Question

我正在使用各种命令，find，findones，findoneandupdates等从mongodb中检索文档。其中大部分将返回保存的整个文档，这是我想要的。在做find或findOne mongoose时允许使用人口。我试图传回传递给我的整个对象或查看整个对象，但数组出错了。我仍然可以手动访问值，但我想要相当于整个对象的字符串。我尝试过JSON.stringify和util.inspect（）。也许有人有解决方案吗？我见过一些老帖子来解决这个问题。我将发布我的模型以及有关改变的有用建议，如果问题是我如何存储信息，将不胜感激。

型号：第一台产品，第二台机器：

var productSchema = new Schema({
    productName: String,
    produtDesc: String,
    author: String,
    lastUpdate: { type: Date, default: Date.now },
    minimum: { type: Schema.Types.ObjectId, ref: 'Machine' },
    recommended: { type: Schema.Types.ObjectId, ref: 'Machine' }
});

var machineSchema = new Schema({
    cpu: {
        speed: String,
        mfg: [String],
        family: [String],
        cores: Number,
        architecture: String
    },  
    memory: {
        total: Number,
        free: Number
    },
    storage: [ {
        drive: String,
        total: Number, 
        free: Number
    } ],
    os: {
        family: String,
        version: String,
        uptime: Number
    },
    screen: {
        height: Number,
        width: Number
    },
    browser: {
        family: String,
        version: String
    },
    network: [ {
        name: String, 
        speed: Number,
        addresses: [ {
            address: String,
            type: String,
            internal: Boolean
        } ]
    } ],
    software: {
        ".net": [String],
        java: [String],
        acrobat: String
    }
});

输出代码：

result.populate('recommended')
    .populate('minimum')
    .exec( function(err, done) {
        console.log(util.inspect(done,
            { showHidden: false, depth: 10 }));
        console.log(done.recommended.network[0]);
        reply(util.inspect(done,
            { showHidden: false, depth: null }));
    });

示例输出：第一个util.inspect，第二个JSON.stringify

// util.inspect
{ _id: 553dc1d60062ee501b88535d,
    recommended:
    { _id: 553dc1d60062ee501b88535b,
     __v: 0,
     software: { acrobat: '9.0', java: [Object], '': [Object] },
      network: [ [Object] ],
      browser: { version: '9', family: 'Internet Explorer' },
      screen: { width: 1920, height: 1080 },
     os: { version: '6.1', family: 'Windows_NT' },
     storage: [],
     memory: { total: 3072 },
     cpu: { cores: 4, speed: '2800', family: [Object], mfg: [Object] } },
     minimum:
     { _id: 553dc1d60062ee501b885359,
     __v: 0,
     software: { acrobat: '9.0', java: [Object], '': [Object] },
     network: [ [Object] ],
     browser: { version: '9', family: 'Internet Explorer' },
     screen: { width: 1024, height: 768 },
     os: { version: '6.0', family: 'Windows_NT' },
     storage: [],
     memory: { total: 2048 },
     cpu: { cores: 2, speed: '2666', family: [], mfg: [Object] } },
     productName: 'Product Name',
     author: 'chris.lohl',
    __v: 0,
     lastUpdate: Fri Apr 17 2015 07:01:37 GMT-0700 (US Mountain Standard Time) 

     }

// JSON.stringify
'{"_id":"553dc1d60062ee501b88535d","recommended":{"_id":"553dc1d60062ee501b88535b","__v":0,"software":{"acrobat":"9.0","java":     ["1.6.0.24"],"":{"net":["2.0","3.5"]}},"network":  [{"name":"ethernet","speed":1000,"_id":"553dc1d60062ee501b88535c","addresses":["[object Object]","[object Object]"]}],"browser": {"version":"9","family":"Internet Explorer"},"screen":  {"width":1920,"height":1080},"os":{"version":"6.1","family":"Windows_NT"},"storage":[],"memory":{"total":3072},"cpu":{"cores":4,"speed":"2800","family":["i3","i5","i7"],"mfg":["intel"]}},"minimum":{"_id":"553dc1d60062ee501b885359","__v":0,"software":{"acrobat":"9.0","java":["1.6.0.2
4"],"":{"net":["2.0","3.5"]}},"network":[{"name":"ethernet","speed":1000,"_id":"
553dc1d60062ee501b88535a","addresses":["[object Object]","[object Object]"]}],"b
rowser":{"version":"9","family":"Internet Explorer"},"screen":{"width":1024,"hei
ght":768},"os":{"version":"6.0","family":"Windows_NT"},"storage":[],"memory":{"t
otal":2048},"cpu":{"cores":2,"speed":"2666","family":[],"mfg":["intel","amd"]}},
"productName":"Product Name","author":"chris.lohl","__v":0,"lastUpdate":"2015-04
-17T14:01:37.000Z"}'

Answer 1

试试这个

JSON.parse（JSON.stringify（地址[0]））;

util.inspect / JSON.stringify不适用于对象中的数组

1 个答案: