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任何可用于LiquiBase的API

[英]Any API available for LiquiBase

原文 2012-08-22 16:12:01 6 1 java/ spring/ maven/ liquibase

There is a requirement about a user interface to provide options to upgrade database change if there is new service pack for current Spring web application(with OpenJPA). 如果有当前Spring Web应用程序（使用OpenJPA）的新Service Pack，则需要有一个用户界面来提供升级数据库更改的选项。

Seems LiquiBase is a good option. 似乎LiquiBase是个不错的选择。 But I haven't found any articles or document about LiquiBase API that can detect new schema change(either from database or change log). 但我没有找到任何关于LiquiBase API的文章或文档，可以检测新的模式更改（来自数据库或更改日志）。 It looks like LiquiBase is more a "silence upgrade" option on development level, so each time developer can create new change log and let Maven to auto upgrade database schema. 看起来LiquiBase在开发级别上更像是“静默升级”选项，因此每次开发人员都可以创建新的更改日志并让Maven自动升级数据库架构。

But is there any option we can provide front end user to click a button to upgrade the schema by their choice, then show user error when it fails and roll back? 但有没有选项我们可以为前端用户提供单击按钮来按自己的选择升级架构，然后在失败时显示用户错误并回滚？ In general is there some Java API can wrap with Spring framework? 一般来说有一些Java API可以用Spring框架包装吗？

Thanks in advance. 提前致谢。

1 个解决方案

I have to say a really hated Liquibase mainly because I just for some reason could not get it to work. 我不得不说一个非常讨厌的Liquibase主要是因为我出于某种原因无法让它工作。

You might want to give this a try: 您可能想尝试一下：

http://flywaydb.org/ http://flywaydb.org/

Otherwise (since it sounds like your shipping a product) you can create two installs: one of the old version and one of the new version. 否则（因为它听起来像是您的产品），您可以创建两个安装：旧版本之一和新版本之一。

Do a schema dump for each install and then diff them. 为每个安装执行架构转储，然后区分它们。 Create an up and down sql script based on the diffs. 根据差异创建一个上下sql脚本。