您必须设置一个名为的属性,以oracle.net.tns_admin
指向包含您的tnsnames.ora
文件的文件夹的位置。然后,在@
登录数据库URL 后,从该文件中指定条目。检查下面的例子。您可以在此处找到更多信息:数据源和URL- Oracle文档
import java.sql.*;
public class Main {
public static void main(String[] args) throws Exception {
System.setProperty("oracle.net.tns_admin", "C:/app/product/11.2.0/client_1/NETWORK/ADMIN");
String dbURL = "jdbc:oracle:thin:@ENTRY_FROM_TNSNAMES";
Class.forName ("oracle.jdbc.OracleDriver");
Connection conn = null;
Statement stmt = null;
try {
conn = DriverManager.getConnection(dbURL, "your_user_name", "your_password");
System.out.println("Connection established");
stmt = conn.createStatement();
ResultSet rs = stmt.executeQuery("SELECT dummy FROM dual");
if (rs.next()) {
System.out.println(rs.getString(1));
}
} catch (Exception e) {
e.printStackTrace();
}
finally {
if (stmt != null) try { stmt.close(); } catch (Exception e) {}
if (conn != null) try { conn.close(); } catch (Exception e) {}
}
}
}
来自tnsnames.ora
文件的示例条目:
my_net_service_name =
(DESCRIPTION =
(地址=(此处为一些地址))
(CONNECT_DATA =
(SID = some_SID_name)))
在我的Java示例中,my_net_service_name
string是您必须替代的内容ENTRY_FROM_TNSNAMES
。