Simple struts2 Action model & form submission demo and upgrade to STRUTS2 2.5

Simple struts2 Action model & form submission, inheriting Actionsupport, the class that the Struts.xml defines action points to to accept submissions from.

The relevant or required documentation is as follows: web.xml need to add struts2 filter Definitions

<?xml version= "1.0" encoding= "UTF-8"?> <web-app xmlns:xsi= "Http://www.w3.org/2001/XMLSchema-instance" xmlns= "Http://java.sun.com/xml/ns/javaee" xsi:schemalocation= "Http://java.sun.com/xml/ns/javaee http:// Java.sun.com/xml/ns/javaee/web-app_3_0.xsd "id=" webapp_id "version=" 3.0 "> <display-name>sfmisStruts2< /display-name> <welcome-file-list> <welcome-file>index.html</welcome-file> <welcome-file >index.htm</welcome-file> <welcome-file>index.jsp</welcome-file> <welcome-file> Default.html</welcome-file> <welcome-file>default.htm</welcome-file> <welcome-file> default.jsp</welcome-file> </welcome-file-list> <filter> <filter-name>struts2</ Filter-name> <filter-class>org.apache.struts2.dispatcher.ng.filter.strutsprepareandexecutefilter</ filter-class> </filter> <filter-mapping> <filter-name>struts2</filter-name> &Lt;url-pattern>/*</url-pattern> </filter-mapping> </web-app> 

SRC root directory struts.xml file, defined action defined 3 Action,index, register_input and register, respectively, are welcome interface, input interface and display interface. Action Name= "Action name" class= "Process Class" Method= "class method"
This segment of the XML in <! DOCTYPE struts Public "-//apache Software foundation//dtd struts Configuration 2.0//en" "http://struts.apache.org/dtds/ Struts-2.0.dtd "> can not be omitted, otherwise not normal.

<?xml version= "1.0" encoding= "UTF-8"?> <! DOCTYPE struts Public "-//apache Software foundation//dtd struts Configuration 2.0//en" "Http://struts.apache. Org/dtds/struts-2.0.dtd "> <struts> <constant name=" struts.i18n.encoding "value=" Utf-8 "/> < Constant Name= "Struts.locale" value= "Zh_cn"/> <constant name= "Struts.devmode" value= "true"/> <constant na Me= "Struts.ui.theme" value= "simple"/> <package name= "basicstruts2" extends= "Struts-default" namespace= "> <!--If No class attribute is specified the framework would assume success and render the result index.jsp--&G
		T <!--If No Name value for the result node is specified the success value is the default--> <action name= "index "> <result>/index.jsp</result> </action> <action name=" Register_input "class=" Struts.hello World.action.Register "method=" input "> <result name=" Input ">/register.jsp</result>;/action> <!--for logger interceptor see:http://struts.apache.org/2.2.1/docs/logger-interceptor.html--> & lt;! --For Timer interceptor http://struts.apache.org/2.2.1/docs/timer-interceptor.html--> <action name= " Register "class=" Struts.helloworld.action.Register "method=" execute "> <interceptor-ref name=" Timer "/> < Interceptor-ref name= "Logger"/> <interceptor-ref name= "Defaultstack" > <param name= "exception.logEnable" D ">true</param> <param name=" Exception.loglevel ">ERROR</param> </interceptor-ref>
		; result name= "Success" >/thankyou.jsp</result> <result name= "Input" >/register.jsp</result> </action> </package> </struts>

The web.xml definition for struts2.5 differs from that of the previous version, with 2.5 web.xml defined as follows:

	<filter>
		<filter-name>struts2</filter-name>
		<filter-class> Org.apache.struts2.dispatcher.filter.strutsprepareandexecutefilter</filter-class>
	</filter>
	<filter-mapping>
		<filter-name>struts2</filter-name>
		<url-pattern>/*</ Url-pattern>
	</filter-mapping>

The head of struts2.5 's Struts.xml file is also different, notice the difference:

<?xml version= "1.0" encoding= "UTF-8"?> <!
DOCTYPE struts Public "-//apache Software foundation//dtd struts Configuration 2.5//en" "http://struts.apache.org/dtds/ Struts-2.5.dtd ">

Struts Action:Register.javaInherits the Actionsupport,setpersonbean method to receive form submissions, which is defined by the Struts.xml.

Package struts.helloworld.action;
Import Java.text.DateFormat;
Import Java.util.Date;
Import Struts.helloworld.model.Person;

Import Com.opensymphony.xwork2.ActionSupport;
  public class Register extends Actionsupport {private static final long serialversionuid = 1L;

  private person Personbean; Public String Execute () throws Exception {//Call Service class to store Personbean ' s state in Database return
  SUCCESS; public void Validate () {if (Personbean.getfirstname (). Length () = 0) {addfielderror ("personbean.fi
    Rstname "," the name is required. ");
    } if (Personbean.getemail (). Length () = 0) {addfielderror ("Personbean.email", "email is required."); } if (Personbean.getage () <) {Addfielderror ("Personbean.age", "age is required and must")
    Er ");
  Getpersonbean () {return personbean;
  public void Setpersonbean {personbean = person;
}
}
 

Strust Model:Person.java

A Form object, which can be said to be a data object, a field that corresponds to a data table, or a fields information corresponding to the from submission.

package Struts.helloworld.model;
 /** * Models a who registers.
  * * * @author Bruce Phillips * * * * * * * */public class Person {private String firstName;
  Private String LastName;
  Private String Email;

  private int age;
  Public String Getfirstname () {return firstName;
  } public void Setfirstname (String firstName) {this.firstname = FirstName;
  Public String Getlastname () {return lastName;
  } public void Setlastname (String lastName) {this.lastname = LastName;
  Public String Getemail () {return email;
  public void Setemail (String email) {this.email = email;
  public int getage () {return age;
  public void Setage (int age) {this.age = age;      Public String toString () {return "A-name:" + getfirstname () + "last Name:" + getlastname () + "Email:
  "+ getemail () +" Age: "+ getage (); }
}

Web root directory: index.jsp Welcome page, showing registration page for register entry

<%@ page language= "java" contenttype= "text/html; Charset=utf-8 "pageencoding=" UTF-8 "%>
<%@ taglib prefix=" s "uri="/struts-tags "%>
<! DOCTYPE HTML PUBLIC "-//w3c//dtd HTML 4.01 transitional//en" "Http://www.w3.org/TR/html4/loose.dtd" >
 

 
Web root/directory: register.jsp corresponds to the Personbean defined by private person within Register.java.


<%@ page language= "java" contenttype= "text/html; Charset=utf-8 "pageencoding=" UTF-8 "%>
<%@ taglib prefix=" s "uri="/struts-tags "%>
<! DOCTYPE HTML PUBLIC "-//w3c//dtd HTML 4.01 transitional//en" "Http://www.w3.org/TR/html4/loose.dtd" >
 

 
Web root/directory: thankyou.jsp display results.


<%@ page language= "java" contenttype= "text/html; Charset=utf-8 "pageencoding=" UTF-8 "%>
<%@ taglib prefix=" s "uri="/struts-tags "%>
<! DOCTYPE HTML PUBLIC "-//w3c//dtd HTML 4.01 transitional//en" "Http://www.w3.org/TR/html4/loose.dtd" >