struts简单登录页面

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 struts-config.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE struts-config PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 1.2//EN" "http://struts.apache.org/dtds/struts-config_1_2.dtd">

<struts-config>
  <data-sources />
  <form-beans >
  <form-bean name="LoginForm"
   type="com.neusoft.struts.form.LoginForm" />
   </form-beans>
  <global-exceptions />
  <global-forwards >         //全局跳转,找到相应的Action
  <forward name="success"  path="/success.do" /> //相对路径相对于jsp文件夹的路径
  <forward name="error" path="/error.do"/>
  </global-forwards>
  <action-mappings >
  <action
      path="/login"
      attribute="LoginForm"
      name="LoginForm"
      scope="request"
      type="com.neusoft.struts.action.LoginAction" >
      <forward name="success" path="/jsp/success.jsp"/> //FORWARD子元用于经过action处理后的跳转
      <forward name="error" path="/jsp/error.jsp"/>
 </action>
 <action path="/jsp/success" forward="/jsp/success.jsp"/>//FORWARD属性用于直接跳转,不经Action处理,相对路径为struts文件夹
    <action path="/jsp/error" forward="/jsp/error.jsp" />
  </action-mappings>
  <message-resources parameter="com.neusoft.struts.ApplicationResources" />
</struts-config>

jsp页面:

login.jsp:

<%@ page language="java" pageEncoding="ISO-8859-1"%>

<%@ taglib uri="http://struts.apache.org/tags-bean" prefix="bean" %>
<%@ taglib uri="http://struts.apache.org/tags-html" prefix="html" %>
<%@ taglib uri="http://struts.apache.org/tags-logic" prefix="logic" %>
<%@ taglib uri="http://struts.apache.org/tags-tiles" prefix="tiles" %>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html:html lang="true">
  <head>
    <html:base />
   
    <title>login.jsp</title>

 <meta http-equiv="pragma" content="no-cache">
 <meta http-equiv="cache-control" content="no-cache">
 <meta http-equiv="expires" content="0">   
 <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
 <meta http-equiv="description" content="This is my page">
 <!--
 <link rel="stylesheet" type="text/css" href="styles.css">
 -->

  </head>
 
  <body>
    <html:form action="login.do" method="post" focus="login">
      <table border="0">
        <tr>
          <td>Login:</td>
          <td><html:text property="name" /></td>
        </tr>
        <tr>
          <td>Password:</td>
          <td><html:password property="password" /></td>
        </tr>
        <tr>
          <td colspan="2" align="center"><html:submit /></td>
        </tr>
      </table>
    </html:form>
    <a href="success.do">success</a>
    <a href="error.do">error</a>
  </body>
</html:html>
error.jsp:

<%@ page language="java" import="java.util.*" pageEncoding="ISO-8859-1"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
    <base href="<%=basePath%>">
   
    <title>My JSP &apos;error.jsp&apos; starting page</title>
   
 <meta http-equiv="pragma" content="no-cache">
 <meta http-equiv="cache-control" content="no-cache">
 <meta http-equiv="expires" content="0">   
 <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
 <meta http-equiv="description" content="This is my page">
 <!--
 <link rel="stylesheet" type="text/css" href="styles.css">
 -->

  </head>
 
  <body>
    error!!. <br>
  </body>
</html>


success.jsp

<%@ page language="java" import="java.util.*" pageEncoding="ISO-8859-1"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
    <base href="<%=basePath%>">
   
    <title>My JSP &apos;success.jsp&apos; starting page</title>
   
 <meta http-equiv="pragma" content="no-cache">
 <meta http-equiv="cache-control" content="no-cache">
 <meta http-equiv="expires" content="0">   
 <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
 <meta http-equiv="description" content="This is my page">
 <!--
 <link rel="stylesheet" type="text/css" href="styles.css">
 -->

  </head>
 
  <body>
    success!!!. <br>
  </body>
</html>

 


LoginForm.java

package com.neusoft.struts.form;

import org.apache.struts.action.ActionForm;

public class LoginForm extends ActionForm{       //必须继承ActionForm类 
private String name=null;
private String password=null;
public String getName() {
 return name;
}
public void setName(String name) {
 this.name = name;
}
public String getPassword() {
 return password;
}
public void setPassword(String password) {
 this.password = password;
}

}

LoginAction.java

/*
 * Generated by MyEclipse Struts
 * Template path: templates/java/JavaClass.vtl
 */
package com.neusoft.struts.action;

import java.io.IOException;

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;

import com.neusoft.struts.form.LoginForm;

/**
 * MyEclipse Struts
 * Creation date: 07-18-2008
 *
 * XDoclet definition:
 * @struts.action validate="true"
 */
public class LoginAction extends Action {    //必须继承Action类
 /*
  * Generated Methods
  */

 /**
  * Method execute
  * @param mapping
  * @param form
  * @param request
  * @param response
  * @return ActionForward
  */
 public ActionForward execute(ActionMapping mapping, ActionForm form,
   HttpServletRequest request, HttpServletResponse response){
  // TODO Auto-generated method stub
  String back=null;
  LoginForm loginform=(LoginForm)form;  //ActionForm将LoginForm中的值传过来,必须强制转化
  System.out.println(loginform.getName());
  if(loginform!=null){      //必须判断,否则抛出空指针异常
  if(loginform.getName().equals("sunxf")& loginform.getPassword().equals("sunxf"))
      {back="success";}
  else {back="error";}
  }
  return mapping.findForward(back);
 }}

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