android – 使用OkHttp Spring上传多部分文件

概述我最近切换到了OkHttp.切换后,下面的代码执行上传. RequestBody requestBody = new MultipartBuilder() .type(MultipartBuilder.FORM) .addPart( Hea 我最近切换到了Okhttp.切换后,下面的代码执行上传.

Requestbody requestbody = new MultipartBuilder()                        .type(MultipartBuilder.FORM)                        .addPart(                                headers.of("Content-disposition","form-data; name=\"qqfile\""),Requestbody.create(                                        MediaType.parse(filename),new file(filename)))                        .build();

如果比较图像,第二个图像的multipartfiles大小= 0.它应该是size = 1.如何使用Okhttp正确填充multiparthttpRequest以使服务器接受成功上传？

控制器代码

import org.apache.commons.fileupload.servlet.ServletfileUpload;import org.springframework.http.MediaType;import org.springframework.web.multipart.multipartfile;import org.springframework.web.multipart.MultiparthttpServletRequest;import org.springframework.web.util.WebUtils;@RequestMapPing (        method = RequestMethod.POST,value = "/upload",produces = MediaType.APPliCATION_JsON_VALUE + ";charset=UTF-8")public String upload(        httpServletRequest request,httpServletResponse response) throws IOException {    boolean isMultipart = ServletfileUpload.isMultipartContent(request);    if (isMultipart) {        MultiparthttpServletRequest multiparthttpRequest =         WebUtils.getNativeRequest(request,MultiparthttpServletRequest.class);        final List<multipartfile> files = multiparthttpRequest.getfiles("qqfile");        if (files.isEmpty()) {            LOG.error("qqfile name missing in request or no file uploaded");            return some error code here        }        multipartfile multipartfile = files.iterator().next();        //process file code below    }    return failure;}

解决方法 您可以更轻松地获得multipartfile：

@RequestMapPing(value = "/upload",method = RequestMethod.POST)public String upload(@RequestParam("qqfile") multipartfile file) throws IOException {    if (!file.isEmpty()) {        // ...    }    return "failure";}

然后,用Okhttp：

Requestbody body = new MultipartBuilder()    .addFormDataPart("qqfile",filename,Requestbody.create(MediaType.parse("media/type"),new file(filename)))    .type(MultipartBuilder.FORM)    .build();Request request = new Request.Builder()    .url("/path/to/your/upload")    .post(body)    .build();OkhttpClIEnt clIEnt = new OkhttpClIEnt();Response response = clIEnt.newCall(request).execute();

这对我很好.

注意MediaType.parse(filename),你必须传递一个有效的类型,如text / plain,application / Json,application / xml …

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