action

Struts2拦截器

坚强是说给别人听的谎言 提交于 2020-02-12 03:10:36
转自:http://blog.csdn.net/qjyong/article/details/1824607 Struts2 拦截器 (Interceptor) ++YONG 原创,转载请注明 1. 理解拦截器 1.1. 什么是拦截器: 拦截器,在 AOP ( Aspect-Oriented Programming )中用于在某个方法或字段被访问之前,进行拦截然后在之前或之后加入某些操作。拦截是 AOP 的一种实现策略。 在 Webwork 的中文文档的解释为——拦截器是动态拦截 Action 调用的对象。它提供了一种机制可以使开发者可以定义在一个 action 执行的前后执行的代码,也可以在一个 action 执行前阻止其执行。同时也是提供了一种可以提取 action 中可重用的部分的方式。 谈到拦截器,还有一个词大家应该知道——拦截器链( Interceptor Chain ,在 Struts 2 中称为拦截器栈 Interceptor Stack )。拦截器链就是将拦截器按一定的顺序联结成一条链。在访问被拦截的方法或字段时,拦截器链中的拦截器就会按其之前定义的顺序被调用。 1.2. 拦截器的实现原理: 大部分时候,拦截器方法都是通过代理的方式来调用的。 Struts 2 的拦截器实现相对简单。当请求到达 Struts 2 的 ServletDispatcher 时,

android四大组件之BroadcastReceiver开机启动

生来就可爱ヽ(ⅴ<●) 提交于 2020-01-29 04:12:25
和其他BroadcastReceiver一样需要配置接收的广播信息,然后配置权限 <receiver android:name="com.example.kaijistart.BootReceiver" > <intent-filter > <action android:name="android.intent.action.BOOT_COMPLETED"/> </intent-filter> </receiver> <uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED"/> 然后就在BroadcastReceiver里进行intent跳转就可以了 package com.example.kaijistart; import android.content.BroadcastReceiver; import android.content.Context; import android.content.Intent; public class BootReceiver extends BroadcastReceiver { public BootReceiver() { } @Override public void onReceive(Context context, Intent

struts2的Action访问

此生再无相见时 提交于 2020-01-28 14:53:55
struts2中Action的编写有三种方式,这里不再进行介绍。本文介绍Action的三种访问方式。 方法一: 通过method方法(一般小驼峰命名) ​ ​ ​ ​ <action name="userLogin" class="crm.action.UserAction" method="login"> <result name="login">/login.jsp</result> <result name="success" type="redirect">/index.htm</result> </action> ​ ​ 方法二: 通配符 类名_*(常用) <!-- 通配符 --> <action name= "linkMan_*" class="com.dsx.action.LinkManAction" method="{1}"> <result name="save">/linkman/linkManlist.jsp</result> <result name="del">/linkman/linkManlist.jsp</result> </action> <!-- *代表任意字符,method中的{1}代表name属性中的出现的第一个*所代表的字符--> 方法三: 动态调用 在动态方法调用时,action配置不指定method,而在访问时后面为动作名

Is it possible in Liferay to add custom Resource-Actions to my portlet?

独自空忆成欢 提交于 2020-01-24 08:51:07
问题 I create my portlet with Liferay (sdk 6.1), by deploy the portlet gets some default resource-actions, but I need some actions more. Because I want implement some complex permission based portlet. And I don't want create a Ext-Plugin to customize '../resource-actions/default.xml'. 回答1: Did you see this liferay wiki post and this SO question. If you did and those were not helpful please give more details. 回答2: You can set your own user action permissions on the portlet you have created. This

Is it possible in Liferay to add custom Resource-Actions to my portlet?

喜你入骨 提交于 2020-01-24 08:50:05
问题 I create my portlet with Liferay (sdk 6.1), by deploy the portlet gets some default resource-actions, but I need some actions more. Because I want implement some complex permission based portlet. And I don't want create a Ext-Plugin to customize '../resource-actions/default.xml'. 回答1: Did you see this liferay wiki post and this SO question. If you did and those were not helpful please give more details. 回答2: You can set your own user action permissions on the portlet you have created. This

Selenium: horizontal scroll using Actions class

柔情痞子 提交于 2020-01-23 20:47:29
问题 I have tried various to access this custom scroll bar on my web page through Selenium actions as well as Javascript Executor. The scroll bar scrolls through only 500 pixels when in fact I want it to scroll throughout the complete width. Any help is appreciated. Below is my current code snippet: WebElement slider = element("slider_div"); WebElement scrollbar = element("scrollbar"); int w = slider.getSize().getWidth(); Actions move = new Actions(driver); move.dragAndDropBy(e, offset, 0).build()

Sonata Admin Action Button to Pre Filtered List

别来无恙 提交于 2020-01-23 07:56:03
问题 I am rather new to Symfony (2 weeks) so forgive my ignorance. I am trying to add a custom action button that will link to a pre filtered list of a RELATED entity. I have done a lot of research but can't quite seem to find what I need. Currently I have two entities Books and Authors with a manyToOne relation ship. I have these set up in Sonata Admin in the usual way and all works well. I even have an author filter on the book list page which I am hoping can be leveraged to accomplish my goal.

Sonata Admin Action Button to Pre Filtered List

房东的猫 提交于 2020-01-23 07:54:10
问题 I am rather new to Symfony (2 weeks) so forgive my ignorance. I am trying to add a custom action button that will link to a pre filtered list of a RELATED entity. I have done a lot of research but can't quite seem to find what I need. Currently I have two entities Books and Authors with a manyToOne relation ship. I have these set up in Sonata Admin in the usual way and all works well. I even have an author filter on the book list page which I am hoping can be leveraged to accomplish my goal.

How can I invoke multiple actions from a single form?

旧巷老猫 提交于 2020-01-21 18:59:06
问题 I have a jsp file in which I have a form. It shows data about an "account" data structure we have. There's a button to remove the data from that data structure. <form action="removeThisData.html" method="post"> ... blah blah blah ... <input type="submit" value="Remove"/> </form> Now, there's a component that I want to be editable. Basically, I want that third blah to be turned into a date. Here's what I wish I could do. <form action="removeThisData.html" method="post"> ... blah blah blah ...

C# 的 Func<T> Action<T> Predicate<T>

自作多情 提交于 2020-01-21 11:41:58
void Demo_Func_Action( ) { Func<double, double, double> func = UseByFunc; Action<double, double> action = UseByAction; Predicate<double> predicate = UseByPredicate; Console.WriteLine("Func 返回:{0}", UseByFunc(10, 20)); Console.WriteLine("Predicate 返回:{0}", predicate(1)); } // 将会给Func用,因为Func是可以返回结果的 public double UseByFunc(double x, double y) { return x + y; } //给Action用,因为Action是不返回的 public void UseByAction(double x, double y) { Console.WriteLine("Action 内部结果:{0}",x-y); } public bool UseByPredicate(double a) { return true; } 总结: 1.Func<T>是有返回值的泛型委托,格式为Func<T1,T2,T..N,TResult>,T1,T2,T..N为多个参数