使用 HttpPost MultiPartEntityBuilder 上传照片

Question

我正在尝试将拍摄的照片上传到服务器。这就是我所做的：

public JSONObject makePostFileRequest(String url, String photoFile) {
    try {
        // photoFile = /path/tofile/pic.jpg
        DefaultHttpClient httpClient = GlobalData.httpClient;
        HttpPost httpPost = new HttpPost(url);

        File file = new File(photoFile);
        FileBody fileBody = new FileBody(file); // here is line 221

        MultipartEntityBuilder multipartEntity = MultipartEntityBuilder.create();

        multipartEntity.setMode(HttpMultipartMode.BROWSER_COMPATIBLE);
        multipartEntity.addPart("PhotoMessage", fileBody);

        httpPost.setEntity(multipartEntity.build());

        HttpResponse httpResponse = httpClient.execute(httpPost);
        HttpEntity httpEntity = httpResponse.getEntity();
        is = httpEntity.getContent();

我收到此错误：

11-29 13:12:14.924：E/AndroidRuntime(15781)：由以下原因引起： java.lang.NoClassDefFoundError: org.apache.http.entity.ContentType 11-29 13:12:14.924: E/AndroidRuntime(15781): 在 org.apache.http.entity.mime.content.FileBody.(FileBody.java:89) 11-29 13:12:14.924: E/AndroidRuntime(15781): 在 com.petcial.petopen.custom.JSONParser.makePostFileRequest(JSONParser.java:221)

我做错了什么？

---

更新

InputStream inputStream;
inputStream = new FileInputStream(new File(photoFile));
byte[] data;
data = IOUtils.toByteArray(inputStream);

httpClient.getParams().setParameter(CoreProtocolPNames.USER_AGENT,
                        System.getProperty("http.agent"));
InputStreamBody inputStreamBody = new InputStreamBody(new ByteArrayInputStream(data), "Pic.jpg");

MultipartEntityBuilder multipartEntity = MultipartEntityBuilder.create();

multipartEntity.setMode(HttpMultipartMode.BROWSER_COMPATIBLE);
multipartEntity.addPart("PhotoMessage", inputStreamBody);

httpPost.setEntity(multipartEntity.build());

HttpResponse httpResponse = httpClient.execute(httpPost);
HttpEntity httpEntity = httpResponse.getEntity();
is = httpEntity.getContent();

这是错误：

11-29 14:00:33.364: E/AndroidRuntime(19478): 由: java.lang.NoClassDefFoundError：org.apache.http.util.Args 11-29 14:00:33.364：E/AndroidRuntime（19478）：在 org.apache.http.entity.mime.content.AbstractContentBody.(AbstractContentBody.java:48) 11-29 14:00:33.364: E/AndroidRuntime(19478): 在 org.apache.http.entity.mime.content.InputStreamBody.(InputStreamBody.java:69) 11-29 14:00:33.364: E/AndroidRuntime(19478): 在 org.apache.http.entity.mime.content.InputStreamBody.(InputStreamBody.java:62) 11-29 14:00:33.364: E/AndroidRuntime(19478): 在 com.petcial.petopen.custom.JSONParser.makePostFileRequest(JSONParser.java:233)

这些库解决了我的问题：

Answer 1

在 Order and Export 选项卡中检查该 jar 并运行。

Answer 2

有我的工作解决方案，使用 apache http 库发送带有帖子的图像（这里非常重要的是边界添加它在我的连接中没有它就无法工作）：

ByteArrayOutputStream baos = new ByteArrayOutputStream();
bitmap.compress(Bitmap.CompressFormat.PNG, 100, baos);
byte[] imageBytes = baos.toByteArray();

HttpClient httpclient = new DefaultHttpClient();
HttpPost httpPost = new HttpPost(StaticData.AMBAJE_SERVER_URL + StaticData.AMBAJE_ADD_AMBAJ_TO_GROUP);

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

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

ByteArrayBody bab = new ByteArrayBody(imageBytes, "pic.png");
StringBody sbOwner = new StringBody(StaticData.loggedUserId, ContentType.TEXT_PLAIN);
StringBody sbGroup = new StringBody("group", ContentType.TEXT_PLAIN);

HttpEntity entity = MultipartEntityBuilder.create()
                    .setMode(HttpMultipartMode.BROWSER_COMPATIBLE)
                    .setBoundary(boundary)
                    .addPart("group", sbGroup)
                    .addPart("owner", sbOwner)
                    .addPart("image", bab)
                    .build();

httpPost.setEntity(entity);

try {
       HttpResponse response = httpclient.execute(httpPost);
       ...then reading response

Answer 3

最好传递图像文件的路径。下面是我用来将图像上传到服务器的代码。

public class UploadProductDetails {


    public void uploadProductDetails(String filePath, String fileName)
    {

        InputStream inputStream;
        try
        {
            inputStream = new FileInputStream(new File(filePath));
            byte[] data;
            try
            {
                data = IOUtils.toByteArray(inputStream);

                HttpClient httpClient = new DefaultHttpClient();

                httpClient.getParams().setParameter(CoreProtocolPNames.USER_AGENT,
                        System.getProperty("http.agent"));



                HttpPost httpPost = new HttpPost("http://ipaddress");


                InputStreamBody inputStreamBody = new InputStreamBody(new ByteArrayInputStream(data), "abc.png");
                MultipartEntity multipartEntity = new MultipartEntity();
                multipartEntity.addPart("file", inputStreamBody);


                httpPost.setEntity(multipartEntity);
                HttpResponse httpResponse = httpClient.execute(httpPost);

                // Handle response back from script.
                if(httpResponse != null) {
                    //Toast.makeText(getBaseContext(),  "Upload Completed. ", 2000).show();

                } else { // Error, no response.
                    //Toast.makeText(getBaseContext(),  "Server Error. ", 2000).show();
                }
            } catch (IOException e) {
                e.printStackTrace();
            }
        } catch (FileNotFoundException e1) {
            e1.printStackTrace();
        }
    }

}

Answer 4

请注意，使用此代码：new InputStreamBody(new ByteArrayInputStream(yourByteArray)) 可能会导致一些问题，因为它在调用 getContentLength() 时会返回 -1。

改为使用：new ByteArrayBody(yourByteArray)