blocks|key|3525616|text|您应该使用jQuery.parseJSON。它将使用native+JSON+(如果可用)，并且仅在必要时使用eval，并在健康检查后使用。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|3525617|entityMap|0|LINK|mutability|MUTABLE|url|http://api.jquery.com/jQuery.parseJSON/|1|https://developer.mozilla.org/En/Using_JSON_in_Firefox^0|5|G|1I|4|5|G|0|Q|B|1|0^^$0|@$1|2|3|4|5|6|7|P|8|@$9|Q|A|R|B|C]|$9|S|A|T|B|C]]|D|@$9|U|A|V|1|W]|$9|X|A|Y|1|Z]]|E|$]]|$1|F|3|-4|5|6|7|10|8|@]|D|@]|E|$]]]|G|$H|$5|I|J|K|E|$L|M]]|N|$5|I|J|K|E|$L|O]]]]

You should use <a href="http://api.jquery.com/jQuery.parseJSON/" rel="nofollow"><code>jQuery.parseJSON</code></a>. It will use <a href="https://developer.mozilla.org/En/Using_JSON_in_Firefox" rel="nofollow">native JSON</a> if available, and only use <code>eval</code> if necessary, after a sanity check.

blocks|key|3525651|text|使用JSON.parse+(从http://json.org重定向)，或者使用MDN|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|3525652|entityMap|0|LINK|mutability|MUTABLE|url|http://www.ecma-international.org/ecma-262/10.0/index.html#sec-json.parse|1|http://json.org/|2|https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/JSON/parse^0|2|A|0|F|F|1|13|3|2|0^^$0|@$1|2|3|4|5|6|7|P|8|@]|9|@$A|Q|B|R|1|S]|$A|T|B|U|1|V]|$A|W|B|X|1|Y]]|C|$]]|$1|D|3|-4|5|6|7|Z|8|@]|9|@]|C|$]]]|E|$F|$5|G|H|I|C|$J|K]]|L|$5|G|H|I|C|$J|M]]|N|$5|G|H|I|C|$J|O]]]]

Use <a href="http://www.ecma-international.org/ecma-262/10.0/index.html#sec-json.parse" rel="nofollow noreferrer">JSON.parse</a> (redirected from <a href="http://json.org" rel="nofollow noreferrer">http://json.org</a>), alternatively <a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/JSON/parse" rel="nofollow noreferrer">MDN</a>

blocks|key|5637674|text|Json已经是一些javascript了。所以解析就是使用eval|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|5637675|像这样：|5637676|+var+foobar+=+eval(yourjson);
+alert(foobar.user);|code-block|syntax|javascript|5637677|此外，jquery还具有一些用于它的函数jquery.parseJSON。|5637678|5637679|+++var+foobar+=+$.parseJSON(yourjson);|5637680|Jquery更好，因为它会进行一些检查，性能也会更好。|5637681|entityMap|0|LINK|mutability|MUTABLE|url|http://api.jquery.com/jQuery.parseJSON/^0|T|4|0|0|0|K|G|K|G|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|11|8|@$9|12|A|13|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|14|8|@]|D|@]|E|$]]|$1|H|3|I|5|J|7|15|8|@]|D|@]|E|$K|L]]|$1|M|3|N|5|6|7|16|8|@$9|17|A|18|B|C]]|D|@$9|19|A|1A|1|1B]]|E|$]]|$1|O|3|G|5|6|7|1C|8|@]|D|@]|E|$]]|$1|P|3|Q|5|J|7|1D|8|@]|D|@]|E|$K|L]]|$1|R|3|S|5|6|7|1E|8|@]|D|@]|E|$]]|$1|T|3|-4|5|6|7|1F|8|@]|D|@]|E|$]]]|U|$V|$5|W|X|Y|E|$Z|10]]]]

Json is already some javascript. so parsing is just using <code>eval</code>

like: 

<pre><code> var foobar = eval(yourjson);
 alert(foobar.user);
</code></pre>

Also jquery has some function for it <a href="http://api.jquery.com/jQuery.parseJSON/" rel="nofollow"><code>jquery.parseJSON</code></a>

like: 

<pre><code> var foobar = $.parseJSON(yourjson);
</code></pre>

Jquery is better because it would make some checks and perform better.

