我通过lan 2计算机连接。 fisrt pc是服务器并安装了wamp服务器。我通过浏览器从客户端PC使用该服务器。但我的java程序连接到服务器。没有任何错误。 帮我。 这是我的代码剪辑:
public class dataconnection {
public Connection getDBConnection() throws Exception {
Connection conn = null;
Class.forName("com.mysql.jdbc.Driver").newInstance();
String sURL = "jdbc:mysql://192.168.0.102:8081/db_name?useUnicode=true&characterEncoding=UTF-8";
String sUserName = "root";
String sPwd = "pass";
conn = DriverManager.getConnection(sURL, sUserName, sPwd);
return conn;
}
}
以下是: app.class
try {
dataconnection datacon = new dataconnection();
String customername = jTextField1.getText();
String organization = jTextField2.getText();
String serialkey = jTextField3.getText();
GetMacAddress();
String sql = "Select data from cols where id='" + id + "'";
Connection con = datacon.getDBConnection();
PreparedStatement ps = con.prepareStatement(sql);
ResultSet rs = ps.executeQuery();
if (!rs.next()) {
JOptionPane.showMessageDialog(null,
"Invalid",
"Error",
JOptionPane.ERROR_MESSAGE);
}
否则 { bla bla ... }