Question

在我的 android 项目中，我将zip文件上传到服务器 HTTP post request 。在这种情况下，我使用 httpcore 和 httpmime 库。我正在使用 AsyncTask 进行上传。 AsyncTask的doInBackground方法如下，

@Override
        protected String doInBackground(String... params) {

            try {
                String serverLoaction = params[0];
                String filePath = params[1];

                HttpClient httpClient = new DefaultHttpClient();
                HttpContext localContext = new BasicHttpContext();
                HttpPost httpPost = new HttpPost(serverLoaction);

                MultipartEntityBuilder builder = MultipartEntityBuilder.create();
                builder.setMode(HttpMultipartMode.BROWSER_COMPATIBLE);

                FileBody fileBody = new FileBody(new File(filePath));
                StringBody stringBody = new StringBody("data", ContentType.MULTIPART_FORM_DATA);

                builder.addPart("file", fileBody);
                builder.addPart("name", stringBody);

                httpPost.setEntity(builder.build());

                HttpResponse response = httpClient.execute(httpPost, localContext);

                BufferedReader reader = new BufferedReader(
                            new InputStreamReader(
                                    response.getEntity().getContent(), "UTF-8"));

                String sResponse = reader.readLine();
                return sResponse;

            } catch (Exception e) {
                if (dialog.isShowing())
                    dialog.dismiss();
                Toast.makeText(getApplicationContext(), "Error in downloading image", Toast.LENGTH_LONG).show();
                Log.e(e.getClass().getName(), e.getMessage(), e);
                return null;
            }

代码编译，运行。但当上传任务继续不上传该文件时，日志会显示按摩。

05-03 14:29:00.223 27471-27687/com.x.l D/dalvikvm: DexOpt: couldn't find static field Lorg/apache/http/message/BasicHeaderValueParser;.INSTANCE
05-03 14:29:00.223 27471-27687/com.x.l W/dalvikvm: VFY: unable to resolve static field 44070 (INSTANCE) in Lorg/apache/http/message/BasicHeaderValueParser;
05-03 14:29:00.223 27471-27687/com.x.l D/dalvikvm: VFY: replacing opcode 0x62 at 0x001b
05-03 14:29:00.233 27471-27687/com.x.l D/dalvikvm: DexOpt: couldn't find static field Lorg/apache/http/message/BasicHeaderValueFormatter;.INSTANCE
05-03 14:29:00.233 27471-27687/com.x.l W/dalvikvm: VFY: unable to resolve static field 44065 (INSTANCE) in Lorg/apache/http/message/BasicHeaderValueFormatter;
05-03 14:29:00.233 27471-27687/com.x.l D/dalvikvm: VFY: replacing opcode 0x62 at 0x0015

但它没有提供任何错误。所以我花了很多时间试图弄清楚它并没有成功。

我的build.gradle文件中的依赖项如下所示，

dependencies {
    compile project(':volley')
    compile 'com.android.support:support-v4:22.2.1'
    compile 'com.android.support:appcompat-v7:21.0.3'
    compile 'com.android.support:multidex:'
    compile 'org.apache.httpcomponents:httpcore:4.4.4'
    compile'org.apache.httpcomponents:httpmime:4.3.6'

}

Editted ....... 根据stac答案，我编辑了我的代码并添加了以下两部分

String boundary = "-------------" + System.currentTimeMillis();

                httpPost.setHeader("Content-type", "multipart/form-data; boundary=" + boundary);

和

builder.setBoundary(boundary);

所以现在我的最终代码是这样的。

@Override
    protected String doInBackground(String... params) {

        try {

            String serverLoaction = params[0];
            String filePath = params[1];

            HttpClient httpClient = new DefaultHttpClient();
            HttpContext localContext = new BasicHttpContext();
            HttpPost httpPost = new HttpPost(serverLoaction);

            String boundary = "-------------" + System.currentTimeMillis();

            httpPost.setHeader("Content-type", "multipart/form-data; boundary=" + boundary);

            MultipartEntityBuilder builder = MultipartEntityBuilder.create();
            builder.setMode(HttpMultipartMode.BROWSER_COMPATIBLE);
            builder.setBoundary(boundary);

            FileBody fileBody = new FileBody(new File(filePath));
            StringBody stringBody = new StringBody("data", ContentType.MULTIPART_FORM_DATA);

            builder.addPart("file", fileBody);
            builder.addPart("name", stringBody);

            httpPost.setEntity(builder.build());

