ASP

Import = "java. util .*"Import = "java. io .*"ContentType = "text/html; charset = gb2312"%> use a MYsql database use JSP to read Mysql Databases String host = "localhost"; // Database hostString database = "pinghui"; // database NameString user

For example, the flag library from the Blazix server cannot be used in your system environment, so do not use the flag library to implement similar functions? This tutorial is for this question. This problem can be solved, but the code is longer.

Although you can put a large piece of program code in a small instruction file, most Java program code is a reusable component called JavaBean. Like ActiveX controls, JavaBean provides known functions and is designed for reuse at any time.The value

1.1 Java Servlet and Its FeaturesServlet is the answer of Java technology to CGI programming. Servlet programs run on the server to dynamically generate Web pages. Compared with traditional CGI and many other CGI-like technologies, Java Servlet is

JavaMail Form To: From: Subject

SimpleSendMessage. javaImport java. util .*;Import javax. mail .*;Import javax. mail. internet .*;Import javax. activation .*;Public class SimpleSendMessage {Public static void main (String [] args ){// Collect the necessary information to send a

I. PrefaceTomcat is a good choice for beginners to execute JSP and Servlet ,. Tomcat is a product of the Apache organization, and sun's support for it is also quite good.Ii. Download and installJAVA official site: jakarta.apache.org, which is also

I. PrefaceOrion is small, but has a lot of functions. If you don't talk about it, you can see its current support:(1) Servlets/JSP(2) EJB(3) HTTP (Note: Web servers such as Apache or IIS are no longer needed)Ii. Download and installFor the Orion

I. PrefaceIn fact, the modified JDBC Data-Source runs in the Servlet and uses JNDI to find the Data Source. I tried it with Orion and simply rewritten this article "6 of the JAVA/JSP Learning Series (MySQL paging example.Ii. Configuration(1)

jsp counter // Out. println (request. getHeader ("Cookie "));String currentRecord = null; // variable for saving textBufferedReader file; // BufferedReader object, used to read file dataString nameOfTextFile = "count.txt ";// ReadFile = new

6.1 CGI variable OverviewIf you are switching from traditional CGI programming to learning Java Servlet, you may have become accustomed to the concept of "CGI variable. CGI variables collect various request information:Some are from HTTP request

Jsp expressions:Copy codeThe Code is as follows:For (int I = 1; I %>For (int j = 1; j %>If (j %> * = } Else%>}%>}%> Javascript:Copy codeThe Code is as follows: 99 multiplication table

Copy codeThe Code is as follows:PageEncoding = "UTF-8" %>BufferedReader in = request. getReader ();StringBuffer jsonStr = new StringBuffer ();String str = "";While (str = in. readLine ())! = Null ){JsonStr. append (str );}JSONObject jsonObj =

Add a JSP custom tag: Add a tld file to the WEB-INF folder firstXsi: schemaLocation = "http://java.sun.com/xml/ns/j2ee web-jsptaglibrary_2_0.xsd"Version = "2.0"> myTag JSTL core 1.0 cnweb http://www.cnweb.cn MyTag when cn. example. when

Define entities in jspBeanClu"Class =" cn. domain. CacluBean "> Clu"> Get the bean property value and output the value to the page; EL expression:$ {Object name}When an el expression is used to retrieve data, it usually uses a. sign or a. Sign.

File Upload:Copy codeThe Code is as follows:Public class UploadServlet extends HttpServlet {@ OverrideProtected void doGet (HttpServletRequest req, HttpServletResponse resp)Throws ServletException, IOException {DoPost (req, resp );}@

Use customized labelsAlthough you can embed Java code on the JSP page and execute it on the server, JSP also supports using custom tags to insert dynamic content, it has a mechanism that allows you to insert your own HTML-like tags into JSP pages.

Package coreservlets;Import java. io .*;Import javax. servlet .*;Import javax. servlet. http .*;Import java. util .*;/** Shows all the parameters sent to the servlet via either* GET or POST. Specially marks parameters that have* No values or

 File operations are an important part of website programming. asp has discussed a lot about file operations. Let's take a look at how jsp is implemented.Compile file. After compiling the javabean file, place the class file in the corresponding

10.1 session status overviewThe Stateless feature of HTTP brings about a series of problems. Especially when shopping through online stores, the server cannot remember the previous transactions smoothly, which becomes a serious problem. It makes it