编写一个简易的留言薄,实现添加留言和显示留言内容的功能
Posted 刘某人丶
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<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>Insert title here</title> </head> <body> <form action="lyxianshi.jsp" method="post"> ID: <input type="text" name="name"> <br> 回复:<textarea name="testarea" ></textarea> <br> <input type="submit" value="提交"> </form> </body> </html>
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <%@ page import="java.sql.*"%> <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>Insert title here</title> </head> <body> <% String name=new String(request.getParameter("name").getBytes("ISO-8859-1"),"UTF-8"); String testarea=new String(request.getParameter("testarea").getBytes("ISO-8859-1"),"UTF-8"); Connection conn = null; try { Class.forName("oracle.jdbc.driver.OracleDriver"); String strUrl = "jdbc:oracle:thin:@localhost:1521:orcl" ; conn = DriverManager.getConnection(strUrl, "test", "5211314"); System.out.println("连接数据库成功!"); Statement st = conn.createStatement(); st.executeUpdate("insert into liuyan values( ly.nextval,‘"+name+"‘,‘"+testarea+"‘)"); ResultSet rs= st.executeQuery("select * from liuyan order by ly"); while(rs.next()) { String id= rs.getString(2); String liuyan= rs.getString(3); %> <table width="100%" border="1"> <tr height="20" ><td>id:<%=id %></td></tr> <tr height="40" ><td>留言:<%=liuyan %></td></tr> </table> <%--out.print("<br>id:"+ id + " 留言:"+liuyan );--%> <% } rs.close(); st.close(); conn.close(); } catch (Exception e) { // TODO 自动生成的 catch 块 e.printStackTrace(); } %> </body> </html>
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