Question

以下是我的jdbc代码，这里我想将一条记录插入远程机器，当我使用与本地数据库服务器相同的代码时，我能够成功插入记录。但是当我尝试使用远程机器时，它会抛出以下错误。

请告诉我，为创建连接而传递的参数是否足够，需要添加其他东西。

错误::当我运行上面的代码时，得到以下异常

另请告诉我，如果我在url中传递的连接详细信息足以进行连接，则需要添加其他内容。

为了连接到远程sql server，只有jdbc代码就足够了，或者应该开发为web应用程序。

有人请告诉我我需要做什么，以解决这个问题!!

谢谢

         public class JdbcTestClass {
         public static void main(String [] args) throws SQLException
         {
          try {
         Class.forName("com.mysql.jdbc.Driver");
         Connection con= DriverManager.getConnection("jdbc:mysql://120....:3306/example","root","root");
         Statement st = con.createStatement();
         st.executeUpdate("insert into test.student values(9966,'pradeep',93);");  
         System.out.println("Record Inserted Successfuly :: ");
         if(st != null)
         {
         st.close();
         System.out.println("connection closed successfuly :: "+st);
         }
         if(con != null)
         {
         con.close();
         }
        } 
         catch (ClassNotFoundException e) {
         e.printStackTrace();
         System.out.println("Error In 1st try :: "+e);
         }
        }
        }

Exception in thread "main" com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure Last packet sent to the server was 0 ms ago.

Answer 1

请参阅此网址的答案：

Why I get this error 'Communications link failure The last packet sent...' when connecting to MySQL with Java (Netbeans)?

The problem was with mysql configuration file on the server /etc/mysql/my.cnf

the line : bind-address should point to your server's IP like in this example

bind-address = 192.168.1.5

and not

bind-address = 127.0.0.1

to allow remote access.

在远程sql server中插入记录

1 个答案: