自己写应用市场,用多线程下载apk文件,可下载速度却很慢(不是网速的问题),用市面上的应用市场下文件却很快,是为什么?
accessFile = new RandomAccessFile(file, "rwd");
accessFile.seek(startPos + completeSize);// 设置从哪个位置写入数据
inputStream = connection.getInputStream();
byte[] buffer = new byte[4096];
int length = -1;
while ((length = inputStream.read(buffer)) != -1) {
// 写入数据
accessFile.write(buffer, 0, length);
// 累加已经下载的长度
completeSize = completeSize + length;
}
这里面的byte[4096]设置成byte[4096*1000],可每次最多还是只读了8192是为什么???
ringa_lee2017-04-18 09:09:53
You may have a problem with multi-threading. You can log and see the amount of data downloaded by each thread