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 parametersHttpPost 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:"POST",  data:data,  contentType:"application/json; charset=utf-8",  dataType:"json",  success: function(){    ...  }})

PHP用cUrl实现：

 1 $data = array("name" => "Hagrid", "age" => "36");  2 $data_string = json_encode($data);  3 $ch = curl_init('http://api.local/rest/users');  4 curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "POST");  5 curl_setopt($ch, CURLOPT_POSTFIELDS, $data_string); 6 curl_setopt($ch, CURLOPT_RETURNTRANSFER, true); 7 curl_setopt($ch, CURLOPT_HTTPHEADER, array(  8 'Content-Type: application/json', 9 'Content-Length: ' . strlen($data_string)) 10 ); 11 $result = curl_exec($ch);