不过，和处理数据库标识保护一样，如果您愿意编写一些自定义代码，就可以实现此功能。

However, as with database identity projection, if you are willing to write some custom code, you can make this work.

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然而，由于jsp页面将代码和自定义标记库相混合，因此无法在这种环境下良好地工作。

JSP pages, however, with their mix of code and custom tag libraries, cannot function well in this environment.

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标记库允许将自定义标记（例如 ）添加到 JSP 页面，然后在运行时在标记库内将其解析为代码片段。

Tag libraries allow custom tags (for example, ) to be added to a JSP page, which at runtime are resolved into code fragments in, well, tag libraries.

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