我需要提出一個 api 請求。兩個標題：接受授權五個身體參數。數字制作模型描述盤子通過郵遞員，一切都很好。但是當我嘗試通過android應用程序時，我無法通過。注意：通過同一主機登錄效果很好，所以設置不是問題，我認為我的主要問題在于 api 調用。public void add(View view) { RequestQueue queue = Volley.newRequestQueue(this); String URL = "http://10.0.2.2:8000/api/trucks"; StringRequest request = new StringRequest(Request.Method.POST, URL, new Response.Listener<String>() { @Override public void onResponse(String response) { try { JSONObject jsonObj = new JSONObject(response); // parse response } catch (JSONException e) { e.printStackTrace(); } } }, new Response.ErrorListener() { @Override public void onErrorResponse(VolleyError error) { NetworkResponse response = error.networkResponse; String errorMsg = ""; if (response != null && response.data != null) { String errorString = new String(response.data); } } } ) { @Override public Map<String, String> getHeaders() { HashMap<String, String> headers = new HashMap<>(); headers.put("Accept", "application/json"); headers.put("Authorization", "Bearer " + myToken); return headers; } }; queue.add(request); }
3 回答
MMTTMM
TA貢獻1869條經驗 獲得超4個贊
通過解決方案#1。
public void add(View view) throws JSONException {
RequestQueue queue = Volley.newRequestQueue(this);
TextInputEditText number = findViewById(R.id.textInputEditTextNumber);
TextInputEditText make = findViewById(R.id.textInputEditTextMake);
TextInputEditText model = findViewById(R.id.textInputEditTextModel);
TextInputEditText description = findViewById(R.id.textInputEditTextDescription);
TextInputEditText plates = findViewById(R.id.textInputEditTextPlates);
JSONObject jsonObject = new JSONObject();
jsonObject.put("Number", number.getText().toString());
jsonObject.put("Make", make.getText().toString());
jsonObject.put("Model", model.getText().toString());
jsonObject.put("Description", description.getText().toString());
jsonObject.put("Plates", plates.getText().toString());
final String requestBody = jsonObject.toString();
JsonObjectRequest jsonRequest = new JsonObjectRequest(Request.Method.POST, "http://10.0.2.2:8000/api/trucks", jsonObject,
new Response.Listener<JSONObject>() {
@Override
public void onResponse(JSONObject response) {
//now handle the response
Toast.makeText(truck_add.this, response.toString(), Toast.LENGTH_SHORT).show();
}
}, new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
//handle the error
Toast.makeText(truck_add.this, "An error occurred", Toast.LENGTH_SHORT).show();
error.printStackTrace();
}
}) { //this is the part, that adds the header to the request
@Override
public Map<String, String> getHeaders() {
Map<String, String> params = new HashMap<String, String>();
params.put("Accept", "application/json");
params.put("Authorization", myToken);
return params;
}
};
queue.add(jsonRequest);
}
qq_遁去的一_1
TA貢獻1725條經驗 獲得超8個贊
當你想通過 body 傳遞數據時，你需要在字符串請求之前創建一個 json 對象。
試試這種方式，
1. 為請求創建一個字符串 url。
2.為body數據創建json對象并將數據傳遞給它。喜歡，
JSONObject jsonObject= new JSONObject();
jsonObject.put("Number", address.getNumber());
jsonObject.put("Make", address.getMake());
jsonObject.put("Model", address.getModel());
jsonObject.put("Description", address.getDescription());
jsonObject.put("Plates", address.getPlates());
final String requestBody=jsonObject.toString();
3. 在此之后，應用 stringRequest。
4. 現在，在標題方法之前和錯誤方法之后添加以下行。
@Override
public String getBodyContentType() {
return "application/json; charset=utf-8";
}
@Override
public byte[] getBody() throws AuthFailureError {
try {
return requestBody == null ? null : requestBody.getBytes("utf-8");
} catch (UnsupportedEncodingException uee) {
VolleyLog.wtf("Unsupported Encoding while trying to get the bytes of %s using %s", requestBody, "utf-8");
return null;
}
5. 在您的 getHeaders() 方法中，將 Content-Type 用于“application/json”，對于授權，您必須僅使用不帶 (Bearer) 的令牌。
完畢。
眼眸繁星
TA貢獻1873條經驗 獲得超9個贊
public void add(View view) throws JSONException {
String URL = "http://10.0.2.2:8000/api/trucks";
//removed views initialization from here.
//you need to initialize views in oncreate() / oncreateView() method.
/*first create json object in here.
then set keys as per required body format with values
*/
JSONObject jsonObject = new JSONObject();
jsonObject.put("Number", number.getText().toString());
jsonObject.put("Make", make.getText().toString());
jsonObject.put("Model", model.getText().toString());
jsonObject.put("Description", description.getText().toString());
jsonObject.put("Plates", plates.getText().toString());
final String requestBody = jsonObject.toString();
RequestQueue queue = Volley.newRequestQueue(this);
StringRequest request = new StringRequest(Request.Method.POST, URL,
new Response.Listener<String>() {
@Override
public void onResponse(String response) {
try {
JSONObject jsonObj = new JSONObject(response);
// parse response
} catch (JSONException e) {
e.printStackTrace();
}
}
},
new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
NetworkResponse response = error.networkResponse;
String errorMsg = "";
if (response != null && response.data != null) {
String errorString = new String(response.data);
}
}
}
) { //this is the part, that adds the header to the request
//this is where you need to add the body related methods
@Override
public String getBodyContentType() {
return "application/json; charset=utf-8";
}
@Override
public byte[] getBody() throws AuthFailureError {
try {
return requestBody == null ? null : requestBody.getBytes("utf-8");
} catch (UnsupportedEncodingException uee) {
VolleyLog.wtf("Unsupported Encoding while trying to get the bytes of %s
using %s", requestBody, "utf-8");
return null;
}
@Override
public Map<String, String> getHeaders() {
Map<String, String> params = new HashMap<String, String>();
params.put("Content-Type", "application/json");
params.put("Authorization", myToken);
return params;
}
};
queue.add(jsonRequest);
}
在每個方法中輸入日志以檢查正在執行的方法以及可能的錯誤
如果在此之后有錯誤，則從 logcat 中發布錯誤，我們將迅速解決。
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