java.lang.IllegalStateException: stream has already been operated upon or closed

時間 2019-12-04

標籤 java.lang.illegalstateexception java lang illegalstateexception stream operated closed 欄目 Java 简体版

原文原文鏈接

Stream 只能被使用一次 code DoubleStream ds = channelOrderList.stream().mapToDouble(o -> o.getPrincipal().doubleValue()); double sum = ds.sum(); long count = ds.count(); 因此代碼修改成ip double sum = channelOrderLis

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1. 【Java沒基礎】關於stream has already been operated upon or closed問題
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1. 【Java沒基礎】關於stream has already been operated upon or closed問題
2. ApplicationContext has been closed already
3. java.lang.IllegalStateException: getOutputStream() has already been called for
4. java.lang.IllegalStateException: BeanFactory not initialized or already closed
5. java.sql.SQLException: Connection has already been closed.
6. java.lang.IllegalStateException: getOutputStream() has already been called for this response
7. springmvc java.lang.IllegalStateException: getOutputStream() has already been called for this respon
8. java.lang.IllegalStateException: getWriter() has already been called for this response
9. java.lang.IllegalStateException: BeanFactory not initialized or already closed - call 'refres...
10. java.lang.IllegalStateException: BeanFactory not initialized or already closed - call 'refresh' befo

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