带有参数和文件的Android httpPost

Question

我需要将一些数据上传到PHP服务器.我可以用参数发帖:

String url = "http://yourserver";

HttpClient httpClient = new DefaultHttpClient();
HttpPost httpPost = new HttpPost(url);
nameValuePairs.add(new BasicNameValuePair("user", "username"));
nameValuePairs.add(new BasicNameValuePair("password", "password"));
try {
    httpPost.setEntity(new UrlEncodedFormEntity(nameValuePairs));
    httpClient.execute(httpPost);
}

我也可以上传文件:

String url = "http://yourserver";
File file = new File(Environment.getExternalStorageDirectory(),
        "yourfile");
try {
    HttpClient httpclient = new DefaultHttpClient();

    HttpPost httppost = new HttpPost(url);

    InputStreamEntity reqEntity = new InputStreamEntity(
            new FileInputStream(file), -1);
    reqEntity.setContentType("binary/octet-stream");
    reqEntity.setChunked(true); // Send in multiple parts if needed
    httppost.setEntity(reqEntity);
    HttpResponse response = httpclient.execute(httppost);
    //Do something with response...
}

但是我怎么把它放在一起呢？我需要在一个帖子中上传图片和参数.谢谢

Answer 1

您必须使用MultipartEntity.在线查找并下载这两个库:httpmime-4.0.jar和apache-mime4j-0.4.jar然后你可以根据需要附加任意数量的东西.以下是如何使用它的示例:

HttpPost httpost = new HttpPost("URL_WHERE_TO_UPLOAD");
MultipartEntity entity = new MultipartEntity();
entity.addPart("myString", new StringBody("STRING_VALUE"));
entity.addPart("myImageFile", new FileBody(imageFile));
entity.addPart("myAudioFile", new FileBody(audioFile));
httpost.setEntity(entity);
HttpResponse response;
response = httpclient.execute(httpost);

对于服务器端,您可以使用这些实体标识符名称myImageFile,myString以及myAudioFile.

Answer 2

您必须使用多部分http帖子,就像在HTML表单中一样.这可以通过额外的库来完成.有关完整示例,请参阅使用Http Post发送图像的帖子.