jsonpath_rw for Python - 解析特定键

Question

我正在进行 API 测试。所以我有一些回应 json。我想从中获取所有 "firstName"。为此，我使用了 jsonpath_rw 工具。但是在解析过程中我得到了很多我不需要的额外信息。

这是我的回复：

"_embedded": {
"customer": [
{
"firstName": "Eve",
"lastName": "Berger",
"username": "Eve_Berger",
"id": "57a98d98e4b00679b4a830af",
"_links": {
"addresses": {
"href": "http://user/customers/57a98d98e4b00679b4a830af/addresses"
},
"cards": {
"href": "http://user/customers/57a98d98e4b00679b4a830af/cards"
},
"customer": {
"href": "http://user/customers/57a98d98e4b00679b4a830af"
},
"self": {
"href": "http://user/customers/57a98d98e4b00679b4a830af"
}
}
},
{
"firstName": "User",
"lastName": "Name",
"username": "user",
"id": "57a98d98e4b00679b4a830b2",
"_links": {
"addresses": {
"href": "http://user/customers/57a98d98e4b00679b4a830b2/addresses"
},
"cards": {
"href": "http://user/customers/57a98d98e4b00679b4a830b2/cards"
},
"customer": {
"href": "http://user/customers/57a98d98e4b00679b4a830b2"
},
"self": {
"href": "http://user/customers/57a98d98e4b00679b4a830b2"
}
}
},
{
"firstName": "TestName",
"lastName": "TestSurname",
"username": "test12",
"id": "5cf7f4bcee11cb0001ecdb07",
"_links": {
"addresses": {
"href": "http://user/customers/5cf7f4bcee11cb0001ecdb07/addresses"
},
"cards": {
"href": "http://user/customers/5cf7f4bcee11cb0001ecdb07/cards"
},
"customer": {
"href": "http://user/customers/5cf7f4bcee11cb0001ecdb07"
},
"self": {
"href": "http://user/customers/5cf7f4bcee11cb0001ecdb07"
}
}
}
]
}
}

我希望解析所有 "firstName" 值并只看到这样的结果：["Eve"、"User"、"TestName"] 当我在这里 (http://jsonpath.herokuapp.com) 和我的 json 尝试它并使用路径“$..firstName”时，它工作正常。但在我的 Python 代码中，它看起来不太好，并且有大量额外数据的如此大的响应。有人可以帮我解决我必须解决的问题吗？

