有没有一种简单的方法来估算json对象的大小? [英] is there an easy way to estimate size of a json object?

问题描述

我正在开发一个安全服务，该服务将返回权限列表，并且我正在尝试估计json响应对象的大小.这是一段示例数据:

I'm working on a security service that will return a list of permissions and I'm trying to estimate the size of the json response object. Here's a piece of sample data:

ID = 123 VariableName = CanAccessSomeContent

ID=123 VariableName=CanAccessSomeContent

我正在寻找一种简单的方法来估计1500行时json响应对象的大小.是否可以使用在线估算工具或其他一些技术轻松获得粗略的估算值?

I'm looking for an easy way to estimate what size of the json response object will be with 1500 rows. Is there an online estimation tool or some other technique I can use to easily get a rough size estimate?

推荐答案

使用Python，您可以通过创建字典来估计大小，也可以只制作一个...

Using Python you can estimate the size by creating the dictionary or just make one...

import json
import os
import sys

dict = {}

for a in range(0, 1500):
    dict[a] = {'VariableName': 'CanAccessSomeContent'}

output = json.dumps(dict, indent = 4)   

print ("Estimated size: " + str(sys.getsizeof(output) / 1024) + "KB")

with open( "test.json", 'wb') as outfile:
    outfile.write(output)

print ("Actual size: " + str(os.path.getsize('test.json') / 1024) + "KB")

输出:

Estimated size: 100KB
Actual size: 99KB

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