替换 JSON 文件中的字符串

Question

"cassandra": {
    "host": "1.1.1.1",
    "portNo": "9042",
    "keyspace": "good"
},
"postgres": {
    "host": "2.2.2.2",
    "portNo": "5432",
    "database": "dude",
    "username": "root",
    "password": "something"
}

这是 json 文件的一部分。我需要使用脚本编辑具有两个不同 IP 的主机部分。大家有什么想法

Answer 1

可以使用Json python包

import json

my_bytes_value = response.content
my_json = my_bytes_value.decode('utf8')
jsonResponse = json.loads(my_json)
resultCount = jsonResponse["cassandra"]

Answer 2

使用jq获取正确的json（上面的数据被{}包围）：

$ jq '.|.cassandra.host="foo"' file.json
{
  "cassandra": {
    "host": "foo",
    "portNo": "9042",
    "keyspace": "good"
  },
  "postgres": {
    "host": "2.2.2.2",
    "portNo": "5432",
    "database": "dude",
    "username": "root",
    "password": "something"
  }
}