action

js实现表单的提交

别来无恙 提交于 2019-12-06 03:49:18
<form action="" method="post" name="form">   <tr> <td><input type="button" value="跳转到a.jsp" οnclick="a()" class="botton"/></td> <td><input type="button" value="跳转到b.jsp" οnclick="b()" class="botton"/></td> </tr> </form> <script type="text/javascript"> //把表单的action改为a.jsp function Two() { document.form.action = "a.jsp"; document.form.submit(); } //把表单的action改为b.jsp function Three() { document.form.action = "b.jsp"; document.form.submit(); } </script> 来源: https://www.cnblogs.com/1gaoyu/p/11961162.html

Show search bar with action (bar item)

不想你离开。 提交于 2019-12-06 03:23:27
问题 I have a problem with search bar. I need to create a table view with a search button in the right corner, and when I click on it, it should show the search bar. My code is here: // Search controller searchController = ({ let controller = UISearchController(searchResultsController: nil) controller.delegate = self controller.searchBar.delegate = self controller.searchResultsUpdater = self controller.dimsBackgroundDuringPresentation = false controller.hidesNavigationBarDuringPresentation = true

How to deal with list return values in ANTLR

北城以北 提交于 2019-12-06 02:58:40
问题 What is the correct way to solve this problem in ANTLR: I have a simple grammar rule, say for a list with an arbitrary number of elements. list : '[]' | '[' value (COMMA value)* ']' If I wanted to assign a return value for list, and have that value be the actual list of returned values from the production, what is the proper way to do it? The alternatives I'm entertaining are: create my own stack in the global scope to keep track of these lists Try to inspect the tree nodes below me and

Struts2值栈和OGNL

混江龙づ霸主 提交于 2019-12-06 02:29:50
一、首先关于Struts2框架: ①特点: 1、通用性 2、可扩展性 struts2可以自定义类型转换器(尚待深入)、自定义拦截器。 3、非侵入式 不会污染其他模块 ②配置 1、Web工程的web.xml文件配置filter拦截器(拦截*.action请求) 2、struts.xml首先要关联约束文档 <package name="default" namespace="/" extends="strutd-default"> <action name="saveBook" class="com.atguigu.bean.Book" method="save"> <result name="toDetailPage">detailpage.jsp</result> </action> </package> 标签package的作用是定义一个功能模块,其name属性作为标识是必填项,便于其他package引用,extends是继承了默认的配置。namespace也采用了默认配置,如果采用自定义名称空间,则访问这个package中定义的action时,必须在路径中加上名称空间值。 action对应着请求,class属性指定处理请求的类,method属性为处理请求的具体方法,result则对应响应,注意其name属性值。 ③Action类 类中的set方法是注入请求参数

How do I run an action on server startup using Struts2?

允我心安 提交于 2019-12-06 01:42:56
问题 I have to execute a struts2 action on server startup rather than on the first request. 回答1: Loading data on startup of an application is a common task, you will find several examples on the web. As said in other answers, you should implement a ServletContextListener (that is not Struts2 specific)... you can read a great example here. The important thing here is understanding the Action concept: In Struts2 MVC (Model View Controller) Framework, an Action is the Controller (and part of the

How to add custom action to wix setup project

ⅰ亾dé卋堺 提交于 2019-12-06 01:38:48
问题 I have 2 projects in my soliution: 1). Custom action class (CustomAction) 2). Wix setup project (TestSetup) There is CustomAction.cs in CustomAction project: using System; using System.Collections.Generic; using System.IO; using System.Linq; using System.Text; using Microsoft.Deployment.WindowsInstaller; namespace CustomAction { public class CustomActions { [CustomAction] public static ActionResult CustomAction1(Session session) { File.Create(@"c:\installed.txt"); return ActionResult.Success;

C# creating function queue

南楼画角 提交于 2019-12-06 01:31:03
I have written a class called QueueManager: class QueueManager { Queue functionsQueue; public bool IsEmpty { get { if (functionsQueue.Count == 0) return true; else return false; } } public QueueManager() { functionsQueue = new Queue(); } public bool Contains(Action action) { if (functionsQueue.Contains(action)) return true; else return false; } public Action Pop() { return functionsQueue.Dequeue() as Action; } public void Add(Action function) { functionsQueue.Enqueue(function); } public void Add(Func<CacheObject,Boolean> function) { functionsQueue.Enqueue(function); } and when I create an

JSF 1.2 difference between exception in action and actionListener

别等时光非礼了梦想. 提交于 2019-12-06 01:21:34
I've noticed that JSF 1.2. does not return error page when an exception was thrown in actionListener method but does return error page when an exception was thrown in action method. Why is that? Can it return error page in both cases? Any exception which is thrown in a FacesEvent listener method is silently caught and wrapped in a AbortProcessingException and logged to the console. That's just as per the specification. The ActionEvent listener method (as any other FacesEvent listener method) has no responsibility for navigational tasks. The real action method has. Generally, the action

Perform a Segue Called by a UITableViewCell

故事扮演 提交于 2019-12-05 21:15:48
I have some UIButtons in a custom table view cell that when pressed I want them to call segues in the view controller that is host to the table view that the cells are in. What I am doing now is declaring an action like this: - (void)action; in the class that the table view is in. And then I am calling that action from the cell like this: ViewController *viewController = [[ViewController alloc] init]; [viewController action]; However when the action is called it says that there is no such segue for the view controller which I know to be incorrect. Calling "action" from the view controller

BeanUtils.copyProperties与PropertyUtils.copyProperties用法及区别

岁酱吖の 提交于 2019-12-05 21:01:58
一、简介: BeanUtils提供对Java反射和自省API的包装。其主要目的是利用反射机制对JavaBean的属性进行处理。我们知道,一个JavaBean通常包含了大量的属性,很多情况下,对JavaBean的处理导致大量get/set代码堆积,增加了代码长度和阅读代码的难度。它需要Collections包和logging包的支持。 二、用法: BeanUtils是这个包里比较常用的一个工具类,这里只介绍它的copyProperties()方法。该方法定义如下: public static void copyProperties(java.lang.Object dest,java.lang.Object orig) throws java.lang.IllegalAccessException, java.lang.reflect.InvocationTargetException 如果你有两个具有很多相同属性的JavaBean,一个很常见的情况就是Struts里的PO对象(持久对象)和对应的ActionForm,例如 Teacher和TeacherForm。我们一般会在Action里从ActionForm构造一个PO对象,传统的方式是使用类似下面的语句对属性逐个赋值: //得到TeacherForm TeacherForm teacherForm=(TeacherForm