2回答

• 

  慕设计2162063

  2021-01-25 21:06:26

  已采纳

  购买的免费的api和视频上的一致就不会有这个问题,如果一定要变url的话就把jar包里用到的文件复制出来,再修改url.
  

  2 2

  小楼倚月听微... 回复朱智琳

  jar包里的文件是只读的，问一下怎么改呢

  2021-02-15 23:23:44

  共 2 条回复 >

• 

  慕运维2932940

  2022-05-08 17:18:51

  可以新创建一个temp_WeatherUtilsImpl.java文件,来重写WeatherUtilsImpl类,此处仅以24h查询为例:
  
  package com.imooc.weather;
  
  import com.google.gson.FieldNamingPolicy;
  import com.google.gson.Gson;
  import com.google.gson.GsonBuilder;
  import com.google.gson.reflect.TypeToken;
  import com.imooc.weather.impl.WeatherUtilsImpl;
  import ognl.Ognl;
  import ognl.OgnlContext;
  import ognl.OgnlException;
  import okhttp3.Call;
  import okhttp3.OkHttpClient;
  import okhttp3.Request;
  import okhttp3.Response;
  
  import java.io.IOException;
  import java.util.ArrayList;
  import java.util.List;
  import java.util.Map;
  
  public class temp_WeatherUtilsImpl extends WeatherUtilsImpl {
      //重载或重写WeatherUtilsImpl.java
      private <T> T getValue(Object map, String path, Class<T> clazz) {
          try {
              OgnlContext context = new OgnlContext();
              context.setRoot(map);
              T value = (T) Ognl.getValue(path, context, context.getRoot());
              return value;
          } catch (Exception e) {
              throw new RuntimeException(e);
          }
      }
      public List<HourWeather> w24h(String appCode, String area) {
          List<HourWeather> resultList = new ArrayList<HourWeather>();
          try {
              //新建查询请求
              OkHttpClient client = new OkHttpClient();
              Request request = new Request.Builder()
                      .get()
                      .url("https://ali-weather.showapi.com/hour24?area=" + area)
                      .header("Authorization", "APPCODE " + appCode)
                      .build();
              Call call = client.newCall(request);
              Response response = call.execute();
              Gson gson = new GsonBuilder()
                      .setFieldNamingPolicy(FieldNamingPolicy.LOWER_CASE_WITH_UNDERSCORES)
                      .create();
              //获取服务器返回数据
              String resBody = response.body().string();
              Map result = gson.fromJson(resBody, new TypeToken<Map>() {
              }.getType());
              //包装为对象集合
              List<Map<String, String>> hourList = this.getValue(result, "showapi_res_body.hourList", ArrayList.class);
              //如果没有找到对应地区天气数据，返回空的List列表
              if(hourList == null || hourList.size() == 0){
                  return new ArrayList<HourWeather>();
              }
              for (Map<String, String> hour : hourList) {
                  HourWeather hourWeather = new HourWeather();
                  hourWeather.setYear(hour.get("time").substring(0, 4));
                  hourWeather.setMonth(hour.get("time").substring(4, 6));
                  hourWeather.setDay(hour.get("time").substring(6, 8));
                  hourWeather.setHour(hour.get("time").substring(8, 10));
                  hourWeather.setWindDirection(hour.get("wind_direction"));
                  hourWeather.setWindPower(hour.get("wind_power"));
                  hourWeather.setWeather(hour.get("weather"));
                  hourWeather.setTemperature(hour.get("temperature"));
                  resultList.add(hourWeather);
              }
  
          } catch (Exception e) {
              throw new RuntimeException(e);
          }
          return resultList;
  
      }
  
      public static void main(String[] args) throws IOException, OgnlException {
          List<DayWeather> list2 = new WeatherUtilsImpl().w3d("28a8e0cdea484fdd9cba138a72bc1778", "DASDSADSA");
          System.out.println(list2);
      }
  }
  
  这是Application.java:
  
  package com.imooc.weather;
  
  import com.imooc.weather.impl.WeatherUtilsImpl;
  
  import java.util.List;
  import java.util.Scanner;
  
  public class Application {
      public static void main(String[] args) {
          System.out.println("查询最近天气预报");
          System.out.println("输入1: 查询未来24小时天气预报");
          System.out.println("输入2: 查询未来3天天气预报");
          System.out.println("输入3: 查询未来7天天气预报");
          System.out.print("请输入您的选择: ");
          Scanner scanner = new Scanner(System.in);
          int i = scanner.nextInt();
          System.out.println("用户输入数字: " + i);
  
          if(i == 1){
              System.out.print("请输入城市名称查询未来24小时天气预报: ");
              String city = scanner.next();
              temp_WeatherUtilsImpl weatherUtils = new temp_WeatherUtilsImpl();
              List<HourWeather> weatherList1 = weatherUtils.w24h("5f94543d72c44591bf4897e0f3d622ea", city);
              System.out.println(weatherList1);
          }
      }
  }

  
  

  0 0