java中list和string相互转换

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	public static void main(String[] args) {
		List<String> list = new ArrayList<String>();
		list.add("测试1");
		list.add("测试2");
		list.add("测试3");
		//list转string
		String ss = String.join(",", list);
		System.out.println(ss);

		//String转list
		String str[] = ss.split(",");
		List<String> slit = Arrays.asList(str);
		for (int i = 0; i < slit.size(); i++) {
			System.out.println(slit.get(i));
		}

	}