我有一个GridView类别，我想获得相应的子类别。我正在使用Volley POST方法来完成它。 API通过Postman正常工作，但在应用BasicNetwork.performRequest: Unexpected response code 403 for API中调用时会出错。
这就是我调用API的方式
StatusActivity.java
public void _loadAPI_POST() {
Map<String, String> jsonPOST = new HashMap<>();
jsonPOST.put("CategoryId", "3");
_SEND(jsonPOST); // Check INTERNET is ON or NOT ?
}
private void _SEND(Map<String, String> getPARAM) {
try {
String URL = "http://api.statuscollection.in/api/GetCategoryData";
VolleyApiCAll volleyApiCAll = new VolleyApiCAll(StatusActivity.this);
volleyApiCAll.Volley_POST(getPARAM, URL, new VolleyApiCAll.VolleyCallback() {
@Override
public void onSuccessResponse(String result) {
try {
if(result.matches("VOLLEY_NETWORK_ERROR")) {
Toast.makeText(StatusActivity.this, "NETWORK PROBLEM", Toast.LENGTH_SHORT).show();
}
else {
try {
System.out.println("RESULT"+result);
// GET JSON THROUGH result
} catch (Exception e) {
e.printStackTrace();
}
}
}
catch (Exception e){
e.printStackTrace();
}
}
});
} catch (Exception e) {
e.printStackTrace();
}
}
VolleyApiCAll.java
Context context;
public VolleyApiCAll(Context context_) {
context=context_;
}
public interface VolleyCallback
{
void onSuccessResponse(String result);
}
public void Volley_GET(String url, final VolleyCallback callback)
{
StringRequest strREQ = new StringRequest(Request.Method.GET, url, new Response.Listener < String > ()
{
@Override
public void onResponse(String Response)
{
callback.onSuccessResponse(Response);
}
}, new Response.ErrorListener()
{
@Override
public void onErrorResponse(VolleyError e)
{
callback.onSuccessResponse("VOLLEY_NETWORK_ERROR");
}
})
{
/**
* Passing some request headers
* */
@Override
public Map<String, String> getHeaders() throws AuthFailureError {
HashMap<String, String> headers = new HashMap<String, String>();
headers.put("Content-Type", "application/json");
headers.put("Authentication", "5vLGpxfO4_FktAkPB0iM--FQh18USYEG7LWWUCbITpGioOZ16QRxe0JuoryqhMHArMcv-lBleaddcJPG3bsj3m94qOke3uq3mXDtvPUZHFkqm9_3Eub7MYlVCudtd8i_qxnFYQFVV8OTNfQ4w01vDjwBvJI2zVUXl8M-A9YfH09sPslbJKyZUBZBNcAqjSOzeIneaNVPH0WWcBP9xx_GvsvISNLWAM1KWlSia5Kb7Glj2ufmdZwl_XE5h1C_0guL5AkJniyLK1cCFjOXH7dgjJA6vjwgc0ol488TyWPWA19sOzsdPrnuzr724-BK3Z84");
return headers;
}
};
MySingleton.getInstance(context).addToRequestQueue(strREQ);
}
private HashMap<String, String> createBasicAuthHeader(String username, String password)
{
HashMap<String, String> headerMap = new HashMap<String, String>();
String credentials = username + ":" + password;
String base64EncodedCredentials =
Base64.encodeToString(credentials.getBytes(), Base64.NO_WRAP);
headerMap.put("Authorization", "Basic " + base64EncodedCredentials);
return headerMap;
}
String BOUNDARY = "INTELLIJ_AMIYA";
public void Volley_POST(final Map<String, String> params, String url,final VolleyCallback callback)
{
try
{
RequestQueue requestQueue = Volley.newRequestQueue(context);
StringRequest stringRequest = new StringRequest(Request.Method.POST, url, new Response.Listener<String>()
{
@Override
public void onResponse(String response)
{
callback.onSuccessResponse(response);
}
}, new Response.ErrorListener()
{
@Override
public void onErrorResponse(VolleyError error)
{
callback.onSuccessResponse("POST_ERROR");
}
})
{
/* public Map<String, String> getHeaders() throws AuthFailureError {
HashMap<String, String> headers = new HashMap<String, String>();
return headers;
}*/
/**
* Passing some request headers
* */
@Override
protected Map<String, String> getParams()
{
Map<String, String> params = new HashMap<String, String>();
params.put("Authentication", "5vLGpxfO4_FktAkPB0iM--FQh18USYEG7LWWUCbITpGioOZ16QRxe0JuoryqhMHArMcv-lBleaddcJPG3bsj3m94qOke3uq3mXDtvPUZHFkqm9_3Eub7MYlVCudtd8i_qxnFYQFVV8OTNfQ4w01vDjwBvJI2zVUXl8M-A9YfH09sPslbJKyZUBZBNcAqjSOzeIneaNVPH0WWcBP9xx_GvsvISNLWAM1KWlSia5Kb7Glj2ufmdZwl_XE5h1C_0guL5AkJniyLK1cCFjOXH7dgjJA6vjwgc0ol488TyWPWA19sOzsdPrnuzr724-BK3Z84");
params.put("Content-Type", "multipart/form-data; boundary=" + BOUNDARY+"; charset=utf-8");
return params;
}
@Override
public String getBodyContentType() {
return "multipart/form-data; charset=utf-8";
}
@Override
public byte[] getBody() throws AuthFailureError
{
try
{
String postBody = createPostBody(params);
return postBody == null ? null : postBody.getBytes("utf-8");
}
catch (NegativeArraySizeException n)
{
n.printStackTrace();
return null;
}
catch (UnsupportedEncodingException uee)
{
uee.printStackTrace();
return null;
}
}
@Override
protected Response<String> parseNetworkResponse(NetworkResponse response)
{
String responseString = "post_error";
if (response != null)
{
try
{
responseString = new String(response.data, HttpHeaderParser.parseCharset(response.headers));
}
catch (Exception e)
{
e.printStackTrace();
}
}
return Response.success(responseString, HttpHeaderParser.parseCacheHeaders(response));
}
};
MySingleton.getInstance(context).addToRequestQueue(stringRequest);
}
catch (NegativeArraySizeException n)
{
n.printStackTrace();
}
}
private String createPostBody(Map<String, String> params) {
StringBuilder sbPost = new StringBuilder();
for (String key : params.keySet()) {
if (params.get(key) != null) {
sbPost.append("\r\n" + "--" + BOUNDARY + "\r\n");
sbPost.append("Content-Disposition: form-data; name=\"" + key + "\"" + "\r\n\r\n");
sbPost.append(params.get(key));
}
}
return sbPost.toString();
}