categorylistservlet.java

JDBC数据库高级编程源代码

package jdbcbook.photo;

import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;
import java.util.*;

import jdbcbook.pub.util.*;

/**
 * 照片分类信息列表Servlet
 */
public class CategoryListServlet extends HttpServlet
{

	public void doPost(HttpServletRequest request, HttpServletResponse response)
						throws IOException, ServletException
	{
		// 得到所有的照片分类信息
		Collection coll = CategoryBean.queryCategory( null );
		// 将照片分类信息设置为request的属性
		request.setAttribute( "categorys", coll );

		// 跳转到照片分类信息显示页面
		RequestDispatcher dispatcher = request.getRequestDispatcher( "category.vm" );
		dispatcher.forward( request, response );
	}

	public void doGet(HttpServletRequest request, HttpServletResponse response)
						throws IOException, ServletException
	{
		doPost( request, response );
	}
}