如何在JSON @Body Retrofit Android中包含"param“名称

public class ParamModel {
    @SerializedName("param")
    private String param;

    public String getParam() {
        return param;
    }

    public void setParam(String param) {
        this.param = param;
    }
}

public interface ApiService {
    @POST("your_endpoint")
    Call<ResponseBody> postData(@Body ParamModel paramModel);
}

Retrofit retrofit = new Retrofit.Builder()
        .baseUrl("http://example.com/api/")
        .addConverterFactory(GsonConverterFactory.create())
        .build();

ApiService apiService = retrofit.create(ApiService.class);

ParamModel paramModel = new ParamModel();
paramModel.setParam("your_param_value");

Call<ResponseBody> call = apiService.postData(paramModel);

call.enqueue(new Callback<ResponseBody>() {
    @Override
    public void onResponse(Call<ResponseBody> call, Response<ResponseBody> response) {
        if (response.isSuccessful()) {
            // 处理成功响应
        } else {
            // 处理错误响应
        }
    }

    @Override
    public void onFailure(Call<ResponseBody> call, Throwable t) {
        // 处理请求失败
    }
});