该文探讨如何在Java环境中构建一个多租户SaaS软件项目，包括设计兼容多租户的Web应用程序，每个租户拥有独立数据库。UI设计上，建议采用元数据驱动的方式，通过配置映射或数据库存储每个租户的定制信息，以实现UI的可配置性。在数据访问层设计中，通过区分数据源和连接池，根据租户标识创建不同的数据库连接。Hibernate提供了对多租户的支持，是实现这一目标的一个选项。
I am architecting a software project and I want to achieve a SAAS (Software As a service) model. I want to design a web application compatible to multi tenancy with separate database per tenant.
How can i design Multi tenant UI in Java environment(UI should be tenant configurable in nature)?
How can I design data access layer for separate database per tenant(Single application instance for multiple tenant database)?
And also suggest me to choose technology stack in Java environment.
Thanks in advance.
解决方案
This post has details on the database architecture for multitenancy.
How can i design Multi tenant UI in Java ...
This depends on the requirement. If the tenants views are completely different, different pages, layout, flow etc, then you can have a page per tenant. Usually the pages are similar except that the data view is different. In that case, same ui can be used across tenants and the view driven by tenant configuration. The view should be metadata driven. The view can be configurable by having a configuration mapping/db where each tenants configuration is stored. The tenant can choose what can be displayed during configuration.
How can I design data access layer for separate database per
tenant....
This is controlled by the data source. You need to essentially differentiate the data connections and connection pools based on the tenant identifier. This can be achieved using a custom data access object where you instantiate the data source for different tenants. Hibernate provides support for multitenancy http://docs.jboss.org/hibernate/orm/4.1/devguide/en-US/html/ch16.html
suggest me to choose technology stack in
This is very broad question. I have some suggestions, take a look at this
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