map差异对比工具类

/*Map差异对比工具类/
public class MapThenUtils {

public static List<String> getKeys(Map<String,Object> oldMap,Map<String,Object> newMap){
    Set<String> oldSet = oldMap.keySet();
    Set<String> newSet = newMap.keySet();
    Iterator<String> oldIterator = oldSet.iterator();
    Iterator<String> newIterator = newSet.iterator();
    List<String> oldKeys = new ArrayList<>();
    List<String> newKeys = new ArrayList<>();
    while(oldIterator.hasNext()){
        oldKeys.add(oldIterator.next());
    }
    while(newIterator.hasNext()){
        newKeys.add(newIterator.next());
    }
    return Stream.of(oldKeys,newKeys).flatMap(Collection::stream).distinct().collect(Collectors.toList());
}


public static List<Map<String,Object>> compareInstance(Map<String,Object> oldMap,Map<String,Object> newMap){
    List<Map<String,Object>> comparbleResults = new ArrayList<>();
    List<String> keys = getKeys(oldMap, newMap);
    for (String key : keys) {
        Map<String,Object> comparbleResult = new HashMap<>();
        Object oldValue = oldMap.get(key);
        Object newValue = newMap.get(key);
        if(StringUtils.isEmpty(String.valueOf(oldValue))&& StringUtils.isEmpty(String.valueOf(newValue))){
            continue;
        }
        if(StringUtils.isEmpty(String.valueOf(oldValue)) || StringUtils.isEmpty(String.valueOf(newValue)) || !String.valueOf(oldValue).equals(String.valueOf(newValue))){
            comparbleResult.put("name",key);
            comparbleResult.put("oldValue",oldValue);
            comparbleResult.put("newValue",newValue);
            comparbleResults.add(comparbleResult);
        }
    }
    return comparbleResults;
}

}

标签：map,String,Map,差异,valueOf,List,newValue,oldValue,对比
来源： https://blog.csdn.net/a15906449458/article/details/123175594