因为现在我解析后的响应看起来与我预期的不一样。我只想看到这三个名字（"Eve"、"User"、"TestName"），但这是我现在拥有的：

  DatumInContext(value='Eve',
  path=Fields('firstName'),
  context=DatumInContext(value={
    'firstName': 'Eve',
    'lastName': 'Berger',
    'username': 'Eve_Berger',
    'id': '57a98d98e4b00679b4a830af',
    '_links': {
      'addresses': {
        'href': 'http://user/customers/57a98d98e4b00679b4a830af/addresses'
      },
      'cards': {
        'href': 'http://user/customers/57a98d98e4b00679b4a830af/cards'
      },
      'customer': {
        'href': 'http://user/customers/57a98d98e4b00679b4a830af'
      },
      'self': {
        'href': 'http://user/customers/57a98d98e4b00679b4a830af'
      }
    }
  },
  path=<jsonpath_rw.jsonpath.Indexobjectat0x10620a5f8>,
  context=DatumInContext(value=[
    {
      'firstName': 'Eve',
      'lastName': 'Berger',
      'username': 'Eve_Berger',
      'id': '57a98d98e4b00679b4a830af',
      '_links': {
        'addresses': {
          'href': 'http://user/customers/57a98d98e4b00679b4a830af/addresses'
        },
        'cards': {
          'href': 'http://user/customers/57a98d98e4b00679b4a830af/cards'
        },
        'customer': {
          'href': 'http://user/customers/57a98d98e4b00679b4a830af'
        },
        'self': {
          'href': 'http://user/customers/57a98d98e4b00679b4a830af'
        }
      }
    },
    {
      'firstName': 'User',
      'lastName': 'Name',
      'username': 'user',
      'id': '57a98d98e4b00679b4a830b2',
      '_links': {
        'addresses': {
          'href': 'http://user/customers/57a98d98e4b00679b4a830b2/addresses'
        },
        'cards': {
          'href': 'http://user/customers/57a98d98e4b00679b4a830b2/cards'
        },
        'customer': {
          'href': 'http://user/customers/57a98d98e4b00679b4a830b2'
        },
        'self': {
          'href': 'http://user/customers/57a98d98e4b00679b4a830b2'
        }
      }
    },
    {
      'firstName': 'TestName',
      'lastName': 'TestSurname',
      'username': 'test12',
      'id': '5cf7f4bcee11cb0001ecdb07',
      '_links': {
        'addresses': {
          'href': 'http://user/customers/5cf7f4bcee11cb0001ecdb07/addresses'
        },
        'cards': {
          'href': 'http://user/customers/5cf7f4bcee11cb0001ecdb07/cards'
        },
        'customer': {
          'href': 'http://user/customers/5cf7f4bcee11cb0001ecdb07'
        },
        'self': {
          'href': 'http://user/customers/5cf7f4bcee11cb0001ecdb07'
        }
      }
    }
  ],
  path=Fields('customer'),
  context=DatumInContext(value={
    'customer': [
      {
        'firstName': 'Eve',
        'lastName': 'Berger',
        'username': 'Eve_Berger',
        'id': '57a98d98e4b00679b4a830af',
        '_links': {
          'addresses': {
            'href': 'http://user/customers/57a98d98e4b00679b4a830af/addresses'
          },
          'cards': {
            'href': 'http://user/customers/57a98d98e4b00679b4a830af/cards'
          },
          'customer': {
            'href': 'http://user/customers/57a98d98e4b00679b4a830af'
          },
          'self': {
            'href': 'http://user/customers/57a98d98e4b00679b4a830af'
          }
        }
      },
      {
        'firstName': 'User',
        'lastName': 'Name',
        'username': 'user',
        'id': '57a98d98e4b00679b4a830b2',
        '_links': {
          'addresses': {
            'href': 'http://user/customers/57a98d98e4b00679b4a830b2/addresses'
          },
          'cards': {
            'href': 'http://user/customers/57a98d98e4b00679b4a830b2/cards'
          },
          'customer': {
            'href': 'http://user/customers/57a98d98e4b00679b4a830b2'
          },
          'self': {
            'href': 'http://user/customers/57a98d98e4b00679b4a830b2'
          }
        }
      },
      {
        'firstName': 'TestName',
        'lastName': 'TestSurname',
        'username': 'test12',
        'id': '5cf7f4bcee11cb0001ecdb07',
        '_links': {
          'addresses': {
