blocks|key|908636|text|var+objToJson+=+{+};
objToJson.response+=+response;
response.write(JSON.stringify(objToJson));|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|908637|如果你使用alert(JSON.stringify(objToJson))，你会得到{"response":"value"}|unstyled|offset|length|style|CODE|908638|entityMap^0|0|5|W|16|K|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$B|C]]|$1|D|3|E|5|F|7|N|8|@$G|O|H|P|I|J]|$G|Q|H|R|I|J]]|9|@]|A|$]]|$1|K|3|-4|5|F|7|S|8|@]|9|@]|A|$]]]|L|$]]

<pre><code>var objToJson = { };
objToJson.response = response;
response.write(JSON.stringify(objToJson));
</code></pre>

If you <code>alert(JSON.stringify(objToJson))</code> you will get <code>{"response":"value"}</code>

blocks|key|908693|text|在Express中使用res.json：|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|908694|function+random(response)+{
++console.log("response.json+sets+the+appropriate+header+and+performs+JSON.stringify");
++response.json({+
++++anObject:+{+item1:+"item1val",+item2:+"item2val"+},+
++++anArray:+["item1",+"item2"],+
++++another:+"item"
++});
}|code-block|syntax|javascript|908695|或者：|908696|function+random(response)+{
++console.log("Request+handler+random+was+called.");
++response.writeHead(200,+{"Content-Type":+"application/json"});
++var+otherArray+=+["item1",+"item2"];
++var+otherObject+=+{+item1:+"item1val",+item2:+"item2val"+};
++var+json+=+JSON.stringify({+
++++anObject:+otherObject,+
++++anArray:+otherArray,+
++++another:+"item"
++});
++response.end(json);
}|908697|entityMap|0|LINK|mutability|MUTABLE|url|http://expressjs.com/en/api.html#res.json^0|B|8|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|U|8|@]|9|@$A|V|B|W|1|X]]|C|$]]|$1|D|3|E|5|F|7|Y|8|@]|9|@]|C|$G|H]]|$1|I|3|J|5|6|7|Z|8|@]|9|@]|C|$]]|$1|K|3|L|5|F|7|10|8|@]|9|@]|C|$G|H]]|$1|M|3|-4|5|6|7|11|8|@]|9|@]|C|$]]]|N|$O|$5|P|Q|R|C|$S|T]]]]

Using <a href="http://expressjs.com/en/api.html#res.json" rel="noreferrer">res.json</a> with Express:

<pre><code>function random(response) {
 console.log("response.json sets the appropriate header and performs JSON.stringify");
 response.json({ 
 anObject: { item1: "item1val", item2: "item2val" }, 
 anArray: ["item1", "item2"], 
 another: "item"
 });
}
</code></pre>

Alternatively:

<pre><code>function random(response) {
 console.log("Request handler random was called.");
 response.writeHead(200, {"Content-Type": "application/json"});
 var otherArray = ["item1", "item2"];
 var otherObject = { item1: "item1val", item2: "item2val" };
 var json = JSON.stringify({ 
 anObject: otherObject, 
 anArray: otherArray, 
 another: "item"
 });
 response.end(json);
}
</code></pre>

blocks|key|908747|text|在express中，可能存在应用程序范围JSON格式器。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|908748|在研究了express\lib\response.js之后，我使用了以下例程：|908749|function+writeJsonPToRes(app,+req,+res,+obj)+{
++++var+replacer+=+app.get('json+replacer');
++++var+spaces+=+app.get('json+spaces');
++++res.set('Content-Type',+'application/json');
++++var+partOfResponse+=+JSON.stringify(obj,+replacer,+spaces)
++++++++.replace(/\u2028/g,+'\\u2028')
++++++++.replace(/\u2029/g,+'\\u2029');
++++var+callback+=+req.query[app.get('jsonp+callback+name')];
++++if+(callback)+{
++++++++if+(Array.isArray(callback))+callback+=+callback[0];
++++++++res.set('Content-Type',+'text/javascript');
++++++++var+cb+=+callback.replace(/[%5E\[\]\w$.]/g,+'');
++++++++partOfResponse+=+'typeof+'+%2B+cb+%2B+'+===+\'function\'+&&+'+%2B+cb+%2B+'('+%2B+partOfResponse+%2B+');\n';
++++}
++++res.write(partOfResponse);
}|code-block|syntax|javascript|908750|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|L|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|M|8|@]|9|@]|A|$G|H]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

in express there may be application-scoped JSON formatters.

after looking at express\lib\response.js, I'm using this routine:

