如何在 Java 中使用 HttpClient 检索二进制文件？

Question

目前，我可以检索文本页面，如下所示

    HttpClient client = new DefaultHttpClient();
    HttpGet get = new HttpGet(
            "http://google.com");

    try {


        HttpResponse response = client.execute(get);
        BufferedReader rd = new BufferedReader(new InputStreamReader(
                response.getEntity().getContent()));

        String line = "";
        while ((line = rd.readLine()) != null) {
            System.out.println(line);


        }
    } catch (IOException e) {
        e.printStackTrace();
    }

假设 get 的目标是二进制文件。我如何将其正确保存到磁盘？

Answer 1

只是不要通过 Reader - 从 InputStream 读取数据并写入 OutputStream。

// Using Guava (guava-libraries.googlecode.com)
InputStream data = response.getEntity().getContent();
try {
    OutputStream output = new FileOutputStream(filename);
    try {
        ByteStreams.copy(data, output);
    } finally {
        Closeables.closeQuietly(output);
    }
} finally {
}