JDBC連接類

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.SQLException;

public class DBUtils {

public static final String url = "jdbc:mysql://127.0.0.1/lvyun";  
public static final String name = "com.mysql.jdbc.Driver";  
public static final String user = "root";  
public static final String password = "root";
//開啟連接
public static Connection creatConnection(){
    Connection conn = null;
    try {
        Class.forName(name);
        conn = DriverManager.getConnection(url, user, password);
    } catch (ClassNotFoundException e) {
        e.printStackTrace();
    } catch (SQLException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }
    return conn;
}
//執行語句
public PreparedStatement getps(Connection conn,String sql){
    PreparedStatement ps = null;
    try {
        ps = conn.prepareStatement(sql);
    } catch (SQLException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }
    return ps;
} 
//關閉Connection
public static void close(Connection conn) {  
    if(conn!=null){
        try {
            conn.close();
        } catch (SQLException e) {
            e.printStackTrace();
        }
    }
}  

//關閉PreparedStatement
public static void close(PreparedStatement ps) {  
    if(ps!=null){
        try {
            ps.close();
        } catch (SQLException e) {
            e.printStackTrace();
        }
    }
}  

}
</pre>