Admin: 1 версия

2010-06-01T07:10:11Z

1 версия

в 18:01, 31 мая 2010

2010-05-31T18:01:47Z

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== Jsp Form And Bean ==



<source lang="java">
//File: index.html
<html>

<body bgcolor= white>
<font size=6 color=red>
<hr>
This web page is an example using JSP and BEANs.
<p>
Guess my favorite two colors
<p> If you fail to guess both of them - you get yellow on red.
<p> If you guess one of them right, either your foreground or
your background will change to the color that was guessed right.
<p> Guess them both right and your browser foreground/background
will change to my two favorite colors to display this page.
<hr>
<form method=GET action=colrs.jsp>
Color #1: <input type=text name= color1 size=16>
<br>
Color #2: <input type=text name= color2 size=16>
<p>
<input type=submit name=action value="Submit">
<input type=submit name=action value="Hint">
</form>
</font>
</body>
</html>
///////////////////////////////////////////////////////////
//File: colr.jsp
<html>

<jsp:useBean id="cb" scope="session" class="colors.ColorGameBean" />
<jsp:setProperty name="cb" property="*" />
<%
cb.processRequest(request);
%>
<body bgcolor=<%= cb.getColor1() %>>
<font size=6 color=<%= cb.getColor2() %>>
<p>
<% if (cb.getHint()==true) { %>

<p> Hint #1: Vampires prey at night!
<p> <p> Hint #2: Nancy without the n.
<% } %>
<% if (cb.getSuccess()==true) { %>
<p> CONGRATULATIONS!!
<% if (cb.getHintTaken()==true) { %>

<p> ( although I know you cheated and peeked into the hints)
<% } %>
<% } %>
<p> Total attempts so far: <%= cb.getAttempts() %>
<p>
<p>
<form method=POST action=colrs.jsp>
Color #1: <input type=text name= color1 size=16>
<br>
Color #2: <input type=text name= color2 size=16>
<p>
<input type=submit name=action value="Submit">
<input type=submit name=action value="Hint">
</form>
</font>
</body>
</html>
////////////////////////////////////////////////////////////
//File: ColorGameBean.java
/*
* Copyright 2004 The Apache Software Foundation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package colors;
import javax.servlet.http.*;
public class ColorGameBean {
private String background = "yellow";
private String foreground = "red";
private String color1 = foreground;
private String color2 = background;
private String hint = "no";
private int attempts = 0;
private int intval = 0;
private boolean tookHints = false;
public void processRequest(HttpServletRequest request) {
// background = "yellow";
// foreground = "red";
if (! color1.equals(foreground)) {
if (color1.equalsIgnoreCase("black") ||
color1.equalsIgnoreCase("cyan")) {
background = color1;
}
}
if (! color2.equals(background)) {
if (color2.equalsIgnoreCase("black") ||
color2.equalsIgnoreCase("cyan")) {
foreground = color2;
}
}
attempts++;
}
public void setColor2(String x) {
color2 = x;
}
public void setColor1(String x) {
color1 = x;
}
public void setAction(String x) {
if (!tookHints)
tookHints = x.equalsIgnoreCase("Hint");
hint = x;
}
public String getColor2() {
return background;
}
public String getColor1() {
return foreground;
}
public int getAttempts() {
return attempts;
}
public boolean getHint() {
return hint.equalsIgnoreCase("Hint");
}
public boolean getSuccess() {
if (background.equalsIgnoreCase("black") ||
background.equalsIgnoreCase("cyan")) {

if (foreground.equalsIgnoreCase("black") ||
foreground.equalsIgnoreCase("cyan"))
return true;
else
return false;
}
return false;
}
public boolean getHintTaken() {
return tookHints;
}
public void reset() {
foreground = "red";
background = "yellow";
}
public void setIntval(int value) {
intval = value;
}
public int getIntval() {
return intval;
}
}

</source>



== JSP Form Beans: Convert Money ==

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Java/JSP/Form Beans - История изменений

Admin: 1 версия

в 18:01, 31 мая 2010