Node.js：获取从前端传递的对象的名称和值

Question

我正在使用 nodejs 开发微服务。

请求正在遵循 JSON 。

{
     "distCd": "abcd",
     "distName": "parentLife Distributor (TOD)",
     "stateCd": "",
     "subdistInd": false,
     "maindistInd": true,
     "maindistCd": "",
     "distOpendt": "2018-08-28T17:36:02Z",
     "pricegrpCd": "01",
     "costPricegrpCd": "",
     "rssInd": false,
     "branchInd": false,
     "taxregionCd": "",
     "octroiInd": false
}

我如何获得名称“ distCd”和值“ abcd”

Answer 1

使用.表示法访问单个属性

var a={
                "distCd": "abcd",
                "distName": "parentLife Distributor (TOD)",
                "stateCd": "",
                "subdistInd": false,
                "maindistInd": true,
                "maindistCd": "",
                "distOpendt": "2018-08-28T17:36:02Z",
                "pricegrpCd": "01",
                "costPricegrpCd": "",
                "rssInd": false,
                "branchInd": false,
                "taxregionCd": "",
                "octroiInd": false
};
console.log(a.distCd)

此外，还可以使用[]

访问属性

var a={
                "distCd": "abcd",
                "distName": "parentLife Distributor (TOD)",
                "stateCd": "",
                "subdistInd": false,
                "maindistInd": true,
                "maindistCd": "",
                "distOpendt": "2018-08-28T17:36:02Z",
                "pricegrpCd": "01",
                "costPricegrpCd": "",
                "rssInd": false,
                "branchInd": false,
                "taxregionCd": "",
                "octroiInd": false
};
console.log(a["distCd"])

要获取属性名称，即键，您可以使用Object.keys()。这将为我们提供对象中存在的所有键的数组。

 var a={
                "distCd": "abcd",
                "distName": "parentLife Distributor (TOD)",
                "stateCd": "",
                "subdistInd": false,
                "maindistInd": true,
                "maindistCd": "",
                "distOpendt": "2018-08-28T17:36:02Z",
                "pricegrpCd": "01",
                "costPricegrpCd": "",
                "rssInd": false,
                "branchInd": false,
                "taxregionCd": "",
                "octroiInd": false
};
console.log(Object.keys(a))
console.log(Object.keys(a)[0]) //to access the first key

要获取对象中的所有值，可以使用Object.values()。这将为我们提供对象中存在的所有值的数组。

var a={
                    "distCd": "abcd",
                    "distName": "parentLife Distributor (TOD)",
                    "stateCd": "",
                    "subdistInd": false,
                    "maindistInd": true,
                    "maindistCd": "",
                    "distOpendt": "2018-08-28T17:36:02Z",
                    "pricegrpCd": "01",
                    "costPricegrpCd": "",
                    "rssInd": false,
                    "branchInd": false,
                    "taxregionCd": "",
                    "octroiInd": false
    };
    console.log(Object.values(a))
    console.log(Object.values(a)[0]) //to access the first value

Answer 2

您可以使用Object.keys()和Object.values()，也可以只使用Object.entries()。