我能想到的每个库都会返回一个流。您可以使用 IOUtils.toString（） noreferrer> Apache Commons IO 在一次方法调用中将 InputStream 读入 String 。例如：

Every library I can think of returns a stream. You could use IOUtils.toString() from Apache Commons IO to read an InputStream into a String in one method call. E.g.:

URL url = new URL("http://www.example.com/");
URLConnection con = url.openConnection();
InputStream in = con.getInputStream();
String encoding = con.getContentEncoding();
encoding = encoding == null ? "UTF-8" : encoding;
String body = IOUtils.toString(in, encoding);
System.out.println(body);

更新：我更改了上面的示例，使用了来自的内容编码响应如果可用。否则它将默认为UTF-8作为***猜测，而不是使用本地系统默认值。

Update: I changed the example above to use the content encoding from the response if available. Otherwise it'll default to UTF-8 as a best guess, instead of using the local system default.