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Question

我正在做什么::我正在尝试为数据库

生成数据集的json和xml输出

Express Code ::我在这里尝试JSON响应

var express = require('express')
  , async = require('async')
  , http = require('http')
  , mysql = require('mysql'); 
  var xml = require('xml');

var app = express();

var connection = mysql.createConnection({
    host: 'localhost',
    user: 'root',
    database: 'MyDatabase'
});

connection.connect();

// all environments
app.set('port', process.env.PORT || 3007);

app.use(express.static(__dirname + '/public/images'));

app.get('/Result/',function(request,response){
    var name_of_restaurants;

    async.series( [
        // Get the first table contents
        function ( callback ) {
            connection.query('SELECT * FROM mas_buf_type', function(err, rows, fields)
                {
                        console.log('Connection result error '+err);
                        name_of_restaurants = rows;
                        callback();
                });

 }

   // Send the response
], function ( error, results ) {


 response.json({'restaurants' : name_of_restaurants });



//response.set('Content-Type', 'text/xml');
//response.send(xml(name_of_restaurants));
} );

} );




http.createServer(app).listen(app.get('port'),function(){
        console.log('Express server listening on port'+app.get('port'));
});

我的输出 ::

{
    "restaurants": [
        {
            "Buf_Type_Id": 1,
            "Buf_Type_Name": "Breakfast"
        },
        {
            "Buf_Type_Id": 2,
            "Buf_Type_Name": "Lunch"
        },
        {
            "Buf_Type_Id": 3,
            "Buf_Type_Name": "Dinner"
        }
    ]
}

现在而不是

 response.json({'restaurants' : name_of_restaurants });

我添加了这些行以获得XML输出

response.set('Content-Type', 'text/xml');
response.send(xml(name_of_restaurants));

输出 ::

<Buf_Type_Id>1</Buf_Type_Id>
<Buf_Type_Id>2</Buf_Type_Id>
<Buf_Type_Id>3</Buf_Type_Id>

我的问题 ::

显然你可以看到两个输出都不同，我找不到 xml输出中的第二列
如何解决此问题
我需要做出哪些改变

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var express = require('express')
  , async = require('async')
  , http = require('http')
  , mysql = require('mysql'); 
  var xml = require('xml');

var app = express();

var connection = mysql.createConnection({
    host: 'localhost',
    user: 'root',
    database: 'findmybuffet'
});

connection.connect();

// all environments
app.set('port', process.env.PORT || 3007);

app.use(express.static(__dirname + '/public/images'));

app.get('/Result/',function(request,response){
    var name_of_restaurants;

    async.series( [
        // Get the first table contents
        function ( callback ) {
            connection.query('SELECT * FROM mas_buf_type', function(err, rows, fields)
                {
                        console.log('Connection result error '+err);
                        name_of_restaurants = rows;
                        callback();
                });

 }

   // Send the response
], function ( error, results ) {


 //response.json({'restaurants' : name_of_restaurants });

response.set('Content-Type', 'text/xml');
//response.send(xml(name_of_restaurants));

response.send(xml({restaurants:[
    name_of_restaurants.map(function(r){
        return [ 
            { Buf_Type_Id: r.Buf_Type_Id },
            { Buf_Type_Name: r.Buf_Type_Name },
        ]
    })
]}));


} );

} );


http.createServer(app).listen(app.get('port'),function(){
        console.log('Express server listening on port'+app.get('port'));
});

输出 ::

<restaurants>
    <0>
        <Buf_Type_Id>1</Buf_Type_Id>
        <Buf_Type_Name>Breakfast</Buf_Type_Name>
    </0>
</restaurants>

同样清楚的是，我们可以看到<0>生成....这不是必需的...如何删除？

Answer 1

所以我为你寻找了一个更好的对象到XML映射器。在我找到一个我喜欢的之前我试了三次（它很容易使用，对你的应用程序来说很有意义）。抛弃旧的，改为使用object-to-xml：

var o2x = require('object-to-xml');

response.set('Content-Type', 'text/xml');
response.send(o2x({
    '?xml version="1.0" encoding="utf-8"?' : null,
    restaurants: {
        restaurant: name_of_restaurants
    }
}));

Answer 2

那些＆lt; 0＆gt;标签是因为您将数组嵌入餐馆＆＃39;。而不是那样，尝试将每个餐馆命名为对象数组：

...

response.send(xml({restaurants:[
    name_of_restaurants.map(function(r){
        return { restaurant_name? :
            [ 
                { Buf_Type_Id: r.Buf_Type_Id },
                { Buf_Type_Name: r.Buf_Type_Name }
            ]
    })
]}));

...

Expressjs响应为JSON和Xml

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2 个答案: