一、数组转为List
调用Arrays类的静态方法asList
1 static void convertArray2List() {
2 String[] strs =
new String[]{"hehe","haha","heihei"
};
3 List<String> list =
Arrays.asList(strs);
4
5 System.out.println(JSON.toJSONString(list));
6 }结果 ： ["hehe","haha","heihei"]
二、List转为数组（以ArrayList为例）
①、Object[] toArray();
②、T[] toArray(T[] a);
1 static void convertList2Array() {
2 List<String> list =
new ArrayList<String>
();
3 list.add("hehe"
);
4 list.add("haha"
);
5 list.add("heihei"
);
6 String[] strs =
list.toArray(new String[]{});
7
8 System.out.println(JSON.toJSONString(strs));
9 }结果 ：["hehe","haha","heihei"]
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