Php 截击发送参数并获得响应

我有一个应用程序，我使用

phpapi

从

mysql

插入和检索gps数据。我在发送或获取数据方面没有问题，我正在努力解决的问题是，当我尝试将参数发送到我的

api

（例如用户id）时，我得到了

错误数据，这意味着我在请求时做了一些错误的事情。我正在尝试发送
用户id
，然后将数据检索到与该id相关联的
列表视图中。我看到了一些使用
JsonArrayRequest
的示例，这可能是我应该使用的，但我在尝试使用Post方法和
参数实现它时不断出错

public void test( final String id_user){


        RequestQueue requestQueue = 
Volley.newRequestQueue(MeusTrilhos.this);
        StringRequest stringRequest = new StringRequest(Request.Method.POST, 
urlget, new Response.Listener<String>() {
            @Override
            public void onResponse(String response) {
                int count = response.length();

                try {
                    for(int i = 0; i < count; i++){
                    JSONObject jo = new JSONObject(response);

                    Trilhos tri = new Trilhos();


                    tri.setId(jo.getInt("id"));
                    tri.setTitulo(jo.getString("titulo"));
                    tri.setId_user(jo.getInt("id_user"));
                    tri.setDificuldade(jo.getString("dificuldade"));
                    TrilhosList.add(tri);

                    }

                } catch (JSONException e) {
                    e.printStackTrace();
                    Toast.makeText(MeusTrilhos.this, "error data", 
Toast.LENGTH_SHORT).show();
                    adapter.notifyDataSetChanged();
                }
            }

            }, new Response.ErrorListener() {
            @Override
            public void onErrorResponse(VolleyError error) {
                Log.i("HttpError", "erro" + error);
            }

        }){
            @Override
            protected Map<String, String> getParams() throws 
AuthFailureError {
                    Map<String, String> stringMap = new HashMap<>();

                    stringMap.put("id_user", id_user);


                    return stringMap;

            }
        };

        requestQueue.add(stringRequest);
    }
}

错误日志

at org.json.JSON.typeMismatch(JSON.java:111)
false mManagedProfileInQuietMode: false mKeyguardVisible: false 
mCurrentUserId:0 mCurrentProfileId:0 mSecondSpaceStatusIconVisible: true 
showIcon:false
W/System.err:     at org.json.JSONObject.<init>(JSONObject.java:160)
at org.json.JSONObject.<init>(JSONObject.java:173)
trilhosportugal.MeusTrilhos$1.onResponse(MeusTrilhos.java:135)
trilhosportugal.MeusTrilhos$1.onResponse(MeusTrilhos.java:128)

org.json.json.typeMismatch（json.java:111）上的

false mManagedProfileInQuietMode:false mKeyguardVisible:false
mCurrentUserId:0 mCurrentProfileId:0 mSecondSpaceStatusIconVisible:true
showIcon:false
W/System.err:org.json.JSONObject（JSONObject.java:160）
位于org.json.JSONObject（JSONObject.java:173）
Trilhosportagulate.MeusTrilhos$1.onResponse（MeusTrilhos.java:135）
Trilhosplugate.MeusTrilhos$1.onResponse（MeusTrilhos.java:128）
解决了它，尝试检索jsonobject而不是jsonarray

public void test2(final String id_user){
RequestQueue requestQueue = Volley.newRequestQueue(MeusTrilhos.this);
StringRequest stringRequest=new StringRequest(Request.Method.POST, urlget,
        new Response.Listener<String>() {
            @Override
            public void onResponse(String response) {
                System.out.println(response);
                Toast.makeText(MeusTrilhos.this, "boa entrou", 
Toast.LENGTH_LONG).show();
                try {
                    JSONArray array=new JSONArray(response);
                    for (int i=0; i < array.length(); i++) {
                        JSONObject jo=array.getJSONObject(i);

                        Trilhos tri = new Trilhos();


                        tri.setId(jo.getInt("id"));
                        tri.setTitulo(jo.getString("titulo"));
                        tri.setId_user(jo.getInt("id_user"));
                        tri.setDificuldade(jo.getString("dificuldade"));
                        TrilhosList.add(tri);

                    }
                } catch (JSONException e) {
                    e.printStackTrace();
                }

                adapter.notifyDataSetChanged();

            }
        },
        new Response.ErrorListener() {
            @Override
            public void onErrorResponse(VolleyError error) {
                Toast.makeText(MeusTrilhos.this, "erro erro", 
Toast.LENGTH_LONG).show();
            }
        }) {
    @Override
    protected Map<String, String> getParams() {
        Map<String, String> params=new HashMap<String, String>();

        params.put("id_user", id_user);


        return params;
    }

};
requestQueue.add(stringRequest);
}

public void test2（最终字符串id\u用户）{
RequestQueue RequestQueue=Volley.newRequestQueue（MeusTrilhos.this）；
StringRequest StringRequest=新的StringRequest（Request.Method.POST，urlget，
新的Response.Listener（）{
@凌驾
公共void onResponse（字符串响应）{
System.out.println（响应）；
Toast.makeText（MeusTrilhos.this，“boa entrou”，
Toast.LENGTH_LONG）.show（）；
试一试{
JSONArray数组=新的JSONArray（响应）；
对于（int i=0；i
使用固定id测试php端，以确保错误不在服务器端。这表明android端存在问题…请使用postman发布错误logsIve测试php端，我得到如下回报：[{“id”：68，“titulo”：“teste cati”，“id_user”：6，“Deficuldade”：“Facil”}]发布错误日志我用日志更新问题，但我不知道如何正确格式化日志响应是json数组而不是对象…你能发布json响应吗
public void test2(final String id_user){
RequestQueue requestQueue = Volley.newRequestQueue(MeusTrilhos.this);
StringRequest stringRequest=new StringRequest(Request.Method.POST, urlget,
        new Response.Listener<String>() {
            @Override
            public void onResponse(String response) {
                System.out.println(response);
                Toast.makeText(MeusTrilhos.this, "boa entrou", 
Toast.LENGTH_LONG).show();
                try {
                    JSONArray array=new JSONArray(response);
                    for (int i=0; i < array.length(); i++) {
                        JSONObject jo=array.getJSONObject(i);

                        Trilhos tri = new Trilhos();


                        tri.setId(jo.getInt("id"));
                        tri.setTitulo(jo.getString("titulo"));
                        tri.setId_user(jo.getInt("id_user"));
                        tri.setDificuldade(jo.getString("dificuldade"));
                        TrilhosList.add(tri);

                    }
                } catch (JSONException e) {
                    e.printStackTrace();
                }

                adapter.notifyDataSetChanged();

            }
        },
        new Response.ErrorListener() {
            @Override
            public void onErrorResponse(VolleyError error) {
                Toast.makeText(MeusTrilhos.this, "erro erro", 
Toast.LENGTH_LONG).show();
            }
        }) {
    @Override
    protected Map<String, String> getParams() {
        Map<String, String> params=new HashMap<String, String>();

        params.put("id_user", id_user);


        return params;
    }

};
requestQueue.add(stringRequest);
}