python制造有序中文json串的方法

先用OrderedDict方法把dict转化成有序dict

from collections import OrderedDict

data_raw={"appCode":appcode.upper(),"serviceName":"服务5","serviceUrl":"s3","serviceDesc":"备注","version":"v1","requestMethod":"GET"}
data=OrderedDict()
data['appCode']=data_raw['appCode']
data['serviceName']=data_raw['serviceName']
data['serviceUrl']=data_raw['serviceUrl']
data['serviceDesc']=data_raw['serviceDesc']
data['version']=data_raw['version']
data['requestMethod']=data_raw['requestMethod']
然后转化成json串，默认用json方法转化时会自动被转成unicode，所以需要加上ensure_ascii = False，默认字符集是

encoding='utf-8'，所以如果字符编码不同，例如gbk，有必要加encoding='gbk'之类的参数

data= json.dumps(data, ensure_ascii = False)
如果要使用requests包请求，记得在header里加上'charset':'utf-8'

然后就可以请求成功了