Guava 的 API 对字符串去空格，去空值，list去空值null 布满荆棘的人生 2022-12-10 01:20 104阅读 0赞 String a = ",abcd,,efg,l"; System.out.println(Splitter.on(",").trimResults().omitEmptyStrings().splitToList(a)); // 依次 join 多个字符串，Joiner 是 Guava 提供的 API Joiner joiner = Joiner.on(",").skipNulls(); String result = joiner.join("hello",null,"china"); System.out.println( "依次 join 多个字符串:{}"+result ); List<String> list = Lists.newArrayList(new String[]{"hello","china",null}); System.out.println("自动删除 list 中空值:{}" + joiner.join(list));
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