1. JSPJSP (Javaserverpage) would is supplementary for servlets, rather than be substituted. Because the JSP sloves tow problems of Servlet.such as,first,the HTML tags in servlets all must being enclosed by Java String, Thus,make send HTTP Response become a process complicatedly; Second,all texthtml tags must hard-compiling,so even if revise merely for Presentation Layer,we must re-compile the A Pplication.2. JSP
In Web application development, there are many dynamic page language technologies available, such as PHP, ASP, JSP, etc., in these dynamic page language, JSP by virtue of its own advantages to become one of the most favorite language developers. Here are some of the importan
I. Introduction and advantages and disadvantages of the mainstream website development language.Now the mainstream web development language mainly includes CGI, ASP, PHP, ASP, JSP and so on.HTML: Of course, this is the most basic language of the Web, and every server language needs its support.(i) ASP of website develo
language, the Java package name and the page encoding character set that need to be imported, and the syntax format of the JSP Directive: The format of the declared property is as follows:The format of the declaring method is as follows:JSP and HTML code are separated by Third, JSP annotation methodShow comments: The format of the display comments embedded in th
The JSP expression language (EL) makes it very easy to access the data stored in JavaBean. JSP El can be used either to create arithmetic expressions or to create logical expressions. You can use integer, floating-point, string, constant True, false, and null within a JSP El expression. Typically when you specify a pro
JSP is used to display dynamic content on a webpage. Generally, java scripts must be embedded in the JSP page to complete complex functions. However, a large number of java scripts make it difficult to maintain JSP pages. A JavaScript-like JSP expression language can be used
El introduction El language was originally JSTL1.0 technology (so El and Jstl together so close and tacit understanding is natural), but from the beginning of the JSP2.0 (JSTL1.1) separated out into the JSP standard. So El does not need any jar packages, he is integrated into the JSP technology itself. Since El Positioning isExpression
Although these content in Baidu search has a bunch, but a lot of actually is the surface description. I would like to know what some of the real developers understand. Of course these programming languages are always just tools.
Reply content:PHP has the advantage of being cross-platform, easy to deploy, easy to maintain, web-based, open source community powerful, and document-rich.
As for the 3 foot separation, not to mention, the world's top 1 million sites, 70% is PHP.
Today MyEclipse deployed a previous test project, found in the JSP in the $ symbol Tomcat started on the page displayed, Baidu Search under others have similar problems appeared. I was reminded that the version set by the Web.xml configuration was 2.5 and I tomcat5 started it. is a version of Tomcat that is below the web, resulting in the $ symbol not being used properly.
The TOMCAT5 is converted to TOMCAT6. The JDK uses 1.6 to start the spring2.5 pr
Reply content:Which is the mainstream platform for the future? Before it was windows, then the Web, then the phone, and then later?
Objective C If it weren't for Apple, we wouldn't have noticed it. In the future, why must be in. NET PHP, JSP these three? Can't it be a new language? At that time everybody thought: Microsoft is so ox, follow it, learn. NET certainly is right, think this words to now also wron
exception must be used in cases where the Second, JSP built-in object corresponding type and scope of action
JSP built-in objects
corresponding type
Function range
Request
Javax.servlet.servletRequest
Request
Response
Javax.servlet.servletResponse
Page
Session
Java.servlet.http.HttpSession
Session
[Servlet JSP] Expression Language ELEL Introduction
Some simple operations or judgments on the acquisition of some simple attributes, request parameters, headers, and cookies in JSP can be processed using the expression language, you can also compile some common function functions as EL functions to reduce some Script
Jsp jstl label language library and jspjstl label
The el language $ {} is used by default in jsp. I didn't expect jstl labels to be unavailable in jsp. You need to import jstl. jar and standard. jar to identify and use them.
If jsp
JSP writes a script-free JSP page:EL: Expressions language: Expression LanguageEl language as long as the goal is to remove Java code from the JSP page. Let the front-end to do the front-end, background focus backstageEl is used only for display purposes, such as if those ca
been changed to the correct IP address for the new machine. Click on the URL in the error message after cannot load to open the following page: You can see that some types are not defined. So it should be an import error for the package. In this way, I copied the required OJDBC-related jars and several imported sdoapi and Sdoutl.jar into the Lib folder under Tomcat 7.0. Note The Lib folder under the Tomcat 7.0 folder. is not in the same directory as the current
Detailed instructions on the use of EL Expression Language and jstl tag library in JSP pages, eljstlLimitations of JavaBean in JSPTo obtain the JavaBean attribute, you must instantiate it.Forced type conversion
If a logic error occurs in page compilation, code execution errors may occur and errors may occur during page compilation on the JSP page.
SolutionSimp
also be placed in the Meta-inf, are no problemTag file describes the label processing class, JSP describes the servlet, both are not operational, note that the label file has There are also Like:Seven, JSTLA total of 5 libraries, we said core, SQL, i18n, FN tag library (is the expression Language function library)We don't speak XML tag library viii. internationalization and Chinese character encodingResour
js|servlet| Display
Because it has been not believed that Java can not mix to display a number of languages of the bug, this weekend to study the servlet, JSP in the multinational language display problem, that is, the servlet's multiple character set problem, because I am not very clear on the concept of character set, so the writing is not necessarily accurate, This is how I understand the character set i
Solve the Problem of JSP + MySQL multi-language text encoding with UTF-8
This problem was solved by myself after several days of hard work. For reprinting, please note the source:Http://blog.donews.com/ralix/
The following are some notes:At any time in the file UTF-8, UTF-8, utf8, utf8 its role is the same. Tomcat, resin, and MySQL are not as stupid as we are. Many articles on the Internet have pointed out
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