HttpClient上传文件中文乱码（MultipartFile fileName中文乱码乱码）

最新推荐文章于 2025-05-22 09:48:19 发布

nuc2015

最新推荐文章于 2025-05-22 09:48:19 发布

阅读量1.7k

点赞数 2

CC 4.0 BY-SA版权

分类专栏： Java 文章标签： java

本文链接：https://blog.youkuaiyun.com/nuc2015/article/details/108241876

Java 专栏收录该内容

9 篇文章

订阅专栏

本文介绍了一种解决HTTP文件上传时中文文件名乱码的问题，通过设置MultipartEntityBuilder的编码为UTF-8，并启用浏览器兼容模式，确保后台接口能正确解析中文文件名。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

需要设置http为兼容模式，否则会使用mime默认的编码（US-ASCII）

设置方式：

MultipartEntityBuilder builder = MultipartEntityBuilder.create();
builder.setCharset(Charset.forName("UTF-8"));
builder.setMode(HttpMultipartMode.BROWSER_COMPATIBLE);//设置浏览器兼容模式，否则后台接口接收到的文件名中文乱码?????.xlsx

整体代码：Httpclient上传文件流InputStream，使用浏览器兼容模式

private Object uploadRequest(HttpServletRequest servletRequest, String httpUrl, String para, InputStream inputStream, String fileName) {
		CloseableHttpClient httpClient = null;
		CloseableHttpResponse httpResponse = null;
		try {
			HttpClientBuilder httpClientBuilder = HttpClientBuilder.create();
			RequestConfig config = RequestConfig.custom().setConnectTimeout(TIMEOUT * 1000).build();
			httpClientBuilder.setDefaultRequestConfig(config);
			httpClient = httpClientBuilder.build();
			MultipartEntityBuilder builder = MultipartEntityBuilder.create();
			builder.setCharset(Charset.forName("UTF-8"));
			builder.setMode(HttpMultipartMode.BROWSER_COMPATIBLE);//设置浏览器兼容模式，否则后台接口接收到的文件名中文乱码?????.xlsx
            builder.addBinaryBody(para, inputStream, ContentType.MULTIPART_FORM_DATA, fileName);
            HttpEntity fileEntity = builder.build();
            HttpPost httpPost = new HttpPost(httpUrl);
            transferRequestHeaders(httpPost, servletRequest);
			httpPost.setEntity(fileEntity);
            httpResponse = httpClient.execute(httpPost);
            HttpEntity entity = httpResponse.getEntity();
            String responseBody = null;
			if (entity != null) {
				responseBody = EntityUtils.toString(entity, Charset.forName("UTF-8"));
				//关闭流
				EntityUtils.consumeQuietly(entity);
			}
			if(responseBody.startsWith("{")) {
				return JSONObject.parseObject(responseBody);
			}else if(responseBody.startsWith("[")) {
				return JSONArray.parseArray(responseBody);
			}else {
				return responseBody;
			}
		} catch (Exception e) {
			e.printStackTrace();
			return null;
		} finally {
			try {
				httpResponse.close();
				httpClient.close();
			} catch (IOException e) {
				e.printStackTrace();
			}
		}
	}