// 作为提交值读取
else {
StringBuilder sb = new StringBuilder();
do {
info.current = br.load();
mm = br.mark(itemEndlBytes);
assertStreamNotEnd(mm);
sb.append(br.dumpAsString(charset));
} while (mm == MarkMode.NOT_FOUND);
params.addv(meta.getName(), sb.toString());
if (log.isDebugEnabled())