blocks|key|3525783|text|首先，下载jQuery。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|3525784|其次，把它包含在你的页面中。|3525785|第三，如果你的变量是：|3525786|var+jsonString+=+'{"user":{"id":"1","firstname":"Freelogin","created":"0000-00-00+00:00:00","lastname":"Administrator","email":"fred@websecurify.com",+"usergroup_id":"1","status":"1","ip_enable":"N","priv":"0","expire":""},"data":{+"1":{"5":{"last_update":"2010-12-13+16:16:16","status":"0"},"3":{"last_update":"2010-12-13+16:41:48","status":"1"}},"2":{"6":{"last_update":"2010-12-13+16:41:48","status":"1"}}},"server_array":[{"id":"1","name":"anes.yyy.net"},{+"id":"2","name":"neseema.xxx.net"}],"service_array":[{"id":"5","name":"POP3"},+{"id":"6","name":"Cpanel"},{"id":"3","name":"SMTP"}],"sort_by":"servername",+"sort_order":"ASC","pagelinks":"","totrows":"2","offset":"0","limitvalue":"10",+"rows_monitor":2,"current":"monitor","uri":false}';|code-block|syntax|javascript|3525787|然后,|3525788|var+parsedJson+=+jQuery.parseJSON(jsonString);|3525789|将为您提供所需的已解析对象，并准备好进行操作。|3525790|我在JSONLint上试用了您的JSON字符串，它显示它是有效的，所以您应该不会有任何问题。|3525791|entityMap|0|LINK|mutability|MUTABLE|url|http://jquery.com/|1|http://www.jsonlint.com/^0|5|6|0|0|0|0|0|0|0|0|2|8|1|0^^$0|@$1|2|3|4|5|6|7|14|8|@]|9|@$A|15|B|16|1|17]]|C|$]]|$1|D|3|E|5|6|7|18|8|@]|9|@]|C|$]]|$1|F|3|G|5|6|7|19|8|@]|9|@]|C|$]]|$1|H|3|I|5|J|7|1A|8|@]|9|@]|C|$K|L]]|$1|M|3|N|5|6|7|1B|8|@]|9|@]|C|$]]|$1|O|3|P|5|J|7|1C|8|@]|9|@]|C|$K|L]]|$1|Q|3|R|5|6|7|1D|8|@]|9|@]|C|$]]|$1|S|3|T|5|6|7|1E|8|@]|9|@$A|1F|B|1G|1|1H]]|C|$]]|$1|U|3|-4|5|6|7|1I|8|@]|9|@]|C|$]]]|V|$W|$5|X|Y|Z|C|$10|11]]|12|$5|X|Y|Z|C|$10|13]]]]

First, download <a href="http://jquery.com/" rel="nofollow">jQuery</a>.

Second, include it in your page.

Third, if your variable is this:

<pre><code>var jsonString = '{"user":{"id":"1","firstname":"Freelogin","created":"0000-00-00 00:00:00","lastname":"Administrator","email":"fred@websecurify.com", "usergroup_id":"1","status":"1","ip_enable":"N","priv":"0","expire":""},"data":{ "1":{"5":{"last_update":"2010-12-13 16:16:16","status":"0"},"3":{"last_update":"2010-12-13 16:41:48","status":"1"}},"2":{"6":{"last_update":"2010-12-13 16:41:48","status":"1"}}},"server_array":[{"id":"1","name":"anes.yyy.net"},{ "id":"2","name":"neseema.xxx.net"}],"service_array":[{"id":"5","name":"POP3"}, {"id":"6","name":"Cpanel"},{"id":"3","name":"SMTP"}],"sort_by":"servername", "sort_order":"ASC","pagelinks":"","totrows":"2","offset":"0","limitvalue":"10", "rows_monitor":2,"current":"monitor","uri":false}';
</code></pre>

then, 

<pre><code>var parsedJson = jQuery.parseJSON(jsonString);
</code></pre>

will give you the desired parsed object that's ready for manipulation.

I tried out your JSON string on <a href="http://www.jsonlint.com/" rel="nofollow">JSONLint</a> and it says it's valid, so you should have no problems with it.

blocks|key|5637780|text|您可能在某些字符串变量中获得了json|type|unstyled|depth|inlineStyleRanges|entityRanges|data|5637781|var+json+=+'{"user":{"id":"1","firstname":"Freelogin","created":"0000-00-00+00:00:00","lastname":"Administrator","email":"fred@websecurify.com",+"usergroup_id":"1","status":"1","ip_enable":"N","priv":"0","expire":""},"data":{+"1":{"5":{"last_update":"2010-12-13+16:16:16","status":"0"},"3":{"last_update":"2010-12-13+16:41:48","status":"1"}},"2":{"6":{"last_update":"2010-12-13+16:41:48","status":"1"}}},"server_array":[{"id":"1","name":"anes.yyy.net"},{+"id":"2","name":"neseema.xxx.net"}],"service_array":[{"id":"5","name":"POP3"},+{"id":"6","name":"Cpanel"},{"id":"3","name":"SMTP"}],"sort_by":"servername",+"sort_order":"ASC","pagelinks":"","totrows":"2","offset":"0","limitvalue":"10",+"rows_monitor":2,"current":"monitor","uri":false}';|code-block|syntax|javascript|5637782|现在你可以很容易地通过jQuery解析它(你也可以通过原生的javaScript+eval解析它，但有一些安全问题，格式糟糕的输入字符串f.e.，它包含在jQuery中，而不是eval中)|5637783|result+=+jQuery.parseJSON(json);|5637784|现在，您可以轻松地访问json对象。|5637785|alert('Hello+user,+your+name+is+'+%2B+json.user.firstname);|5637786|entityMap^0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|R|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|S|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|T|8|@]|9|@]|A|$E|F]]|$1|K|3|L|5|6|7|U|8|@]|9|@]|A|$]]|$1|M|3|N|5|D|7|V|8|@]|9|@]|A|$E|F]]|$1|O|3|-4|5|6|7|W|8|@]|9|@]|A|$]]]|P|$]]

