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java濡備綍鎵归噺鏇存柊鏁版嵁

扬州沐宇科技
2023-08-10 11:32:29
Java

鍦↗ava涓紝鍙互浣跨敤JDBC锛圝ava Database Connectivity锛夋潵鎵归噺鏇存柊鏁版嵁銆備互涓嬫槸涓€涓ず渚嬩唬鐮侊紝婕旂ず濡備綍浣跨敤JDBC鎵归噺鏇存柊鏁版嵁锛?br/>
```java
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.SQLException;

public class BatchUpdateExample {
   public static void main(String[] args) {
       String url = "jdbc:mysql://localhost:3306/mydb"; // 鏁版嵁搴撹繛鎺RL
       String username = "root"; // 鏁版嵁搴撶敤鎴峰悕
       String password = "password"; // 鏁版嵁搴撳瘑鐮?br/>
       try (Connection connection = DriverManager.getConnection(url, username, password)) {
           // 璁剧疆鑷姩鎻愪氦涓篺alse
           connection.setAutoCommit(false);

           // 鍒涘缓鎵归噺鏇存柊鐨凱reparedStatement
           String sql = "UPDATE my_table SET column1 = ? WHERE id = ?";
           PreparedStatement statement = connection.prepareStatement(sql);

           // 娣诲姞鎵归噺鏇存柊鐨勫弬鏁?br/>            statement.setString(1, "new value 1");
           statement.setInt(2, 1);
           statement.addBatch();

           statement.setString(1, "new value 2");
           statement.setInt(2, 2);
           statement.addBatch();

           statement.setString(1, "new value 3");
           statement.setInt(2, 3);
           statement.addBatch();

           // 鎵ц鎵归噺鏇存柊
           int[] updateCounts = statement.executeBatch();

           // 鎻愪氦浜嬪姟
           connection.commit();

           System.out.println("鎴愬姛鏇存柊浜?" + updateCounts.length + " 鏉℃暟鎹?);
       } catch (SQLException e) {
           e.printStackTrace();
       }
   }
}
```

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鎵ц瀹屾壒閲忔洿鏂板悗锛岄渶瑕佽皟鐢–onnection鐨刢ommit鏂规硶鎻愪氦浜嬪姟銆傚鏋滃彂鐢熶换浣曢敊璇紝鍙互璋冪敤Connection鐨剅ollback鏂规硶杩涜鍥炴粴銆?br/>
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