stream flow problems caused by

　　　　 SearchHit[] searchHits1 = searchHits.get();

　　　　　//方式一
        for (int i = 0; i < searchHits1.length; i++) {
            Map<String, Object> source = searchHits1[i].getSource();
            list.add(source);
        }
　　　　 //方式二
        if (searchHits.isPresent()) {
            Arrays.asList(searchHits.get()).parallelStream().forEach(InternalSearchHit -> list.add(InternalSearchHit.getSource()));
        }

Logic of the code library is isolated from es specified data, and then stored in the set list, returns a page or otherwise processed; The problem here is that, when the second operating mode, the list will be null data, as follows Figure:

 

 

The presence of empty data, it will cause all kinds of unexpected bug, alas, headache ah;

A display into the normal mode;

Why?

The reason: I look carefully. . .

Found, the cause of the stream, and replaced with the following code on it:

        if (searchHits.isPresent()) {
            Arrays.asList(searchHits.get()).stream().forEach(InternalSearchHit -> list.add(InternalSearchHit.getSource()));
        }

 

Here we must talk about the difference of the flow: