java - HttpClient/BufferedReader 返回乱码

Question

我有一个方法可以从 url 获取文件的源文本并将其作为字符串返回。但它返回的是乱码垃圾而不是任何有用的东西。

我在项目的一个地方使用相同的代码，它工作得很好，但在其他地方使用它会导致一团糟

代码:

private static String getWebSource(String Url) throws IOException {
    HttpClient httpclient = new DefaultHttpClient(); // Create HTTP Client
    HttpGet httpget = new HttpGet(Url); // Set the action you want to do
    HttpResponse response = httpclient.execute(httpget); // Executeit
    HttpEntity entity = response.getEntity();
    InputStream is = entity.getContent(); // Create an InputStream with the response
    BufferedReader reader = new BufferedReader(new InputStreamReader(is, "iso-8859-1"), 8);
    StringBuilder sb = new StringBuilder();
    String line = null;
    while ((line = reader.readLine()) != null) // Read line by line
        sb.append(line + "\n");

    String resString = sb.toString(); // Result is here

    return resString;
}

它返回什么:

������������mRËnÛ0<Û@þaÃCÑ¡hÅ=4¤CíM¦A£Àí×TIúÕ¯/õpìCt ÃÝá.ËÅyþûé*_+xzùüp?B[Nç-òüú8@n¹vÒK£¹bìî��©¼ofív»h7-Yþí[®¸-BêÏ*#áÉÆI'¸¯vé4ñÍÍM_MÚ¤âºL j¯Q6%¬6R  ÷®@A½ 4»_%ä"Ãð%5z­"Å¿¹MÉÜhÚÓüÐ ¢ß¥ÄãÞ³ÖÁ-·}ú¡;öNóS"°0{cÏXÐZcͳôC½éo®9W

Answer 1

看起来响应已被压缩 (gzip)。 尝试解压它:

...

InputStream is = response.getEntity().getContent();
Header contentEncoding = response.getFirstHeader("Content-Encoding");
if ((contentEncoding != null) && contentEncoding.getValue().equalsIgnoreCase("gzip")) { 
    InputStream gzipIs = new GZIPInputStream(is);
    ...