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Java Tutorial/JSP/Form Post - История изменений
2026-04-22T08:21:00Z
История изменений этой страницы в вики
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http://www.jexp.ru/index.php?title=Java_Tutorial/JSP/Form_Post&diff=4996&oldid=prev
Admin: 1 версия
2010-06-01T05:07:16Z
<p>1 версия</p>
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<td colspan="1" style="background-color: white; color:black; text-align: center;">← Предыдущая</td>
<td colspan="1" style="background-color: white; color:black; text-align: center;">Версия 05:07, 1 июня 2010</td>
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Admin
http://www.jexp.ru/index.php?title=Java_Tutorial/JSP/Form_Post&diff=4995&oldid=prev
в 17:44, 31 мая 2010
2010-05-31T17:44:27Z
<p></p>
<p><b>Новая страница</b></p><div>== Form Calculator ==<br />
<br />
<br />
<br />
<br />
<p>index.jsp</p><br />
<br />
<br />
<!-- start source code --><br />
<br />
<source lang="java"><br />
<HTML><br />
<HEAD><br />
</HEAD><br />
<BODY><br />
<FORM ACTION="basic.jsp" METHOD="POST"><br />
<CENTER><br />
<H1>The JSP Calculator</H1><br />
<INPUT TYPE="TEXT" NAME="op1" VALUE=""><br />
<BR><br />
+<br />
<BR><br />
<INPUT TYPE="TEXT" NAME="op2" VALUE=""><br />
<BR><br />
<INPUT TYPE="SUBMIT" VALUE="&nbsp;&nbsp;=&nbsp;&nbsp;"><br />
</CENTER><br />
</FORM><br />
</BODY><br />
</HTML></source><br />
<br />
<br />
<!-- end source code --><br />
<br />
<br />
<br />
<br />
<br />
<br />
== Get Form Parameter By Index ==<br />
<br />
<br />
<br />
<br />
<br />
<br />
<br />
<!-- start source code --><br />
<br />
<source lang="java"><br />
<%@ taglib uri="http://java.sun.ru/jstl/core" prefix="c" %><br />
<html><br />
<head><br />
<title>Property Access</title><br />
</head><br />
<body><br />
<c:if test="${pageContext.request.method=="POST"}"><br />
<c:set var="idx" value="name" /><br />
param.name = <br />
<c:out value="${param.name}" /><br />
<br /><br />
param[name] = <br />
<c:out value="${param[idx]}" /><br />
<br /><br />
</c:if><br />
<br /><br />
<form method="post">Please enter your name? <br />
<input type="text" name="name" /><br />
<input type="Submit" /><br />
<br /><br />
</form><br />
</body><br />
</html></source><br />
<br />
<br />
<!-- end source code --><br />
<br />
<br />
<br />
<br />
<br />
<br />
== Get Form Parameter Enumeration ==<br />
<br />
<br />
<br />
<br />
<p>index.jsp</p><br />
<br />
<br />
<!-- start source code --><br />
<br />
<source lang="java"><br />
<HTML><br />
<HEAD><br />
<TITLE>Getting Parameter Names</TITLE><br />
</HEAD><br />
<br />
<BODY><br />
<H1>Getting Parameter Names<H1><br />
<FORM ACTION="basic.jsp" METHOD="POST"><br />
<INPUT TYPE="TEXT" NAME="text1"><br />
<BR><br />
<SELECT NAME="select1" SIZE="5" MULTIPLE><br />
<OPTION>Option 1</OPTION><br />
<OPTION selected>Option 2</OPTION><br />
<OPTION>Option 3</OPTION><br />
<OPTION>Option 4</OPTION><br />
<OPTION>Option 5</OPTION><br />
</SELECT><br />
<BR><br />
<INPUT TYPE="SUBMIT" VALUE="Submit"><br />
</FORM><br />
</BODY><br />
</HTML></source><br />
<br />
<br />
<!-- end source code --><br />
<br />
<br />
<br />
<br />
<br />
<br />
== Get submit button value ==<br />
<br />
<br />
<br />
<br />
<br />
<br />
<br />
<!-- start source code --><br />
<br />
<source lang="java"><br />
<HTML><br />
<HEAD><br />
<TITLE>Get submit button value</TITLE><br />
</HEAD><br />
<BODY><br />
<H1>Using Multiple Forms</H1><br />
<% <br />
if(request.getParameter("submit") != null) {<br />
%><br />
You clicked <br />
<%= request.getParameter("submit") %><br />
<%<br />
}<br />
%><br />
<FORM NAME="form1" METHOD="POST"><br />
<INPUT TYPE="SUBMIT" NAME="submit" VALUE="Button 1"><br />
</FORM><br />
<FORM NAME="form2" METHOD="POST"><br />
<INPUT TYPE="SUBMIT" NAME="submit" VALUE="Button 2"><br />
</FORM><br />
<FORM NAME="form3" METHOD="POST"><br />
<INPUT TYPE="SUBMIT" NAME="submit" VALUE="Button 3"><br />
</FORM><br />
</BODY><br />
</HTML></source><br />
<br />
<br />
<!-- end source code --><br />
<br />
<br />
<br />
<br />
<br />
== Process the Form action in the save page ==<br />
<br />
<br />
<br />
<br />
<br />
<br />
<br />
<!-- start source code --><br />
<br />
<source lang="java"><br />
<HTML><br />
<HEAD><br />
<TITLE>Using Buttons</TITLE><br />
</HEAD><br />
<BODY><br />
<% <br />
//if(request.getParameter("buttonName") != null) {<br />
if(request.getParameterNames() != null) {<br />
%><br />
You clicked <br />
<%= request.getParameter("buttonName") %><br />
<%<br />
}<br />
%><br />
<FORM NAME="form1" METHOD="POST"><br />
<INPUT TYPE="HIDDEN" NAME="buttonName"><br />
<INPUT TYPE="BUTTON" VALUE="Button 1" ONCLICK="button1()"><br />
<INPUT TYPE="BUTTON" VALUE="Button 2" ONCLICK="button2()"><br />
<INPUT TYPE="BUTTON" VALUE="Button 3" ONCLICK="button3()"><br />
</FORM><br />
<SCRIPT LANGUAGE="JavaScript"><br />
<!--<br />
function button1()<br />
{<br />
document.form1.buttonName.value = "button 1"<br />
form1.submit()<br />
} <br />
function button2()<br />
{<br />
document.form1.buttonName.value = "button 2"<br />
form1.submit()<br />
} <br />
function button3()<br />
{<br />
document.form1.buttonName.value = "button 3"<br />
form1.submit()<br />
} <br />
// --> <br />
</SCRIPT><br />
</BODY><br />
</HTML></source><br />
<br />
<br />
<!-- end source code --><br />
<br />
<br />
<br />
<br />
<br />
== Use multiple forms ==<br />
<br />
<br />
<br />
<br />
<br />
<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></source><br />
<br />
<br />
<!-- end source code --></div>