Gson解析比较复杂的json数据
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就是这种接口传来的数据,数据太杂了,如何选取几个有用的数据单个解析出来??用Gson。
麻烦大牛点一下,给下代码更好,感谢。
"showapi_res_code": 0,
"showapi_res_error": "",
"showapi_res_body":
"cityInfo":
"c2": "lanzhou",
"c3": "兰州",
,
"f1":
"day": "20150906",
"day_air_temperature": "31",
"day_weather": "晴",
"day_weather_pic":
"night_air_temperature": "19",
"night_weather": "多云",
,
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]]]]本回答被提问者采纳
关于解析各种复杂json
参考技术A def dict_generator(indict, pre=None):pre = pre[:] if pre else []
if isinstance(indict, dict):
for key, value in indict.items():
if isinstance(value, dict):
if len(value) == 0:
yield pre + [key, '']
else:
for d in dict_generator(value, pre + [key]):
yield d
elif isinstance(value, list):
if len(value) == 0:
yield pre + [key, '[]']
else:
for v in value:
for d in dict_generator(v, pre + [key]):
yield d
elif isinstance(value, tuple):
if len(value) == 0:
yield pre + [key, '()']
else:
for v in value:
for d in dict_generator(v, pre + [key]):
yield d
else:
yield pre + [key, value]
else:
yield indict
def print_keyvalue_by_key(input_json, key):
key_value = ""
if isinstance(input_json, dict):
for json_result in input_json.values():
if key in input_json.keys():
key_value = input_json.get(key)
else:
print_keyvalue_by_key(json_result, key)
elif isinstance(input_json, list):
for json_array in input_json:
print_keyvalue_by_key(json_array, key)
if key_value != "":
for value in key_value:
if "contents" == key:
s = value[:-1].lstrip("[")
json_loads = json.loads(s)
json_dumps = json.dumps(json_loads)
return json_dumps
else:
list_add.append(value)
return list_add
def get_all_field(data,key,params_key):
"""递归解析json
:param data: json数据
:return: key的值和params_key的值"""
if isinstance(data,dict):
for k, vin data.items():
if key == kand params_key in data:
yield v,data[params_key]
elif k !=params_key:
for a, bin get_all_field(v,key,params_key):
yield a, b
elif isinstance(data,list):
for v in data:
for a, b in get_all_field(v,key,params_key):
yield a, b
if __name__ =='__main__':
for a,b in get_all_field(json, filed,param):
print(a,b)
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