使用multipartentity和JSON android中上传图片到服务器 [英] Upload image to the server using multipartentity and json in android

问题描述

我看了很多帖子来实现任务喜欢使用Android中multipartentity和josn参数一起上传图片，但我的问题是，当我试图上传图片和参数，而不将字符串转换为 JSONObject的然后图像上传没有错误，但在像logcat中当我试图添加响应字符串到JSONObject的再发生错误）：

I have read lots of post to achieve the task like to upload image along with parameters using multipartentity and josn in android, but my problem is when i was trying to upload image and parameter without converting string to JSONobject then image has uploaded without an error but when i was trying to add response string to jsonobject then error occur in the logcat like ):

error: Value`<form of type java.lang.String cannot be converted to JSONObject.

中的任何一个，请帮助解决这个问题？我想一个图像和 JsonObjec T发送到PHP服务器 MultipartEntity 。我工作的一个应用程序，允许用户通过在H ttpPost 方法上传图片。我使用 MultipartEntity ，所以我增加了库Apache的mime4j-0.6.1.jar，HttpClient的-4.3.1.jar，的HttpCore-4.3.1.jar和httpmime- 4.2.1.jar到我的应用程序。

Any one please help to resolve this issue? I want to send an image and JsonObject to an PHP Server with MultipartEntity. I am working on an app that allows the user upload an image by using HttpPost method. I use MultipartEntity and therefore I added the libraries apache-mime4j-0.6.1.jar, httpclient-4.3.1.jar, httpcore-4.3.1.jar and httpmime-4.2.1.jar into my app.

下面是我的code：

    public JSONObject doFileUpload(String _fname, String _lname, String _email,
                String _password, String _country, String _countrycode,
                String _phone) {

            File file1 = new File(selectedPath);
            String urlString = "http://capstonehostingservices.com/fetch_new/app/index.php/fetch/register";
            try {
                HttpClient client = new DefaultHttpClient();
                HttpPost post = new HttpPost(urlString);
                FileBody bin1 = new FileBody(file1);
                MultipartEntity reqEntity = new MultipartEntity();
                reqEntity.addPart("photo", bin1);
                reqEntity.addPart("first_name", new StringBody(_fname));
                reqEntity.addPart("last_name", new StringBody(_lname));
                reqEntity.addPart("email", new StringBody(_email));
                reqEntity.addPart("password", new StringBody(_password));
                reqEntity.addPart("country", new StringBody(_country));
                reqEntity.addPart("country_code", new StringBody(_countrycode));
                reqEntity.addPart("phone", new StringBody(_phone));

                post.setEntity(reqEntity);
                HttpResponse response = client.execute(post);
                resEntity = response.getEntity();
                 String response_str = EntityUtils.toString(resEntity);



                    json = new JSONObject(response_str);


            } catch (Exception ex) {
                Log.e("Debug", "error: " + ex.getMessage(), ex);
            }
            return json;
        }

在上面code我试图响应字符串转换的JSONObject，如何达到这个目标？
我用selectedpath参数作为从GALLARY获得图片路径，我想发送图像和的JSONObject 来与PHP服务器 MultipartEntity 。我工作的一个应用程序，允许用户通过使用 HttpPost 方法上传图片。我使用 MultipartEntity ，所以我增加了库Apache的mime4j-0.6.1.jar，HttpClient的-4.3.1.jar，的HttpCore-4.3.1.jar和httpmime- 4.2.1.jar到我的应用程序。

In above code i was trying to convert response string to jsonobject, how to i achieve this? I used selectedpath parameter as to get image path from gallary, I want to send an image and a JsonObject to an PHP Server with MultipartEntity. I am working on an app that allows the user upload an image by using HttpPost method. I use MultipartEntity and therefore I added the libraries apache-mime4j-0.6.1.jar, httpclient-4.3.1.jar, httpcore-4.3.1.jar and httpmime-4.2.1.jar into my app.

推荐答案

这可能不是最好的答案，但它是开始一个很好的例子。

This may not be the best answer but it is a very good example to get started.

使用下面的函数发送文件到服务器：

Use the following function to send file to server:

public static void postFile(String fileName) throws Exception {//fileName is path+filename of picture
        String url_upload_image = "http://url-to-api/upload_photo.php";
        HttpClient client = new DefaultHttpClient();
        HttpPost post = new HttpPost(url_upload_image);
        MultipartEntityBuilder multipartEntity = MultipartEntityBuilder
                .create();
        multipartEntity.setMode(HttpMultipartMode.BROWSER_COMPATIBLE);
        multipartEntity.addPart("file", new FileBody(new File(fileName)));
        post.addHeader("id", id);//id is anything as you may need
        post.setEntity(multipartEntity.build());
        HttpResponse response = client.execute(post);
        HttpEntity entity = response.getEntity();

        entity.consumeContent();
        client.getConnectionManager().shutdown();
    }

PHP文件，该文件是在 HTTP：//url-to-api/upload_photo.php

<?php
    $name = $_POST['id'];

    $file_path = "images/";

    $file_path = $file_path . basename( $_FILES['file']['name']);

    if(move_uploaded_file($_FILES['file']['tmp_name'], $file_path)) {
        echo "success";
        echo $name;
    } else{
        echo "fail";
    }
 ?>

并确保你的服务器目录或文件夹是可执行的，可读写。我有这样的重大问题。这就是称为777权限 ..相信我，这是因为其他的事情要考虑的重要。

And make sure that your directory or folder in server is Executable, Writable and Readable. I had this as the major problem. This is called 777 permission.. Believe me, this is as important as other things to consider.

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