键相同，比较两个map中的值是否相同

 

获取、排序、比较两个Map中相同key对应value值

 

 

/**
*
* @param hashMap 原数据
* @param hashMap2 需要比较的数据
* @return
*/
private static boolean mapCompar(HashMap<Object,Object> hashMap,HashMap<Object,Object> hashMap2) {
boolean isChange = false;
for (Entry<Object, Object> entry1 : hashMap.entrySet()) {
String m1value = entry1.getValue() == null ? "" : (String) entry1.getValue();
String m2value = hashMap2.get(entry1.getKey()) == null ? "" : (String) hashMap2.get(entry1.getKey());
if (!m1value.equals(m2value)) {
isChange = true;
}
System.out.println(isChange);
}
return isChange;
}
public static void main(String[] args) {
HashMap<Object, Object> hashMap = new HashMap<>();
hashMap.put("key1", "key1");
hashMap.put("key2", "key2");
hashMap.put("key3", "key3");
HashMap<Object, Object> hashMap2 = new HashMap<>();
hashMap2.put("key1", "key1");
hashMap2.put("key2", "key2");
mapCompar(hashMap,hashMap2);
}
}