list和以逗号分割的String相互转换(guava)

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谷歌guava之list与String转换

import com.alibaba.fastjson.JSON;
import com.google.common.base.Joiner;
import com.google.common.collect.Lists;
import com.google.common.base.Splitter;

        List<String> list = Lists.newArrayList("a","b","c"," ");
        String s = Joiner.on(",").join(list); // 以逗号分割
        System.out.println(s); // a,b,c, 
        Splitter split = Splitter.on(',').trimResults().omitEmptyStrings(); // 去前后空格&&去空string
        List<String> list1 = split.splitToList(s);
        System.out.println(JSON.toJSONString(list1)); // ["a","b","c"]