autocompleteservlet.java

java web小程序包

package autocomplete.servlet;

import java.io.IOException;
import java.io.PrintWriter;
import java.util.List;

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

import autocomplete.logic.NameService;

/**
 * 
 * <p>Title: AutoCompleteServlet.java</p>
 * <p>Description: </p>
 * <p>Copyright:OnewaveInc Copyright (c) 2007</p>
 * <p>Company: OnewaveInc</p>
 * @author Zhengrw
 * @version 3.0
 */
public class AutoCompleteServlet extends HttpServlet {
	
	public void init(ServletConfig config) throws ServletException{
		
	}
	
	protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException{
		String prefix = request.getParameter("names");
		NameService service = NameService.getInstance();
		List<String> matching = service.findNames(prefix);
		if(matching.size()>0){
			PrintWriter out = response.getWriter();
			response.setContentType("text/xml");
			response.setHeader("Cache-Control", "no-cache");
			
			out.println("<response>");
			for(String name : matching){
				out.println("<name>"+name+"</name>");
			}
			out.println("</response>");
			matching = null;
			service = null;
			out.close();
		}else{
			response.setStatus(HttpServletResponse.SC_NO_CONTENT);
		}
	}

}