Java/JSP/Form Select
Содержание
- 1 Getting Parameter Names Jsp
- 2 Getting Parameter Names<H1> <FORM ACTION="formAction.jsp" METHOD="POST"> <INPUT TYPE="TEXT" NAME="text1"> <SELECT NAME="select1" SIZE="5" MULTIPLE> <OPTION>Option 1</OPTION> <OPTION selected>Option 2</OPTION> <OPTION>Option 3</OPTION> <OPTION>Option 4</OPTION> <OPTION>Option 5</OPTION> </SELECT> <INPUT TYPE="SUBMIT" VALUE="Submit"> </FORM> </BODY> </HTML> /////////////////////////////////////////////////////////// //File: formAction.jsp <HTML> <HEAD> <TITLE>Reading Parameter Names</TITLE> </HEAD> <BODY> <H1>Reading Parameter Names
- 3 Submitting Multiple Selection Select Controls<H1> <FORM ACTION="formAction.jsp" METHOD="POST"> <SELECT NAME="select1" SIZE="5" MULTIPLE> <OPTION>Option 1</OPTION> <OPTION SELECTED>Option 2</OPTION> <OPTION>Option 3</OPTION> <OPTION>Option 4</OPTION> <OPTION>Option 5</OPTION> </SELECT> <INPUT TYPE="SUBMIT" VALUE="Submit"> </FORM> </BODY> </HTML> //File: formAction.jsp <HTML> <HEAD> <TITLE>Reading Multiple Selection Select Controls</TITLE> </HEAD> <BODY> <H1>Reading Multiple Selection Select Controls
- 4 Submitting Select Controls
- 5 Reading Select Controls
Getting Parameter Names Jsp
<source lang="java">
//File: index.html <HTML>
<HEAD>
<TITLE>Getting Parameter Names</TITLE>
</HEAD>
<BODY>
Getting Parameter Names<H1>
<FORM ACTION="formAction.jsp" METHOD="POST">
<INPUT TYPE="TEXT" NAME="text1">
<SELECT NAME="select1" SIZE="5" MULTIPLE>
<OPTION>Option 1</OPTION>
<OPTION selected>Option 2</OPTION>
<OPTION>Option 3</OPTION>
<OPTION>Option 4</OPTION>
<OPTION>Option 5</OPTION>
</SELECT>
<INPUT TYPE="SUBMIT" VALUE="Submit">
</FORM>
</BODY>
</HTML>
///////////////////////////////////////////////////////////
//File: formAction.jsp
<HTML>
<HEAD>
<TITLE>Reading Parameter Names</TITLE>
</HEAD>
<BODY>
<H1>Reading Parameter Names
Parameter Names:
<% java.util.Enumeration names = request.getParameterNames();
while(names.hasMoreElements()){
out.println(names.nextElement() + "
");
}
%>
</BODY>
</HTML>
</source>
Submitting Multiple Selection Select Controls
<source lang="java">
//File: index.html <HTML>
<HEAD>
<TITLE>Submitting Multiple Selection Select Controls</TITLE>
</HEAD>
<BODY>
Submitting Multiple Selection Select Controls<H1>
<FORM ACTION="formAction.jsp" METHOD="POST">
<SELECT NAME="select1" SIZE="5" MULTIPLE>
<OPTION>Option 1</OPTION>
<OPTION SELECTED>Option 2</OPTION>
<OPTION>Option 3</OPTION>
<OPTION>Option 4</OPTION>
<OPTION>Option 5</OPTION>
</SELECT>
<INPUT TYPE="SUBMIT" VALUE="Submit">
</FORM>
</BODY>
</HTML>
//File: formAction.jsp
<HTML>
<HEAD>
<TITLE>Reading Multiple Selection Select Controls</TITLE>
</HEAD>
<BODY>
<H1>Reading Multiple Selection Select Controls
You selected:
<% String[] items = request.getParameterValues("select1");
for(int loopIndex = 0; loopIndex < items.length; loopIndex++){
out.println(items[loopIndex] + "
");
}
%>
</BODY>
</HTML>
</source>
Submitting Select Controls
<source lang="java">
//File: index.html <HTML>
<HEAD>
<TITLE>Submitting Select Controls</TITLE>
</HEAD>
<BODY>
Submitting Select Controls
<FORM ACTION="formAction.jsp" METHOD="POST">
<SELECT NAME="select1">
<OPTION>Option 1</OPTION>
<OPTION SELECTED>Option 2</OPTION>
<OPTION>Option 3</OPTION>
</SELECT>
<INPUT TYPE="submit" VALUE="Submit">
</FORM>
</BODY>
</HTML> //File: formAction.jsp <HTML>
<HEAD>
<TITLE>Reading Select Controls</TITLE>
</HEAD>
<BODY>
Reading Select Controls
You selected
<% out.println(request.getParameter("select1")); %>
</BODY>
</HTML>
</source>
