articlereply.java

JDBC数据库高级编程源代码

package jdbcbook.msgboard;

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

import jdbcbook.pub.util.*;

/**
 * 留言回复前的处理Servlet
 */
public class ArticleReply extends HttpServlet 
{

	public void doPost(HttpServletRequest request, HttpServletResponse response)
		throws IOException, ServletException
	{
		// 检查用户的权限
		if( !AuthorityBean.isAdmin( request, response ) )
		{
			return;
		}

		// 得到用户要修改的留言的主键
		int nArticleID = RequestUtil.getInt( request, "articleid", 0 );
		boolean founded = false;
		if( nArticleID > 0 )
		{
			// 得到要回复的留言
			Article art = ArticleBean.getArticle( nArticleID );
			if( art!=null )
			{
				request.setAttribute( "art", art );
				founded = true;
			}
		}
		if( !founded )
		{
			// 没有找到该留言，设置提示信息
			RequestUtil.setMsg( this, request, "notfundarticle" );
		}

		// 跳转到留言回复页面
		RequestDispatcher dispatcher = request.getRequestDispatcher( "articlereply.jsp" );
		dispatcher.forward( request, response );

	}

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