Android Retrofit将变量动态设置为Route

Question

我尝试在程序包Route中设置一个定义为静态变量的动态变量，但我不了解它如何与Retrofit一起使用。

导入静态de.package.tradilianz.DashboardRetailer.retailerid;

公共接口APIInterface {

@Headers("Content-Type: application/json")
@POST("retailers/{param}/products")
Call<Product> createProduct(@Body Product product @Param("param") id = retailerid);

}

如何正确设置{param}？我以为我可以将Retailerid编写为静态String并导入到我的Interface Class中，然后将其声明为@Param，但它无法正常工作。我想说id = retailerId应该在@POST（“ retailers / {param} / products”}

中设置

我还尝试设置@POST（“ retailers /” + retailerid +“ / products”），但变量必须为常量。好吧，我在活动中得到了变量Retailerid，但我没有任何常数。

我的活动分类：

public class RetailerProductActivity extends AppCompatActivity {

    private SharedPreferences prefs;
    public static String id;
    APIInterface apiInterface;
    Context context;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_retailer_product);
        context = this;
        prefs = PreferenceManager.getDefaultSharedPreferences(getApplicationContext());
        //Get retailerIdfrom SharedPreference
        String serializedDataFromPreference = prefs.getString("RetailerResponseObject", null);
        Retailer retailer = Retailer.create(serializedDataFromPreference);
        id = retailer.getId();
    }

    public void onClickProduct(View v){
        apiInterface = APIClient.getClient(ipAddress).create(APIInterface.class);

        Product product = new Product("994", "Marlboro", "Marlborolight", 8.5, "Tabakwaren",
                "1");
        // POST  product
        Call<Product> call1 = apiInterface.createProduct(product);
        call1.enqueue(new Callback<Product>() {
            @Override
            public void onResponse(Call<Product> call, Response<Product> response) {
                if(response.isSuccessful()){
                    try{
                        Product prodct1 = response.body();
                        Log.w("Der Response body",prodct1.toString() );

                        //speichern in sharedPrefence fehlt
                    }catch (NullPointerException e){
                        e.printStackTrace();
                    }
                }else{
                    Toast.makeText(context, "Erreiche den Server nicht :/! Wurde der Server gestartet?",Toast.LENGTH_SHORT).show();
                }
            }

            @Override
            public void onFailure(Call<Product> call,Throwable t) {
                call.cancel();
                Log.w("onResponse: ", "POST Response probleme", t.getCause());
            }
        });

    }
}

[您有意见的人请帮助

Answer 1

您可以这样创建动态网址：

@Headers("Content-Type: application/json")
@POST
Call<Product> createProduct(@Url String URL, @Body Product product);

Answer 2

您需要使用Path而不是Param

@Headers("Content-Type: application/json")
@POST("retailers/{param}/products")
Call<Product> createProduct(@Body Product product @Path("param") String value);

// Inside you onClickProduct just pass your value.
Call<Product> call1 = apiInterface.createProduct(product,"Put you Value Here");