无法将thingspeak json传递给android
我读取了bmp180的传感器读数,并将其传递给thingspeak,然后显示了图形。现在我想将thingspeak的json发送到我的android手机。但是thingspeak数据中的json没有发送到我的手机中。如果有任何帮助,我们将不胜感激。以下是我的代码:无法将thingspeak json传递给android,android,json,Android,Json,我读取了bmp180的传感器读数,并将其传递给thingspeak,然后显示了图形。现在我想将thingspeak的json发送到我的android手机。但是thingspeak数据中的json没有发送到我的手机中。如果有任何帮助,我们将不胜感激。以下是我的代码: public class MainActivity extends Activity { private static final String PATIENTS_LIST_URL = "http://thingspeak.com/
public class MainActivity extends Activity {
private static final String PATIENTS_LIST_URL = "http://thingspeak.com/channels/201342/field/1.json";
ArrayList<HashMap<String, String>> patientList;
Button button;
TextView textview;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
textview=(TextView) findViewById(R.id.textView);
button = (Button) findViewById(R.id.button_get_string);
button.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
GetJsonData();
}
});
}
private void GetJsonData() {
final JsonObjectRequest jsonObjReq = new JsonObjectRequest(Request.Method.POST,
PATIENTS_LIST_URL, null, new Response.Listener<JSONObject>() {
@Override
public void onResponse(JSONObject response) {
// Toast.makeText(MainActivity.this, response.toString(), Toast.LENGTH_SHORT).show();
textview.setText(response.toString());
try {
JSONArray data = response.getJSONArray("feeds");
JSONObject eachData = data.getJSONObject(0);
String address=eachData.getString("field2");
// Toast.makeText(getApplicationContext(),
// "field1::"+address, Toast.LENGTH_SHORT).show();
} catch (JSONException e) {
e.printStackTrace();
}
}
},
new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
error.printStackTrace();
// Snack(error.getMessage());
}
}
) {
@Override
protected Map<String, String> getParams() throws AuthFailureError {
Map<String,String>map = new HashMap<String,String>();
return map;
}
};
RequestQueue requestQueue = Volley.newRequestQueue(this);
requestQueue.add(jsonObjReq);
}
}
公共类MainActivity扩展活动{
私有静态最终字符串PATIENTS\u LIST\u URL=”http://thingspeak.com/channels/201342/field/1.json";
ArrayList患者列表;
按钮;
文本视图文本视图;
@凌驾
创建时受保护的void(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
textview=(textview)findViewById(R.id.textview);
按钮=(按钮)findViewById(R.id.button\u get\u字符串);
setOnClickListener(新视图.OnClickListener(){
@凌驾
公共void onClick(视图){
GetJsonData();
}
});
}
私有void GetJsonData(){
final JsonObjectRequest JSONObjectReq=新的JsonObjectRequest(Request.Method.POST,
患者列表URL,空,新响应。侦听器(){
@凌驾
公共void onResponse(JSONObject响应){
//Toast.makeText(MainActivity.this,response.toString(),Toast.LENGTH_SHORT.show();
setText(response.toString());
试一试{
JSONArray data=response.getJSONArray(“提要”);
JSONObject eachData=data.getJSONObject(0);
字符串地址=eachData.getString(“字段2”);
//Toast.makeText(getApplicationContext(),
//字段1::“+地址,Toast.LENGTH_SHORT).show();
}捕获(JSONException e){
e、 printStackTrace();
}
}
},
新的Response.ErrorListener(){
@凌驾
公共无效onErrorResponse(截击错误){
错误。printStackTrace();
//零食(error.getMessage());
}
}
) {
@凌驾
受保护的映射getParams()引发AuthFailureError{
Mapmap=新的HashMap();
返回图;
}
};
RequestQueue RequestQueue=Volley.newRequestQueue(this);
add(jsonObjReq);
}
}
字段2
不存在于Json响应的提要部分
试着改变
String address=eachData.getString(“field2”)代码>
到
String address=eachData.getString(“field1”)代码>
从URL中截短的响应以供参考:
{
"channel":{
"id":201342,
"name":"Weather Monitoring Station",
"description":"The channel provides live weather information of the city such as temperature and atmospheric pressure.",
"latitude":"0.0",
"longitude":"0.0",
"field1":"Temperature",
"field2":"Pressure",
"created_at":"2016-12-09T08:32:45Z",
"updated_at":"2017-02-10T15:46:27Z",
"last_entry_id":371
},
"feeds":[
{
"created_at":"2017-01-26T07:33:03Z",
"entry_id":272,
"field1":"29.57"
},
{
"created_at":"2017-01-26T07:33:25Z",
"entry_id":273,
"field1":"29.61"
}
....
]
}
field2
不存在于Json响应的提要部分
试着改变
String address=eachData.getString(“field2”)代码>
到
String address=eachData.getString(“field1”)代码>
从URL中截短的响应以供参考:
{
"channel":{
"id":201342,
"name":"Weather Monitoring Station",
"description":"The channel provides live weather information of the city such as temperature and atmospheric pressure.",
"latitude":"0.0",
"longitude":"0.0",
"field1":"Temperature",
"field2":"Pressure",
"created_at":"2016-12-09T08:32:45Z",
"updated_at":"2017-02-10T15:46:27Z",
"last_entry_id":371
},
"feeds":[
{
"created_at":"2017-01-26T07:33:03Z",
"entry_id":272,
"field1":"29.57"
},
{
"created_at":"2017-01-26T07:33:25Z",
"entry_id":273,
"field1":"29.61"
}
....
]
}
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