Java使用httpClient进行文件上传

使用场景：服务端使用InputStream来接收文件

客户端使用post请求

fileNameWithSuffix表示带后缀的文件名，例如test.txt

public String postFile(String url, String token, String fileNameWithSuffix, InputStream inputStream) {

        HttpPost httpPost = new HttpPost(url);
    
    	// 设置请求头
        httpPost.setHeader("Authorization", token);

        MultipartEntityBuilder builder = MultipartEntityBuilder.create();
        builder.setMode(HttpMultipartMode.BROWSER_COMPATIBLE);
        builder.addBinaryBody("file", inputStream, ContentType.create("multipart/form-data"), fileNameWithSuffix);

        HttpEntity entity = builder.build();
        httpPost.setEntity(entity);
        CloseableHttpClient httpClient = HttpClients.createDefault();

        try {
            CloseableHttpResponse httpResponse = httpClient.execute(httpPost);

            if (null != httpResponse) {
                HttpEntity responseEntity = httpResponse.getEntity();
                String responseStr = EntityUtils.toString(responseEntity, "UTF-8");
                log.info("打印响应信息:{}", responseStr);
            }
        } catch (Exception e) {
            log.error(e.toString(),e);
        }

        return null;
    }