javaweb小项目——MyBBS

BBS

tiezi。jsp

<%@ page pageEncoding="GB18030"%>
<%@ page
	import=" com.jingtian.db.*,com.jingtian.javabean.*,java.util.*,java.sql.*"%>


<%--=new java.text.SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(a.getPdate())--%>
<%
	request.setCharacterEncoding("GBK");
	int i = 1;
	List
 list = new ArrayList
();
	String str = "select * from article where pid=0";
	ResultSet rs = DB.executeQuery(str);
	while (rs.next())//游标由0指向第一条数据
	{
		Article article = new Article();
		article.init(rs);//一一对应
		list.add(article);
	}
%>






	发表新主题
		<%
			for (Article a : list) {
		%>
		
		<%
			}
		%>

	

		
主题
		

			
 <%="【" + i++ + "】" + a.getCont()%> 
			
<%=new java.text.SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(a.getPdate())%>
			
删除
			
		
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zhankai。jsp

 

<%@ page pageEncoding="GB18030"%>
<%@ page import="com.jingtian.db.*,com.jingtian.javabean.*,java.util.*,java.sql.*"%>

<%
	int i = 0;
	int id = Integer.parseInt(request.getParameter("id"));//String强转化为int类型
	List
 list = new ArrayList
();
	treeBianLi(list, id,0);
%>
<%
	Article articleFu = null;
	String str = "select * from article where id=" + id;
	ResultSet rs = DB.executeQuery(str);
	while (rs.next())//光标由0指向第一条数据
	{
		articleFu = new Article();
		articleFu.init(rs);//一一对应
	}
%>
<%!private void treeBianLi(List
 list, int id,int grade) {
		String str = "select * from article where pid=" + id + "";
		ResultSet rs = DB.executeQuery(str);
		try {
			while (rs.next()) {
				Article article = new Article();//覆盖了，为什么
				article.init(rs);
				article.setGrade(grade);
				list.add(article);
//				System.out.print(article.getCont());
				if (!article.getIsLeaf()) {
					treeBianLi(list, article.getId(),grade+1);
				}
			}
		} catch (SQLException e) {
			e.printStackTrace();
		}
	}
	%>









	
		<%
			for (Article a : list) {System.out.print(a.getGrade());
			String pstr="---------";
			for(int j=0;j
		
		<%
			}
		%>
	

		

			
主题
		
		

			

				<%
					i++;
					out.print("【" + i + "楼】");
				%>
			
			
<%=articleFu.getCont()%>
<%=new java.text.SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(articleFu.getPdate())%>
			
回复
		

			

				<%
						i++;
						out.print("【" + i + "楼】");
						a.setGrade(i);
				%>
			
			

				<%
					
						out.print(pstr+""+a.getCont());
				%>
			
<%=new java.text.SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(a.getPdate())%>
			
回复
			
		

reply。jsp

<%@ page language="java" import="java.util.*" pageEncoding="GB18030"%>
<%
int id = Integer.parseInt(request.getParameter("id"));
int rootid = Integer.parseInt(request.getParameter("rootid"));
%>


  
    
  
  
  
    

    	
    	
		标题:
 
		内容:

		 	
    
  

 

 replyDatabase。jsp

<%@ page pageEncoding="GB18030"%>
<%@ page
	import=" com.jingtian.db.*,com.jingtian.javabean.*,java.sql.*"%>
	


<%
	request.setCharacterEncoding("GBK");
	int pid = Integer.parseInt(request.getParameter("pid"));
	int rootid = Integer.parseInt(request.getParameter("rootid"));
	String title = request.getParameter("title");
	String cont = request.getParameter("cont");
	
	
	String str1="update  article set isLeaf =1 where id="+pid;
	DB.executeUpdate(str1);
	
	
	String str2="insert into  article  values(null,'"+pid+"','"+rootid+"','"+title+"','"+cont+"',now(),'0')";
	DB.executeUpdate(str2);
	response.sendRedirect("zhankai.jsp?id="+rootid);
%>

newzhuti。jsp

<%@ page language="java" import="java.util.*" pageEncoding="GB18030"%>
<%@ page import=" com.jingtian.db.*,com.jingtian.javabean.*,java.sql.*"%>

<%
	request.setCharacterEncoding("GBK");
	String action = request.getParameter("action");
	if (action != null &&action.equals("post")) {
		String title = request.getParameter("title");
		String cont = request.getParameter("cont");
		
		String str1="insert into  article  values(null,'0','1','"+title+"','"+cont+"',now(),'0')";
		DB.executeUpdate(str1);
		
		String str2="select * from article where pid=0";
		ResultSet rs=DB.executeQuery(str2);
		while(rs.next())
		{
	int id=rs.getInt("id");
	String str3="update article set rootid ="+id+" where id="+id;
	DB.executeUpdate(str3);
		}
		response.sendRedirect("tiezi.jsp");
	}
%>







	

		
		 标题:

		内容:
		
 
	

delete。jsp

<%@page import=" com.jingtian.db.DB"%>
<%@ page language="java" contentType="text/html; charset=GB18030"
	pageEncoding="GB18030"%>
<%
	int rootid = Integer.parseInt(request.getParameter("rootid"));
	String str = "delete from article where rootid=" + rootid;//"delete from article where id = " + id
	DB.executeUpdate(str);
	response.sendRedirect("tiezi.jsp");
%>

tieziFlat。jsp

<%@ page pageEncoding="GB18030"%>
<%@ page
	import=" com.jingtian.db.*,com.jingtian.javabean.*,java.util.*,java.sql.*"%>
<%
	int i = 1;

	final int PAGE_SIZE = 4;
	int pageNo = 1;
	String strPageNo = request.getParameter("pageNo");
	if (strPageNo != null && !strPageNo.trim().equals("")) {
		try {
			pageNo = Integer.parseInt(strPageNo);
		} catch (NumberFormatException e) {
			pageNo = 1;
		}
	}
	if(pageNo <= 0) pageNo = 1;
	
	
	int totalPages = 0;
	ResultSet rsCount = DB.executeQuery("select count(*) from article where pid = 0");
	rsCount.next();
	int totalRecords = rsCount.getInt(1);
	/* ResultSet rsCount2 = DB.executeQuery("select * from article where pid = 0");
	int totalRecords2=0;
	while(rsCount2.next())
	{
		totalRecords2++;
	}
	System.out.print(totalRecords2); */
	
	
	totalPages = (totalRecords + PAGE_SIZE-1)/PAGE_SIZE;
	/* if(totalRecords % PAGE_SIZE>=1)
		totalPages = totalRecords/ PAGE_SIZE+1;
	else 
		totalPages = totalRecords/ PAGE_SIZE;*/
	if (pageNo > totalPages)pageNo = totalPages; 

	int startPos = (pageNo - 1) * PAGE_SIZE;
	String sql = "select * from article where pid = 0 order by pdate desc limit "+ startPos + "," + PAGE_SIZE;
	ResultSet rs = DB.executeQuery(sql);
	List
 list = new ArrayList
();
	while (rs.next()) {
		Article a = new Article();
		a.init(rs);
		list.add(a);
	}
%>







	发表新主题
		<%
			for (Article a : list) {
		%>
		
		<%
			}
		%>

	

		
主题
		

			
 <%="【" + i++ + "】" + a.getCont()%> 
			
<%=new java.text.SimpleDateFormat("yyyy-MM-dd HH:mm:ss")
						.format(a.getPdate())%>
			
删除
			
		
	

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