将集合中对象按特定符号分隔成字符串

Posted 2020-10-23 samcheng

List<String> list =new ArrayList();

list.add(“ab”);

list.add("cd");

String str = Joiner.on(",").join(list);

最终结果：str=ab,cd

 

添加gradle依赖：compile group:‘com.google.guava‘,name:"guava",version:20.0