版权声明:java洪君 https://blog.csdn.net/qq_43532342/article/details/88947161
/**
* id -list 转string 在 两两之间加 ,
*
* @param list
* @param separator
* @return
*/
public String listToStringAppendComma(List list, String separator) {
StringBuilder sb = new StringBuilder();
for (int i = 0; i < list.size(); i++) {
sb.append(list.get(i));
if (i < list.size() - 1) {
sb.append(separator);
}
}
return sb.toString();
}