java servlet jsp cookbook

conditions do I call doGet () and doPost ()? The method attribute in the form label in the Jsp page is doGet () when get is called, and doPost () is called when post is called (). 8. servlet Lifecycle The web container loads the servlet and starts its lifecycle. Call the servlet init () method to initialize the

; Configure user tool1. Add tool (Add application)Menu Text: Compile Java ProgramProgram: C:\JDK\bin\javac.exeParameters: File nameInitial directory: File directory2. Add tool (Add application)Menu Text: Run Java ProgramProgram: C:\JDK\bin\java.exeParameters: File name (without extension)Initial directory: File directoryTool group names can be added casually, such as the Debug

jsp. the getAttribute function can obtain the corresponding values stored in the session. Looking back, we can easily see that the working principle of JSP + JavaBean is different from that of JSP + JavaBean + Servlet. The two-layer structure must put preprocessing in JSP,

third phase of JSP development, the control function is separated from the JSP, use the servlet to realize, form jsp+javabean+servlet this pattern, JSP only completes the input and the output, JavaBean completes the processing, b

server.2. Save data on the serverEven if the user submits the data through the form, the Web server is only processed by the secondary app, and the secondary app may be saved to the database.Second, high-level overviewFirst, what is a container?The servlet does not have a main method. They are controlled by another Java application, and this Java application bec

There are two types of redirection technology: client redirection and server redirection. Client redirection can be achieved by setting specific HTTP headers or writing JavaScript scripts. This article mainly discusses the implementation of server-side redirection technology. Redirection class on JSP server The redirection technology on the JSP server involves several interfaces, including javax.

not be a must simple typeThe most used in the app are GetAttribute and setattribute. A simple example is given to illustrate the application of the session, test1.jsp (information is written to the session), test2.jsp (read the information from the session).Test1.jsp 2 4 6 7 Document 8 9 10 one 12 session.setattribute ("str", New String ("This is Test"), 14

Is your Java application running very slowly? Can they afford to keep up with the rising traffic? This article describes the development of high-performance, highly resilient JSP pages and the performance optimization of the servlet technology. The idea is to build as fast as possible and adapt to a growing number of users and their requests. In this article, I'm

GBK2K support, this is the current stage and the future of the work content. 3.jsp/servlet encoding problem and its solution in was 3.1 Common phenomena of encoding problems Jsp/servlet encoding problems that often appear on the web are generally expressed in browser or application-side, such as: How does the Chine

Answer one: First you have to figure out what a servlet,servlet is a Java program that executes on the server side, except that it has a set of rules (what we normally call APIs); The JSP is simply a servlet program written in another set of simple rules that can write

1 IntroductionThe JSP (Java Server Page) and servlet are the two basic members of the Java EE specification and are the focus of javaweb development.The nature of the JSP is the servlet, which, when the user sends a request to the

existing servers, if it doesn't support a servlet, adding that part is often free (or requires very little investment). 1.2 JSP and its characteristics JavaServer Pages (JSP) is a common static HTML and Dynamic HTML hybrid coding technology, for the description of JSP basic concepts See "

Js|servlet 2.1 Installing the servlet and JSP development tools To learn about servlet and JSP development, you must first prepare a development environment that conforms to the Java Servlet