怎么判断java的socket是否接到了数据，请看
展开全部
一方面，getInputStream中有方法，
int
available()
Returns an estimate of the number of bytes that can be read (or
skipped over) from this input stream without blocking by the next
invocation of a method for this input stream.
另外，还可以读出来看看
int
available()
Returns an estimate of the number of bytes that can be read (or
skipped over) from this input stream without blocking by the next
invocation of a method for this input stream.
另外，还可以读出来看看
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