首个逗号去除，string转数组，数组转list。list转String

1.第一个字段如果为逗号则进行去除

2.将String先转为数组

3.将数组转为list目的是去重

3.将list转为string串用来页面展示

public static void main(String[] args) {String kindcode = ",操作人员责任保险（2017版）2,操作人员责任保险（2017版）1,操作人员责任保险（2017版）,操作人员责任保险（2017版）";if (kindcode.startsWith(",")){kindcode = kindcode.substring(1, kindcode.length());}String replace = kindcode.replace(',', ' ');String[] split = kindcode.split(",");List<String> list = new ArrayList<String>();for (int i=0; i<split.length; i++) {if(!list.contains(split[i])) {list.add(split[i]);}}String join = String.join(",", list);System.out.println(join);}