第一步、将图片转为str

image='1.jpg'
print(type(image))
def imageToStr(image):with open(image,'rb') as f:image_byte=base64.b64encode(f.read())print(type(image_byte))image_str=image_byte.decode('ascii') #byte类型转换为strprint(type(image_str))return image_str
image1=imageToStr(image)
print(type(image1))#输出结果
<class 'str'>
<class 'bytes'>
<class 'str'>
<class 'str'>

第二步、存入json数据：

data = {"engineeringdata": {"date"：12,"value": "59.3;98.5","image":image1}
}

 第三歩、将json中数据取出转化为图片：

def strToImage(str,filename):image_str= str.encode('ascii')image_byte = base64.b64decode(image_str)image_json = open(filename, 'wb')image_json.write(image_byte)  #将图片存到当前文件的fileimage文件中image_json.close()file_address = "./fileimage/" + data['engineeringdata']['date'] + r".jpg"
strToImage(data['engineeringdata']['image'],file_address)