我嘗試使用另一個項目并且連接成功但是從這個項目我只能連接到 localhost mysql。我希望它只在局域網(wǎng)上工作。我收到“用戶'root'@'192.168.1.70'的訪問被拒絕（使用密碼：YES）”來自不工作項目的代碼示例：Connection con = null;    Statement st = null;     ResultSet rs = null;    try{ con = (Connection) DriverManager.getConnection("jdbc:mysql://"+home.credentials[0],home.credentials[1],home.credentials[2]);        st = (Statement) con.createStatement();        String s = "SELECT * FROM meta";        rs = st.executeQuery(s);        ResultSetMetaData rsmt = rs.getMetaData();         while(rs.next()){            int meta = rs.getInt("meta");            goal.setText(Integer.toString(meta));        }     }catch(Exception e){}        finally{         try{ st.close();          rs.close();          con.close();      }        catch(Exception e){ JOptionPane.showMessageDialog(null, "Información no encontrada");      }     }來自另一個成功連接的項目的代碼示例   try    {      // create our mysql database connection      String myDriver = "org.gjt.mm.mysql.Driver";      String myUrl = "jdbc:mysql://192.168.1.66:3306/jjeventoscore";      Class.forName(myDriver);      Connection conn = (Connection) DriverManager.getConnection(myUrl, "root", "");      // our SQL SELECT query.       // if you only need a few columns, specify them by name instead of using "*"      String query = "SELECT * FROM client";      // create the java statement      Statement st = (Statement) conn.createStatement();      // execute the query, and get a java resultset      ResultSet rs = st.executeQuery(query);      }      st.close();    }    catch (Exception e)    {      System.err.println("Got an exception! ");      System.err.println(e.getMessage());    }}