关闭HttpURLConnection而不关闭InputStream？

你不希望让连接处于开放状态。这将带来资源泄漏的风险。我建议创建一个自定义的 InputStream 实现，当流被关闭时自动关闭连接。

public class HttpURLConnectionInputStream extends InputStream {
    private HttpURLConnection connection;
    private InputStream stream;
    public HttpURLConnectionInputStream(HttpURLConnection connection) throws IOException {
        this.connection = connection;
        this.stream = connection.getInputStream();
    @Override
    public int read() throws IOException {
        return stream.read();
    @Override
    public void close() throws IOException {
        connection.disconnect();
然后只需将你的HttpURLConnection 传递给构造函数并返回自定义输入流。
public InputStream get() throws IOException {
    final URL url = new URL("http://example.com");
    HttpURLConnection httpUrlConnection = (HttpURLConnection) url.openConnection();