Question

我正在尝试使用HttpClient和MultipartEntity将图像从Adroid应用程序上传到php网络服务器。

以下是我的代码片段：

protected Void doInBackground(Void... params) {
    HttpClient client = new DefaultHttpClient();
    client.getParams().setParameter(CoreProtocolPNames.PROTOCOL_VERSION, HttpVersion.HTTP_1_1);

    HttpPost post = new HttpPost( "http://URL/upload.php" );

    try {
        MultipartEntity entity = new MultipartEntity(  );
        entity.addPart("type", new StringBody("photo"));
        entity.addPart("data", new FileBody(new File (this.path)));         
        post.setEntity(entity);
        post.getParams().setBooleanParameter(CoreProtocolPNames.USE_EXPECT_CONTINUE, false);             
        post.addHeader( "Content-Type", "multipart/form-data; ");

        HttpResponse response = client.execute(post);
        HttpEntity resEntity = response.getEntity();

        System.out.println(response.getStatusLine());

        client.getConnectionManager().shutdown();
    } catch (UnsupportedEncodingException e) {          
        e.printStackTrace();
    } catch (ClientProtocolException e) {           
        e.printStackTrace();
    } catch (IOException e) {           
        e.printStackTrace();
    }

    return null;
}

在php文件中我添加了print_r（$ _ FILE）以查看数组的内容，并显示一个空数组。

执行HttpClient后，LogCat显示以下内容

06-17 14:54:03.908: I/System.out(1256): HTTP/1.1 200 OK
06-17 14:54:03.998: D/111(1256): Array
06-17 14:54:03.998: D/111(1256): (
06-17 14:54:03.998: D/111(1256): )
06-17 14:54:04.068: D/dalvikvm(1256): GC_CONCURRENT freed 200K, 12% free 2559K/2900K, paused 96ms+5ms, total 161ms

有人可以告诉我我要添加到Android代码中的内容吗？

Answer 1

根据blog post about using MultipartEntity to post data to a url，您可能需要在项目中包含一些其他jar文件。它们包括以下apache开源项目：apache-mime4j，httpclient, httpcore and httpmime。

Answer 2

在构造函数中添加：

MultipartEntity reqEntity = new MultipartEntity(HttpMultipartMode.BROWSER_COMPATIBLE);

Android HttpClient Post File MultipartEntity

2 个答案: