用戶登錄的驗證完整程序

　　public String validateUser(String inputUserid String inputPwd)

　　throws SQLException{

　　String returnString = null;

　　String dbUserid = userid; // Your Database user id

　　String dbPassword = password ; // Your Database password

　　ClassforName(sunjdbcodbcJdbcOdbcDriver);

　　Connection con = DriverManagergetConnection(jdbc:odbc:myDriver

　　dbUserid dbPassword );

　　Statement stmt = concreateStatement();

　　String sql= select USERID from USERTABLE where USERID = +

　　inputUserid + and PASSWORD = + inputPwd + ; ;

　　ResultSet rs = stmtexecuteQuery(sql);

　　if (rsnext())

　　{

　　returnString = rsgetString(USERID);

　　}

　　stmtclose();

　　conclose();

　　return returnString ;
From:http://tw.wingwit.com/Article/program/Java/hx/201311/26419.html