下面列出了怎么用org.springframework.util.ConcurrencyThrottleSupport的API类实例代码及写法，或者点击链接到github查看源代码。
@Test
public void cannotExecuteWhenConcurrencyIsSwitchedOff() throws Exception {
SimpleAsyncTaskExecutor executor = new SimpleAsyncTaskExecutor();
executor.setConcurrencyLimit(ConcurrencyThrottleSupport.NO_CONCURRENCY);
assertTrue(executor.isThrottleActive());
assertThatIllegalStateException().isThrownBy(() ->
executor.execute(new NoOpRunnable()));
}
@Test
public void cannotExecuteWhenConcurrencyIsSwitchedOff() throws Exception {
SimpleAsyncTaskExecutor executor = new SimpleAsyncTaskExecutor();
executor.setConcurrencyLimit(ConcurrencyThrottleSupport.NO_CONCURRENCY);
assertTrue(executor.isThrottleActive());
exception.expect(IllegalStateException.class);
executor.execute(new NoOpRunnable());
}
@Ignore("Disabled because task is still executed when concurrency is switched off")
@Test
public void cannotExecuteWhenConcurrencyIsSwitchedOff() throws Exception {
SimpleAsyncTaskExecutor executor = new SimpleAsyncTaskExecutor();
executor.setConcurrencyLimit(ConcurrencyThrottleSupport.NO_CONCURRENCY);
assertFalse(executor.isThrottleActive());
exception.expect(IllegalStateException.class);
executor.execute(new NoOpRunnable());
}