Struts1.x配置 实现表单验证

配置一个struts有以下几个步骤

一、导入struts的需要的lib

二、编写struts-config.xml文件

三、编写web.xml文件

四、进行struts编码

这里我们要使用struts1实现一个简单的登录验证过程

struts-config.xml

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

<!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="LoginForm" type="cn.wudi.LoginForm"></form-bean>

</form-beans>

<action-mappings>

<action path="/login" type="cn.wudi.LoginAction" name="LoginForm">

<forward name="loginSuccess" path="/LoginSuccess.jsp"></forward>

<forward name="loginFailure" path="/LoginFailure.jsp"></forward>

</action>

</action-mappings>

</struts-config>

配置form-bean   这里我们自己写了一个LoginForm继承了org.apache.struts.action.ActionForm再配置action   LoginAction继承了org.apache.struts.action.Action   并且加入两个可跳转的页面

web.xml

<?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">

<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>

<load-on-startup>0</load-on-startup>

</servlet>

<servlet-mapping>

<servlet-name>action</servlet-name>

<url-pattern>*.do</url-pattern>

</servlet-mapping>

</web-app>

加入org.apache.struts.action.ActionServlet   并且设置url-pattern为*.do 代表所有.do表单都提交给action

LoginForm.java

package cn.wudi;

import org.apache.struts.action.ActionForm;

public class LoginForm extends ActionForm {

private String username = null;

private String password = null;

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;

}

}

LoginForm.java

package cn.wudi;

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;

public class LoginAction extends Action {

@Override

public ActionForward execute(ActionMapping mapping, ActionForm form,

HttpServletRequest request, HttpServletResponse response)

throws Exception {

LoginForm loginForm = (LoginForm)form;

if (loginForm.getUsername().equals("wudi")) {

return mapping.findForward("loginSuccess");

}else{

return mapping.findForward("loginFailure");

}

}

}