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繼承人我的login屏幕。頂部的editText是「txtbxStudentUsername」,底部的editText是「txtbxStudentLunchID」。Android - JDBC登錄
我正在使用jdbc來與我們的phpadmin wamp mysql服務器在局域網上建立聯繫,因此不會出現因特網SQL問題。
我知道我在閱讀edittext字段並在數據庫中比較它們時遇到問題。還有syntax of my database connection有什麼建議嗎?這是我的代碼。
public void onGotoStudent(View View)
{
String url = "jdbc:mysql://localhost:3306/tardy_system";
String user = "root_user";
String pwd = "root";
Connection con = DriverManager.getConnection(url, user, pwd);
EditText username = (EditText)findViewById(R.id.txtbxStudentUsername);
EditText password = (EditText)findViewById(R.id.txtbxStudentLunchID);
String passChars;
passChars = password.getText().toString();
if(passChars!=null)
{
Class.forName("com.mysql.jdbc.Driver");
Connection con = (Connection) DriverManager.getConnection("jbdc:mysql://localhost/tardy_system/students","Matt_Glover","root");
(PreparedStatement) prepstmt = con.prepareStatement("SELECT Username,Lunch_ID FROM Student where username=? and password=?");
prepstmt.setString(1, username);
prepstmt.setString(2, password);
ResultSet rs;
rs = prepstmt.executeQuery();
boolean found = rs.next();
if (found)
System.out.println(rs.getString(1));
prepstmt.close();
}
PreparedStatement ps = conn.prepareStatement(sql);
ps.setString(1,username);
ps.setString(2,password);
ResultSet rs=password.executeQuery();
if(rs.next()) {
//found
}
else{
//not found
}
rs.close();
ps.close();
conn.close();
}
}
兩德公司爲拉皮條雙倍劑量的? – dtown123 2012-04-16 17:50:08
不確定在Android應用程序中使用MySQL驅動程序是否是個好主意。我認爲你必須做的是在服務器端寫一些東西,你可以從Android發佈POST請求。就像:http://yourserver.com/login.php – Cristian 2012-04-16 17:50:19
請注意,'localhost'將是你的android設備,而不是你的局域網中的設備 – AxelTheGerman 2012-04-16 18:48:07