什么是JavaScript库或者模块，可以更新基于jsonpath JSON？

我已经使用了一些Java库之前实现这一目标。我想既然JSON是更内在的JavaScript到Java，它应该是很容易发现，确实是一个图书馆。但令人意外的没有。

给定一个JSON对象：什么，我找是一个例子：

 {
  "store": {
    "book": [
      {
        "category": "reference",
        "author": "Nigel Rees",
        "title": "Sayings of the Century",
        "price": 8.95
      },
      {
        "category": "fiction",
        "author": "Evelyn Waugh",
        "title": "Sword of Honour",
        "price": 12.99
      },
      {
        "category": "fiction",
        "author": "Herman Melville",
        "title": "Moby Dick",
        "isbn": "0-553-21311-3",
        "price": 8.99
      },
      {
        "category": "fiction",
        "author": "J. R. R. Tolkien",
        "title": "The Lord of the Rings",
        "isbn": "0-395-19395-8",
        "price": 22.99
      }
    ],
    "bicycle": {
      "color": "red",
      "price": 19.95
    }
  }
}

和Jsonpath喜欢：

 '$..author'

我可以调用一个JavaScript函数，它的JSONObject，JsonPath和NEWVALUE（莎士比亚）作为输入参数，并且JSONPATH的所有出现的值改变为一个新的值，例如至

 {
  "store": {
    "book": [
      {
        "category": "reference",
        "author": "Shakespeare",
        "title": "Sayings of the Century",
        "price": 8.95
      },
      {
        "category": "fiction",
        "author": "Shakespeare",
        "title": "Sword of Honour",
        "price": 12.99
      },
      {
        "category": "fiction",
        "author": "Shakespeare",
        "title": "Moby Dick",
        "isbn": "0-553-21311-3",
        "price": 8.99
      },
      {
        "category": "fiction",
        "author": "Shakespeare",
        "title": "The Lord of the Rings",
        "isbn": "0-395-19395-8",
        "price": 22.99
      }
    ],
    "bicycle": {
      "color": "red",
      "price": 19.95
    }
  }
}

有什么建议么？

尝试使用jsonpath NPM包。

使用适用方法来改变JSON对象的值并返回节点。你需要添加一些方法，将根据每个节点的路径来更改值。

const _ = require('lodash');
var jp = require('jsonpath');
const data = {
"store": {
  "book": [ 
    {
      "category": "reference",
      "author": "Nigel Rees",
      "title": "Sayings of the Century",
      "price": 8.95
    }, {
      "category": "fiction",
      "author": "Evelyn Waugh",
      "title": "Sword of Honour",
      "price": 12.99
    }, {
      "category": "fiction",
      "author": "Herman Melville",
      "title": "Moby Dick",
      "isbn": "0-553-21311-3",
      "price": 8.99
    }, {
       "category": "fiction",
      "author": "J. R. R. Tolkien",
      "title": "The Lord of the Rings",
      "isbn": "0-395-19395-8",
      "price": 22.99
    }
  ],
  "bicycle": {
    "color": "red",
    "price": 19.95
  }
}
  }
    var nodes = jp.apply(data, '$..author', function(value) { return value.toUpperCase() });
    // [
    //   { path: ['$', 'store', 'book', 0], value: 'NIGEL REES' },
    //   { path: ['$', 'store', 'book', 1], value: 'EVELYN WAUGH' },
    //   { path: ['$', 'store', 'book', 2], value: 'HERMAN MELVILLE' },
    //   { path: ['$', 'store', 'book', 3], value: 'J. R. R. TOLKIEN' }
    // ]

    function chnageValueByPath(object, path, value) {
       if(Array.isArray(path) && path[0] === '$') {
            const pathWithoutFirstElement = path.slice(1);
            _.set(object, pathWithoutFirstElement, value);
       }
    }

    function changeValuesByPath(object, nodes, lastPropertyName) {
        nodes.forEach((node)=> {
            chnageValueByPath(object, node.path.concat(lastPropertyName), node.value);
        })

        return object;
    }

    const result = changeValuesByPath(data, nodes, 'author');
    console.log(result);