elephpant 2021-07-02 11:44 采纳率: 76.2%
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已结题

从List中获取某个值

DataDO{primaryKey=null, sourceId=11618820768178833, dataAttribute='ANA', oneLevel=1, twoLevel=1, threeLevel=1270, value=11.0, qualityFactor=null, saveTime=Wed Jun 30 18:05:00 CST 2021}
DataDO{primaryKey=null, sourceId=11618820768178833, dataAttribute='ANA', oneLevel=1, twoLevel=1, threeLevel=1271, value=46.0, qualityFactor=null, saveTime=Wed Jun 30 18:05:00 CST 2021}
DataDO{primaryKey=null, sourceId=11618820768178833, dataAttribute='ANA', oneLevel=1, twoLevel=1, threeLevel=1272, value=71.0, qualityFactor=null, saveTime=Wed Jun 30 18:05:00 CST 2021}
DataDO{primaryKey=null, sourceId=11618820768178833, dataAttribute='ANA', oneLevel=1, twoLevel=1, threeLevel=1273, value=34.0, qualityFactor=null, saveTime=Wed Jun 30 18:05:00 CST 2021}
DataDO{primaryKey=null, sourceId=11618820768178833, dataAttribute='ANA', oneLevel=1, twoLevel=1, threeLevel=1274, value=62.0, qualityFactor=null, saveTime=Wed Jun 30 18:05:00 CST 2021}
DataDO{primaryKey=null, sourceId=11618820768178833, dataAttribute='ANA', oneLevel=1, twoLevel=1, threeLevel=1275, value=64.0, qualityFactor=null, saveTime=Wed Jun 30 18:05:00 CST 2021}
DataDO{primaryKey=null, sourceId=11618820768178833, dataAttribute='ANA', oneLevel=1, twoLevel=1, threeLevel=180, value=64.0, qualityFactor=null, saveTime=Wed Jun 30 18:05:00 CST 2021}
DataDO{primaryKey=null, sourceId=11618820768178833, dataAttribute='ANA', oneLevel=1, twoLevel=1, threeLevel=181, value=29.0, qualityFactor=null, saveTime=Wed Jun 30 18:05:00 CST 2021}
DataDO{primaryKey=null, sourceId=11618820768178833, dataAttribute='ANA', oneLevel=1, twoLevel=1, threeLevel=182, value=20.0, qualityFactor=null, saveTime=Wed Jun 30 18:05:00 CST 2021}
DataDO{primaryKey=null, sourceId=11618820768178833, dataAttribute='ANA', oneLevel=1, twoLevel=1, threeLevel=183, value=64.0, qualityFactor=null, saveTime=Wed Jun 30 18:05:00 CST 2021}
DataDO{primaryKey=null, sourceId=11618820768178833, dataAttribute='ANA', oneLevel=1, twoLevel=1, threeLevel=184, value=26.0, qualityFactor=null, saveTime=Wed Jun 30 18:05:00 CST 2021}
DataDO{primaryKey=null, sourceId=11618820768178833, dataAttribute='ANA', oneLevel=1, twoLevel=1, threeLevel=185, value=16.0, qualityFactor=null, saveTime=Wed Jun 30 18:05:00 CST 2021}
这些数据保存在一个list中，请取出list中value值，用Java语言

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  • 努力学习Java的小萌新 2021-07-02 14:07
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    List.stream().collect(Collectors.groupingBy(x -> x.getValue()));
    for(String key:collect.keySet())
    System.out.println(key);

    本回答被题主选为最佳回答 , 对您是否有帮助呢?
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