you probably got your json in som String variable

<pre><code>var json = '{"user":{"id":"1","firstname":"Freelogin","created":"0000-00-00 00:00:00","lastname":"Administrator","email":"fred@websecurify.com", "usergroup_id":"1","status":"1","ip_enable":"N","priv":"0","expire":""},"data":{ "1":{"5":{"last_update":"2010-12-13 16:16:16","status":"0"},"3":{"last_update":"2010-12-13 16:41:48","status":"1"}},"2":{"6":{"last_update":"2010-12-13 16:41:48","status":"1"}}},"server_array":[{"id":"1","name":"anes.yyy.net"},{ "id":"2","name":"neseema.xxx.net"}],"service_array":[{"id":"5","name":"POP3"}, {"id":"6","name":"Cpanel"},{"id":"3","name":"SMTP"}],"sort_by":"servername", "sort_order":"ASC","pagelinks":"","totrows":"2","offset":"0","limitvalue":"10", "rows_monitor":2,"current":"monitor","uri":false}';
</code></pre>

now you can easily parse it via jQuery (you also can parse it via native javaScript eval, but there are some security issues, badly formated input string f.e., that is covered with jQuery and not in eval)

<pre><code>result = jQuery.parseJSON(json);
</code></pre>

Now you can easily acces your json object

<pre><code>alert('Hello user, your name is ' + json.user.firstname);
</code></pre>

blocks|key|2377170|text|您不需要jQuery，在ECMAScript5中，JSON对象将被本机支持，使用它，您可以使用JSON.parse方法将字符串解析为JS对象。IE9将支持ES5和FF，Chrome已经支持。|type|unstyled|depth|inlineStyleRanges|offset|length|style|BOLD|entityRanges|data|2377171|目前，您可以使用json2.js+(您可以查看源代码here)作为本地不支持JSON的浏览器的后备。|2377172|entityMap|0|LINK|mutability|MUTABLE|url|http://github.com/douglascrockford/JSON-js^0|C|B|1B|A|0|Q|4|0|0^^$0|@$1|2|3|4|5|6|7|P|8|@$9|Q|A|R|B|C]|$9|S|A|T|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|U|8|@]|D|@$9|V|A|W|1|X]]|E|$]]|$1|H|3|-4|5|6|7|Y|8|@]|D|@]|E|$]]]|I|$J|$5|K|L|M|E|$N|O]]]]

You don't need jQuery, in ECMAScript5 JSON object will be supported natively and with it you can use JSON.parse method to parse a string into a JS object. IE9 will support ES5 and FF and Chrome already do. 

For the moment you can use json2.js (you can look at the source <a href="http://github.com/douglascrockford/JSON-js" rel="nofollow">here</a>) as fallback for the browsers that don't support JSON natively.

I am really stuck in parsing a JSON string and take it's values. I got the JSON string as 

<pre><code>{"user":{"id":"1","firstname":"Freelogin","created":"0000-00-00 00:00:00","lastname":"Administrator","email":"fred@websecurify.com", "usergroup_id":"1","status":"1","ip_enable":"N","priv":"0","expire":""},"data":{ "1":{"5":{"last_update":"2010-12-13 16:16:16","status":"0"},"3":{"last_update":"2010-12-13 16:41:48","status":"1"}},"2":{"6":{"last_update":"2010-12-13 16:41:48","status":"1"}}},"server_array":[{"id":"1","name":"anes.yyy.net"},{ "id":"2","name":"neseema.xxx.net"}],"service_array":[{"id":"5","name":"POP3"}, {"id":"6","name":"Cpanel"},{"id":"3","name":"SMTP"}],"sort_by":"servername", "sort_order":"ASC","pagelinks":"","totrows":"2","offset":"0","limitvalue":"10", "rows_monitor":2,"current":"monitor","uri":false}
</code></pre>

How to Parse this and take the Results for further
processing in JavaScript

How to parse JSON in JavaScript to take value

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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我真的被困在解析JSON字符串并获取它的值上了。我得到的JSON字符串是{"user":{"id":"1","firstname":"Freelogin","created":"0000-00-00 00:00:00","lastname":"Administrator","email":"fred@websecurify.com", "usergroup_id":"1","status":"1"

问如何在JavaScript中解析JSON以获取值
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