TreeMap在不知道字符串的情况下查找字符串类别的值？

TreeMap<String, String> categoryMap = new TreeMap<>();
categoryMap.put("fruit", "apple");
categoryMap.put("animal", "dog");
categoryMap.put("color", "red");

String targetString = "apple";
String category = "";
for (String key : categoryMap.keySet()) {
    if (targetString.contains(key)) {
        category = key;
        break;
    }
}
String value = categoryMap.get(category);
System.out.println("Category: " + category);
System.out.println("Value: " + value);

Category: fruit
Value: apple