JAVA集合类进行ListJDK8 的流stream排序List.stream().sorted(Comparator.comparing().thenComparing(Comparator.

落日映苍穹つ 2022-11-24 14:17 136阅读 0赞

# 标题和内容同时进行排序： #

duplicates=  duplicates.stream().sorted(Comparator.comparing(Duplicates::getTitleSimilarity,Comparator.reverseOrder()).thenComparing(Duplicates::getContentSimilarity,Comparator.reverseOrder())).collect(Collectors.toList());

# //列表先按标题相似度降序，再按内容相似度降序 #

duplicates.stream().sorted(Comparator.comparing(Duplicates::getTitleSimilarity).thenComparing(Comparator.comparing(Duplicates::getContentSimilarity).reversed()).reversed()).collect(Collectors.toList());

#    同时进行俩个参数排序 #

duplicates.stream().sorted(Comparator.comparing(Duplicates::getContentSimilarity).reversed());

# 也可以不使用流进行直接排序 #

duplicates.sorted(Comparator.comparing(Duplicates::getContentSimilarity).reversed());

//列表先按标题相似度降序，再按内容相似度降序
                    duplicates.stream().sorted(Comparator.comparing(Duplicates::getTitleSimilarity).thenComparing(Comparator.comparing(Duplicates::getContentSimilarity).reversed()).reversed()).collect(Collectors.toList());
                    duplicates.stream().sorted(Comparator.comparing(Duplicates::getContentSimilarity).reversed());

duplicates.sort(Comparator.comparing(Duplicates::getTitleSimilarity));
    duplicates.sort(Comparator.comparing(Duplicates::getContentSimilarity));

# 排序结果： #

列表先按标题相似度降序，再按内容相似度降序    [
    Duplicates(id=1181588929369, title=测试数据库1, contentSimilarity=0.9392675375220804, titleSimilarity=0.704608271645791), 
    Duplicates(id=1181588929369, title=测试数据库2, contentSimilarity=0.5006453224425479, titleSimilarity=0.4638740932635561),
    Duplicates(id=1181588929369, title=测试数据库0, contentSimilarity=0.8890708399644924, titleSimilarity=0.2732442258286829), 
    Duplicates(id=1181588929369, title=测试数据库3, contentSimilarity=0.643501300281883, titleSimilarity=0.15838141373838144), 
    Duplicates(id=1181588929369, title=测试数据库4, contentSimilarity=0.5543713310795758, titleSimilarity=0.007959455923802206)]
    
    列表先按标题相似度降序，再按内容相似度降序    [
    Duplicates(id=1181588929369, title=测试数据库3, contentSimilarity=0.18791019480704962, titleSimilarity=0.8685129378947092), 
    Duplicates(id=1181588929369, title=测试数据库2, contentSimilarity=0.15739413084569576, titleSimilarity=0.6418851598988512),
    Duplicates(id=1181588929369, title=测试数据库0, contentSimilarity=0.38574966906668706, titleSimilarity=0.3832292382442515), 
    Duplicates(id=1181588929369, title=测试数据库1, contentSimilarity=0.9848937962794468, titleSimilarity=0.2854683355507478), 
    Duplicates(id=1181588929369, title=测试数据库4, contentSimilarity=0.7670096858650658, titleSimilarity=0.05295739543192157)]

列表先按标题相似度降序，再按内容相似度降序    \[  
Duplicates(id=1181588929369, title=测试数据库1, contentSimilarity=0.9392675375220804, titleSimilarity=0.704608271645791),   
Duplicates(id=1181588929369, title=测试数据库2, contentSimilarity=0.5006453224425479, titleSimilarity=0.4638740932635561),  
Duplicates(id=1181588929369, title=测试数据库0, contentSimilarity=0.8890708399644924, titleSimilarity=0.2732442258286829),   
Duplicates(id=1181588929369, title=测试数据库3, contentSimilarity=0.643501300281883, titleSimilarity=0.15838141373838144),   
Duplicates(id=1181588929369, title=测试数据库4, contentSimilarity=0.5543713310795758, titleSimilarity=0.007959455923802206)\]

列表先按标题相似度降序，再按内容相似度降序    \[  
Duplicates(id=1181588929369, title=测试数据库3, contentSimilarity=0.18791019480704962, titleSimilarity=0.8685129378947092),   
Duplicates(id=1181588929369, title=测试数据库2, contentSimilarity=0.15739413084569576, titleSimilarity=0.6418851598988512),  
Duplicates(id=1181588929369, title=测试数据库0, contentSimilarity=0.38574966906668706, titleSimilarity=0.3832292382442515),   
Duplicates(id=1181588929369, title=测试数据库1, contentSimilarity=0.9848937962794468, titleSimilarity=0.2854683355507478),   
Duplicates(id=1181588929369, title=测试数据库4, contentSimilarity=0.7670096858650658, titleSimilarity=0.05295739543192157)\]