Spring JPA +在Postgresql中的模式之间动态切换数据源

本文介绍了Spring JPA +在Postgresql中的模式之间动态切换数据源的处理方法，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

我必须按照以下方式修改现有应用程序的设计，

I have to modify design of the existing application according to following manner,

根据上述设计，每个项目都包含其自己的架构，并且映射表(project_schema_table)位于主架构下.所有模式都在一个Postgresql数据库下，将来用户将为他们的新项目创建另一个新模式(按需).

According to above design each project contains it's own schema and that mapping table (project_schema_table) is under main schema. All schemas are under one Postgresql database and in future users will create another new schemas (on demand) for their new projects.

在显示登录窗口之前，我必须列出所有现有项目，并且一旦用户选择了他的项目，我就必须使用相关的架构将其定向到该项目.除主模式外，其他所有项目基础模式都完全相同.

Before displaying login window I have to list all existing projects and once user select his project I have to direct to that project with relevant schema. Other than main schema all other project base schemas are exactly the same.

这是一个桌面应用程序，使用最新版本的Java技术JavaFX，Spring和JPA与Postgresql数据库一起开发.当前它只有一个与项目相关的架构，我必须介绍主架构以及所有其他后续的项目基础架构.

This is a desktop application developed with latest versions of java technologies JavaFX, Spring and JPA with Postgresql database. Currently it has only one project related schema and I have to introduce main schema and all other subsequent project base schemas.

我发现了类似的堆栈溢出帖子，但其中没有任何解决方案.我是否可以使用Spring AbstractRoutingDataSource 吗?或是否有任何其他机制.谢谢.

I have found similar stack overflow post but it didn't contains any solution. Whether I can accomplish this task with Spring AbstractRoutingDataSource ? or is there any other mechanism. Thanks.

推荐答案

您正在寻找的功能称为Multi-Tenancy，而Hibernate从4.x版本开始就支持此功能.请参阅此帖子关于如何使用此功能.

The feature you are looking for is called Multi-Tenancy and Hibernate supports this out of the box from version 4.x onwards. Please see this post on how to use this feature.