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Transferred from: http://www.cnblogs.com/JemBai/archive/2010/11/10/1873954.htmlStruts+spring action should be configured as scope= "prototype"scope="prototype" class="Quickstart.action.PersonAction" > "Personservice"/>But for those DAO implementation class referral Scope= "Singleton", because these classes have no state, with Singleton only need to mainta

I used to understand the meaning of the scope attribute of the bean, and today I did an experiment, and finally I almost got it. Posted out to share with you. The example is simple, the bean's function is to take the current time, and its code is: Common.java: -------------------- Package XX; Import Java.util.Date; Import java.text.*; public class Common { Date D=new date (); public string Now (string s) { SimpleDateFormat formatter = new SimpleDate

The scope and scope of JavaScript is the most painful part of my study, because I spent a lot of time looking at a lot of technical documentation that I didn't understand. In general know what meaning, and then can not say why.I have summed up the following understanding through my extensive testing and technical documentation, although not very technical but I do understand.1, JavaScript only global and lo

ProcessInt g_ I = 0; Int g_k = 0;Message msg; Receive (msg)Scope{Body (){Scope{Body{G_ I = 1; G_k = 1;}Compensation1{ G_k = 2;Print2 (g_ I ); Print2 (g_k );}}Throw exception;}Exceptions{Catch (System. Exception ex){ G_ I = 2;Call Compensation1;}}}Print1 (g_ I ); Print1 (g_k ); //-------------------------------- The result is: Print1 Print2 G_ I 2 1 G_k 1 2

Source: http://blog.sina.com.cn/s/blog_7ea513bf0100s1qt.html Scope: variables are stored inProgramScope of action inIt can be divided into global scope, local scope, and statement scope.Scope priority: the smaller the range, the higher the priority.Scope OPERATOR: ":"If you want to use a global variable with the same name within the

Let's take a look at the following code: ^ Above: ABC is displayed at the beginning, and XYZ is displayed in 2 seconds. * Internal synchronization is allowed. app.controller("ctrl", function ($scope, $timeout) { $scope.name = "ABC"; $timeout(function () { //$scope.name = "XYZ"; //console.log("ctrl :" + $scope.name); }, 2000); }); app.directive("dir", function ($time

Javascript: traversing the prototype chain, calling stack, and scope chain In JavaScript, there are three common chain structures: prototype chain, call stack (Call StackScope chain. This article does not want to talk about the basic knowledge of these concepts, but rather shows how to traverse the three chain structures to deepen understanding. Traverse prototype chain In JavaScript, any object has its own prototype chain. A prototype chain consist

In spring, there are five types of beans in scope: The default is singleton mode,SingletonPrototypeRequestSessionGlobal sessionWhen configuring scopes, using the Scope property, the XML file is configured as followsTo view the official spring documentation, explain the following:1, Singleton If a bean is configured as Singelton, it indicates that the bean has only one instance in the spring IOC container, t

() as a class function, that is, as a function of a class itself, instead of any object of this class. There are class functions, but there are no classes of variables. In fact, there is no object at all when the function is called. Thus a function of a class can use no object (but local or global variables can be used), and you can not use $this variable at all. In the example above, class B redefined the function example (). The original defined function example () in Class A is masked and no

"OC" Point syntax and member variable scope, js variable scopeI. Point syntax(1) Recognition point syntaxDeclare a Person class: 1 #import Implementation of the Person class: 1 # import "Person. h "2 3 @ implementation Person 4-(void) setAge :( int) age 5 {6 _ age = age; 7 NSLog (@" setAge "); 8 9 // will lead to an endless loop 10 // self. age = age; // [self setAge: age]; 11} 12-(int) age13 {14 NSLog (@ "age"); 15 return self-> _ age; 16 17 // will