Javascript node.js中作为json的xml宽度模式_Javascript_Json_Node.js_Xml

Javascript node.js中作为json的xml宽度模式

javascript json node.js xml

Javascript node.js中作为json的xml宽度模式,javascript,json,node.js,xml,Javascript,Json,Node.js,Xml,我尝试循环或访问由node.js中的xml对象生成的json对象的键到目前为止，我的代码： var fs = require('fs'); var parser = require('xml2json'); var xsd = require('libxml-xsd'); exports.readXml = function () { fs.readFile( './beispiel_daten/xml_data.xml', 'utf8', function(err, xml) {

我尝试循环或访问由node.js中的xml对象生成的json对象的键

到目前为止，我的代码：

var fs = require('fs');
var parser = require('xml2json');
var xsd = require('libxml-xsd');

exports.readXml = function () {
    fs.readFile( './beispiel_daten/xml_data.xml', 'utf8', function(err, xml) {
        if (xml) {
                xsd.parseFile("./beispiel_daten/xml_schema.xsd", function(err, schema){
                    schema.validate(xml, function(err, validationErrors){

                        if (!err) {
                            var json = parser.toJson(xml);
                            console.log(json['caaml:Bulletin']);
                        }

                    });
                });
            }
    });

}

xml文件：

模式：

创建的json对象如下所示：

{  
   "caaml:Bulletin":{  
      "xmlns:caaml":"http://caaml.org/Schemas/V5.0/Profiles/BulletinEAWS",
      "xmlns:gml":"http://www.opengis.net/gml",
      "xmlns:xlink":"http://www.w3.org/1999/xlink",
      "xmlns:xsi":"http://www.w3.org/2001/XMLSchema-instance",
      "xsi:schemaLocation":"http://caaml.org/Schemas/V5.0/Profiles/BulletinEAWS http://caaml.org/Schemas/V5.0/Profiles/BulletinEAWS/CAAMLv5_BulletinEAWS.xsd",
      "gml:id":"BulletinDeID3018",
      "xml:lang":"de",
      "caaml:metaDataProperty":{  ...

当我现在尝试使用

console.log（json['caaml:Bulletin']）访问第一个键时我收到一个未定义的代码
如何访问数据或如何循环对象
谢谢
const transform = require('camaro')
// const omitEmpty = require('omit-empty')

const xml = require('fs').readFileSync('so2.xml', 'utf-8')

const template = {
    data: ['//caaml:DangerRating', {
        locRef: 'caaml:locRef/@xlink:href',
        validTime: {
            beginPosition: '//caaml:TimePeriod/caaml:beginPosition',
            endPosition: '//caaml:TimePeriod/caaml:endPosition'
        },
        validElevation: {
            uom: '//caaml:ElevationRange/@uom',
            endPosition: '//caaml:endPosition'
        },
        mainValue: '//caaml:mainValue'
    }]
}

const result = transform(xml, template)
console.log(JSON.stringify(result.data, null, 2))

