JavaWeb_(SSH)struts.xml核心配置、动态方法调用、结果集的处理

package com.Gary.web;

import org.apache.struts2.ServletActionContext;

import com.Gary.domain.User;
import com.Gary.service.UserService;
import com.opensymphony.xwork2.ActionSupport;
import com.opensymphony.xwork2.ModelDriven;

public class UserAction extends ActionSupport implements ModelDriven<User>{

    public User user = new User();
    
    public String login() throws Exception {
        
        System.err.println("login()方法");
        
        UserService userService = new UserService();
        boolean success = userService.findUser(user);
        if(success)
        {
            return "success";
        }else{
            ServletActionContext.getRequest().setAttribute("error", "用户名或密码错误！！！");
            return "error";
        }
            
    }
    
    //注册
    public String register() throws Exception {
        
        System.err.println("register()方法");
        
        return null;
    }

    
    
    @Override
    public User getModel() {
        // TODO Auto-generated method stub
        return user;
    }
}

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE struts PUBLIC
    "-//Apache Software Foundation//DTD Struts Configuration 2.5//EN"
    "http://struts.apache.org/dtds/struts-2.5.dtd">
    
    
    
    
<struts>
    <!-- name:配置包名 namespace:给action的访问路径定义一个命名空间 -->
    <package name="MyPackage" namespace="/" extends="struts-default">
    
        <!-- action:配置action类
            name：决定了action访问的资源名称  servlet:url-pattern 
            class:action的完整类名
            method:指定调用action中的哪个方法来去处理请求  -->
            
        <action name="LoginAction" class="com.Gary.web.UserAction" method="login">
            <!-- 默认为转发  redirect设置为重定向  -->
            <result name="success" type="redirect">/index.html</result>
            <result name="error">/login.jsp</result>
        </action>
        
        <action name="LoginActionRegister" class="com.Gary.web.UserAction" method="register">
            <!-- 默认为转发  redirect设置为重定向  --> 
            <result name ="success" type="redirect">/index.html</result>
            <result name ="error">/login.jsp</result>
        </action>

        <action name="LoginActionDefault" class="com.Gary.web.DefaultAction" method="execute">
        </action>
        
        <action name="LoginActionImpl" class="com.Gary.web.ImplAction" method="execute">
        
        </action>
    </package>
</struts>

package com.Gary.web;

import com.opensymphony.xwork2.Action;

public class ImplAction implements Action{

    @Override
    public String execute() throws Exception {
        System.out.println("这是实现了Action接口的action");
        return "defaultAction";
    }

    
    
    
}

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE struts PUBLIC
    "-//Apache Software Foundation//DTD Struts Configuration 2.5//EN"
    "http://struts.apache.org/dtds/struts-2.5.dtd">
    
    
    
    
<struts>

    <constant name="struts.devMode" value="true"></constant>
    <constant name="struts.enable.DynamicMethodInvocation" value="true"></constant>

    <!-- name:配置包名 namespace:给action的访问路径定义一个命名空间 -->
    <package name="MyPackage" namespace="/" extends="struts-default">
        <!-- 增加动态方法调用的安全性 -->
        <global-allowed-methods>login,register,kill</global-allowed-methods>
    
        <!-- action:配置action类
            name：决定了action访问的资源名称  servlet:url-pattern 
            class:action的完整类名
            method:指定调用action中的哪个方法来去处理请求  -->
            
        <action name="LoginAction_*" class="com.Gary.web.UserAction" method="{1}">
            <!-- 默认为转发  redirect设置为重定向  -->
            <result name="success" type="redirect">/index.html</result>
            <!-- 默认为转发 -->
            <result name="error">/login.jsp</result>
        </action>


        <action name="LoginActionDefault" class="com.Gary.web.DefaultAction" method="execute">
        
        </action>
        
        <action name="LoginActionImpl" class="com.Gary.web.ImplAction" method="execute">
            <!-- 转发到LoginActionDefault -->
            <result name="defaultAction" type="chain">LoginActionDefault</result>
        </action>
    </package>
</struts>