排球請求沒有收到

Question

在我的項目中，如果我用url添加參數，然後發出服務器正在接收的請求。但是如果我使用GET params方法，那麼請求不會被服務器接收。

成功的請求

public class MainActivity extends AppCompatActivity { 

    @Override 
    protected void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.activity_main); 
     final EditText name1=(EditText)findViewById(R.id.editText); 
     final EditText price1=(EditText)findViewById(R.id.editText2); 
     final EditText description1=(EditText)findViewById(R.id.editText3); 

     Button submit=(Button)findViewById(R.id.button); 


     submit.setOnClickListener(new View.OnClickListener() { 
      @Override 
      protected Object clone() throws CloneNotSupportedException { 
       return super.clone(); 
      } 

      @Override 
      public void onClick(View v) { 


       final String name=name1.getText().toString(); 
       final double price= Double.parseDouble(price1.getText().toString()); 
       final String description=description1.getText().toString(); 
       RequestQueue queue = Volley.newRequestQueue(MainActivity.this); 
       String url ="http://192.168.0.101/webservice/create_product.php?name=symphony&price=1000&description=from_android"; 
       StringRequest sr=new StringRequest(Request.Method.GET, url, new Response.Listener<String>() { 
        @Override 
        public void onResponse(String response) { 
         try { 
          JSONObject jo=new JSONObject(response); 
          Log.d("From Volley",+jo.getInt("success")+" "+jo.getString("message")); 
         } catch (JSONException e) { 
          e.printStackTrace(); 
         } 


        } 
       }, new Response.ErrorListener() { 
        @Override 
        public void onErrorResponse(VolleyError error) { 
         Log.e("From Volley", error.getMessage()); 

        } 
       }); 
       Log.d("From Volley",sr.getUrl()+" "+sr.toString()); 

       queue.add(sr); 

      } 
     }); 

    } 
} 

失敗請求

public class MainActivity extends AppCompatActivity { 

    @Override 
    protected void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.activity_main); 
     final EditText name1=(EditText)findViewById(R.id.editText); 
     final EditText price1=(EditText)findViewById(R.id.editText2); 
     final EditText description1=(EditText)findViewById(R.id.editText3); 

     Button submit=(Button)findViewById(R.id.button); 


     submit.setOnClickListener(new View.OnClickListener() { 
      @Override 
      protected Object clone() throws CloneNotSupportedException { 
       return super.clone(); 
      } 

      @Override 
      public void onClick(View v) { 


       final String name=name1.getText().toString(); 
       final double price= Double.parseDouble(price1.getText().toString()); 
       final String description=description1.getText().toString(); 
       RequestQueue queue = Volley.newRequestQueue(MainActivity.this); 
       String url ="http://192.168.0.101/webservice/create_product.php"; 
       StringRequest sr=new StringRequest(Request.Method.GET, url, new Response.Listener<String>() { 
        @Override 
        public void onResponse(String response) { 
         try { 
          JSONObject jo=new JSONObject(response); 
          Log.d("From Volley",+jo.getInt("success")+" "+jo.getString("message")); 
         } catch (JSONException e) { 
          e.printStackTrace(); 
         } 


        } 
       }, new Response.ErrorListener() { 
        @Override 
        public void onErrorResponse(VolleyError error) { 
         Log.e("From Volley", error.getMessage()); 

        } 
       }){ 
        @Override 
        protected Map<String, String> getParams() throws AuthFailureError { 
         Map<String,String> params = new HashMap<String, String>(); 
         params.put("name",name); 
         params.put("price", String.valueOf(price)); 
         params.put("description",description); 
         return params; 

        } 

       }; 

       Log.d("From Volley",sr.getUrl()+" "+sr.toString()); 

       queue.add(sr); 

      } 
     }); 

    } 
} 

Answer 1

在這裏，您使用您之前建立的URL請求做出GET方法，getParams()時使用的請求方法是POST ...

建立GET的URL如下

Uri.Builder builder = new Uri.Builder(); 
builder.scheme("http") 
.authority("192.168.0.101") 
.appendPath("webservice") 
.appendPath("create_product.php") 
.appendQueryParameter("name", name) 
.appendQueryParameter("price", String.valueOf(price)) 
.appendQueryParameter("description", description); 

String url = builder.build().toString(); 

Answer 2

StringRequest sr=new StringRequest(Request.Method.GET, url, new Response.Listener<String>() { 
} 

變化

StringRequest sr=new StringRequest(Request.Method.POST, url, new Response.Listener<String>() { 
}