【Struts 基础案例】

LoginAction

package k.action;

import k.form.UserForm;
import org.apache.struts.action.*;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

public class LoginAction extends Action {
    @Override
    public ActionForward execute(ActionMapping mapping, ActionForm form,
                                 HttpServletRequest request, HttpServletResponse response) throws Exception {
        UserForm userForm = (UserForm) form;
        System.out.println(userForm.getUserName() + "=====" + userForm.getPassword());
        if ("1".equals(userForm.getPassword())) {
            return mapping.findForward("ok");
        } else {
            return mapping.findForward("err");
        }
    }
}

UserForm

package k.form;

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) {
        this.userName = userName;
    }

    public String getPassword() {
        return password;
    }

    public void setPassword(String password) {
        this.password = password;
    }
}

struts-config.xml

<?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="k.form.UserForm"></form-bean>
    </form-beans>
    <action-mappings>
        <!-- name用于关联某个表单 【path 需要 加 “/”】-->
        <action name="userForm" path="/login" type="k.action.LoginAction">
            <forward name="ok" path="/WEB-INF/wel.jsp"></forward>
            <forward name="err" path="/WEB-INF/err.jsp"></forward>
        </action>
    </action-mappings>
</struts-config>

web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"
         version="3.1">
    <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>2</load-on-startup>
    </servlet>
    <servlet-mapping>
        <servlet-name>action</servlet-name>
        <url-pattern>*.do</url-pattern>
    </servlet-mapping>
    <welcome-file-list>
        <welcome-file>index.jsp</welcome-file>
    </welcome-file-list>
</web-app>

index.jsp

<body>
    <jsp:forward page="WEB-INF/login.jsp"></jsp:forward>
</body>

<form action="/login.do" method="post">
    账号：<input type="text" name="userName"> <br>
    密码： <input type="password" name="password"> <br>
    <input type="submit" value="submit"> <br>
</form>