J'utilise localhost: 8080/_ah/api/explorer google explorer: Je continue à obtenirjava blobstore et le point final Google SPI AppEngine
{
"error": {
"message": "com.google.appengine.repackaged.org.codehaus.jackson.map.JsonMappingException: Can not construct instance of javax.servlet.http.HttpServletResponse, problem: abstract types can only be instantiated with additional type information\n at [Source: N/A; line: -1, column: -1]",
"code": 400,
"errors": [
{
"domain": "global",
"reason": "badRequest",
"message": "com.google.appengine.repackaged.org.codehaus.jackson.map.JsonMappingException: Can not construct instance of javax.servlet.http.HttpServletResponse, problem: abstract types can only be instantiated with additional type information\n at [Source: N/A; line: -1, column: -1]"
}
]
}
mon code Google SPI est:
@ApiMethod(name = "findBillImage", httpMethod = ApiMethod.HttpMethod.GET)
public void findImage(HttpServletResponse httpServletResponse , @Named("blobkey") String blobKeyValue) throws IOException {
BlobKey blobKey = new BlobKey(blobKeyValue);
BlobstoreService blobstoreService = BlobstoreServiceFactory.getBlobstoreService();
blobstoreService.serve(blobKey, httpServletResponse);
}
à tout moment Je tente d'écrire quelque chose à la réponse HttpServletResponse je reçois cette erreur .. im perdu sur pourquoi je ne peux pas écrire à httpServletResponse