我需要提出一个 api 请求。两个标题：接受授权五个身体参数。数字制作模型描述盘子通过邮递员，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：通过同一主机登录效果很好，所以设置不是问题，我认为我的主要问题在于 api 调用。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贡献1869条经验 获得超4个赞
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);
}
qq_遁去的一_1
TA贡献1725条经验 获得超8个赞
当你想通过 body 传递数据时，你需要在字符串请求之前创建一个 json 对象。
试试这种方式，
1. 为请求创建一个字符串 url。
2.为body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. 在此之后，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”，对于授权，您必须仅使用不带 (Bearer) 的令牌。
完毕。
眼眸繁星
TA贡献1873条经验 获得超9个赞
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);
}
在每个方法中输入日志以检查正在执行的方法以及可能的错误
如果在此之后有错误，则从 logcat 中发布错误，我们将迅速解决。
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