在排球库中给出com.android.volley.ServerError [英] In volley library giving com.android.volley.ServerError

问题描述

我尝试登录我的应用程序，当我尝试使用排球库调用API时，它给出了com.android.volley.ServerError和响应代码400.

I try to login in my application, when I try to call API using volley library, it's giving com.android.volley.ServerError and response code 400.

final String username = editTextUsername.getText().toString().trim();
        final String password =   editTextPassword.getText().toString().trim();
        final String email = editTextEmail.getText().toString().trim();

  StringRequest stringRequest = new StringRequest(Request.Method.POST, REGISTER_URL,
                new Response.Listener<String>() {
                    @Override
                    public void onResponse(String response) {
                        Toast.makeText(MainActivity.this,response,Toast.LENGTH_LONG).show();
                    }
                },
                new Response.ErrorListener() {
                    @Override
                    public void onErrorResponse(VolleyError error) {
                        Toast.makeText(MainActivity.this,error.toString(),Toast.LENGTH_LONG).show();
                    }
                }){
            @Override
            protected Map<String,String> getParams(){
                Map<String,String> params = new HashMap<String, String>();
                params.put(KEY_USERNAME,username);
                params.put(KEY_PASSWORD,password);`enter code here`
                params.put(KEY_EMAIL, email);
                return params;
            }

        };

        RequestQueue requestQueue = Volley.newRequestQueue(this);
        requestQueue.add(stringRequest);
    }    

我看到了很多例子，但没有得到任何解决方案.

I saw the many examples but I did not get any solution.

推荐答案

我遇到了同样的问题.我一整天都筋疲力尽.最终，我发现了一个小错误，那就是我在参数中传递了一个空值.

I had the same issue. It drained my entire day. Finally, I Found the tiny error, which was that I was passing a null value in parameters.

检查是否在getParams()或JSON对象中将空值传递给服务器.如果是，那可能是问题所在.

Check if you are passing a null value to the server in getParams() or your JSON Object. If yes, that may be the problem.

这篇关于在排球库中给出com.android.volley.ServerError的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！