我想从URL https://d3c3cq33003psk.cloudfront.net/opentag-67008-473432.js中以字符串形式读取js文件
我尝试了几种方法(从url读取或下载然后读取),但是我一直都收到不可读的字符,例如“( _.s d :`. …
我尝试的方式:
1.从网址下载文件:
FileUtils.copyURLToFile(jsUrl, file);
2.从网址中读取:
StringBuilder sb = new StringBuilder();
try {
URL url = new URL(jsUrl);
// read text returned by server
BufferedReader in = new BufferedReader(new InputStreamReader(url.openStream(), "UTF-8"));
String line;
while ((line = in.readLine()) != null) {
sb.append(line).append("\n");
}
in.close();
} catch (Exception e) {
}
return sb.toString();
如果我从url(页面->另存为…)手动下载文件-可以使用记事本以常规UTF-8编码打开该文件.
有人可以帮我处理奇怪的文件吗?
解决方法:
它是GZIPped.使用GZIPInputStream.
更新
InputStream stream = url.openStream();
if ("gzip".equalsIgnoreCase(cnt.getHeaderField("Content-Encoding"))) {
stream = new GZIPInputStream(stream);
}
BufferedReader in = new BufferedReader(new InputStreamReader(stream, "UTF-8"));
更新2
使用URLConnection:
URLConnection cnt = url.openConnection();
InputStream stream = cnt.getInputStream();
if ("gzip".equalsIgnoreCase(cnt.getHeaderField("Content-Encoding"))) {
stream = new GZIPInputStream(stream);
}
BufferedReader read = new BufferedReader(new InputStreamReader(stream, "UTF-8"));