带标头和正文参数的排球请求

Question

我需要发出一个api请求。

两个标题：

1. 接受

2. 授权

五种身体参数。

1. 数
2. 使
3. 模型
4. 描述
5. 板

通过邮递员，一切都很好。 但是，当我尝试通过android应用程序时，我无法通过。 注意：通过同一主机登录非常有效，因此设置不是问题，我认为我的主要问题是在api调用中。

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;
            }

            @Override
            protected Map<String, String> getParams() {
                Map<String, String> params = new HashMap<String, String>();
                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);

                params.put("number", number.getText().toString());
                params.put("make", make.getText().toString());
                params.put("model", model.getText().toString());
                params.put("description", description.getText().toString());
                params.put("plates", plates.getText().toString());
                return params;
            }
        };
        queue.add(request);
    }

编辑：通过解决方案＃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);
}

邮递员：

Answer 1

当您想通过主体传递数据时，需要在字符串请求之前创建一个json对象。
尝试这种方式
1.创建一个用于请求的字符串URL。
2.为主体数据创建json对象，并将数据传递给它。 喜欢，

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.之后，应用stringRequest。
4.现在，在标题方法之前和错误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，将Content-Type用于“ application / json”，对于Authorization，您必须仅使用令牌而不使用（Bearer）。
完成。

Answer 2

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);
}  

将Log放入每个方法中，以检查正在执行的方法以及可能的错误
如果之后发生错误，请通过logcat发布错误，我们将尽快解决。