.net 解析复杂的json数据

你先定义类，然后使用Gson的fromJson方法转换成类。 下面是我的代码： public class showapi_res_body { private cityInfo cityInfo = new cityInfo();  private f1 f1 = new f1();  @Override public String toString() { return "showapi_res_body [cityInfo=" + cityInfo.toString() + ", f1=" + f1.toString() + "]"; }  }  public class day_weather_pic { private int night_air_temperature = 19; private String night_weather = "多云"; @Override public String toString() { return "day_weather_pic [night_air_temperature=" + night_air_temperature + ", night_weather=" + night_weather + "]"; }  }  public class f1 { private String day="20150906"; private int day_air_temperature=3; private String day_weather= "晴"; private day_weather_pic day_weather_pic = new day_weather_pic(); @Override public String toString() { return "f1 [day=" + day + ", day_air_temperature=" + day_air_temperature + ", day_weather=" + day_weather + ", day_weather_pic=" + day_weather_pic.toString() + "]"; }  }  public class cityInfo {  private String c2 ="lanzhou"; private String c3 ="兰州"; @Override public String toString() { return "cityInfo [c2=" + c2 + ", c3=" + c3 + "]"; }  }  public class showapi { private int showapi_res_code = 0; private String showapi_res_error = ""; private showapi_res_body showapi_res_body = new showapi_res_body(); @Override public String toString() { return "showapi [showapi_res_code=" + showapi_res_code + ", showapi_res_error=" + showapi_res_error + ", showapi_res_body=" + showapi_res_body.toString() + "]"; }  }  public class test { public static void main(String[] args) { showapi anObject = new showapi();  Gson gson = new Gson(); String json = gson.toJson(anObject); System.out.println(json.toString());  showapi a = gson.fromJson(json, showapi.class);  System.out.println(a.toString()); } }  运行后输出的日志：  {"showapi_res_code":0,"showapi_res_error":"","showapi_res_body":{"cityInfo":{"c2":"lanzhou","c3":"兰州"},"f1":{"day":"20150906","day_air_temperature":3,"day_weather":"晴","day_weather_pic":{"night_air_temperature":19,"night_weather":"多云"}}}}  showapi [showapi_res_code=0, showapi_res_error=, showapi_res_body=showapi_res_body [cityInfo=cityInfo [c2=lanzhou, c3=兰州], f1=f1 [day=20150906, day_air_temperature=3, day_weather=晴, day_weather_pic=day_weather_pic [night_air_temperature=19, night_weather=多云]]]]

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