目錄結構：
SimpleExamples
|_   index.jsp
|_    pages
|       |_    Welcome.jsp
|       |_    logon.jsp
|_    pic
|        |_  
|_    WEB-INF
         |_    classes
         |            |_    ApplicationResources.properties
         |            |_    strutsinactionexamples
         |                        |_    LogonAction.class
         |                        |_    LogonForm.class
         |                        |_    LogoffAction.class
         |_    lib
         |            |_    jdbc2_0-stdext.jar
         |            |_    struts.jar
         |_    struts-bean.tld
         |_    struts-html.tld
         |_    struts-logic.tld
         |_    struts-config.xml
         |_    web.xmlsss     /*---------------------------ApplicationResources.properties-----------------------------------*/
# -- standard errors --
errors.header=

Validation Error

You must correct the following error(s) before proceeding:

errors.footer=

---

error.username.required=

Username is required

error.password.required=

Password is required

error.logon.connect=

Connectiong is failure

error.logon.invalid=

Username/password combination is invalid

# -- welcome --
welcome.title=Welcome !      /*-------------------Constants.jsp ---------------------*/ package strutsinactionexamples; public final class Constants {     /**
     * 當前用戶的用戶名在session中的id
     */
    public static final String USER_KEY = "user";
    /**
     * 除錯信息的值
     */
    public static final int DEBUG = 1;
    /**
     * 正常訊息的值
     */
    public static final int NORMAL = 0;
    /**
     * ActionForward中的正常結果
     */
    public static final String SUCCESS = "success";
    /**
     * 代表ActionForward 中地正常結果的符號
     */
    public static final String LOGON = "logon";     /**
     * 這個符號代表ActionForward中的登陸行動的符號
     */
    public static String WELCOME = "welcome";
}
    /*-------------------------LogoffAction.java--------------------------*/
 package strutsinactionexamples; import org.apache.struts.action.ActionMapping;
import org.apache.struts.action.ActionForm;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.Action; public class LogoffAction extends Action {
    public ActionForward perform(ActionMapping actionMapping,
                                 ActionForm actionForm,
                                 HttpServletRequest servletRequest,
                                 HttpServletResponse servletResponse) {
        javax.servlet.http.HttpSession session=servletRequest.getSession();
        LogonForm user=(LogonForm)session.getAttribute(Constants.USER_KEY);
        if(user!=null){
            if(servlet.getDebug()>=Constants.NORMAL){
                StringBuffer message=new StringBuffer("LogoffAcion:user '");
                message.append(user.getUsername());
                message.append("' logged off in session ");
                message.append(session.getId());
                servlet.log(message.toString());
            }        
        }       
        session.removeAttribute(Constants.USER_KEY);
        //session.invalidate();//同時也會摧毀本地話物件
        return (actionMapping.findForward(Constants.SUCCESS));
    }
}


    /*--------------------LogonAction .java----------------*/
package strutsinactionexamples; import org.apache.struts.action.ActionMapping;
import org.apache.struts.action.ActionForm;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.Action;
import org.apache.struts.action.ActionErrors;
import org.apache.struts.action.ActionError;
import javax.servlet.http.HttpSession; public class LogonAction extends Action {
    public LogonAction() {
        try {
            jbInit();
        } catch (Exception ex) {
            ex.printStackTrace();
        }
    }     public ActionForward perform(ActionMapping actionMapping,
                                 ActionForm actionForm,
                                 HttpServletRequest servletRequest,
                                 HttpServletResponse servletResponse) {
        LogonForm logonForm = (LogonForm) actionForm;
        String username = logonForm.getUsername();
        String password = logonForm.getPassword();
        boolean validated = false;
        try {
            validated = this.isUserLogon(username, password);
        } catch (Exception e) {
            ActionErrors errors = new ActionErrors();
            errors.add(ActionErrors.GLOBAL_ERROR,
                       new ActionError("error.logon.connect"));
            saveErrors(servletRequest, errors);
            return (new ActionForward(actionMapping.getInput())); //struts-config裡面一定要些input='xx'
        }
        if (!validated) {
            ActionErrors errors = new ActionErrors();
            errors.add(ActionErrors.GLOBAL_ERROR,
                       new ActionError("error.logon.invalid"));
            saveErrors(servletRequest, errors);
            return (new ActionForward(actionMapping.getInput())); //回到輸入頁
        } else {
            HttpSession session = servletRequest.getSession();
            session.setAttribute(Constants.USER_KEY, logonForm);
            //form存入session中表示簽入成功
            if (servlet.getDebug() >= Constants.NORMAL) { //出錯層級大於一定時記錄,ActionServlet.getDebug 取得＜init-param>debug2中得數值
                StringBuffer message = new StringBuffer("LogonAciont:User '");
                message.append(username);
                message.append("' logged on is session ");
                message.append(session.getId());
                servlet.log(message.toString());
            }
            return (actionMapping.findForward(Constants.SUCCESS));
        }
    }     private boolean isUserLogon(String username, String password) {
        return (username.equals("a") && password.equals("a"));
    }     private void jbInit() throws Exception {
    }
}



