java Android HTTPUrlConnection响应返回垃圾

Question

下面是我的inputstream头代码

mResponseCode = connection.getResponseCode();

mError = mResponseCode != 200 && mResponseCode != 201 && mResponseCode != 202;

if (mError) {
    inputStream = connection.getErrorStream();
} else {
    inputStream = connection.getInputStream();
}
inputStreamReader = new InputStreamReader(inputStream);
bufferedReader = new BufferedReader(inputStreamReader);

String inputLine;
final StringBuilder builder = new StringBuilder();

while ((inputLine = bufferedReader.readLine()) != null)
    builder.append(inputLine);

resultStr = builder.toString();

但是字符串返回的垃圾值如下“���������������}"

响应头包含Content-Type: application/json; charset=UTF-8，因此我尝试添加

inputStreamReader = new InputStreamReader(inputStream, Charset.forName("UTF-8"));

但是没有帮助

它在邮递员身上工作得很好，所以我知道这项服务没有什么问题

有人能帮忙吗

Answer 1

一些服务试图利用标题参数压缩它们生成的数据，如：

Content-Encoding: SomeKindOfEncoding

要禁用此功能，请尝试设置接受编码：

connection.setRequestProperty("Accept-Encoding", "identity");

如果您想在手机上保存一些传输数据，请使用以下命令：

connection.setRequestProperty("Accept-Encoding", "gzip"); //optional forcing gzip
//...
inputStream = new GZIPInputStream(connection.getInputStream());
//rest of the code