Struts 1.1 安装、示例篇

袁爱静888

袁爱静888

2016-02-19 12:45

下面这个Struts 1.1 安装、示例篇教程由图老师小编精心推荐选出,过程简单易学超容易上手,喜欢就要赶紧get起来哦!

  在前一篇文章中,我们具体的介绍了Struts 1.1 的工作原理,接着将会介绍它的安装,以及一个具体的应用。
  1. Struts 1.1 安装
  安装Struts 1.1 比较简单。假设我们使用的是Tomcat 5.0,并且安装在D: omcat下。首先,请到http://jakarta.apache.org/struts/ 下载Struts 1.1,解压缩后,可以看到jakarta-struts-1.1目录,在这个目录下面,你可以看到这样一个目录:webapps.该目录下面有多个*.war,我们copy struts-blank.war 文件到D: omcatwebapps下,restart Tomcat,在Tomcat 的webapps下就会生成一个struts-blank空白Struts开发环境。另外,在你解压缩的目录下的webapps中 struts-example.war 是一个很好的struts学习教程,假如你想深入学习请访问http://jakarta.apache.org/struts 或者 下载 《Struts in Action》 E 文版。
  2. 一个简单的例子
  2.1 Logon.jsp
  %@ taglib uri="/WEB-INF/struts-Html.tld" prefix="html" %
  %@ page contentType="text/html; charset=gb2312" %
  %
  /**
   * This page shows Logon interface.
   * Title: LogoN SYSTEM
   * Description: Logon Page
   * Copyright: Copyright (c) 2004
   * Company: www.ewe.com.cn
   * @author bluesunny hyjun2001@163.com
   * @version 1.0
   */
  response.setHeader("Pragma","No-cache");
  response.setHeader("Cache-Control","no-cache");
  response.setDateHeader("EXPires", 0);
  %
  html
  head
  titleLogon/title
  /head
  body
  html:errors/
  html:form action="/Logon" focus="username"
  username:html:text property="username" size="25"/
  passWord:html:password property="password" size="25"/
  html:submit property=submit/
  /html:form
  /body
  /html
  页面为用户登陆页面,应用到Struts的html标签。
  2.2 LogonForm.Java
  package com.Logon.app;
  import javax.servlet.http.*;
  import org.apache.struts.action.*;
  /**
  * This page shows LogonForm.java
  * Title: LogoN SYSTEM
  * Description: LogonForm Page
  * Copyright: Copyright (c) 2004
  * Company: www.ewe.com.cn
  * @author bluesunny
  * @version 1.0
  */
  public class LogonForm extends ActionForm{
  private String username;
  private String password;
  public LoginForm() {
  username = null;
  password = null;
  }
  public void setUsername(String username){
  this.username = username;
  }
  public String getUsername() {
  return this.username;
  }
  public void setPassword(String password){
  this.password = password;
  }
  public String getPassword(){
  return this.password;
  }
  public void reset(ActionMapping mapping, HttpServletRequest request)
  {
  username = null;
  password = null;
  }
  }
  这个页面为ActionForm bean ,主要是用来封装客户端的用户名与密码。
  2.3 LogonAction.java
  package com.Logon.app;
  import java.io.*;
  import java.sql.*;
  import org.apache.struts.action.Action;
  import org.apache.struts.action.ActionForward;
  import org.apache.struts.action.ActionMapping;
  import org.apache.struts.action.ActionForm;
  import javax.servlet.*;
  import javax.servlet.http.*;
  import org.apache.struts.action.*;
  /**
  * This page shows LogonAction.java
  * Title: LogoN SYSTEM
  * Description: LogonAction Page
  * Copyright: Copyright (c) 2004
  * Company: www.ewe.com.cn
  * @author bluesunny
  * @version 1.0
  */
  public class LogonAction extends Action{
  public ActionForward execute(ActionMapping actionMapping, ActionForm actionForm, HttpServletRequest request, HttpServletResponse response)throws Exception{
  LogonForm form = (LogonForm)actionForm;
  ActionErrors errors = new ActionErrors();
  String username = form.getUsername();
  String password = form.getPassword();
  If(username.equals(bluesunny) && password.equals(bluesunny)){
  return actionMapping.findForward("sUCcess");
  }else{
  errors.add("login",new ActionError("Logon.failed"));
  saveErrors(request,errors);
  return actionMapping.findForward("failed");
  }
  }
  }
  取得ActionForm中的数据,进行处理,处理结果返回到Jsp页面。
  2.4 web.XML
  ?xml version="1.0" encoding="ISO-8859-1"?
  !DOCTYPE web-app
   PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
   "http://java.sun.com/j2ee/dtds/web-app_2_3.dtd"
  web-app
   display-nameStruts Logon Application/display-name
   !-- Standard Action Servlet Configuration (with debugging) --
   servlet
   servlet-nameaction/servlet-name
   servlet-classorg.apache.struts.action.ActionServlet/servlet-class
   init-param
   param-nameconfig/param-name
   param-value/WEB-INF/struts-config.xml/param-value
   /init-param
   init-param
   param-namedebug/param-name
   param-value2/param-value
   /init-param
   init-param
   param-namedetail/param-name
   param-value2/param-value
   /init-param
   load-on-startup2/load-on-startup
   /servlet
   !-- Standard Action Servlet Mapping --
   servlet-mapping
   servlet-nameaction/servlet-name
   url-pattern*.do/url-pattern
   /servlet-mapping
  !-- The Welcome File List --
   welcome-file-list
   welcome-fileLogon.jsp/welcome-file
   /welcome-file-list
   !-- Struts Tag Library Descriptors --
   taglib
   taglib-uri/tags/struts-bean/taglib-uri
   taglib-location/WEB-INF/struts-bean.tld/taglib-location
   /taglib
   taglib
   taglib-uri/tags/struts-html/taglib-uri
   taglib-location/WEB-INF/struts-html.tld/taglib-location
   /taglib
   taglib
   taglib-uri/tags/struts-logic/taglib-uri
   taglib-location/WEB-INF/struts-logic.tld/taglib-location
   /taglib
   taglib
   taglib-uri/tags/struts-nested/taglib-uri
   taglib-location/WEB-INF/struts-nested.tld/taglib-location
   /taglib
   taglib
   taglib-uri/tags/struts-tiles/taglib-uri
   taglib-location/WEB-INF/struts-tiles.tld/taglib-location
   /taglib
  /web-app
  
