如何在Java中执行SQL脚本文件？

本文介绍了如何在Java中执行SQL脚本文件？的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

我想用Java执行一个SQL脚本文件而不将整个文件内容读入大查询并执行它。

I want to execute an SQL script file in Java without reading the entire file content into a big query and executing it.

还有其他标准方法吗？

推荐答案

没有可移植的方法。您可以执行本机客户端作为外部程序来执行此操作：

There is no portable way of doing that. You can execute a native client as an external program to do that though:

import java.io.*; public class CmdExec { public static void main(String argv[]) { try { String line; Process p = Runtime.getRuntime().exec ("psql -U username -d dbname -h serverhost -f scripfile.sql"); BufferedReader input = new BufferedReader (new InputStreamReader(p.getInputStream())); while ((line = input.readLine()) != null) { System.out.println(line); } input.close(); } catch (Exception err) { err.printStackTrace(); } } }

• 代码示例是从此处中提取并修改为回答问题，假设用户需要执行PostgreSQL脚本文件。
• Code sample was extracted from here and modified to answer question assuming that the user wants to execute a PostgreSQL script file.