Struts2学习-横切关注点

1.建空项目

2.建包

3.建类

4.编写

package com.nf.action;

import com.opensymphony.xwork2.ActionInvocation;

import com.opensymphony.xwork2.interceptor.MethodFilterInterceptor;

public class MeetIntercepter extends MethodFilterInterceptor {

    protected String doIntercept(ActionInvocation actionInvocation) throws Exception {

        System.out.println("化妆...");

        actionInvocation.getStack().setValue("face","第2个女朋友");

        String s = actionInvocation.invoke();

        System.out.println("卸妆");

        return s;

    }

}

package com.nf.action;

import com.opensymphony.xwork2.ActionSupport;

public class MyAction1 extends ActionSupport{

    private String face = "火星人";

    public String getFace() {

        return face;

    }

    public void setFace(String face) {

        this.face = face;

    }

    @Override

    public String execute() throws Exception{

        System.out.println("一起吃饭，展现："+face);

        return this.NONE;

    }

}

其他几个基本是一样的，就不发了

5.编写struts.xml

<?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>

    <package name="mypackage" extends="struts-default">

        <interceptors>

            <interceptor name="meet" class="com.nf.action.MeetIntercepter"></interceptor>

            <interceptor-stack name="myStack">

                <interceptor-ref name="meet"></interceptor-ref>

                <interceptor-ref name="defaultStack"></interceptor-ref>

            </interceptor-stack>

        </interceptors>

        <default-interceptor-ref name="myStack"></default-interceptor-ref>

        <action name="a1" class="com.nf.action.MyAction1"></action>

        <action name="a2" class="com.nf.action.MyAction2"></action>

        <action name="a3" class="com.nf.action.MyAction3"></action>

    </package>

</struts>

运行项目时

http://localhost:8080/ss/a1

ps：网上有关于横切关注点的内容，请自行学习更多的有关内容。（难）

地址：https://gitee.com/MuNianShi/user6.git