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Servlet generates html page

小云云Original: 2017-11-17 15:24:533344browse

Servlet (Server Applet) is the abbreviation of Java Servlet, which is called a small service program or service connector. It is a server-side program written in Java. Its main function is to interactively browse and modify data and generate dynamic Web content.

This Servlet implements the following functions: when a user accesses the Servlet through a browser, the Servlet returns an HTML page to the client browser. Enter the following content in Edit-Plus and compile it to get ShowHtml.class.

import java.io.IOException;    
import java.io.PrintWriter;    
    
import javax.servlet.ServletException;    
import javax.servlet.http.HttpServlet;    
import javax.servlet.http.HttpServletRequest;    
import javax.servlet.http.HttpServletResponse;    
    
public class HelloWorld extends HttpServlet {    
    public void doGet(HttpServletRequest request, HttpServletResponse response)    
            throws ServletException, IOException {    
        response.setContentType("text/html");    
        PrintWriter out = response.getWriter();    
        out.println("<html>");    
        out.println("<head>");    
        out.println("<title>Hello World</title>");    
        out.println("</head>");    
        out.println("<body>");    
        out.println("<h1>Hello World!</h1>");    
        out.println("</body>");    
        out.println("</html>");    
    }    
}

Add in the web.xml file:

<?xml version="1.0" encoding="UTF-8"?>    
<!DOCTYPE web-app PUBLIC "-//Sun Microsystems,Inc.//DTD Web Application 2.3//EN"    
"http://java.sun.com/dtd/web-app_2_3.dtd">    
<web-app>    
    <servlet>    
        <servlet-name>HtmlServlet</servlet-name>    
        <servlet-class>com.JavaBean.ShowHtml</servlet-class>    
    </servlet>    
    <servlet-mapping>    
        <servlet-name>HtmlServlet</servlet-name>    
        <url-pattern>/htmlservlet</url-pattern>    
    </servlet-mapping>    
</web-app>

The above is the operation tutorial on how Servlet generates html pages. Hope it helps everyone.

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