我正在实现一个托管在 GAE 中的 RESTful 服务，试图将数据保存到数据存储区。
@Path("/db")
public class DBAccess {
private static final Logger log = Logger.getLogger(DBAccess.class.getName());
// Allows to insert contextual objects into the class,
// e.g. ServletContext, Request, Response, UriInfo
@Context
UriInfo uriInfo;
@Context
Request request;
@POST
@Produces(MediaType.TEXT_HTML)
@Consumes(MediaType.APPLICATION_JSON)
public void saveDataBase(final List<User> data,
@Context HttpServletResponse servletResponse,
@Context HttpServletRequest servletRequest) throws IOException {
log.info("saveDatabae REST Service has been called.");
Key dbKey = KeyFactory.createKey("DataBase", "default");
Entity user;
DatastoreService datastore = DatastoreServiceFactory
.getDatastoreService();
for (int i = 0; i < data.size(); i++) {
user = new Entity("User", dbKey);
user.setProperty("idUser", data.get(i).getIdUser());
user.setProperty("idGMC", data.get(i).getIdGMC());
datastore.put(user);
}
servletResponse.sendRedirect("../index.jsp");
}
}
另一方面，我有一个 Android 应用程序试图像使用它一样使用它
private static void post(String endpoint, Map<String, String> params)
throws IOException, JSONException {
Iterator<Entry<String, String>> iterator = params.entrySet().iterator();
Log.v(TAG, "Posting params to " + endpoint);
HttpClient httpClient = new DefaultHttpClient();
HttpPost post = new HttpPost(endpoint);
post.setHeader("content-type", "application/json");
// Build JSON
JSONObject dato = new JSONObject();
while (iterator.hasNext()) {
Entry<String, String> param = iterator.next();
dato.put(param.getKey(), param.getValue());
}
StringEntity entity = new StringEntity(dato.toString());
post.setEntity(entity);
HttpResponse resp = httpClient.execute(post);
String respStr = EntityUtils.toString(resp.getEntity());
Log.v(TAG, "HttpResponse is " + respStr);
}
这被称为
Map<String, String> params = new HashMap<String, String>();
params.put("regId", regId);
post("http://pickapp-server.appspot.com/rest/db", params);
在 GAE 管理控制台中，我得到以下日志条目：
关键是，用户实体永远不会在 GAE 数据存储中创建。我猜 REST 服务没有被调用。谁能告诉我我错过了什么？