20210219API request.post(),data和json的却别

待整理，参考文档https://blog.csdn.net/zhubaojay/article/details/106915881?utm_medium=distribute.pc_relevant.none-task-blog-baidujs_title-3&spm=1001.2101.3001.4242

区别在headers种content-type

form形式表单传参

验证3种上传file的方法：

这种会报错：data mast not be string
def handlePost(url,**kwargs):
    data_json=kwargs.get('data')
    if not isinstance(kwargs.get('data'),str):
        data_json=json.dumps(kwargs.get('data'))
    headers=kwargs.get('headers')
    rep=requests.post(url,data=data_json.encode("utf-8"),headers=headers,params=kwargs.get('params'), files=kwargs.get('files'), timeout=(1000,1000),verify=False)
    return rep

def handlePost(url, **kwargs):
    data = kwargs.get('data')
    if type(data).__name__ == 'dict':
        data = json.dumps(kwargs.get('data'))
    else:
        data = kwargs.get('data')
    headers = kwargs.get('headers')
    # print("handlePost")
    # print(url)
    # print(data)
    # print(kwargs.get('params'))
    # print(kwargs.get('files'))
    # print(headers)
    # rep = requests.post(url, data=data_json.encode("utf-8"), headers=headers, params=kwargs.get('params'), files=kwargs.get('files'), timeout=(1000,1000),verify=False)
    rep = requests.post(url, data=data, headers=headers, params=kwargs.get('params'), files=kwargs.get('files'), timeout=(1000, 1000), verify=False)
    return rep

def handlePost(url,**kwargs):
    data_json=kwargs.get('data')
    if not isinstance(kwargs.get('data'),str):
        # data_json=json.dumps(kwargs.get('data'))
        data_json=kwargs.get('data')
    headers=kwargs.get('headers')
    # rep=requests.post(url,data=data_json.encode("utf-8"),headers=headers,params=kwargs.get('params'), files=kwargs.get('files'), timeout=(1000,1000),verify=False)
    rep=requests.post(url,json=data_json,headers=headers,params=kwargs.get('params'), files=kwargs.get('files'), timeout=(1000,1000),verify=False)
    return rep

总结，对于body只有1个参数_file:xxxobj，以下场景均可成功（虽然不知道为什么，先用起来，以后再做研究，如果有知道的大神，烦请教教我，谢谢）：

1. 不指定headers.content-type,body直接使用files=file，不传入data和json
2. 不指定headers.content-type，body传入{……，data=__dict,files=file,……}
3. 不指定headers.content-type，body传入{……，json=__dict,files=file,……}

files = [("_file", open(image_path, 'rb'))]