如果需要，可以添加更多属性。语法是Xpath 1.0
脚本的输出
[
  {
    "locRef": "",
    "mainValue": "3",
    "validElevation": {
      "endPosition": "2017-05-01T11:59:59+02:00",
      "uom": "m"
    },
    "validTime": {
      "beginPosition": "2017-05-01T00:00:00+02:00",
      "endPosition": "2017-05-01T11:59:59+02:00"
    }
  },
  {
    "locRef": "",
    "mainValue": "3",
    "validElevation": {
      "endPosition": "2017-05-01T11:59:59+02:00",
      "uom": "m"
    },
    "validTime": {
      "beginPosition": "2017-05-01T00:00:00+02:00",
      "endPosition": "2017-05-01T11:59:59+02:00"
    }
  },
  {
    "locRef": "",
    "mainValue": "3",
    "validElevation": {
      "endPosition": "2017-05-01T11:59:59+02:00",
      "uom": "m"
    },
    "validTime": {
      "beginPosition": "2017-05-01T00:00:00+02:00",
      "endPosition": "2017-05-01T11:59:59+02:00"
    }
  },
  {
    "locRef": "",
    "mainValue": "3",
    "validElevation": {
      "endPosition": "2017-05-01T11:59:59+02:00",
      "uom": "m"
    },
    "validTime": {
      "beginPosition": "2017-05-01T00:00:00+02:00",
      "endPosition": "2017-05-01T11:59:59+02:00"
    }
  },
  {
    "locRef": "",
    "mainValue": "3",
    "validElevation": {
      "endPosition": "2017-05-01T11:59:59+02:00",
      "uom": "m"
    },
    "validTime": {
      "beginPosition": "2017-05-01T00:00:00+02:00",
      "endPosition": "2017-05-01T11:59:59+02:00"
    }
  },
  {
    "locRef": "AT7R1",
    "mainValue": "3",
    "validElevation": {
      "endPosition": "2017-05-01T11:59:59+02:00",
      "uom": "m"
    },
    "validTime": {
      "beginPosition": "2017-05-01T00:00:00+02:00",
      "endPosition": "2017-05-01T11:59:59+02:00"
    }
  },
  {
    "locRef": "AT7R1",
    "mainValue": "3",
    "validElevation": {
      "endPosition": "2017-05-01T11:59:59+02:00",
      "uom": "m"
    },
    "validTime": {
      "beginPosition": "2017-05-01T00:00:00+02:00",
      "endPosition": "2017-05-01T11:59:59+02:00"
    }
  },
  {
    "locRef": "AT7R1",
    "mainValue": "3",
    "validElevation": {
      "endPosition": "2017-05-01T11:59:59+02:00",
      "uom": "m"
    },
    "validTime": {
      "beginPosition": "2017-05-01T00:00:00+02:00",
      "endPosition": "2017-05-01T11:59:59+02:00"
    }
  },
  {
    "locRef": "AT7R1",
    "mainValue": "3",
    "validElevation": {
      "endPosition": "2017-05-01T11:59:59+02:00",
      "uom": "m"
    },
    "validTime": {
      "beginPosition": "2017-05-01T00:00:00+02:00",
      "endPosition": "2017-05-01T11:59:59+02:00"
    }
  },
  {
    "locRef": "AT7R2",
    "mainValue": "3",
    "validElevation": {
      "endPosition": "2017-05-01T11:59:59+02:00",
      "uom": "m"
    },
    "validTime": {
      "beginPosition": "2017-05-01T00:00:00+02:00",
      "endPosition": "2017-05-01T11:59:59+02:00"
    }
  },
  {
    "locRef": "AT7R2",
    "mainValue": "3",
    "validElevation": {
      "endPosition": "2017-05-01T11:59:59+02:00",
      "uom": "m"
    },
    "validTime": {
      "beginPosition": "2017-05-01T00:00:00+02:00",
      "endPosition": "2017-05-01T11:59:59+02:00"
    }
  },
  {
    "locRef": "AT7R2",
    "mainValue": "3",
    "validElevation": {
      "endPosition": "2017-05-01T11:59:59+02:00",
      "uom": "m"
    },
    "validTime": {
      "beginPosition": "2017-05-01T00:00:00+02:00",
      "endPosition": "2017-05-01T11:59:59+02:00"
    }
  },
  {
    "locRef": "AT7R2",
    "mainValue": "3",
    "validElevation": {
      "endPosition": "2017-05-01T11:59:59+02:00",
      "uom": "m"
    },
    "validTime": {
      "beginPosition": "2017-05-01T00:00:00+02:00",
      "endPosition": "2017-05-01T11:59:59+02:00"
    }
  },
  {
    "locRef": "AT7R3",
    "mainValue": "3",
    "validElevation": {
      "endPosition": "2017-05-01T11:59:59+02:00",
