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There are two main techniques for developing Web applications in Java, namely Servlets and JSPs. A servlet is a Java program executed on the server side, and a program called a servlet container (which is actually a server) is responsible for executing Java programs. The JSP (Java Server page) is a page that is executed by the JSP container .
DifferenceThe most important difference between servlet and JSP is that the servlet is dominated by Java programs, the output of HTML code needs to use the OUT.PRINTLN function, that is, in Java embedded HTML, and JSP is based on HTML pages, When you need to write Java code, you insert Java code directly into the page, which is embedded in the HTML. A typical example is as follows:
JSP file:
<HTML> <Body> <H1> <%Out.println ("JSP"); %> </H1> </Body> </HTML>
servlet file:
Public class Myservlet ... { ... Out.println ("); Out.println ("<body>"); Out.println ("); Out.println ("Servlet"); out.println ("); Out.println ("</body>"); Out.println ("); The JSP is easy to output, and the servlet facilitates logical processing. Therefore, the practical application of the two are often used in combination, their respective roles.
MVC modelThe so-called MVC model is a method of separating data, logic processing and user interface.
In Java, the three parts of MVC correspond to JavaBeans, JSP, and servlet, respectively.
L--jsp and Servlets
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