InputStream is = Helper.class.getResourceAsStream(config);
if (is == null) {
throw new FileNotFoundException(config + "文件不存在!");
}
JsonReader jr = new JsonReader(new InputStreamReader(is));
Biz biz = GSON.fromJson(jr, Biz.class);
// List<TableTree> tableTrees = biz.getTableTrees();
// 表关系直接写到rel里,不手动计算
// calcTableRel(tableTrees, 0);
return biz;
}