不建議在jsp頁面中直接寫語句串連資料庫

來源:互聯網
上載者:User
1.jsp
<%@ page contentType="text/html;charset=gb2312" language="java" import="java.sql.*" %>
<%ResultSet rs;
Connection conn;
Statement Stmt;
String sql="";

String userName="DB_USERNAME";
String userPwd="DB_PASSWORD";
String serverName="DB_SERVER";
String DBName="DATABASE_NAME";

String driverName = "org.gjt.mm.mysql.Driver";
Class.forName(driverName).newInstance();
String url = "jdbc:mysql://" + serverName + "/" + DBName;
conn = DriverManager.getConnection(url, userName, userPwd);
Stmt = conn.createStatement();
sql = "select * from userinfo";
rs = Stmt.executeQuery(sql);
%>
<body>
<%while(rs.next()){%>
<p>
<%=rs.getString("username")%>
</p>
<%}%>
<body>
這樣也能連資料庫,但是會讓別人在源檔案中看到自己的資料來源,不安全,不推薦使用。

相關文章

聯繫我們

該頁面正文內容均來源於網絡整理,並不代表阿里雲官方的觀點,該頁面所提到的產品和服務也與阿里云無關,如果該頁面內容對您造成了困擾,歡迎寫郵件給我們,收到郵件我們將在5個工作日內處理。

如果您發現本社區中有涉嫌抄襲的內容,歡迎發送郵件至: info-contact@alibabacloud.com 進行舉報並提供相關證據,工作人員會在 5 個工作天內聯絡您,一經查實,本站將立刻刪除涉嫌侵權內容。

A Free Trial That Lets You Build Big!

Start building with 50+ products and up to 12 months usage for Elastic Compute Service

  • Sales Support

    1 on 1 presale consultation

  • After-Sales Support

    24/7 Technical Support 6 Free Tickets per Quarter Faster Response

  • Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.