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我试图通过 JSON 和 Json.NET 在 C# .NET 应用程序和一些 PHP 服务器端之间进行一些通信。我正在发布 Json 字符串,但我无法访问(或未正确发送)服务器端的字符串。我的 $_POST 变量显示为空,我不知道使用什么键来访问 Json 字符串。任何人都可以提出任何建议吗?

我的 C# 代码:

TestClass ts = new TestClass("Some Data", 3, 4.5);
string json = JsonConvert.SerializeObject(ts);

HttpWebRequest request =
    (HttpWebRequest)WebRequest.Create("http://localhost/testJson.php");
request.Method = "POST";
request.ContentType = "application/json";
request.ContentLength = json.Length;

StreamWriter sw = new StreamWriter(request.GetRequestStream());
sw.Write(json);   
sw.Close();

HttpWebResponse response = (HttpWebResponse)request.GetResponse();
StreamReader sr = new StreamReader(response.GetResponseStream());
string responseJson = sr.ReadToEnd();
sr.Close();

TestClass returnedTS =
    JsonConvert.DeserializeObject<TestClass>(responseJson);

我的 PHP 代码:

<?php
    require("TestClass.php");
    $json = json_decode($_POST);
    $ts = new TestClass();
    $ts->someString = $json['someString'];
    $ts->someDouble = $json['someDouble'];
    $ts->someInt = $json['someInt'];
    $return_json = json_encode($ts);
    echo $return_json;
?>

我的输出:

<b>Warning</b>:  json_decode() expects parameter 1 to be string, array given in
<b>C:\Program Files (x86)\Apache Software Foundation\Apache2.2\htdocs\testJson.p
hp</b> on line <b>4</b><br />
{"someString":null,"someInt":null,"someDouble":null}
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1 回答 1

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您必须使用 application/json 而不是 application/x-www-form-urlencoded。

也许这有帮助!

于 2012-08-27T07:12:52.010 回答