JAVA一步一步的WEB编程关于SERVLET〈二〉

王朝java/jsp·作者佚名  2008-05-31
窄屏简体版  字體: |||超大  

上次说到Java一步一步的WEB编程关于jsp与JavaBean

现在说SERVLET,由与内容多所以分几章来说

SERVLET〈一〉

它与别的CGI程序不同的是,它有强大的J2EE做后,配合JSP,JAVABEAN,连接EJB,

等更高一级的应用,这里慢慢说来,不同的SERVLET服务器配置,不同,现在就,语言本身STUDY

这里有一些例子,先看看:

//Hello.class

import java.io.*;

import javax.servlet.*;

import javax.servlet.http.*;

public class Hello extends HttpServlet {

public void doGet(HttpServletRequest req, HttpServletResponse res)

throws ServletException, IOException {

res.setContentType("text/Html");

PrintWriter out = res.getWriter();

String name = req.getParameter("name");

out.println("<HTML>");

out.println("<HEAD><TITLE>Hello, " + name + "</TITLE></HEAD>");

out.println("<BODY>");

out.println("Hello, " + name);

out.println("</BODY></HTML>");

}

public String getServletInfo() {

return "A servlet that knows the name of the person to whom it's" +

"saying hello";

}

}

//HelloWorld.class

//-------------------------------

import java.io.*;

import javax.servlet.*;

import javax.servlet.http.*;

public class HelloWorld extends HttpServlet {

public void doGet(HttpServletRequest req, HttpServletResponse res)

throws ServletException, IOException {

res.setContentType("text/html");

PrintWriter out = res.getWriter();

out.println("<HTML>");

out.println("<HEAD><TITLE>Hello World</TITLE></HEAD>");

out.println("<BODY>");

out.println("<BIG>Hello World</BIG>");

out.println("</BODY></HTML>");

}

}

//

------------------------

//form.html

<HTML>

<HEAD>

<TITLE>IntrodUCtions</TITLE>

</HEAD>

<BODY>

<FORM METHOD=GET ACTION="/servlet/Hello">

If you don't mind me aSKINg, what is your name?

<INPUT TYPE=TEXT NAME="name"><P>

<INPUT TYPE=SUBMIT>

</FORM>

</BODY>

</HTML>

先配置一下,

 
 
 
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