使用工具半自动化开发struts

一使用工具开发struts有两种方式

1 用工具引入struts包和配置文件，然后自己配置struts-config.xml，完成开发。或称半自动化。

2 完全依赖myeclipse提供的工具完成struts开发。或称全自动化。

二实例——半自动化实现登录验证系统

1 使用工具建立web工程

2 导入struts开发包

自动引入struts开发包，自动生成struts-config.xml以及web.xml，并完成一些配置。

3 开发login.jsp页面

<%@ 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 'login.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 >

< form action = "/strutstool1/login.do" method = "post" >

u: < input type = "text" name = "username" >< br />

p: < input type = "password" name = "password" >< br />

< input type = "submit" value = "login" >

</ form >

</ body >

</ html >

4 开发action和actionForm

LoginAction代码

package com.cakin.actions;

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.cakin.forms.UserForm;

public class LoginAction extends Action {

@Override

public ActionForward execute(ActionMapping mapping, ActionForm form,

HttpServletRequest request, HttpServletResponse response)

throws Exception {

//把form转成对应的UserForm对象

UserForm userForm=(UserForm)form;

if("123".equals(userForm.getPassword())){

//把名字存放到request对象域

//request.setAttribute("username", userForm.getUsername());

return mapping.findForward("ok");

}

else{

return mapping.findForward("err");

}

UserForm代码

package com.cakin.forms;

import org.apache.struts.action.ActionForm ;

public class UserForm extends ActionForm {

private String username ;

private String password ;

public String getUsername() {

return username ;

}

public void setUsername(String username) {

System. out .println( "actionservlet调用，传入用户" +username);

this . username = username;

}

public String getPassword() {

return password ;

}

public void setPassword(String password) {

this . password = password;

}

5 手动配置struts-config.xml文件

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

<! DOCTYPE struts-config PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 1.3//EN" " http://struts.apache.org/dtds/struts-config_1_3.dtd" ; >

< struts-config >

< form-beans >

< form-bean name = "userForm" type = "com.cakin.forms.UserForm" ></ form-bean >

</ form-beans >

< global-exceptions />

< global-forwards />

< action-mappings >

< action path = "/login" name = "userForm" type = "com.cakin.actions.LoginAction" >

< forward name = "ok" path = "/WEB-INF/ok.jsp" ></ forward >

< forward name = "err" path = "/WEB-INF/err.jsp" ></ forward >

</ action >

</ action-mappings >

< message-resources parameter = "com.cakin.struts.ApplicationResources" />

</ struts-config >

6 开发ok.jsp和err.jsp

<%@ page language = "java" import = "java.util.*" import = "com.cakin.forms.*" pageEncoding = "utf-8" %>