我正在尝试通过JDBC连接到Azure SQL数据仓库。我收到以下异常。
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com.microsoft.sqlserver.jdbc.SQLServerException: The TCP/IP connection to the host tcsqldatawh.database.windows.net, port 1433 has failed. Error: "null. Verify the connection properties. Make sure that an instance of SQL Server is running on the host and accepting TCP/IP connections at the port. Make sure that TCP connections to the port are not blocked by a firewall.".
at com.microsoft.sqlserver.jdbc.SQLServerException.makeFromDriverError(SQLServerException.java:191)
at com.microsoft.sqlserver.jdbc.SQLServerException.ConvertConnectExceptionToSQLServerException(SQLServerException.java:242)
at com.microsoft.sqlserver.jdbc.SocketFinder.findSocket(IOBuffer.java:2280)
at com.microsoft.sqlserver.jdbc.TDSChannel.open(IOBuffer.java:493)
at com.microsoft.sqlserver.jdbc.SQLServerConnection.connectHelper(SQLServerConnection.java:1387)
at com.microsoft.sqlserver.jdbc.SQLServerConnection.login(SQLServerConnection.java:1068)
at com.microsoft.sqlserver.jdbc.SQLServerConnection.connectInternal(SQLServerConnection.java:904)
at com.microsoft.sqlserver.jdbc.SQLServerConnection.connect(SQLServerConnection.java:451)
at com.microsoft.sqlserver.jdbc.SQLServerDriver.connect(SQLServerDriver.java:1014)
at java.sql.DriverManager.getConnection(DriverManager.java:664)
at java.sql.DriverManager.getConnection(DriverManager.java:270)
at testsqldw.SQLDatabaseConnection.main(SQLDatabaseConnection.java:30)
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我已经看到有关连接到SQLServer DB here的类似问题。
我将数据库配置为允许使用流程here访问我的IP。
请检查以下代码:
package testsqldw;
import java.sql.*;
public class SQLDatabaseConnection {
// Connect to your database.
// Replace server name, username, and password with your credentials
public static void main(String[] args) {
String connectionString =
"jdbc:sqlserver://databaseserver.database.windows.net:1433;"
+"database=databaseserver;"
+"user=username@databaseserver;"
+ "password=password;"
+ "encrypt=true;"
+ "trustServerCertificate=false;"
+ "hostNameInCertificate=*.database.windows.net;"
+ "loginTimeout=30;";
System.out.println("Total connection string is---\n"+connectionString);
// Declare the JDBC objects.
Connection connection = null;
Statement statement = null;
ResultSet resultSet = null;
try {
connection = DriverManager.getConnection(connectionString);
// Create and execute a SELECT SQL statement.
String createSql = "create table employee(employee_id varchar(20));";
statement = connection.createStatement();
boolean status=statement.execute(createSql);
System.out.println(status);
// Print results from select statement
}
catch (Exception e) {
e.printStackTrace();
}
finally {
// Close the connections after the data has been handled.
if (statement != null) try { statement.close(); } catch(Exception e) {}
if (connection != null) try { connection.close(); } catch(Exception e) {}
}
}
}
总连接字符串是
JDBC:SQLSERVER://databaseserver.database.windows.net:1433;数据库= DATABASESERVER;用户=用户名@ DATABASESERVER;密码=密码;加密= TRUE; trustServerCertificate = FALSE; hostNameInCertificate = * database.windows.net。 ; loginTimeout = 30;
请帮我解决问题。
答案 0 :(得分:1)
根据我的经验,问题可能是由以下原因引起的:
出于第一个原因,您可以使用一些客户端工具连接到SQL Server。如果您可以连接到服务器,则表明SQL服务器正常。 如果没有,您可以创建一个新的SQL Server。之后,您可以根据此URL https://azure.microsoft.com/en-us/documentation/articles/sql-data-warehouse-get-started-provision/创建新的SQL数据仓库。 该URL还包括防火墙配置方法。
我使用SQL Server InTouch连接到SQL Server。以下是一些描述图片。
您可以通过Azure门户获取参数。端口号是1433。
以下图片表明您的服务器正常。
出于第二个原因,您可以从azure门户复制连接字符串并仅修改密码。
希望它有所帮助。如有任何疑虑,请随时告诉我。