正如我评论,对POJO类,你可以因为你,如果你使用StringRequest做大量的工作创造如下面的代码自定义请求。
这里,我的POJO类是FileInfo,例如。
public class FileRequest extends Request<FileInfo> {
private final String mRequestBody;
private final Response.Listener<FileInfo> mListener;
private final Response.ErrorListener mErrorListener;
private static final String PROTOCOL_CHARSET = "utf-8";
private static final String PROTOCOL_CONTENT_TYPE = String.format("application/json; charset=%s", PROTOCOL_CHARSET);
public FileRequest(int method, String url, Response.Listener<FileInfo> listener, Response.ErrorListener errorListener) {
super(method, url, errorListener);
this.mRequestBody = null;
this.mListener = listener;
this.mErrorListener = errorListener;
}
public FileRequest(String url, String requestBody, Response.Listener<FileInfo> listener, Response.ErrorListener errorListener) {
super(requestBody == null ? Method.GET : Method.POST, url, errorListener);
this.mRequestBody = requestBody;
this.mListener = listener;
this.mErrorListener = errorListener;
}
public FileRequest(int method, String url, String requestBody, Response.Listener<FileInfo> listener, Response.ErrorListener errorListener) {
super(method, url, errorListener);
this.mRequestBody = requestBody;
this.mListener = listener;
this.mErrorListener = errorListener;
}
@Override
protected Response<FileInfo> parseNetworkResponse(NetworkResponse response) {
try {
FileInfo fileInfo = new FileInfo();
fileInfo.Size = Long.valueOf(response.headers.get("Content-Length"));
fileInfo.Type = response.headers.get("Content-Type");
fileInfo.Modified = response.headers.get("Last-Modified");
fileInfo.Data = response.data;
return Response.success(fileInfo, HttpHeaderParser.parseCacheHeaders(response));
} catch (Exception e) {
return Response.error(new ParseError(e));
}
}
@Override
protected void deliverResponse(FileInfo response) {
mListener.onResponse(response);
}
@Override
protected VolleyError parseNetworkError(VolleyError volleyError) {
return super.parseNetworkError(volleyError);
}
@Override
public void deliverError(VolleyError error) {
mErrorListener.onErrorResponse(error);
}
@Override
public String getBodyContentType() {
return PROTOCOL_CONTENT_TYPE;
}
@Override
public byte[] getBody() throws AuthFailureError {
try {
return mRequestBody == null ? null : mRequestBody.getBytes(PROTOCOL_CHARSET);
} catch (UnsupportedEncodingException uee) {
VolleyLog.wtf("Unsupported Encoding while trying to get the bytes of %s using %s",
mRequestBody, PROTOCOL_CHARSET);
return null;
}
}
}
希望这有助于!
来源
2015-09-06 07:26:00
BNK
Thansk。但它给了什么好处? –
@AshwaniK:它将返回一个通用的JsonElement,然后您可以检查它是否是JsonArray或JsonObject。当然,如果你不想这样做,你可以创建一个类扩展请求 :) –
BNK
我认为这个问题存在一些困惑。我的问题是,对于json请求,我们可以使用GSON将它转换为POJO来进行字符串请求。 –