  2.5 struts-config.xml
  ?xml version="1.0" encoding="ISO-8859-1" ?
  !DOCTYPE struts-config PUBLIC
   "-//Apache Software Foundation//DTD Struts Configuration 1.1//EN"
   "http://jakarta.apache.org/struts/dtds/struts-config_1_1.dtd"
  struts-config
  form-beans
  form-bean name="LogonForm" type=" com.Logon.app.LoginForm"/
  /form-beans
  action-mappings
  action
  path="/Logon" type="com.Logon.app.LogonAction" name="LogonForm" scope="request" input="Logon.jsp"
   forward name="success" path="/success.jsp"/
   forward name="failure" path="/Logon.jsp"/
  /action
  message-resources parameter="resources.application"/
  /struts-config
  2.6 application.properties
  Logon.failed = Logon failed!Please Logon in again!
  
  2.7 deploy Logon Application
  创建一个success.jsp,输入:"successflly!".
  编译源文件,并且把该应用程序部署在TOMCAT里,假设部署在app目录下面。我们可以启动浏览器访问:http://localhost:8080/app/.
  2.8 目录结构
  /WEB-INF :
  / WEB-INF/lib : Struts.jar
  / WEB-INF/classes :
  / WEB-INF/classes/com/Logon/app : *.class
  / WEB-INF/classes/resources : *.properties
  
  3. 总结
  本文具体讲解了安装方法,并且举了一个登陆例子作为Struts框架应用。另外,本文对Struts的目录结构也有说明,这大大减轻了初学者学习负担,应该可以作为Struts入门之用。

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