问题
What is the purpose of TaskExecutor in spring. What problem does it solve ? How is it different from Executors in java concurrent package ?
回答1:
From http://static.springsource.org/spring/docs/2.0.8/reference/scheduling.html
23.4. The Spring TaskExecutor abstraction
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Spring's TaskExecutor interface is identical to the java.util.concurrent.Executor interface. In fact, its primary reason for existence is to abstract away the need for Java 5 when using thread pools. The interface has a single method execute(Runnable task) that accepts a task for execution based on the semantics and configuration of the thread pool.
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回答2:
It's an interface whose implementations wrap around Java 5+ ExecutorService and provide implementations for previous versions of Java that are missing the package java.util.concurrent
来源：https://stackoverflow.com/questions/8209864/what-is-the-purpose-of-taskexecutor-in-spring