<pre><code>function writeJsonPToRes(app, req, res, obj) {
 var replacer = app.get('json replacer');
 var spaces = app.get('json spaces');
 res.set('Content-Type', 'application/json');
 var partOfResponse = JSON.stringify(obj, replacer, spaces)
 .replace(/\u2028/g, '\\u2028')
 .replace(/\u2029/g, '\\u2029');
 var callback = req.query[app.get('jsonp callback name')];
 if (callback) {
 if (Array.isArray(callback)) callback = callback[0];
 res.set('Content-Type', 'text/javascript');
 var cb = callback.replace(/[^\[\]\w$.]/g, '');
 partOfResponse = 'typeof ' + cb + ' === \'function\' &amp;&amp; ' + cb + '(' + partOfResponse + ');\n';
 }
 res.write(partOfResponse);
}
</code></pre>

blocks|key|908809|text|const+http+=+require('http');
const+url+=+require('url');

http.createServer((req,res)=>{

++++const+parseObj+=++url.parse(req.url,true);
++++const+users+=+[{id:1,name:'soura'},{id:2,name:'soumya'}]

++++if(parseObj.pathname+==+'/user-details'+&&+req.method+==+"GET")+{
++++++++let+Id+=+parseObj.query.id;
++++++++let+user_details+=+{};
++++++++users.forEach((data,index)=>{
++++++++++++if(data.id+==+Id){
++++++++++++++++user_details+=+data;
++++++++++++}
++++++++})
++++++++res.writeHead(200,{'x-auth-token':'Auth+Token'})
++++++++res.write(JSON.stringify(user_details))+//+Json+to+String+Convert
++++++++res.end();
++++}
}).listen(8000);|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|908810|我已经在我现有的项目中使用了上述代码。|unstyled|908811|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$B|C]]|$1|D|3|E|5|F|7|J|8|@]|9|@]|A|$]]|$1|G|3|-4|5|F|7|K|8|@]|9|@]|A|$]]]|H|$]]

<pre><code>const http = require('http');
const url = require('url');

http.createServer((req,res)=&gt;{

 const parseObj = url.parse(req.url,true);
 const users = [{id:1,name:'soura'},{id:2,name:'soumya'}]

 if(parseObj.pathname == '/user-details' &amp;&amp; req.method == "GET") {
 let Id = parseObj.query.id;
 let user_details = {};
 users.forEach((data,index)=&gt;{
 if(data.id == Id){
 user_details = data;
 }
 })
 res.writeHead(200,{'x-auth-token':'Auth Token'})
 res.write(JSON.stringify(user_details)) // Json to String Convert
 res.end();
 }
}).listen(8000);
</code></pre>

I have used the above code in my existing project.

blocks|key|692799|text|JSON.stringify()方法将JavaScript对象或值转换为JSON字符串，如果指定了替换函数，则可以选择替换这些值；如果指定了替换数组，则可以选择仅包含指定的属性。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|692800|response.write(JSON.stringify({+x:+5,+y:+6+}));|code-block|syntax|javascript|692801|know+more|offset|length|692802|entityMap|0|LINK|mutability|MUTABLE|url|https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/JSON/stringify^0|0|0|0|9|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|T|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|U|8|@]|9|@$I|V|J|W|1|X]]|A|$]]|$1|K|3|-4|5|6|7|Y|8|@]|9|@]|A|$]]]|L|$M|$5|N|O|P|A|$Q|R]]]]

The JSON.stringify() method converts a JavaScript object or value to a JSON string, optionally replacing values if a replacer function is specified or optionally including only the specified properties if a replacer array is specified.
<pre><code>response.write(JSON.stringify({ x: 5, y: 6 }));
</code></pre>
<a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/JSON/stringify" rel="nofollow noreferrer">know more</a>

I'm a newb to back-end code and I'm trying to create a function that will respond to me a JSON string. I currently have this from an example

<pre><code>function random(response) {
 console.log("Request handler 'random was called.");
 response.writeHead(200, {"Content-Type": "text/html"});

 response.write("random numbers that should come in the form of json");
 response.end();
}
</code></pre>

This basically just prints the string "random numbers that should come in the form of JSON". What I want this to do is respond with a JSON string of whatever numbers. Do I need to put a different content-type? should this function pass that value to another one say on the client side?

Thanks for your help!

Responding with a JSON object in Node.js (converting object/array to JSON string)

JSON

我是后端代码的新手，我正在尝试创建一个函数来响应我的JSON字符串。我现在有一个例子function random(response) {  console.log("Request handler 'random was called.");  response.writeHead(200, {"Content-Ty...

问在Node.js中使用JSON对象进行响应(将对象/数组转换为JSON字符串)
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