      "uom": "m"
    },
    "validTime": {
      "beginPosition": "2017-05-01T00:00:00+02:00",
      "endPosition": "2017-05-01T11:59:59+02:00"
    }
  },
  {
    "locRef": "AT7R3",
    "mainValue": "3",
    "validElevation": {
      "endPosition": "2017-05-01T11:59:59+02:00",
      "uom": "m"
    },
    "validTime": {
      "beginPosition": "2017-05-01T00:00:00+02:00",
      "endPosition": "2017-05-01T11:59:59+02:00"
    }
  },
  {
    "locRef": "AT7R3",
    "mainValue": "3",
    "validElevation": {
      "endPosition": "2017-05-01T11:59:59+02:00",
      "uom": "m"
    },
    "validTime": {
      "beginPosition": "2017-05-01T00:00:00+02:00",
      "endPosition": "2017-05-01T11:59:59+02:00"
    }
  },
  {
    "locRef": "AT7R3",
    "mainValue": "3",
    "validElevation": {
      "endPosition": "2017-05-01T11:59:59+02:00",
      "uom": "m"
    },
    "validTime": {
      "beginPosition": "2017-05-01T00:00:00+02:00",
      "endPosition": "2017-05-01T11:59:59+02:00"
    }
  },
  {
    "locRef": "AT7R4",
    "mainValue": "3",
    "validElevation": {
      "endPosition": "2017-05-01T11:59:59+02:00",
      "uom": "m"
    },
    "validTime": {
      "beginPosition": "2017-05-01T00:00:00+02:00",
      "endPosition": "2017-05-01T11:59:59+02:00"
    }
  },
  {
    "locRef": "AT7R4",
    "mainValue": "3",
    "validElevation": {
      "endPosition": "2017-05-01T11:59:59+02:00",
      "uom": "m"
    },
    "validTime": {
      "beginPosition": "2017-05-01T00:00:00+02:00",
      "endPosition": "2017-05-01T11:59:59+02:00"
    }
  },
  {
    "locRef": "AT7R4",
    "mainValue": "3",
    "validElevation": {
      "endPosition": "2017-05-01T11:59:59+02:00",
      "uom": "m"
    },
    "validTime": {
      "beginPosition": "2017-05-01T00:00:00+02:00",
      "endPosition": "2017-05-01T11:59:59+02:00"
    }
  },
  {
    "locRef": "AT7R4",
    "mainValue": "3",
    "validElevation": {
      "endPosition": "2017-05-01T11:59:59+02:00",
      "uom": "m"
    },
    "validTime": {
      "beginPosition": "2017-05-01T00:00:00+02:00",
      "endPosition": "2017-05-01T11:59:59+02:00"
    }
  },
  {
    "locRef": "AT7R5",
    "mainValue": "3",
    "validElevation": {
      "endPosition": "2017-05-01T11:59:59+02:00",
      "uom": "m"
    },
    "validTime": {
      "beginPosition": "2017-05-01T00:00:00+02:00",
      "endPosition": "2017-05-01T11:59:59+02:00"
    }
  },
  {
    "locRef": "AT7R5",
    "mainValue": "3",
    "validElevation": {
      "endPosition": "2017-05-01T11:59:59+02:00",
      "uom": "m"
    },
    "validTime": {
      "beginPosition": "2017-05-01T00:00:00+02:00",
      "endPosition": "2017-05-01T11:59:59+02:00"
    }
  },
  {
    "locRef": "AT7R5",
    "mainValue": "3",
    "validElevation": {
      "endPosition": "2017-05-01T11:59:59+02:00",
      "uom": "m"
    },
    "validTime": {
      "beginPosition": "2017-05-01T00:00:00+02:00",
      "endPosition": "2017-05-01T11:59:59+02:00"
    }
  },
  {
    "locRef": "AT7R5",
    "mainValue": "3",
    "validElevation": {
      "endPosition": "2017-05-01T11:59:59+02:00",
      "uom": "m"
    },
    "validTime": {
      "beginPosition": "2017-05-01T00:00:00+02:00",
      "endPosition": "2017-05-01T11:59:59+02:00"
    }
  },
  {
    "locRef": "AT7R6",
    "mainValue": "3",
    "validElevation": {
      "endPosition": "2017-05-01T11:59:59+02:00",
      "uom": "m"
    },
    "validTime": {
      "beginPosition": "2017-05-01T00:00:00+02:00",
      "endPosition": "2017-05-01T11:59:59+02:00"
    }
  },
  {
    "locRef": "AT7R6",
    "mainValue": "3",
    "validElevation": {
      "endPosition": "2017-05-01T11:59:59+02:00",
      "uom": "m"
    },
    "validTime": {
      "beginPosition": "2017-05-01T00:00:00+02:00",
