来自未知大小的inputStream的内容的HTTP PUT请求，无法在HttpUrlConnection中设置ChunkedStreamingMode

import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpPut;
import org.apache.http.entity.InputStreamEntity;
import org.apache.http.impl.client.HttpClientBuilder;

import java.io.InputStream;

public class HttpClientExample {
    public static void main(String[] args) {
        String url = "http://example.com/upload"; // 替换为实际的上传URL

        try {
            // 创建HttpClient实例
            HttpClient httpClient = HttpClientBuilder.create().build();

            // 创建HttpPut请求
            HttpPut httpPut = new HttpPut(url);

            // 获取输入流，假设inputStream为来自未知大小的输入流
            InputStream inputStream = getInputStream();

            // 创建InputStreamEntity，并设置内容
            InputStreamEntity entity = new InputStreamEntity(inputStream);

            // 设置请求实体
            httpPut.setEntity(entity);

            // 发送请求并获取响应
            HttpResponse response = httpClient.execute(httpPut);

            // 处理响应
            // ...

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

    private static InputStream getInputStream() {
        // 获取输入流的逻辑
        // ...
        return null;
    }
}