Which json library should I use to pass my array of objects (javascript) to the server (java) and vice versa?

I have an array of objects in javascript and I know that I need to use json to pass it to server, but I don't know which library I should use. I found 开发者_如何转开发in this post, that I have to use JSON.stringify() function; , but there's also a comment that says that JSON.stringify is not a standard function and I should use json2.js instead. What I'd like to know is :

1. Is there any pre-installed Json library in javascript?

2. Which is the best Json library I can use in javascript as well as in java.

3. And... if it´s not too much to ask... where can I get those libraries

thanks beforehand

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1. There is a JSON property in the global object for browsers using the ECMAScript v5 specification (Dec 09).
2. If it's in both Java and JavaScript then it's not the same library... Personally, I usually use Jackson in Java and ExtJS in Javascript.
3. Here and here. A much more lightweight js implementation can be found here.

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See http://en.wikipedia.org/wiki/JavaScript_Object_Notation#Using_JSON_in_Ajax and http://en.wikipedia.org/wiki/JavaScript_Object_Notation#Native_JSON.

JSON is supported natively in modern browsers (and in older browsers through eval(), but with possible security and perf implications). http://json.org/ provides a list of JSON libraries for older browsers where native JSON is not supported and the use of eval() is not a good idea.