      "endPosition": "2017-05-01T11:59:59+02:00"
    }
  },
  {
    "locRef": "AT7R6",
    "mainValue": "3",
    "validElevation": {
      "endPosition": "2017-05-01T11:59:59+02:00",
      "uom": "m"
    },
    "validTime": {
      "beginPosition": "2017-05-01T00:00:00+02:00",
      "endPosition": "2017-05-01T11:59:59+02:00"
    }
  },
  {
    "locRef": "AT7R6",
    "mainValue": "3",
    "validElevation": {
      "endPosition": "2017-05-01T11:59:59+02:00",
      "uom": "m"
    },
    "validTime": {
      "beginPosition": "2017-05-01T00:00:00+02:00",
      "endPosition": "2017-05-01T11:59:59+02:00"
    }
  },
  {
    "locRef": "AT7R7",
    "mainValue": "3",
    "validElevation": {
      "endPosition": "2017-05-01T11:59:59+02:00",
      "uom": "m"
    },
    "validTime": {
      "beginPosition": "2017-05-01T00:00:00+02:00",
      "endPosition": "2017-05-01T11:59:59+02:00"
    }
  },
  {
    "locRef": "AT7R7",
    "mainValue": "3",
    "validElevation": {
      "endPosition": "2017-05-01T11:59:59+02:00",
      "uom": "m"
    },
    "validTime": {
      "beginPosition": "2017-05-01T00:00:00+02:00",
      "endPosition": "2017-05-01T11:59:59+02:00"
    }
  },
  {
    "locRef": "AT7R7",
    "mainValue": "3",
    "validElevation": {
      "endPosition": "2017-05-01T11:59:59+02:00",
      "uom": "m"
    },
    "validTime": {
      "beginPosition": "2017-05-01T00:00:00+02:00",
      "endPosition": "2017-05-01T11:59:59+02:00"
    }
  },
  {
    "locRef": "AT7R7",
    "mainValue": "3",
    "validElevation": {
      "endPosition": "2017-05-01T11:59:59+02:00",
      "uom": "m"
    },
    "validTime": {
      "beginPosition": "2017-05-01T00:00:00+02:00",
      "endPosition": "2017-05-01T11:59:59+02:00"
    }
  },
  {
    "locRef": "AT7R8",
    "mainValue": "3",
    "validElevation": {
      "endPosition": "2017-05-01T11:59:59+02:00",
      "uom": "m"
    },
    "validTime": {
      "beginPosition": "2017-05-01T00:00:00+02:00",
      "endPosition": "2017-05-01T11:59:59+02:00"
    }
  },
  {
    "locRef": "AT7R8",
    "mainValue": "3",
    "validElevation": {
      "endPosition": "2017-05-01T11:59:59+02:00",
      "uom": "m"
    },
    "validTime": {
      "beginPosition": "2017-05-01T00:00:00+02:00",
      "endPosition": "2017-05-01T11:59:59+02:00"
    }
  },
  {
    "locRef": "AT7R8",
    "mainValue": "3",
    "validElevation": {
      "endPosition": "2017-05-01T11:59:59+02:00",
      "uom": "m"
    },
    "validTime": {
      "beginPosition": "2017-05-01T00:00:00+02:00",
      "endPosition": "2017-05-01T11:59:59+02:00"
    }
  },
  {
    "locRef": "AT7R8",
    "mainValue": "3",
    "validElevation": {
      "endPosition": "2017-05-01T11:59:59+02:00",
      "uom": "m"
    },
    "validTime": {
      "beginPosition": "2017-05-01T00:00:00+02:00",
      "endPosition": "2017-05-01T11:59:59+02:00"
    }
  },
  {
    "locRef": "AT7R9",
    "mainValue": "3",
    "validElevation": {
      "endPosition": "2017-05-01T11:59:59+02:00",
      "uom": "m"
    },
    "validTime": {
      "beginPosition": "2017-05-01T00:00:00+02:00",
      "endPosition": "2017-05-01T11:59:59+02:00"
    }
  },
  {
    "locRef": "AT7R9",
    "mainValue": "3",
    "validElevation": {
      "endPosition": "2017-05-01T11:59:59+02:00",
      "uom": "m"
    },
    "validTime": {
      "beginPosition": "2017-05-01T00:00:00+02:00",
      "endPosition": "2017-05-01T11:59:59+02:00"
    }
  },
  {
    "locRef": "AT7R9",
    "mainValue": "3",
    "validElevation": {
      "endPosition": "2017-05-01T11:59:59+02:00",
      "uom": "m"
    },
    "validTime": {
      "beginPosition": "2017-05-01T00:00:00+02:00",
      "endPosition": "2017-05-01T11:59:59+02:00"
    }
  },
  {
    "locRef": "AT7R9",
    "mainValue": "3",
    "validElevation": {
