><br />
<INPUT TYPE="SUBMIT" VALUE="Button 1"><br />
</FORM><br />
<FORM NAME="form2" METHOD="POST"><br />
<INPUT TYPE="HIDDEN" NAME="buttonName" VALUE="button 2"><br />
<INPUT TYPE="SUBMIT" VALUE="Button 2"><br />
</FORM><br />
<FORM NAME="form3" METHOD="POST"><br />
<INPUT TYPE="HIDDEN" NAME="buttonName" VALUE="button 3"><br />
<INPUT TYPE="SUBMIT" VALUE="Button 3"><br />
</FORM><br />
</BODY><br />
</HTML><br />
<br />
</source><br />
<br />
<br />
<!-- end source code --></div>