Android 将 Base64 字符串发送到 PHP

Android post Base64 String to PHP(Android 将 Base64 字符串发送到 PHP)

问题描述

------ 解决方案------
问题出在我们的服务器上.如果我们将 www 放在我们的域名前面，它只能处理发布请求.所以这就是导致问题的原因.我将第一个答案设置为 THE 答案，因为它在我对 URL 进行排序后起作用.

------ Solution ------
The issue was on our server. It can only handle post requests if we put www in front of our domain name. So that's what caused the problems. I'm setting the first answer as THE answer since it worked once I sorted the URL out.

原始问题

我的 PHP 脚本中有一个 POST 变量始终为空.
我尝试更改变量的名称、变量的内容等.

I have a POST variable in my PHP script is always blank.
I've tried to change the variable's name, the content of the variable etc..

问题出在java代码上，因为当我在php中var_dump()请求时，它是空的.

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);

<?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";
?>

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推荐答案

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));

这是将图像发送到服务器的 HTTP 代码:

This is the HTTP code for sending the image to the server:

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();

如果您发现更多困难，请询问我或检查:

If you find any more difficulties ask me or a check:

• 这个类似的图片上传教程
• Base64 示例

在 PHP 头文件中的变化:

In PHP header file changes :

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

这篇关于Android 将 Base64 字符串发送到 PHP的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持编程学习网！