java批量操作数据库例子

package a;

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;

public class Main {
	private static Connection c = null;
	private static PreparedStatement ps = null;
	private static ResultSet rs = null;

	public static void main2(String[] args) {
		try {
			Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver");
			c = DriverManager.getConnection("jdbc:sqlserver://localhost:1433;;database=wenhua2020;Encrypt=false", "sa",
					"dinglin");

			ps = c.prepareStatement("insert into t_user () values (?, ?, ?, ?, ?, ?)");
			c.setAutoCommit(false);
			for (int i = 0; i < 100; i++) {
				ps.setInt(1, i);
				ps.addBatch();
			}
			ps.executeBatch();
			c.commit();
		} catch (Exception e) {
			e.printStackTrace();
		} finally {
			try {
				if (rs != null) {
					rs.close();
					rs = null;
				}
				if (ps != null) {
					ps.close();
					ps = null;
				}
				if (c != null) {
					c.close();
					c = null;
				}
			} catch (Exception e) {
				e.printStackTrace();
			}
		}

	}

	public static void main(String[] args) {
		try {
			Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver");
			try (Connection connection = DriverManager.getConnection(
					"jdbc:sqlserver://localhost:1433;;database=wenhua2020;Encrypt=false", "sa", "dinglin");
					PreparedStatement preparedStatement = connection.prepareStatement("");) {
				connection.setAutoCommit(false);

				for (int i = 0; i < 100; i++) {
					preparedStatement.setInt(1, i);
					preparedStatement.addBatch();
				}
				preparedStatement.executeBatch();
				connection.commit();
			}
		} catch (Exception e) {
			e.printStackTrace();
		}
	}

}