Question

--- ---解决方案--- ---
问题发生在我们的服务器上。如果我们将www放在我们的域名前面，它只能处理邮件请求。这就是导致问题的原因。我将第一个答案设置为答案，因为一旦我对URL进行排序，它就起作用了。

原始问题

我的PHP脚本中有一个POST变量，总是空白的我试图改变变量的名称，变量的内容等。

问题必须存在于java代码中，因为当我在php中var_dump()请求时，它是null。

这是我的情景：

我让用户拍摄照片，照片会保存到SD卡中，然后我会获得图片的路径，并最终将其转换为Base64字符串。然后我想将这个base64字符串发布到一个php脚本，该脚本将它从Base64转换回来并将其作为图像写在我服务器的硬盘上，如下所示：

File f = new File(savedImagePath);

Bitmap bitmap = BitmapFactory.decodeFile(f.getPath());          
ByteArrayOutputStream stream = new ByteArrayOutputStream(); 
bitmap.compress(Bitmap.CompressFormat.JPEG, 30, stream); 
byte [] byte_arr = stream.toByteArray();
String image_str = Base64.encodeToString(byte_arr, Base64.DEFAULT);

HttpClient client = new DefaultHttpClient();
HttpPost post = new HttpPost("http://myURL/uploadImage.php");
List<NameValuePair> pairs = new ArrayList<NameValuePair>();

pairs.add(new BasicNameValuePair("image", image_str));
post.setEntity(new UrlEncodedFormEntity(pairs));
HttpResponse response = client.execute(post);

在服务器端，这就是我的PHP脚本：

<?php
$base = $_POST["image"];
$binary=base64_decode($base);
header('Content-Type: bitmap; charset=utf-8');
$file = fopen('uploaded_image.jpg', 'w');
fwrite($file, $binary);
fclose($file);

echo "script done executing";
?>

这是我试图发布的Base64字符串的示例：

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

Answer 1

这是图片的代码：

ByteArrayOutputStream bao = new ByteArrayOutputStream();                

bitmap.compress(Bitmap.CompressFormat.JPEG, 90, bao);
byte [] ba = bao.toByteArray();
String ba1=Base64.encodeBytes(ba);
ArrayList<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>();
nameValuePairs.add(new BasicNameValuePair("image",ba1));

这是用于将图像发送到服务器的HTTP代码：

HttpClient httpclient = new DefaultHttpClient();
HttpPost httppost = new HttpPost("http://servername.com/uploadimage.php");
httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));        
HttpResponse response = httpclient.execute(httppost);
HttpEntity entity = response.getEntity();
is = entity.getContent();

如果你发现任何困难，请问我或支票：

在PHP头文件更改中：

header('Content-Type: image/jpg; charset=utf-8');
$base=$_REQUEST['image'];

Answer 2

您是否尝试过在PHP中阅读原始帖子数据？像

这样的东西

$data = $xml = file_get_contents('php://input');

请查看此链接以获取更多信息

http://www.codediesel.com/php/reading-raw-post-data-in-php/

Answer 3

只需下载Base64.java http://iharder.sourceforge.net/current/java/base64/＆amp;把那个文件放在你的项目中那么

    just replace the 

String image_str = Base64.encodeToString(byte_arr, Base64.DEFAULT);

这个用

String image_str = Base64.encodeBytes(byte_arr);

替换此post.setEntity(new UrlEncodedFormEntity(pairs)); 与

  post.setEntity(new UrlEncodedFormEntity(pairs,HTTP.UTF_8));

同时检查导入Base64时，它会从您的包中导入文件＆amp;然后发布到服务器它将发布。

在您的PHP代码中只需更改

改变这个 $ base = $ _POST [“image”]; 到
$ base = $ _REQUEST ['image'];

Answer 4

尝试按以下方式发送数据：

HttpParams httpParams = new BasicHttpParams();
HttpConnectionParams.setConnectionTimeout(httpParams, 60000);  //1 min
HttpConnectionParams.setSoTimeout(httpParams, 60000);          //1 min

HttpClient client = new DefaultHttpClient(httpParams);
HttpPost post = new HttpPost("http://myURL/uploadImage.php");

List<NameValuePair> pairs = new ArrayList<NameValuePair>();
pairs.add(new BasicNameValuePair("image", image_str));

post.setEntity(new UrlEncodedFormEntity(pairs, HTTP.UTF_8));   // as UTF-8
HttpResponse response = client.execute(post);

Answer 5

你的HTTP响应代码是200吗？如果是这样，请尝试设置这些标题字段：

“接受”：“text / html”

“接受语言”：“en”

“Content-Length”：yourString.length

“Content-Type”：“application / x-www-form-urlencoded”

Android将Base64字符串发布到PHP

5 个答案: