关于In的使用

public List<Object> getDocByTypeId(List<String> listTypeId) {
IDBOperator idb = new DBOperatorImpl();
Object[] params = new Object[listTypeId.size()];
String sAllTypeId = "";
int i = 0;
for (String typeId : listTypeId) {
sAllTypeId += ",?";
params[i] = Integer.parseInt(typeId);
i++;
}
sAllTypeId = sAllTypeId.replaceFirst(",", "");
String sql = "select * from document_manage t where t.file_type in ("
+ sAllTypeId + ")";
ResultSet rs = idb.executeQuery(sql, params);
List<Object> list = ObjectUtils.ResultSetToList(new DocForm(), rs);
try {
if (rs != null)
rs.close();
} catch (Exception e) {
e.printStackTrace();
} finally {
idb.close();
}
return list;
}