方法一:
String array=["a","b","c"];
String str= StringUtils.join(array,",");
方法二:
使用循环
String[] array=approveAuthorityDto.getPlantName().split(",");
for (int i = 0; i <array.length ; i++) {
array[i]=plantCodeMapper.getPlantCodeByPlantName(array[i]);
}
String plantCode= StringUtils.join(array,",");
System.out.println("str:"+plantCode);
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