- Netbeans连接数据库
- NetBeans项目的“项目属性”中“库”一栏中。Tab页“编译和运行”中已经加上jdbc的驱动文件
- Connection conn = null;//连接数据库的对象
- PreparedStatement pstmt = null;//执行sql对象
- try {
- try {
- Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver");
- } catch (ClassNotFoundException ex) {
- Logger.getLogger(NewJFrame.class.getName()).log(Level.SEVERE, null, ex);
- }
- conn = DriverManager.getConnection("jdbc:sqlserver://localhost:1433;DatabaseName=task", "sa", "sa");
- String sql = "select * from userInfo where username='" + username + "'and password='" + password + "'";
- System.out.println(username);
- System.out.println(password);
- pstmt = conn.prepareStatement(sql);
- ResultSet rs = pstmt.executeQuery();
- if (rs.next()) {
- System.out.println("登录成功!");
- //response.setHeader("refresh", "3;URL=userCenter.jsp");//登陆成功跳转到用户中心
- } else {
- System.out.println("失败!");
- }
- } catch (SQLException e) {
- System.out.print("错误!\n");
- System.out.println(e);
- }
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