尝试从 selenium 连接到 oracle DB 时出错

Question

我正在尝试使用 jdbc 从 Selenium 连接到 Oracle 数据库，但收到以下消息：

java.sql.SQLRecoverableException: Listener refused the connection with the following error:
ORA-12514, TNS:listener does not currently know of service requested in connect descriptor

我能够从 pl/sql 成功连接到这个数据库，但是从 jdbc 我得到了这个错误。下面是代码。有人可以帮我吗？

    @Test
    public void test11 () {

    String server = "host";
    String port = "1521";
    String database = "db";
    String user = "user";
    String pwd = "pw";

    try {
        String url = "jdbc:oracle:thin:@" + server + ":" + port + "/" + database;

        Connection con = DriverManager.getConnection(url, user, pwd);
        Statement stmt = con.createStatement();

        con.close();
    } catch (Exception e) {
        e.printStackTrace();
    }

LISTENER.ORA：

SID_LIST_LISTENER =
(SID_LIST =
    (SID_DESC =
        (GLOBAL_DBNAME = "net_service_name")
        (ORACLE_HOME = C:\oracle\product\10.2.0\client_1)
        (SID_NAME = "net_service_name")
    )
    (SID_DESC = 
        (GLOBAL_DBNAME = "service_name")
        (ORACLE_HOME = C:\oracle\product\10.2.0\client_1)
        (SID_NAME = "service_name")
    )
)

LISTENER =
(DESCRIPTION_LIST =
    (DESCRIPTION =
        (ADDRESS_LIST =
            (ADDRESS = (PROTOCOL = TCP)(HOST = "host")(PORT = 1521))
        )
    )
)

TNSNAMES.ORA：

"net_service_name"=
  (DESCRIPTION =
    (ADDRESS_LIST =
      (ADDRESS = (PROTOCOL = TCP)(HOST = "host")(PORT = 1521))
    )
    (CONNECT_DATA =
      (SERVER = DEDICATED)
      (SERVICE_NAME = "service_name")
    )
  )

Answer 1

我认为你用错了

String url = "jdbc:oracle:thin:@" + server + ":" + port + "/" + database;

：改为/

试试你的参数

public static void conn() throws ClassNotFoundException, SQLException{  
    Connection con=DriverManager.getConnection(  
            "jdbc:oracle:thin:@localhost:1521:orclpdb", "HR", "HR"); 
    Statement stmt=con.createStatement();  
    ResultSet rs=stmt.executeQuery("select count(*) from dual");  
    while(rs.next())  
        System.out.println(rs.getInt(1));  
    con.close();
}