struts入门案例

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一 创建一个Web project

 

名称为HelloWorld，创建界面如下：

 

 

二 安装struts

 

截图如下：

 

 

 

三 生成项目后，框架自动生成过滤器

 

xml  version = "1.0"  encoding = "UTF-8" ?>

< web-app  version = "3.0"

         xmlns = " http://java.sun.com/xml/ns/javaee" ;

         xmlns:xsi = " http://www.w3.org/2001/XMLSchema-instance" ;

         xsi:schemaLocation = "http://java.sun.com/xml/ns/javaee

http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"; >

   < display-name > display-name >   

   < welcome-file-list >

     < welcome-file > index.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 >

         < url-pattern > *.action url-pattern >

   filter-mapping > web-app >

 

 

四 框架自动生成struts

 

xml  version = "1.0"  encoding = "UTF-8"  ?>

DOCTYPE  struts  PUBLIC  "-//Apache Software Foundation//DTD Struts Configuration 2.1//EN"  " http://struts.apache.org/dtds/struts-2.1.dtd" ; >

< struts >

 

struts >    

 

五 创建action

 

截图如下：

 

 

package  com.cakin.action;

 

import  com.opensymphony.xwork2.ActionSupport;

 

public  class  HelloWorldAction  extends  ActionSupport {

         @Override

         public  String execute()  throws  Exception {

                System. out .println( "执行Action" );

                 return  SUCCESS ;

        }

}

 

六 配置struts.xml文件

 

xml  version = "1.0"  encoding = "UTF-8"  ?>

DOCTYPE  struts  PUBLIC  "-//Apache Software Foundation//DTD Struts Configuration 2.1//EN"  " http://struts.apache.org/dtds/struts-2.1.dtd" ; >

< struts >

         < package  name = "default"  namespace = "/"  extends = "struts-default" >

                 < action  name = "helloworld"  class = "com.cakin.action.HelloWorldAction" >

                         < result > /result.jsp result >

                 action >

         package >

struts >

 

七 创建result.jsp文件

 

DOCTYPE  HTML  PUBLIC  "-//W3C//DTD HTML 4.01 Transitional//EN">

< html >

   < head >

     < base  href = " <%= basePath %> " >

   

     < title > My JSP 'result.jsp' 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" >

        

 

   head >

 

   < body >

    This is my JSP page.  < br >

   body >

html >

 

八 测试

 

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