POST一个JSON格式的数据给Restful服务实例详解

            在Android/Java平台上实现POST一个json数据：
JSONObject jsonObj = new JSONObject();
jsonObj.put("username", username);
jsonObj.put("apikey", apikey);
// Create the POST object and add the parameters
HttpPost httpPost = new HttpPost(url);
StringEntity entity = new StringEntity(jsonObj.toString(), HTTP.UTF_8);
entity.setContentType("application/json");
httpPost.setEntity(entity);
HttpClient client = new DefaultHttpClient();
HttpResponse response = client.execute(httpPost);
用curl可执行如下命令：
curl -l -H "Content-type: application/json" -X POST -d '{"phone":"13521389587","password":"test"}' http://domain/apis/users.json
用jQuery：
$.ajax({
url:url,
type:"OST",
data:data,
contentType:"application/json; charset=utf-8",
dataType:"json",
success: function(){
  ...
}
})
PHP用cUrl实现：
$data = array("name" => "Hagrid", "age" => "36");                                   
$data_string = json_encode($data);   
$ch = curl_init('http://api.local/rest/users');   
curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "OST");              
curl_setopt($ch, CURLOPT_POSTFIELDS, $data_string);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_HTTPHEADER, array(         
  'Content-Type: application/json',
  'Content-Length: ' . strlen($data_string))      
);                                                           
$result = curl_exec($ch);
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