            'href': 'http://user/customers/5cf7f4bcee11cb0001ecdb07/addresses'
          },
          'cards': {
            'href': 'http://user/customers/5cf7f4bcee11cb0001ecdb07/cards'
          },
          'customer': {
            'href': 'http://user/customers/5cf7f4bcee11cb0001ecdb07'
          },
          'self': {
            'href': 'http://user/customers/5cf7f4bcee11cb0001ecdb07'
          }
        }
      }
    ]
  },
  path=Fields('_embedded'),
  context=DatumInContext(value={
    '_embedded': {
      'customer': [
        {
          'firstName': 'Eve',
          'lastName': 'Berger',
          'username': 'Eve_Berger',
          'id': '57a98d98e4b00679b4a830af',
          '_links': {
            'addresses': {
              'href': 'http://user/customers/57a98d98e4b00679b4a830af/addresses'
            },
            'cards': {
              'href': 'http://user/customers/57a98d98e4b00679b4a830af/cards'
            },
            'customer': {
              'href': 'http://user/customers/57a98d98e4b00679b4a830af'
            },
            'self': {
              'href': 'http://user/customers/57a98d98e4b00679b4a830af'
            }
          }
        },
        {
          'firstName': 'User',
          'lastName': 'Name',
          'username': 'user',
          'id': '57a98d98e4b00679b4a830b2',
          '_links': {
            'addresses': {
              'href': 'http://user/customers/57a98d98e4b00679b4a830b2/addresses'
            },
            'cards': {
              'href': 'http://user/customers/57a98d98e4b00679b4a830b2/cards'
            },
            'customer': {
              'href': 'http://user/customers/57a98d98e4b00679b4a830b2'
            },
            'self': {
              'href': 'http://user/customers/57a98d98e4b00679b4a830b2'
            }
          }
        },
        {
          'firstName': 'TestName',
          'lastName': 'TestSurname',
          'username': 'test12',
          'id': '5cf7f4bcee11cb0001ecdb07',
          '_links': {
            'addresses': {
              'href': 'http://user/customers/5cf7f4bcee11cb0001ecdb07/addresses'
            },
            'cards': {
              'href': 'http://user/customers/5cf7f4bcee11cb0001ecdb07/cards'
            },
            'customer': {
              'href': 'http://user/customers/5cf7f4bcee11cb0001ecdb07'
            },
            'self': {
              'href': 'http://user/customers/5cf7f4bcee11cb0001ecdb07'
            }
          }
        }
      ]
    }
  },
  path=Root(),
  context=None))))),
  DatumInContext(value='User',
  path=Fields('firstName'),
  context=DatumInContext(value={
    'firstName': 'User',
    'lastName': 'Name',
    'username': 'user',
    'id': '57a98d98e4b00679b4a830b2',
    '_links': {
      'addresses': {
        'href': 'http://user/customers/57a98d98e4b00679b4a830b2/addresses'
      },
      'cards': {
        'href': 'http://user/customers/57a98d98e4b00679b4a830b2/cards'
      },
      'customer': {
        'href': 'http://user/customers/57a98d98e4b00679b4a830b2'
      },
      'self': {
        'href': 'http://user/customers/57a98d98e4b00679b4a830b2'
      }
    }
  },
  path=<jsonpath_rw.jsonpath.Indexobjectat0x106245908>,
  context=DatumInContext(value=[
    {
      'firstName': 'Eve',
      'lastName': 'Berger',
      'username': 'Eve_Berger',
      'id': '57a98d98e4b00679b4a830af',
      '_links': {
        'addresses': {
          'href': 'http://user/customers/57a98d98e4b00679b4a830af/addresses'
        },
        'cards': {
          'href': 'http://user/customers/57a98d98e4b00679b4a830af/cards'
        },
        'customer': {
          'href': 'http://user/customers/57a98d98e4b00679b4a830af'
        },
        'self': {
          'href': 'http://user/customers/57a98d98e4b00679b4a830af'
        }
      }
    },
    {
      'firstName': 'User',
      'lastName': 'Name',
      'username': 'user',
      'id': '57a98d98e4b00679b4a830b2',
      '_links': {
        'addresses': {
