📄 formbasedhello.java

📁 SUN sl-314 source codes

💻 JAVA

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package org.apache.jsp;

import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import java.io.PrintWriter;
import java.io.IOException;

public class FormBasedHello extends HttpServlet {
	private static final String DEFAULT_NAME = "World";
	
	public void doGet(HttpServletRequest request, HttpServletResponse response)
	throws IOException {
	    generateResponse(request, response);
	}
	
	public void doPost(HttpServletRequest request, HttpServletResponse response)
	throws IOException {
	    generateResponse(request, response);
	}
	
	public void generateResponse(HttpServletRequest request, HttpServletResponse response)
	throws IOException {
	
        // Specify the content type is HTML and charset is Chinese
		response.setContentType("text/html;charset=GBK");
		
		// Determine the specified name (or use default)
	    String name = request.getParameter("name");
	    name = new String(name.getBytes("ISO8859_1"),"GBK");
	    
	    if ( (name == null) || (name.length() == 0) ) {
	        name = DEFAULT_NAME;
	    }
	    	    	   
	    PrintWriter out = response.getWriter();
	    // Generate the HTML response
	    out.println("<HTML>");
	    out.println("<HEAD>");
	    out.println("<TITLE>Hello Servlet</TITLE>");
	    out.println("</HEAD>");
	    out.println("<BODY BGCOLOR='white'>");
	    out.println("<B>Hello, " + name + "</B>");
	    out.println("</BODY>");
	    out.println("</HTML>");
	    out.close();
	}
}

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