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Android 支持断点续传功能的下载demo源码

于 2022-10-23 发布文件大小:588.41 kB

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Android 支持断点续传功能的下载demo源码，并结合了数据库来实现，在download.db数据库下创建一个download_info表存储下载信息，利用Http协议进行多线程下载，从头开始的全文下载；1,从某字节开始的下载（bytes=27000-）；2,从某字节开始到某字节结束的下载（bytes=27000-39000），针对 bytes=27000-39000 的请求，从27000开始写数据，客户端请求的是270000之后的字节（包括bytes下标索引为270000的字节），如果设设置了Content-Length，则客户端会自动进行多线程下载。如果不希望支持多线程，则不要设置这个参数。　　// Content-Length: [文件的总大小] - [客户端请求的下载的文件块的开始字节] 　　断点开始　　// 响应的格式是: 　　// Content-Range: bytes [文件块的开始字节]-[文件的总大小 - 1]/[文件的总大小]

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