Question

我正在尝试运行此代码，但它会产生错误。

import json
import requests
import pprint
data = []
with open('data.txt') as o1:
  for line in o1:
    data.append(json.loads(line))
    print(data)
    print(" \n")
print(data)
url = 'http://xyz.abcdfx.in/devicedata'
body_json=json.dumps(data)
headers = {'Content-Type':'application/json'}
d = requests.post(url, data = body_json, headers=headers)
pprint.pprint(d.json())

显示

Value Error: No json object could be Decoded

我是编程新手，无法弄清问题是什么。

Answer 1

您似乎正在尝试逐行解析json文件，但json对象可能（通常是）跨越多行。您需要拥有整个文件才能解析它：

 with open('data.txt') as o1:
      data = json.loads(o1.read()) # read ALL the file and parse. no loops
 print(data)

Answer 2

我用这个解决了我的问题：

data =[]
with open('data.txt') as f:
   for line in f:
      data = json.loads(line)
      print(data)
      url = 'http://xyz.abcdfx.cn/devicedata'
      body_json=json.dumps(data)
      headers = {'Content-Type':'application/json'}
      d = requests.post(url, data = body_json, headers=headers)
      pprint.pprint(d.json())

从文本文件加载json

2 个答案: