添加线程和异步耗时操作的过载。

Adding threaded and async overloads for time consuming operations.

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异步获取耗时操作的结果。

Getting the long-running result asynchronously.

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但是这两个主要部分——启动一个调用的Portlet和获取耗时操作的数据的Servlet如何一起交互呢？

But how do the two main parts — the portlet which starts one call, and the servlet which gets the long-running data — interact together?

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