categoryupdateservlet.java

来自「JDBC数据库高级编程源代码」· Java 代码 · 共 44 行

package jdbcbook.photo;

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

import jdbcbook.pub.util.*;

/**
 * 增加和修改照片分类信息
 */
public class CategoryUpdateServlet extends HttpServlet
{

	public void doPost(HttpServletRequest request, HttpServletResponse response)
						throws IOException, ServletException
	{
		// 创建一个Category Bean
		Category category = new Category();
		// 初始化对象属性
		RequestUtil.populate( request, category );

		// 保存照片分类信息
		boolean result = CategoryBean.updateCategory( category );
		// 处理保存结果
		if( result )
			RequestUtil.setMsg( this, request, "updatecategorysuccess" );
		else
			RequestUtil.setMsg( this, request, "updatecategoryfailure" );

		// 跳转到categorylist Servlet
		RequestDispatcher dispatcher = request.getRequestDispatcher( "categorylist" );
		dispatcher.forward( request, response );
	}

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