這次是怎樣將大象放冰箱的命題了!大家都懂的!
我們要解決的主要有兩個問題:
1、如何擷取輸入的內容
2、如何插入時間。
直接上代碼
<%@ page language="java" import="java.util.*, java.sql.*" pageEncoding="gb2312"%><%String path = request.getContextPath();String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";%><%request.setCharacterEncoding("UTF-8");%> <%response.setCharacterEncoding("UTF-8");%> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><style type="text/css">table{ width:800px; margin:auto; padding: 5px; font-size:12px; border:0px; background:#00CCFF;}tr{ background:#fff;}td{ padding: 5px;}#title{ text-align:center;}</style><head><meta http-equiv="Content-Type" content="text/html; charset=gb2312" /><title>無標題文檔11</title></head><body> <form method=post> 標題:<input type="text" name="title"/><br/> 內容:<input type="text" name="content"/><br/> <input type="submit" value="提交" /> </form> <% //串連MySQL資料庫 Class.forName("com.mysql.jdbc.Driver").newInstance(); String url="jdbc:mysql://localhost:3306/news"; String user="root"; String password="1234"; Connection conn = DriverManager.getConnection(url, user, password); Statement st = conn.createStatement(); %> <table > <tr> <td width="174" id="title">標題</td> <td width="449" id="title">內容</td> <td width="161" id="title">時間</td> </tr> <% ResultSet rs = st.executeQuery("SELECT * FROM data ORDER BY id DESC LIMIT 10"); while(rs.next()){%> <tr> <td width="174" ><%=rs.getString("title") %></td> <td width="449" ><%=rs.getString("content") %></td> <td width="161"><%=rs.getString("time") %></td> </tr><%} %> </table><%//通過input中的name擷取輸入的內容。time那一行是獲得時間及定義時間格式String getTitle=request.getParameter("title"); String getContent=request.getParameter("content");java.text.SimpleDateFormat time = new java.text.SimpleDateFormat( "yyyy-MM-dd HH:mm:ss");String insertSQL = "INSERT INTO data(title, content, time) Values ('"+getTitle+"', '"+getContent+"', ' "+time.format(new java.util.Date())+"')";st.executeUpdate(insertSQL); %><%rs.close();st.close(); conn.close(); %> </body></html>
本代碼有個問題就是每次重新整理網頁都會insert一條!開啟頁面倒是不會。這怎麼解決呢?