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