< html:button /> html tag

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Struts button tag is a render of  an HTML <input> element of input type button .This is populated from the specified value or the content of this tag body. The <html:button/> tag must be nested inside the body of an <html:form/> tag.

 <html:form action="“login.do”"><html:button>This Tag have many attribute like value ,property ,onclick, onfocus ,onmousedown ,onmousemove etc. It has on mandatory attribute property.</html:button></html:form>
<html:form action="“login.do”"></html:form>
<html:form action="“login.do”">User Name:</html:form><html:form action="“login.do”">
<html:button property="“uesrname”">Password:<html:button property="“uesrname”"></html:button></html:button></html:form>

<html:form action="“login.do”"><html:button property="“uesrname”"><html:button property="“uesrname”"></html:button></html:button></html:form>

There are following attributes:-

1.accesskey :-This attributes is used to immediately move focus to this element.

2.alt :- This attributes is the alternate text for this element

3.onfocus :- This is used receives input focus after that event handler executed .

4.onmousedown :- This attributes is under the mouse pointer and a mouse button is depressed than event handler executed.

5.onmousemove :-This attributes is used under the mouse pointer when the pointer is moved than event handler executed.

The Following are many other attributes which we can use :

altKey 
bundle
dir 
disabled 
indexed
lang 
onblur
onchange
onclick
ondblclick
onkeydown
onkeypress
onkeyup
onmouseout
onmouseover
onmouseup
property
style
styleClassstyleId 
tabindex 
title
titleKey 
value

Directory Structure of ButtonTagExample in Struts 1.3 Using MyEclipse IDE



index.jsp

<%@taglib uri="http://struts.apache.org/tags-html" prefix="html"%>
<%@taglib uri="http://struts.apache.org/tags-bean" prefix="bean"%>
<html:html>
<head>
<title><bean:message key="label.title"/></title>
<script language="JavaScript">
            function clickme()
            {
                confirm("You click the button.");
            }
</script>
</head>
<body>
<h3><bean:message key="label.header"/></h3>
<html:form action="/buttonAction">
<bean:message key="label.name"/>:
<html:text property="name" name="buttonForm"/><br/>
<bean:message key="label.technology"/>:
<html:text property="technology" name="buttonForm"/><br/>
<br/>
<html:button property="name" onclick="clickme()"><bean:message key="label.button"/></html:button>
</html:form>
</body>
</html:html>

web.xml

<!DOCTYPE web-app PUBLIC
 "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
 "http://java.sun.com/dtd/web-app_2_3.dtd" >
 
<web-app>
  <display-name>Maven Struts Examples</display-name> 
  <servlet>
    <servlet-name>action</servlet-name>
    <servlet-class>
        org.apache.struts.action.ActionServlet
    </servlet-class>
    <init-param>
        <param-name>config</param-name>
        <param-value>
         /WEB-INF/struts-config.xml
        </param-value>
    </init-param>
    <load-on-startup>1</load-on-startup>
  </servlet> 
  <servlet-mapping>
       <servlet-name>action</servlet-name>
       <url-pattern>*.do</url-pattern>
  </servlet-mapping> 
</web-app>

struts-config.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE struts-config PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 1.3//EN" 
"http://struts.apache.org/dtds/struts-config_1_3.dtd">
<struts-config>
  <form-beans>
    <form-bean name="buttonForm" type="org.r4r.struts.ButtonForm"/>
  </form-beans>
  <global-exceptions />
  <global-forwards />
  <action-mappings >
    <action path="/button" type="org.apache.struts.actions.ForwardAction" parameter="/index.jsp"/>
		<action path="/buttonAction" type="org.r4r.struts.ButtonAction" name="buttonForm" input="/index.jsp">	
         <forward name="success" path="/success.jsp"/>
		</action>
  </action-mappings>
  <message-resources parameter="org.r4r.struts.ApplicationResources" />
</struts-config>

ButtonForm.java

package org.r4r.struts;

import org.apache.struts.action.ActionForm;

@SuppressWarnings("serial")
public class ButtonForm extends ActionForm {
	private String name;
	private String technology;
	public String getName() {
		return name;
	}
	public void setName(String name) {
		this.name = name;
	}
	public String getTechnology() {
		return technology;
	}
	public void setTechnology(String technology) {
		this.technology = technology;
	}
}

ButtonAction.java

package org.r4r.struts;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.struts.action.Action;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;

public class ButtonAction extends Action {
	public ActionForward execute(ActionMapping mapping,ActionForm form,
		HttpServletRequest request,HttpServletResponse response) throws Exception{
		@SuppressWarnings("unused")
		ButtonForm passwordForm=(ButtonForm)form;
		return mapping.findForward("success");
	}
}

ApplicationResources.properties

#label message
label.title=Struts html:button tag example
label.header=Struts html:button tag example
label.name = User Name 
label.technology = Technology Name
label.button = Button

success.jsp

<%@taglib uri="http://struts.apache.org/tags-bean" prefix="bean"%>
<%@taglib uri="http://struts.apache.org/tags-html" prefix="html"%>
<html:html xhtml="true">
<head>
<title><bean:message key="label.title"/></title>
<html:base/>
</head>
<body>
<h3><bean:message key="label.header"/></h3>
<h4><bean:message key="label.name"/>:-
<bean:write name="buttonForm" property="name" /></h4>
<h4><bean:message key="label.technology"/>:-
<bean:write name="buttonForm" property="technology" /></h4>
</body>
</html:html>

Output





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