struts简单入门实例

 
struts入门简单实例

 环境：Ecplise3.2 + Tomcat5.5 + struts1.2.9

 工程结构分布图：

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web.xml文件内容：

<?xml version="1.0" encoding="ISO-8859-1"?>

 

<!DOCTYPE web-app
  PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.2//EN"
  "http://java.sun.com/j2ee/dtds/web-app_2_2.dtd">
 
 
<web-app>
  <display-name>studyStruts</display-name>
  <servlet>
    <servlet-name>action</servlet-name>
    <servlet-class>org.apache.struts.action.ActionServlet</servlet-class>
    <init-param>
      <param-name>config</param-name>
      <param-value>/WEB-INF/struts-config.xml</param-value>
    </init-param>
    <init-param>
      <param-name>debug</param-name>
      <param-value>2</param-value>
    </init-param>
    <init-param>
      <param-name>detail</param-name>
      <param-value>2</param-value>
    </init-param>
    <load-on-startup>2</load-on-startup>
  </servlet>
 
  <servlet-mapping>
    <servlet-name>action</servlet-name>
    <url-pattern>*.do</url-pattern>
  </servlet-mapping>

  <welcome-file-list>
    <welcome-file>login.jsp</welcome-file>
  </welcome-file-list>

    <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>

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struts-config.xml文件内容：

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

<!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="loginForm" type="org.apache.my.form.LoginForm"/>
 </form-beans>
 
 <action-mappings>
  <action
    path="/login"
    type="org.apache.my.action.LoginAction"
    name="loginForm"
    scope="request"
    input="/login.jsp">
   <forward name="success" path="/main.jsp"/>
   <forward name="failed" path="/error.jsp"/>
  </action>
 </action-mappings>
 
 <message-resources parameter="org.apache.my.ApplicationResources">
 
 </message-resources>

</struts-config>

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LoginAction.java文件内容：

package org.apache.my.action;

import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;
import javax.servlet.http.HttpServletResponse;
import org.apache.my.form.LoginForm;
import org.apache.struts.action.Action;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionMapping;

public final class LoginAction extends Action {
  public ActionForward execute(ActionMapping mapping,
    ActionForm form, HttpServletRequest request, HttpServletResponse response)
    throws IOException, ServletException {

    String userName = ((LoginForm) form).getUsername();
    String password = ((LoginForm) form).getPassword();

    if (userName.equals("suihu") && password.equals("sh")) {
      HttpSession session = request.getSession();
      session.setAttribute("loggedIn", "1");
      return mapping.findForward("success");
    }
    else {
         return mapping.findForward("failed");
    }
  }
}

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LoginForm.java文件内容：

package org.apache.my.form;
import org.apache.struts.action.ActionForm;

 

public class LoginForm extends ActionForm {
  public String username="";
  public String password="";
 
public String getPassword() {
    return password;
}
public void setPassword(String password) {
    this.password = password;
}
public String getUsername() {
    return username;
}
public void setUsername(String username) {
    this.username = username;
}
}

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login.jsp文件内容：

<%@ page contentType="text/html;charset=GBK"%>
<%@ taglib uri="/WEB-INF/struts-html.tld" prefix="html"%>
<html:html locale="true">
 <head>
  <title> Struts 主页 </title>
  <html:base/>
 </head>
 <body>
  <html:errors/>
  <br>
  <html:form action="/login" focus="username">
   <table>
    <tr>
     <td>用户名: </td>
     <td><html:text property="username"/></td>
    </tr>
    <tr>
     <td>密码: </td>
     <td><html:password property="password" redisplay="false"/></td>
    </tr>
    <tr>
     <td colspan=2 align=right>
      <html:submit>确定</html:submit>
     </td>
    </tr>
   </table>
  </html:form>
 </body>
</html:html>

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index.jsp文件内容：

 index!!!

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main.jsp文件内容：

success!!!

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error.jsp文件内容：

failed!!!

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实例已完成，启动你的应用服务器查看一下结果吧！