java中逗號分隔的字符串和List相互轉換
1、將逗號分隔的字符串轉換為List
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String str =
"a,b,c"
;
List<String> result = Arrays.asList(str.split(
","
));
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2、將List轉換為逗號分隔的字符串
（1） 利用Guava的Joiner
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List<String> list =
new
ArrayList<String>();
list.add(
"a"
);
list.add(
"b"
);
list.add(
"c"
);
String str = Joiner.on(
","
).join(list);
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（2）利用Apache Commons的StringUtils
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List<String> list =
new
ArrayList<String>();
list.add(
"a"
);
list.add(
"b"
);
list.add(
"c"
);
String str = StringUtils.join(list.toArray(),
","
);
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