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One or three large instruction elements: 1. Page directive 2. Include directive 3. Taglib instruction two or seven Big Bang element: 1. Forward Action 2. Include Action 3. Param Action 4. Plugin action 5. Usebean Action 6. SetProperty Action 7. GetProperty action three or three large script element: 1. Statement 2. Script 3. An expressionAbove to write about, specifically to be continued ...JSP three major instruction elements, seven action elements,

The three major automatic introductions in ThinkPHP and ThinkPHP. ThinkPHP's three major automatic introductions, ThinkPHP's three major introductions, this article describes ThinkPHP's three major automatic introductions in detail and is a very important application for your reference. For example, ThinkPHP's three

Three major Java features: encapsulation, inheritance, polymorphism, and three major Polymorphism I. Encapsulation Encapsulation is to classify the commonalities (including attributes and methods) of the same class into a class for convenient use. Concept: In the object-oriented programming method, Encapsulation (Encapsulation) refers to a method to package and hide the Implementation Details of abstract in

Exception: Unsupported major. minor version, major. minor This problem occurred when using the latest springboot version today. The exception thrown is: UnsupportedClassVersionError. Open the source code of the exception and look at it. * Thrown when the Java Virtual Machine attempts to read a class * file and determines that the major and minor version number

Tags: Database specificationBecause the relationship between the entities in the database is actually the connection between the data and the numerical value, how the definition of this relation will strictly affect the efficiency and accuracy of the data we manipulate later. So there are many paradigms, of which the three paradigms are the most important. The first paradigm must be satisfied before the second normal form satisfies the second normal form before satisfying the third paradigm. Th

Three major features of Java-Summary of encapsulation knowledge and summary of three major java packages Recently, a friend said that he wanted to say that he was learning java recently. He still had some incomprehension about the object-oriented programming language to help him "transform" faster ", I wrote this article. Because from the perspective of superstructure. All the ideas of object-oriented progr

Six major STL components-iterator, six major stl components Iterator:In addition to the subscript method that is common in other languages to access container elements, the C ++ language provides a completely new method-iterator (iterator) to access container elements. The iterator is similar to a reference and points to an element in the container. In another way, containers are generic data structures, wh

If you ask me why I joined Microsoft, I must be very frank. At first I was not planning to work on software, let alone Microsoft. When I was admitted to college, my father suggested that I select a Computer Major. I say that computer is a tool, not a discipline. Then I chose nuclear power as a major. When I was a graduate student, I bet with my roommate one day to see if I could finish the three most diffic

Four major components of Android, four major components of Android Service is one of the four major components in Android. A service is a component with no interface. It runs in the background and in the current application process. If there is a time-consuming operation, you do not want to have the interface, and you do not want the program to exit and stop the

Five major PHP development applications required for geek programming, five major PHP development With the PHP application can help the coding enthusiasts to improve the quality of the project, with these new and flexible PHP applications make it easier and more convenient to create coding projects. In this article, we have collected five of the latest PHP development applications. PHP applications are not

JSP2.0 Standard Commands, JSP automatic import package, JSP four major scopes, jsp2.0 four major Three commands are defined in the JSP 2.0 specification: Page command Include command Taglib command: import the JSTL tag Library to the JSP page. Replacing java code snippets in jsp JSP automatically imports the following packages: Import java. lang .*; Import javax. servlet .*; Import javax. servlet. http .*;

GIS Major discussion (8): GIS Major Employment Region Su Weimin http://www.gisdev.cn/http://blog.csdn.net/suen/ date: 2008-12-20 All copyrights reserved. If you need to reprint the information, contact the author and indicate the source in a conspicuous position. Followed by the previous article (GIS discussion (7): Overview of GIS professional employment,Http://blog.csdn.net/suen/archive/2008

Let's talk about how to sort the eight major parts of javascript and about the eight major parts of javascript. One month after I started school, I have dreamed of a Data Structure algorithm problem in the written examination. I have more fear of the data structure than any "demons and ghosts. It seems necessary to review frequently-used data structures to avoid the "Nightmare" coming true. The importance o

Four major components of Android development: Service (detailed description) and four major components of android Four components of Android development-Service I. Service Introduction A Service is one of the four main components in the android system (Activity, Service, BroadcastReceiver, and ContentProvider). It is similar to the Activity level. The difference is that the Service can only run in the bac

Six major STL components-imitation function, six major stl components Functor is to make the use of a class or class template look like a function. The implementation is to overload operator () in a class or class template. This class or class template has the behavior of similar functions. The Imitation function is a smart function, just like the behavior of a smart pointer, which can be seen as a pointer.

Three major java Web Components: Listeners and three major java Web listeners Listener Overview Listener (Listener) is a special Servlet technology that can listen to the context information, Servlet request information, and Servlet session information of Web applications, that is, ServletContext, ServletRequest, and HttpSession. The corresponding processing program is called in the background according to

Three major paradigms of database design and three major paradigms of Database Design In order to establish a database with low redundancy and reasonable structure, certain rules must be followed when designing the database. In relational databases, such a rule is called a paradigm. The paradigm is a summary that meets a certain design requirement. To design a rational relational database, a certain paradig

Three major Java versions and three major java versions The Java2 Platform includes the Standard Edition (J2SE), the Enterprise Edition (J2EE), and the mini version (j2s: Standard Edition (Standard Edition) J2SE includes classes that constitute the core of the Java language. Example: Database Link, interface definition, input/output, Network Programming Enterprise Edition (Enterprise Edition

Understand the encapsulation of Java's three major features and java's three major featuresThree features --- Encapsulation Encapsulation literally refers to packaging. The professional point is Information Hiding. It refers to encapsulating data and data-based operations by using abstract data types, make it an inseparable and independent entity. The data is protected inside the abstract data type, and the

Three major Java frameworks-Hibernate and java three major hibernate What is Hibernate? 　　Hibernate is a persistent layer framework based on ORM (O: object, R: relationship, M: ing) ing. It is a lightweight framework that encapsulates JDBC and mainly implements DatabaseCUPDOperation. Note:CRUDIt refers to the abbreviation of the first letter of the words "Create", "Retrieve", "Update", and "Delete" during c