    /*---------------------LogonForm.java---------------------*/
package strutsinactionexamples; import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionError;
import org.apache.struts.action.ActionErrors;
import org.apache.struts.action.ActionMapping;
import javax.servlet.http.HttpServletRequest; public class LogonForm extends ActionForm {
    private String password;
    private String username;
    public String getPassword() {
        return password;
    }     public void setPassword(String password) {
        this.password = password;
    }     public void setUsername(String username) {
        this.username = username;
    }     public String getUsername() {
        return username;
    }     public ActionErrors validate(ActionMapping actionMapping,
                                 HttpServletRequest httpServletRequest) {
        ActionErrors errors=new ActionErrors();
        if((this.username==null)||(this.username.length()<1))
            errors.add("username",new ActionError("error.username.required"));
        if((this.password==null)||(this.password.length()<1))
            errors.add("password",new ActionError("error.password.required"));
        return errors;
    }     public void reset(ActionMapping actionMapping,
                      HttpServletRequest servletRequest) {
        password = null;
        username = null;
    }
}


    /*------------------web.xml------------------------------*/

http://java.sun.com/dtd/web-app_2_3.dtd">

  WebModuleStruts1_0
 
    action
    org.apache.struts.action.ActionServlet
   
      config
      /WEB-INF/struts-config.xml
   
   
      debug
      2
   
   
      application
      ApplicationResources
   
    2
 
 
    action
    *.do
 
 
    index.jsp
    index.html
    index.htm
 
 
    /WEB-INF/struts-bean.tld
    /WEB-INF/struts-bean.tld
 
 
    /WEB-INF/struts-html.tld
    /WEB-INF/struts-html.tld
 
 
    /WEB-INF/struts-logic.tld
    /WEB-INF/struts-logic.tld
 
 
    /WEB-INF/struts-template.tld
    /WEB-INF/struts-template.tld
 




    /*------------------------struts-config.xml------------------------------*/

http://jakarta.apache.org/struts/dtds/struts-config_1_0.dtd">

 
   
   
 
 
 
 
   
   
   
 
 
      
    
   
   
   
   
       
     
     
   
   
 






    /*----------------------index.jsp-----------------------*/
<%@ taglib uri="/WEB-INF/struts-logic.tld" prefix="logic" %> <%--/Welcome.do不可以,

<%-- Redirect default requests to Welcome global ActionForward.
By using a redirect, the user-agent will change address to match the path of our Welcome ActionForward. --%>



    /*-------------------------Welcome.jsp----------------------------------*/
<%@ page contentType="text/html; charset=Big5" %>
<%@ taglib uri="/WEB-INF/struts-html.tld" prefix="html" %>
<%@ taglib uri="/WEB-INF/struts-bean.tld" prefix="bean" %>
<%@ taglib uri="/WEB-INF/struts-logic.tld" prefix="logic" %>







 

Welcome !

 

Welcome !

 
• Sign in

 
   
• Sign out
   
 

/*-----------------------logon.jsp--------------------------*/
<%@ page contentType="text/html; charset=Big5" %>
<%@ taglib uri="/WEB-INF/struts-html.tld" prefix="html" %>






<%-- 一樣效果:

 
  --%>


 Username:

 Password: