Created
March 12, 2023 07:26
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[Java Stream 流使用] #stream
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| public void stream(){ | |
| List<String> myList = | |
| Arrays.asList("a1", "a2", "b1", "c2", "c1"); | |
| //查找第一个符合条件的 | |
| myList | |
| .stream() | |
| .filter(x -> x.getClass().equals(StringHttpMessageConverter.class)) | |
| .findFirst() | |
| .orElse(null); | |
| //根据条件过滤，获取所有符合条件的元素集合 | |
| Arrays.stream(clazz.getMethods()) | |
| .filter(m -> m.getName().equalsIgnoreCase(methodName)) | |
| .filter(m -> Modifier.isPublic(m.getModifiers())) | |
| .collect(Collectors.toList()); | |
| //遍历每个元素 | |
| cachedWorkbook.values() | |
| .forEach(w -> FileUtils.deleteFile(w.cachedFileName)); | |
| } |
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