            HttpResponse response = httpClient.execute(httpPost, localContext);

            BufferedReader reader = new BufferedReader(
                        new InputStreamReader(
                                response.getEntity().getContent(), "UTF-8"));

            String sResponse = reader.readLine();
            return sResponse;

        } catch (Exception e) {
            if (dialog.isShowing())
                dialog.dismiss();
            Toast.makeText(getApplicationContext(), "Error in downloading image", Toast.LENGTH_LONG).show();
            Log.e(e.getClass().getName(), e.getMessage(), e);
            return null;
        }
    }

所以现在它没有显示我上面提到的错误。但仍然没有上传文件。我的代码有什么问题。有人建议我可以解决这个问题。谢谢和问候！

Answer 1

我使用凌空库上传文件。
希望这段代码可以帮到你。这是我用来请求服务器的类。

public class OnPostNewtRequest扩展JsonRequest { MultipartEntityBuilder entity = MultipartEntityBuilder.create（）; HttpEntity httpentity; 私人最终的Response.Listener mListener; private file mFilePart = null; private file mFileVideos = null; private final Map mStringPart;

public OnPostNewtRequest(String url, Response.ErrorListener errorListener,
                         Response.Listener<JSONObject> listener, File file,
                         File fileVideos, Map<String, String> mStringPart) {
    super(Method.POST, url, null, listener, errorListener);
    mListener = listener;
    mFilePart = file;
    mFileVideos = fileVideos;
    this.mStringPart = mStringPart;
    entity.setMode(HttpMultipartMode.BROWSER_COMPATIBLE);
    buildMultipartEntity();
}

public void addStringBody(String param, String value) {
    mStringPart.put(param, value);
}

private void buildMultipartEntity() {
    if (mFileVideos != null)
        entity.addBinaryBody(Constant.KEY_FILE_VIDEO, mFileVideos, ContentType.create("video/mp4"), mFileVideos.getName());
    if (mFilePart != null)
        entity.addBinaryBody(Constant.KEY_FILE, mFilePart, ContentType.create("image/jpeg"), mFilePart.getName());
    for (Map.Entry<String, String> entry : mStringPart.entrySet()) {
        try {
            entity.addPart(entry.getKey(), new StringBody(entry.getValue(), Charset.defaultCharset()));
        } catch (UnsupportedEncodingException e) {
            e.printStackTrace();
        }
    }
}

@Override
public String getBodyContentType() {
    return httpentity.getContentType().getValue();
}

@Override
public byte[] getBody() {
    ByteArrayOutputStream bos = new ByteArrayOutputStream();
    try {
        httpentity = entity.build();
        httpentity.writeTo(bos);
    } catch (IOException e) {
        VolleyLog.e("IOException writing to ByteArrayOutputStream");
    }
    return bos.toByteArray();
}

@Override
protected Response<JSONObject> parseNetworkResponse(NetworkResponse response) {
    try {
        String jsonString =
                new String(response.data, HttpHeaderParser.parseCharset(response.headers));
        return Response.success(new JSONObject(jsonString),
                HttpHeaderParser.parseCacheHeaders(response));
    } catch (UnsupportedEncodingException e) {
        return Response.error(new ParseError(e));
    } catch (JSONException je) {
        return Response.error(new ParseError(je));
    }
}

@Override
protected void deliverResponse(JSONObject response) {
    mListener.onResponse(response);
}

}

以及如何使用此请求 1。首先你使用

Map params = new HashMap（）; 添加＆＃34;键＆＃34;和params的值示例：params.put（Constant.KEY_WORD，mTag）;.
第2步。

OnPostNewtRequest multipartRequest = new OnPostNewtRequest（Constant.URL_UP_POST，new Response.ErrorListener（）{ @覆盖 public void onErrorResponse（VolleyError error）{ if（mAction！= null）{ mAction.onError（误差）; } 解雇（）; error.printStackTrace（）; } 新的Response.Listener（）{ @覆盖 public void onResponse（JSONObject response）{

        }
    }, linkFileImage, fileVideos, params);

    YourApplication.getInstance().addToRequestQueue(multipartRequest);

希望这能帮到你。

将文件上传到服务器失败并显示日志 - VFY：无法解析静态字段44070

1 个答案: