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    <p>You can use <code>google-gson</code>. Details:</p> <p><strong>Object Examples</strong></p> <pre><code>class BagOfPrimitives { private int value1 = 1; private String value2 = "abc"; private transient int value3 = 3; BagOfPrimitives() { // no-args constructor } } </code></pre> <p><strong>(Serialization)</strong></p> <pre><code>BagOfPrimitives obj = new BagOfPrimitives(); Gson gson = new Gson(); String json = gson.toJson(obj); ==&gt; json is {"value1":1,"value2":"abc"} </code></pre> <p>Note that you can not serialize objects with circular references since that will result in infinite recursion.</p> <p><strong>(Deserialization)</strong></p> <pre><code>BagOfPrimitives obj2 = gson.fromJson(json, BagOfPrimitives.class); ==&gt; obj2 is just like obj </code></pre> <p><em><strong>Another example for Gson:</em></strong></p> <p>Gson is easy to learn and implement, you need to know is the following two methods:</p> <p>-> toJson() – convert java object to JSON format</p> <p>-> fromJson() – convert JSON into java object</p> <pre><code>import com.google.gson.Gson; public class TestObjectToJson { private int data1 = 100; private String data2 = "hello"; public static void main(String[] args) { TestObjectToJson obj = new TestObjectToJson(); Gson gson = new Gson(); //convert java object to JSON format String json = gson.toJson(obj); System.out.println(json); } } </code></pre> <p><strong>Output</strong></p> <pre><code>{"data1":100,"data2":"hello"} </code></pre> <p><strong>Resources:</strong> </p> <p><a href="http://code.google.com/p/google-gson/">Google Gson Project Home Page</a> </p> <p><a href="http://sites.google.com/site/gson/gson-user-guide">Gson User Guide</a></p> <p><a href="http://www.mkyong.com/java/how-do-convert-java-object-to-from-json-format-gson-api/">Example</a></p>
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    1. POHow to convert jsonString to JSONObject in Java
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    1. CO*"If you are asking to process at client side it depends on your programming language. For example with Java you can use google-gson"* I think you probably meant "server" rather than "client" there. And he did tag his question "Java".
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    2. CO@T.J. Crowder thanks. I will remove the client part too.
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    3. CO+1. I've used Gson in 4-5 projects now, in quite different contexts, server and client side (also in Android app), and it has never failed me. Very nice & clean lib.
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