          'href': 'http://user/customers/57a98d98e4b00679b4a830b2/addresses'
        },
        'cards': {
          'href': 'http://user/customers/57a98d98e4b00679b4a830b2/cards'
        },
        'customer': {
          'href': 'http://user/customers/57a98d98e4b00679b4a830b2'
        },
        'self': {
          'href': 'http://user/customers/57a98d98e4b00679b4a830b2'
        }
      }
    },
    {
      'firstName': 'TestName',
      'lastName': 'TestSurname',
      'username': 'test12',
      'id': '5cf7f4bcee11cb0001ecdb07',
      '_links': {
        'addresses': {
          'href': 'http://user/customers/5cf7f4bcee11cb0001ecdb07/addresses'
        },
        'cards': {
          'href': 'http://user/customers/5cf7f4bcee11cb0001ecdb07/cards'
        },
        'customer': {
          'href': 'http://user/customers/5cf7f4bcee11cb0001ecdb07'
        },
        'self': {
          'href': 'http://user/customers/5cf7f4bcee11cb0001ecdb07'
        }
      }
    }
  ],
  path=Fields('customer'),
  context=DatumInContext(value={
    'customer': [
      {
        'firstName': 'Eve',
        'lastName': 'Berger',
        'username': 'Eve_Berger',
        'id': '57a98d98e4b00679b4a830af',
        '_links': {
          'addresses': {
            'href': 'http://user/customers/57a98d98e4b00679b4a830af/addresses'
          },
          'cards': {
            'href': 'http://user/customers/57a98d98e4b00679b4a830af/cards'
          },
          'customer': {
            'href': 'http://user/customers/57a98d98e4b00679b4a830af'
          },
          'self': {
            'href': 'http://user/customers/57a98d98e4b00679b4a830af'
          }
        }
      },
      {
        'firstName': 'User',
        'lastName': 'Name',
        'username': 'user',
        'id': '57a98d98e4b00679b4a830b2',
        '_links': {
          'addresses': {
            'href': 'http://user/customers/57a98d98e4b00679b4a830b2/addresses'
          },
          'cards': {
            'href': 'http://user/customers/57a98d98e4b00679b4a830b2/cards'
          },
          'customer': {
            'href': 'http://user/customers/57a98d98e4b00679b4a830b2'
          },
          'self': {
            'href': 'http://user/customers/57a98d98e4b00679b4a830b2'
          }
        }
      },
      {
        'firstName': 'TestName',
        'lastName': 'TestSurname',
        'username': 'test12',
        'id': '5cf7f4bcee11cb0001ecdb07',
        '_links': {
          'addresses': {
            'href': 'http://user/customers/5cf7f4bcee11cb0001ecdb07/addresses'
          },
          'cards': {
            'href': 'http://user/customers/5cf7f4bcee11cb0001ecdb07/cards'
          },
          'customer': {
            'href': 'http://user/customers/5cf7f4bcee11cb0001ecdb07'
          },
          'self': {
            'href': 'http://user/customers/5cf7f4bcee11cb0001ecdb07'
          }
        }
      }
    ]
  },
  path=Fields('_embedded'),
  context=DatumInContext(value={
    '_embedded': {
      'customer': [
        {
          'firstName': 'Eve',
          'lastName': 'Berger',
          'username': 'Eve_Berger',
          'id': '57a98d98e4b00679b4a830af',
          '_links': {
            'addresses': {
              'href': 'http://user/customers/57a98d98e4b00679b4a830af/addresses'
            },
            'cards': {
              'href': 'http://user/customers/57a98d98e4b00679b4a830af/cards'
            },
            'customer': {
              'href': 'http://user/customers/57a98d98e4b00679b4a830af'
            },
            'self': {
              'href': 'http://user/customers/57a98d98e4b00679b4a830af'
            }
          }
        },
        {
          'firstName': 'User',
          'lastName': 'Name',
          'username': 'user',
          'id': '57a98d98e4b00679b4a830b2',
          '_links': {
            'addresses': {
              'href': 'http://user/customers/57a98d98e4b00679b4a830b2/addresses'
            },
            'cards': {
