Python JMESPath库轻松操作JSON进行数据查询方法实例

pip install jmespath

import json
import jmespath

# 示例JSON数据
data = {
    "name": "John",
    "age": 30,
    "address": {
        "street": "123 Main St",
        "city": "Anytown",
        "state": "CA",
        "zip": "12345"
    },
    "phone_numbers": ["123-456-7890", "987-654-3210"]
}

# 查询name的值
name = jmespath.search("name", data)
print("Name:", name)  # 输出: Name: John

# 查询age的值
age = jmespath.search("age", data)
print("Age:", age)  # 输出: Age: 30

# 查询address中的street的值
street = jmespath.search("address.street", data)
print("Street:", street)  # 输出: Street: 123 Main St

# 查询phone_numbers中的第一个电话号码的值
first_phone = jmespath.search("phone_numbers[0]", data)
print("First Phone:", first_phone)  # 输出: First Phone: 123-456-7890

{
  "employees": [
    {"name": "John"},
    {"name": "Jane"}
  ]
}

length(employees)

{
  "employees": [
    {"name": "John", "age": 30},
    {"name": "Jane", "age": 25}
  ]
}

get(employees, 1)

{
  "employees": [{"name": "John"}, {"name": "Jane"}]
}

contains(employees, {"name": "Jane"})

{
  "employees": [{"name": "John", "age": 30}, {"name": "Jane", "age": 25}]
}

keys(employees)