StringBuffer buf = new StringBuffer();
for (FileType fileType : fileTypes) {
buf.append(fileType.getId());
buf.append(",");
}
buf.delete(buf.length()-1, buf.length());//删除最后一个,号
StringBuffer buf = new StringBuffer();
for (FileType fileType : fileTypes) {
buf.append(fileType.getId());
buf.append(",");
}
buf.delete(buf.length()-1, buf.length());//删除最后一个,号