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:"POST",
 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, "POST"); 
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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