如何在 Java 中获取 SQL Server 存储过程的输出

Question

我有一个通过各种 PRINT 语句产生输出的存储过程。我想在 Java 中获取该输出，但我不知道该怎么做。这能做到吗？

Answer 1

打印语句的输出可通过 SQLWarnings 获得，例如：

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.SQLWarning;
import java.sql.Statement;

public class SQLDatabaseConnection {
    public static void main(String[] args) {
        String connectionUrl =
                "jdbc:sqlserver://YourServerName:1433;"
                        + "database=SomeDB;"
                        + "user=SomeUsername;"
                        + "password=S0meM4gic4lP4ssw0rd;"
                        + "encrypt=true;"
                        + "trustServerCertificate=true;"
                        + "loginTimeout=30;";

        ResultSet resultSet = null;

        try (Connection connection = DriverManager.getConnection(connectionUrl);
            Statement statement = connection.createStatement();) {

            resultSet = statement.executeQuery("print 'Hello, world!'; select getdate() as [Something]");
            while (resultSet.next()) {
                System.out.format("Result set: %s\n", resultSet.getString(1));
            }

            SQLWarning warning = statement.getWarnings();
            while (warning != null)
            {
                System.out.format("Warning: %s\n", warning.getMessage());
                warning = warning.getNextWarning();
            }

        } catch (SQLException e) {
            e.printStackTrace();
        }
    }
}

哪些输出...

Result set: 2021-06-04 00:38:27.567
Warning: Hello, world!