java8-stream-filter 数组去重
目标:方法:
目标:
对目标数组去重,并筛选出要用的数组
方法:
idList
.stream().distinct();
list
.stream().filter(coo
->idList
.contains(coo
.get("cooperationId").toString()));
相当于:
idList
.stream().distinct();
list
=list
.stream().filter((Map
<String, String> coo
)->(
idList
.contains(coo
.get("cooperationId").toString())
)).collect(Collectors
.toList());
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