Question

我正在使用JSON从java向php发送数据，使用以下代码：

String url = "abc.php";

JSONObject json = new JSONObject();
json.put("msg", message); // message: "\ud83d\udc4d \ud83d\udc4e"

HttpClient client = new DefaultHttpClient();
HttpConnectionParams.setConnectionTimeout(client.getParams(), 100000);

HttpPost post = new HttpPost(url);

StringEntity se = new StringEntity("json="+json.toString());
post.addHeader("content-type", "application/x-www-form-urlencoded");
post.setEntity(se);

HttpResponse response;
response = client.execute(post);
String resFromServer = org.apache.http.util.EntityUtils.toString(response.getEntity());

Log.i("resFromServer", resFromServer);

PHP代码是：

if( isset($_POST["json"]) ) {

    $jsonDecode = json_decode($_POST["json"]);

    $msg = $jsonDecode->{"msg"};

    echo $msg;
}

但我的输出为 ????

而输出应为

是否存在编码问题？如何解决这个问题？

Answer 1

首先尝试将请求的内容转换为utf8 那些字符串实际上可能不是UTF-16。所以要安全并尝试

if( isset($_POST["json"]) ) {
    $string=$_POST['json'];
    $jsonDecode = mb_convert_encoding($string, "UTF-8", mb_detect_encoding($string));
    $jsonDecode = json_decode($jsonDecode);

    $msg = $jsonDecode->{"msg"};

    echo $msg;
}

java发送UTF-16数据到PHP无法正常工作

1 个答案: