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用java怎么把这样的json数据解析成数组？json数据的格式如下：[{"a":"111","b":"222","c":"333"},{"a":"1000","b":"2000","c":"000"},{"a":"999","b":"300","c":"700"}]我希望把a对应的数据全部放到一个

DataStage菜鸟入门文档适合datastage入门的学员