javase Array与List转换

List<Object> list =Arrays.asList(new Object[]{"1",2,3});

List<String> list = Arrays.AsList(str);
ArrayList<String> arrayList = new ArrayList<String>(list);

否则报错java.lang.ClassCastException: java.util.Arrays$ArrayList cannot be cast to java.util.ArrayList

不定参数时最好传入数组，不要传入list否则会发生错误