      "endPosition": "2017-05-01T11:59:59+02:00",
      "uom": "m"
    },
    "validTime": {
      "beginPosition": "2017-05-01T00:00:00+02:00",
      "endPosition": "2017-05-01T11:59:59+02:00"
    }
  },
  {
    "locRef": "AT7R10",
    "mainValue": "3",
    "validElevation": {
      "endPosition": "2017-05-01T11:59:59+02:00",
      "uom": "m"
    },
    "validTime": {
      "beginPosition": "2017-05-01T00:00:00+02:00",
      "endPosition": "2017-05-01T11:59:59+02:00"
    }
  },
  {
    "locRef": "AT7R10",
    "mainValue": "3",
    "validElevation": {
      "endPosition": "2017-05-01T11:59:59+02:00",
      "uom": "m"
    },
    "validTime": {
      "beginPosition": "2017-05-01T00:00:00+02:00",
      "endPosition": "2017-05-01T11:59:59+02:00"
    }
  },
  {
    "locRef": "AT7R10",
    "mainValue": "3",
    "validElevation": {
      "endPosition": "2017-05-01T11:59:59+02:00",
      "uom": "m"
    },
    "validTime": {
      "beginPosition": "2017-05-01T00:00:00+02:00",
      "endPosition": "2017-05-01T11:59:59+02:00"
    }
  },
  {
    "locRef": "AT7R10",
    "mainValue": "3",
    "validElevation": {
      "endPosition": "2017-05-01T11:59:59+02:00",
      "uom": "m"
    },
    "validTime": {
      "beginPosition": "2017-05-01T00:00:00+02:00",
      "endPosition": "2017-05-01T11:59:59+02:00"
    }
  },
  {
    "locRef": "AT7R11",
    "mainValue": "3",
    "validElevation": {
      "endPosition": "2017-05-01T11:59:59+02:00",
      "uom": "m"
    },
    "validTime": {
      "beginPosition": "2017-05-01T00:00:00+02:00",
      "endPosition": "2017-05-01T11:59:59+02:00"
    }
  },
  {
    "locRef": "AT7R11",
    "mainValue": "3",
    "validElevation": {
      "endPosition": "2017-05-01T11:59:59+02:00",
      "uom": "m"
    },
    "validTime": {
      "beginPosition": "2017-05-01T00:00:00+02:00",
      "endPosition": "2017-05-01T11:59:59+02:00"
    }
  },
  {
    "locRef": "AT7R11",
    "mainValue": "3",
    "validElevation": {
      "endPosition": "2017-05-01T11:59:59+02:00",
      "uom": "m"
    },
    "validTime": {
      "beginPosition": "2017-05-01T00:00:00+02:00",
      "endPosition": "2017-05-01T11:59:59+02:00"
    }
  },
  {
    "locRef": "AT7R11",
    "mainValue": "3",
    "validElevation": {
      "endPosition": "2017-05-01T11:59:59+02:00",
      "uom": "m"
    },
    "validTime": {
      "beginPosition": "2017-05-01T00:00:00+02:00",
      "endPosition": "2017-05-01T11:59:59+02:00"
    }
  },
  {
    "locRef": "AT7R12",
    "mainValue": "3",
    "validElevation": {
      "endPosition": "2017-05-01T11:59:59+02:00",
      "uom": "m"
    },
    "validTime": {
      "beginPosition": "2017-05-01T00:00:00+02:00",
      "endPosition": "2017-05-01T11:59:59+02:00"
    }
  },
  {
    "locRef": "AT7R12",
    "mainValue": "3",
    "validElevation": {
      "endPosition": "2017-05-01T11:59:59+02:00",
      "uom": "m"
    },
    "validTime": {
      "beginPosition": "2017-05-01T00:00:00+02:00",
      "endPosition": "2017-05-01T11:59:59+02:00"
    }
  },
  {
    "locRef": "AT7R12",
    "mainValue": "3",
    "validElevation": {
      "endPosition": "2017-05-01T11:59:59+02:00",
      "uom": "m"
    },
    "validTime": {
      "beginPosition": "2017-05-01T00:00:00+02:00",
      "endPosition": "2017-05-01T11:59:59+02:00"
    }
  },
  {
    "locRef": "AT7R12",
    "mainValue": "3",
    "validElevation": {
      "endPosition": "2017-05-01T11:59:59+02:00",
      "uom": "m"
    },
    "validTime": {
      "beginPosition": "2017-05-01T00:00:00+02:00",
      "endPosition": "2017-05-01T11:59:59+02:00"
    }
  }
]

你想得到什么？您对json输出的期望是什么？我需要循环caaml:bulletinResultsOf->caaml:BulletinMeasurements->caaml:Dangerating的数据所有这些节点caaml:Dangerating
都是吗？是的，caaml:Dangerating的所有节点，谢谢我也尝试过这个，但我无法让它工作