              'href': 'http://user/customers/57a98d98e4b00679b4a830b2/cards'
            },
            'customer': {
              'href': 'http://user/customers/57a98d98e4b00679b4a830b2'
            },
            'self': {
              'href': 'http://user/customers/57a98d98e4b00679b4a830b2'
            }
          }
        },
        {
          'firstName': 'TestName',
          'lastName': 'TestSurname',
          'username': 'test12',
          'id': '5cf7f4bcee11cb0001ecdb07',
          '_links': {
            'addresses': {
              'href': 'http://user/customers/5cf7f4bcee11cb0001ecdb07/addresses'
            },
            'cards': {
              'href': 'http://user/customers/5cf7f4bcee11cb0001ecdb07/cards'
            },
            'customer': {
              'href': 'http://user/customers/5cf7f4bcee11cb0001ecdb07'
            },
            'self': {
              'href': 'http://user/customers/5cf7f4bcee11cb0001ecdb07'
            }
          }
        }
      ]
    }
  },
  path=Root(),
  context=None))))),
  DatumInContext(value='TestName',
  path=Fields('firstName'),
  context=DatumInContext(value={
    'firstName': 'TestName',
    'lastName': 'TestSurname',
    'username': 'test12',
    'id': '5cf7f4bcee11cb0001ecdb07',
    '_links': {
      'addresses': {
        'href': 'http://user/customers/5cf7f4bcee11cb0001ecdb07/addresses'
      },
      'cards': {
        'href': 'http://user/customers/5cf7f4bcee11cb0001ecdb07/cards'
      },
      'customer': {
        'href': 'http://user/customers/5cf7f4bcee11cb0001ecdb07'
      },
      'self': {
        'href': 'http://user/customers/5cf7f4bcee11cb0001ecdb07'
      }
    }
  },
  path=<jsonpath_rw.jsonpath.Indexobjectat0x106245cf8>,
  context=DatumInContext(value=[
    {
      'firstName': 'Eve',
      'lastName': 'Berger',
      'username': 'Eve_Berger',
      'id': '57a98d98e4b00679b4a830af',
      '_links': {
        'addresses': {
          'href': 'http://user/customers/57a98d98e4b00679b4a830af/addresses'
        },
        'cards': {
          'href': 'http://user/customers/57a98d98e4b00679b4a830af/cards'
        },
        'customer': {
          'href': 'http://user/customers/57a98d98e4b00679b4a830af'
        },
        'self': {
          'href': 'http://user/customers/57a98d98e4b00679b4a830af'
        }
      }
    },
    {
      'firstName': 'User',
      'lastName': 'Name',
      'username': 'user',
      'id': '57a98d98e4b00679b4a830b2',
      '_links': {
        'addresses': {
          'href': 'http://user/customers/57a98d98e4b00679b4a830b2/addresses'
        },
        'cards': {
          'href': 'http://user/customers/57a98d98e4b00679b4a830b2/cards'
        },
        'customer': {
          'href': 'http://user/customers/57a98d98e4b00679b4a830b2'
        },
        'self': {
          'href': 'http://user/customers/57a98d98e4b00679b4a830b2'
        }
      }
    },
    {
      'firstName': 'TestName',
      'lastName': 'TestSurname',
      'username': 'test12',
      'id': '5cf7f4bcee11cb0001ecdb07',
      '_links': {
        'addresses': {
          'href': 'http://user/customers/5cf7f4bcee11cb0001ecdb07/addresses'
        },
        'cards': {
          'href': 'http://user/customers/5cf7f4bcee11cb0001ecdb07/cards'
        },
        'customer': {
          'href': 'http://user/customers/5cf7f4bcee11cb0001ecdb07'
        },
        'self': {
          'href': 'http://user/customers/5cf7f4bcee11cb0001ecdb07'
        }
      }
    }
  ],
  path=Fields('customer'),
  context=DatumInContext(value={
    'customer': [
      {
        'firstName': 'Eve',
        'lastName': 'Berger',
        'username': 'Eve_Berger',
        'id': '57a98d98e4b00679b4a830af',
        '_links': {
          'addresses': {
            'href': 'http://user/customers/57a98d98e4b00679b4a830af/addresses'
          },
          'cards': {
            'href': 'http://user/customers/57a98d98e4b00679b4a830af/cards'
          },
          'customer': {
