转自:http://blog.csdn.net/saindy5828/article/details/6414014
1、 从Transaction 的TransactionReceipt属性中得到接收的数据,并以base64编码;
2、创建JSON对象,字典格式,单键值对,键名为“receiptdata”,值为上一次编码的数据,效果:
{"receipt-data":"base64编码之后的数据"}
3、发送HTTP POST请求,将数据发送到App Store ,其地址为:https://buy.itunes.apple.com/verifyReceipt
4、App Store的返回值也是一个JSON格式对象,包括两个键值对:
{
"status" : 0,
"receipt" : { … }
}
说明:
如果status的值为0,就说明该receipt为有效的,否则就是无效的。
public int verifyReceipt( byte[] receipt) {
int status = -1; //This is the URL of the REST webservice in iTunes App Store
URL url = new URL("https://buy.itunes.apple.com/verifyReceipt"); //make connection, use post mode
HttpsURLConnection connection = (HttpsURLConnection) url.openConnection();
connection.setRequestMethod("POST");
connection.setDoOutput(true);
connection.setAllowUserInteraction(false); //Encode the binary receipt data into Base 64
//Here I'm using org.apache.commons.codec.binary.Base64 as an encoder, since commons-codec is already in Grails classpath
Base64 encoder = new Base64();
String encodedReceipt = new String(encoder.encode(receipt)); //Create a JSON query object
//Here I'm using Grails' org.codehaus.groovy.grails.web.json.JSONObject
Map map = new HashMap();
map.put("receipt-data", encodedReceipt);
JSONObject jsonObject = new JSONObject(map); //Write the JSON query object to the connection output stream
PrintStream ps = new PrintStream(connection.getOutputStream());
ps.print(jsonObject.toString());
ps.close(); //Call the service
BufferedReader br = new BufferedReader(new InputStreamReader(connection.getInputStream()));
//Extract response
String str;
StringBuffer sb = new StringBuffer();
while ((str = br.readLine()) != null) {
sb.append(str);
sb.append("/n");
}
br.close();
String response = sb.toString(); //Deserialize response
JSONObject result = new JSONObject(response);
status = result.getInt("status");
if (status == 0) {
//provide content
} else {
//signal error, throw an exception, do your stuff honey!
} return status ; }
验证的方式也可以采用HTTP协议:HttpClient,下载httpcomponents-client,然后导入lib里的几个jar包。
这也是一种方式,不再进行多余的说明了。所谓条条道路通“苹果”。