[英]Ion Koush Library - Response is not cacheable
我正在嘗試使用Ion Koush庫從后端API中獲取一些json。 我可以在其中一個API路由中成功完成此操作,但在另一個API路由中,我得到以下回答:響應不可緩存。 為了更好地理解問題,以下是代碼:
Ion.with(clientSummaryActivity.this)
.load("GET",url)
.setLogging("LOG",Log.VERBOSE)
.addQuery("format","json")
.setHeader("Authorization",getIntent().getExtras().getString("token"))
.asJsonArray()
.setCallback(new FutureCallback<JsonArray>() {
@Override
public void onCompleted(Exception e, JsonArray result) {
// do stuff with the result or error
if(e != null){
Toast.makeText(clientSummaryActivity.this, "Erro na Query: " + e, Toast.LENGTH_LONG).show(); //cria balao de texto na view indicada
Log.v("Query Error2: ",""+e);
return;
}
if(result == null)
Log.v("Error: ","resultado vazio");
else
Log.v("Teste: ",""+result);
return;
}
});
}
這是調試日志:
> D/LOG: (0 ms) http://10.0.2.2:8080/api/comentario/cliente/00013436415782/?format=json: preparing request
>D/LOG: (0 ms) http://10.0.2.2:8080/api/comentario/cliente/00013436415782/?format=json: preparing request
>I/LOG: (0 ms) http://10.0.2.2:8080/api/comentario/cliente/00013436415782/?format=json: Using loader: com.koushikdutta.ion.loader.HttpLoader@18cbec99
>D/LOG: (0 ms) http://10.0.2.2:8080/api/comentario/cliente/00013436415782/?format=json: Executing request.
>V/LOG: (4 ms) http://10.0.2.2:8080/api/comentario/cliente/00013436415782/?format=json: Resolving domain and connecting to all available addresses
>V/LOG: (10 ms) http://10.0.2.2:8080/api/comentario/cliente/00013436415782/?format=json: attempting connection to /10.0.2.2:8080
>V/LOG: (14 ms) http://10.0.2.2:8080/api/comentario/cliente/00013436415782/?format=json: socket connected
>V/LOG: (14 ms) http://10.0.2.2:8080/api/comentario/cliente/00013436415782/?format=json:
GET /api/comentario/cliente/00013436415782/?format=json HTTP/1.1
Host: 10.0.2.2:8080
User-Agent: Dalvik/2.1.0 (Linux; U; Android 5.1.1; Android SDK built for x86_64 Build/LMY48X)
Accept-Encoding: gzip, deflate
Connection: keep-alive
Accept: */*
Cache-Control: no-cache
Authorization: Token a3e8b50ae73aabad0605433f704eb628269f68c8
>V/LOG: (16 ms) http://10.0.2.2:8080/api/comentario/cliente/00013436415782/?format=json: request completed
>W/EGL_emulation: eglSurfaceAttrib not implemented
>W/OpenGLRenderer: Failed to set EGL_SWAP_BEHAVIOR on surface 0x7fca6d3b8380, error=EGL_SUCCESS
>D/OpenGLRenderer: endAllStagingAnimators on 0x7fca6d1e4c00 (ListView) with handle 0x7fca6406c080
>V/LOG: (433 ms) http://10.0.2.2:8080/api/comentario/cliente/00013436415782/?format=json: Received headers:
> HTTP/1.0 200 OK
> Date: Tue, 17 Jan 2017 13:28:12 GMT
> Server: WSGIServer/0.1 Python/2.7.12
> Vary: Accept
> X-Frame-Options: SAMEORIGIN
> Content-Type: application/json
> Allow: GET, HEAD, OPTIONS
>D/LOG: (433 ms) http://10.0.2.2:8080/api/comentario/cliente/00013436415782/?format=json: Response is not cacheable
>V/LOG: (433 ms) http://10.0.2.2:8080/api/comentario/cliente/00013436415782/?format=json: Final (post cache response) headers:
> HTTP/1.0 200 OK
> Date: Tue, 17 Jan 2017 13:28:12 GMT
> Server: WSGIServer/0.1 Python/2.7.12
> Vary: Accept
> X-Frame-Options: SAMEORIGIN
> Content-Type: application/json
> Allow: GET, HEAD, OPTIONS
>D/LOG: (433 ms) http://10.0.2.2:8080/api/comentario/cliente/00013436415782/?format=json: Connection successful
>V/LOG: (434 ms) http://10.0.2.2:8080/api/comentario/cliente/00013436415782/?format=json: closing out socket (exception)
這是瀏覽器REST客戶端獲取的Json:
{
"id_comentario": 5,
"id_venda_vendas": {
"id_venda": 139,
"id_cliente_cliente": {
"id_cliente": 22,
"nome": "nome",
"telefone": "nao_tem_ainda_layout",
"cpf": "cpf",
"endereco": "endereco",
"primeira_vez": true,
"data_nascimento": "dob",
"observacao": null,
"foto": null,
"email": "nao_tem_ainda_layout",
"id_ultima_compra": {}
},
"id_loja_loja": {
"id_loja": 2,
"nome": "nome",
"nome_fantasia": "nomefantasia",
"cnpj": "cnpj"
},
"data": "2016-11-18",
"hora": "15:36:02"
},
"id_funcionario_funcionario": {
"id_funcionario": 2,
"nome": "nome",
"cargo": "cargo"
},
"id_tipo_comentario_tipo_comentario": {
"id_tipo_comentario": 2,
"tipo": "Tipo"
},
"descricao": "nao tem descricao"
}
]
關鍵是,為什么我可以從REST客戶端獲得它,而Ion說Response是不可緩存的? 那是什么意思呢?
OBS:我可以從其他查詢中獲得成功的結果。 但是由於發布時間太長,因此我不會在此處發布。
離子會自動緩存所有GET
請求。 正如我所看到的,您的服務器發送標頭Cache-Control: no-cache
,這表示不允許緩存此請求。 您可以更改服務器上的緩存策略,也可以將.noCache()
添加到您的請求中。
感謝Orest Savchak,我可以使用以下方法解決它:
Ion.getDefault(getApplicationContext()).configure().getResponseCache().setCaching(false);
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