Java/JSP/Form TextField
Версия от 21:01, 31 мая 2010; (обсуждение)
Содержание
Form TextField Demo
<source lang="java">
//File: index.html <html>
<body>
Hello Web Application
<form action="hello.jsp" method="POST" >
| What is your name? |
<input type="text" name="name" /> |
<input type="submit" name="Submit" value="Submit name" /> <input type="reset" name="Reset" value="Reset form" />
</form> </body>
</html> //File: hello.jsp <html>
<head> <title>Hello Web Application</title> </head> <body>
Hello Web Application
<% String name = request.getParameter("name"); if (name.trim().length() == 0) { %> You did not tell me your name!
<% } else { %> Hello <%=name%>
<% } %>
Inserting Text into Text Fields
<source lang="java">
//File: index.html <HTML>
<HEAD> <TITLE>Inserting Text into Text Fields</TITLE> </HEAD> <BODY>
Inserting Text into Text Fields
<FORM NAME="form1" ACTION="formAction.jsp" METHOD="POST">
<INPUT TYPE="TEXT">
<INPUT TYPE="SUBMIT" VALUE="Click Me!">
</FORM>
</BODY>
</HTML>
//File: formAction.jsp <HTML>
<HEAD> <TITLE>Inserting Text into Text Fields</TITLE> </HEAD> <BODY>
Inserting Text into Text Fields
<FORM NAME="form1">
<INPUT TYPE="TEXT" VALUE="Hello from JSP!">
<INPUT TYPE="SUBMIT" VALUE="Click Me!">
</FORM>
</BODY>
</HTML>
</source>
Submitting Text Fields
<source lang="java">
//File: index.html <HTML>
<HEAD>
<TITLE>Submitting Text Fields</TITLE>
</HEAD>
<BODY>
Submitting Text Fields
<FORM ACTION="formAction.jsp" METHOD="POST">
Please enter your name:
<INPUT TYPE="TEXT" NAME="text1">
<INPUT TYPE="SUBMIT" value="Submit">
</FORM>
</BODY>
<HTML>
///////////////////////////////////////////////////////////////////////// //File: formAction.jsp <HTML>
<HEAD> <TITLE>Reading Data From Text Fields</TITLE> </HEAD> <BODY>
Reading Data From Text Fields
Your name is
<% out.println(request.getParameter("text1")); %>
</BODY>
</HTML>
</source>
Submitting Text Fields 2
<source lang="java">
//File: index.html <HTML>
<HEAD>
<TITLE>Submitting Text Fields</TITLE>
</HEAD>
<BODY>
Submitting Text Fields
<FORM ACTION="formAction.jsp" METHOD="POST">
Please enter your name:
<INPUT TYPE="TEXT" NAME="text1">
<INPUT TYPE="SUBMIT" value="Submit">
</FORM>
</BODY>
<HTML>
//File:formAction.jsp <HTML>
<HEAD>
<TITLE>Decoding an HTTP Request</TITLE>
</HEAD>
<BODY>
Request Information
JSP request method: <%= request.getMethod() %>
URL for the request: <%= request.getRequestURI() %>
Protocol of the request: <%= request.getProtocol() %>
Server name: <%= request.getServerName() %>
Path: <%= request.getServletPath() %>
Server port: <%= request.getServerPort() %>
Remote address: <%= request.getRemoteAddr() %>
Remote host: <%= request.getRemoteHost() %>
Locale: <%= request.getLocale() %>
User agent: <%= request.getHeader("User-Agent") %>
</BODY>
</HTML>
</source>
