android断点续传设置setRequestProperty("Range", "bytes=" + start + "-" + threadInfo.getEnd());报错

Question

设置conn.setRequestProperty("Range", "bytes=" + start + "-" + threadInfo.getEnd());

报错java.lang.IllegalStateException: Cannot set request property after connection is made 这是为什么？

Answer 1

按照包错的字面信息理解是“连接后无法设置请求属性“，你的是不是在调用了connect()或者getOutputStream()方法之后才调用setRequestProperty？如果是，就把这个调用挪到前面去。若解惑，望采纳