我必须从使用 InvokeHTTPCustom 的 api 调用收到的 json 文件中提取属性。JSON FILE 具有以下示例数据:
[
{
"input_index": 0,
"candidate_index": 0,
"delivery_line_1": "1 Santa Claus Ln",
"last_line": "North Pole AK 99705-9901",
"delivery_point_barcode": "997059901010",
"components": {
"primary_number": "1",
"street_name": "Santa Claus",
"street_suffix": "Ln",
"city_name": "North Pole",
"state_abbreviation": "AK",
"zipcode": "99705",
"plus4_code": "9901",
"delivery_point": "01",
"delivery_point_check_digit": "0"
},
"metadata": {
"record_type": "S",
"zip_type": "Standard",
"county_fips": "02090",
"county_name": "Fairbanks North Star",
"carrier_route": "C004",
"congressional_district": "AL",
"rdi": "Commercial",
"elot_sequence": "0001",
"elot_sort": "A",
"latitude": 64.75233,
"longitude": -147.35297,
"coordinate_license": 1,
"precision": "Rooftop",
"time_zone": "Alaska",
"utc_offset": -9,
"dst": true
},
"analysis": {
"dpv_match_code": "Y",
"dpv_footnotes": "AABB",
"dpv_cmra": "N",
"dpv_vacant": "N",
"dpv_no_stat": "Y",
"active": "Y",
"footnotes": "L#"
}
},
{
"input_index": 1,
"candidate_index": 0,
"addressee": "Apple Inc",
"delivery_line_1": "1 Infinite Loop",
// truncated for brevity
}
]
我已经提取了所有必需的数据,例如地址、州、城市、primary_number 等。但是,当我尝试从元数据中提取纬度、经度时,它会导致 EvaluateJsonPathAttributeCustom 处理器失败。其他字符串格式的属性被正确提取。但是,这不是字符串,可能是问题,这是我的诊断。我如何让这个工作?我需要提取经度和纬度。请给出详细解释,因为我是 nifi 新手。EvaluateJsonPathAttributeCustom 在 nifi 中的配置:
Attribute Name Input : x**.json
Attribute Name Output : latitude
JsonPathExpresssion : $[0].metadata.latitude
Splitif.. : False