struts_login

1、配置struts
* 拷贝struts lib下的所有jar到WEB-INF/lib下
* 修改web.xml文件，配置ActionServlet
* 提供struts-config.xml文件

修改web.xml文件,加入

<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>

struts-config.xml文件

<?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.bjsxt.struts.LoginActionForm"/>
</form-beans>

<action-mappings>
<action path="/login"
type="com.bjsxt.struts.LoginAction"
name="loginForm"
scope="request"
validate="false"

>
<forward name="success" path="/login_success.jsp"/>
<forward name="error" path="/login_error.jsp"/>
</action>
</action-mappings>
</struts-config>

配置ActionForm Action

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)) {
request.setAttribute("username", username);
return mapping.findForward("success");
}else {
return mapping.findForward("error");
}

}

form:struts会通过Set方法把表单的信息封装到form中

mapping:一个mapping对象对应着一个Action标签，struts会把Action配置信息，

如path,class,scope,forward等放到mapping对象中

path路径要与表单提交的路径一致