Struts1入门案例

Struts1入门案例

写一个注册页面，把请求交给 struts处理

<form action="${pageContext.request.contextPath }/Register.do" method="post">
用户名：<input type="text" name="username"><br/>
密码：<input type="password" name="password"><br/>
邮箱：<input type="text" name="email"><br/>
<input type="submit" value="注册">
</form>

导入struts开发包，并在web.xml文件配置struts(ActionServlet)处理所有.do请求

<servlet>
<servlet-name>ActionServlet</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>
<load-on-startup>2</load-on-startup>

</servlet>

<servlet-mapping>
<servlet-name>ActionServlet</servlet-name>
<url-pattern>*.do</url-pattern>
</servlet-mapping>

在web-inf目录中加入struts的配置文件：struts-config.xml，并配置struts收到请求后找RegisterAction处理，并配置在找RegisterAction处理请求之前，把数据封装到formbean中

<?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="UserFormBean" type="cn.csx.web.formbean.UserFormbean"></form-bean>
</form-beans>

<!-- 配置struts收到请求后找一个action处理 -->

<action-mappings>
<action path="/Register" type="cn.csx.web.action.RegisterAction" name="UserFormBean"></action>
</action-mappings>

</struts-config>

把封装数据formbean，以及处理请求的RegisterAction写出来

public class RegisterAction extends Action {

@Override
public ActionForward execute(ActionMapping mapping, ActionForm form,
HttpServletRequest request, HttpServletResponse response)
throws Exception {

UserFormbean bean = (UserFormbean) form;
System.out.println(bean.getUsername());
System.out.println(bean.getPassword());
System.out.println(bean.getEmail());

try{
System.out.println("向数据注册用户！！");
request.setAttribute("message", "注册成功");
request.getRequestDispatcher("/message.jsp").forward(request, response);

}catch (Exception e) {
request.setAttribute("message", "注册失败");
request.getRequestDispatcher("/message.jsp").forward(request, response);
}

return null;
}

}