[LayaNative 2.0][LayaNative 2.0]请问android单机包怎么热更新的

请问laya jar 包中 index.js 中  updateDcc里面

var curassets = cache.getResourceID('netassetsid');

var assetsidStr = (yield asyncs.downloadSync(urlpath + 'update/assetsid.txt?rand=' + Math.random() * Date.now(), false, null));

console.log("assetsid old:" + curassets + "  new:" + assetsidStr);

第一句是从哪里获取netssetsid资源。这里我运行之后
Downloaded http://127.0.0.1/laya/update/a ... 0.0.1 s=0 l=0
/home/layabox/LayaBox/lvfulong/conch6git/Conch/build/conch/proj.android_studio/jni/../../../../source/conch/JSWrapper/LayaWrap/JSConsole.cpp:97  onerror UnknownError
apploader.js:313 onerror UnknownError
/home/layabox/LayaBox/lvfulong/conch6git/Conch/build/conch/proj.android_studio/jni/../../../../source/conch/JSWrapper/LayaWrap/JSConsole.cpp:97  assetsid old:  new:null
apploader.js:313 assetsid old:  new:null
 
控制台输出如下， old ，new 两个文件都未找到， 但是我直接点击浏览器是可以访问  127下  assetsid.txt的