Struts逐步学习(1)-环境搭建
1. 首先要下载struts的jar包，地址 http://struts.apache.org/
2. 解压Strusts包后，将lib文件夹里的jar包都加入到项目中WEB-INF下的lib文件夹下
3. 在解压后的webapps文件夹中解压struts-blank.war，将其中的struts-config.xml拷贝到项目中（ 避免手写出错，复制粘贴，做一些配置）
<?xml version="1.0" encoding="ISO-8859-1" ?>
<!DOCTYPE struts-config PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 1.2//EN"
"http://jakarta.apache.org/struts/dtds/struts-config_1_2.dtd">
<struts-config>
<form-beans>
<form-bean name="loginForm" type="com.tgb.struts.LoginActionForm"></form-bean>
</form-beans>
<action-mappings>
<action path="/login"
type="com.tgb.struts.LoginAction"
name="loginForm"
scope="request"
>
<forward name="success" path="/login_success.jsp"></forward>
<forward name="error" path="/login_error.jsp"></forward>
</action>
</action-mappings>
</struts-config>
4. 配置web.xml部署ActionServlet。这个格式是相对固定的，按要求配置路径和类信息
<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.5"
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_2_5.xsd">
<display-name></display-name>
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
<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>
<!-- Standard Action Servlet Mapping -->
<servlet-mapping>
<servlet-name>action</servlet-name>
<url-pattern>*.do</url-pattern>
</servlet-mapping>
</web-app>
5、新建一个LoginAction类，继承 Action：
package com.tgb.struts;
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;
/**
*
* 负责取得表单数据，调用业务逻辑，返回转向信息
* @author Jesse
*
*/
public class LoginAction extends Action {
@Override
public ActionForward execute(ActionMapping mapping, ActionForm form,
HttpServletRequest request, HttpServletResponse response)
throws Exception {
LoginActionForm laf=(LoginActionForm)form;
String username=laf.getUsername();
String password=laf.getPassword();
if("admin".equals(username)&& "admin".equals(password)){
//登陆成功
return mapping.findForward("success");
}else{
//登录失败
return mapping.findForward("error");
}
}
}
6、新建一个LoginActionForm类，继承ActionForm：
package com.tgb.struts;
import org.apache.struts.action.ActionForm;
/**
* 登陆ActionForm，负责表单数收集数据
* @author Jesse
*
*/
@SuppressWarnings("serial")
public class LoginActionForm extends ActionForm {
private String username;
private String password;
public String getUsername() {
return username;
}
public void setUsername(String username) {
this.username = username;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
} 7、login.Jsp页面：
<%@ page language="java" contentType="text/html; charset=GB18030"
pageEncoding="GB18030"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=GB18030">
<title>Insert title here</title>
</head>
<body>
<form action="login.do" method="post" >
用户：<input type="text" name="username"><br>
密码：<input type="password" name="password"><br>
<input type="submit" value="登陆">
</form>
</body>
</html>
8、success.jsp ，error.jsp页面省略，只是一个显示界面。
至此，一个简单的Struts环境登陆实例就搭建起来啦。