catalogservlet.java

用java+Ajax做的图书商城

package shoppcart;

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

import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;

import javax.servlet.*;
import javax.servlet.http.*;

public class CatalogServlet extends HttpServlet {
    private static final String CONTENT_TYPE = "text/html; charset=UTF-8";

    public void init(ServletConfig config) throws ServletException {
        super.init(config);
    }

    public void doGet(HttpServletRequest request, 
                      HttpServletResponse response) throws ServletException, IOException {response.setContentType(CONTENT_TYPE);
        PrintWriter out = response.getWriter();
        String strCatalog=request.getParameter("catalog");

        BookCatalog catalog=BookCatalog.getBookCatalog(strCatalog);
        List<Product>list=Product.getProductList(catalog.getType());
        
        Iterator iterator=list.iterator();
        StringBuffer content=new StringBuffer(""); 
        response.setContentType("text/xml"); 
        response.setHeader("Cache-Control","no-cache");
        content.append("<?xml version=\"1.0\"   encoding=\"UTF-8\" ?>");
        content.append("<list>");
        while(iterator.hasNext()){
            Product product=(Product)iterator.next();
            content.append("<product>");
            content.append("<catalog>" + catalog.getName() + "</catalog>");
            content.append("<id>" + product.getID()+"</id>");
            content.append("<name>"+ product.getName() +"</name>");
            content.append("<publisher>"+product.getPublisher() +"</publisher>");
            content.append("<price>" + product.getPrice()+"</price>");
            content.append("<count>"+ product.getCount() +"</count>");
            content.append("<img>" + product.getSrc() + "</img>");
            content.append("<info>" + product.getInfo() + "</info>");
            content.append("");
            content.append("</product>");
        }
        content.append("</list>");
        out.print(content);
        out.close();
    }
}