            'href': 'http://user/customers/57a98d98e4b00679b4a830af'
          },
          'self': {
            'href': 'http://user/customers/57a98d98e4b00679b4a830af'
          }
        }
      },
      {
        'firstName': 'User',
        'lastName': 'Name',
        'username': 'user',
        'id': '57a98d98e4b00679b4a830b2',
        '_links': {
          'addresses': {
            'href': 'http://user/customers/57a98d98e4b00679b4a830b2/addresses'
          },
          'cards': {
            'href': 'http://user/customers/57a98d98e4b00679b4a830b2/cards'
          },
          'customer': {
            'href': 'http://user/customers/57a98d98e4b00679b4a830b2'
          },
          'self': {
            'href': 'http://user/customers/57a98d98e4b00679b4a830b2'
          }
        }
      },
      {
        'firstName': 'TestName',
        'lastName': 'TestSurname',
        'username': 'test12',
        'id': '5cf7f4bcee11cb0001ecdb07',
        '_links': {
          'addresses': {
            'href': 'http://user/customers/5cf7f4bcee11cb0001ecdb07/addresses'
          },
          'cards': {
            'href': 'http://user/customers/5cf7f4bcee11cb0001ecdb07/cards'
          },
          'customer': {
            'href': 'http://user/customers/5cf7f4bcee11cb0001ecdb07'
          },
          'self': {
            'href': 'http://user/customers/5cf7f4bcee11cb0001ecdb07'
          }
        }
      }
    ]
  },
  path=Fields('_embedded'),
  context=DatumInContext(value={
    '_embedded': {
      'customer': [
        {
          'firstName': 'Eve',
          'lastName': 'Berger',
          'username': 'Eve_Berger',
          'id': '57a98d98e4b00679b4a830af',
          '_links': {
            'addresses': {
              'href': 'http://user/customers/57a98d98e4b00679b4a830af/addresses'
            },
            'cards': {
              'href': 'http://user/customers/57a98d98e4b00679b4a830af/cards'
            },
            'customer': {
              'href': 'http://user/customers/57a98d98e4b00679b4a830af'
            },
            'self': {
              'href': 'http://user/customers/57a98d98e4b00679b4a830af'
            }
          }
        },
        {
          'firstName': 'User',
          'lastName': 'Name',
          'username': 'user',
          'id': '57a98d98e4b00679b4a830b2',
          '_links': {
            'addresses': {
              'href': 'http://user/customers/57a98d98e4b00679b4a830b2/addresses'
            },
            'cards': {
              'href': 'http://user/customers/57a98d98e4b00679b4a830b2/cards'
            },
            'customer': {
              'href': 'http://user/customers/57a98d98e4b00679b4a830b2'
            },
            'self': {
              'href': 'http://user/customers/57a98d98e4b00679b4a830b2'
            }
          }
        },
        {
          'firstName': 'TestName',
          'lastName': 'TestSurname',
          'username': 'test12',
          'id': '5cf7f4bcee11cb0001ecdb07',
          '_links': {
            'addresses': {
              'href': 'http://user/customers/5cf7f4bcee11cb0001ecdb07/addresses'
            },
            'cards': {
              'href': 'http://user/customers/5cf7f4bcee11cb0001ecdb07/cards'
            },
            'customer': {
              'href': 'http://user/customers/5cf7f4bcee11cb0001ecdb07'
            },
            'self': {
              'href': 'http://user/customers/5cf7f4bcee11cb0001ecdb07'
            }
          }
        }
      ]
    }
  },
  path=Root(),
  context=None)))))
]

这是我的 Python 代码：

from jsonpath_rw import parse

def match(self, response):
    json = response.json()
    value = parse("$..firstName").find(json)
    print(json)
    print(value)
    print(len(value))

Answer 1

value 是包含找到的所有对象的列表。列表中的每个项目都有一个带有结果的值，如果没有找到则该值为空。

print([x.value for x in found])

结果：

['Eve', 'User', 'TestName']

希望对您有所帮助。

jsonpath_rw for Python - 解析特定键

jsonpath_rw for Python - parsing a specific key

python

json

jsonpath