how to read a json stringfied object in servlet

Asked May 31 '15 at 00:41

Active May 31 '15 at 00:41

Viewed 18 times

I have a 2 dimensional array in javascript

arr[0][0]=1
arr[0][1]=2
arr[1][0]=3
arr[1][1]=4

Now i am converting the above array into a JSON String and setting this value to a hidden paramater

var jsonString = JSON.stringify(arr);
document.form2.hiddenValue2.value=jsonString;

In Servlet when i print the value of the JSON string it is displayed as below

String ab = request.getParameter("hiddenValue2");
System.out.println("ab"+ab);
//Output is
[["1","2"],["3","4"]]

My Question is how can i parse the above json string into java array or whatever is easy to proceed further with the values of the json String. I have checked similar questions but couldnt find a correct solution.. Help me..!!

asked May 31 '15 at 00:41

axn7975

You'll need a JSON parser. – nanofarad May 31 '15 at 00:44
I am new to JSON and have no idea how to parse it.. I have checked some solutions and tried using JSONSerializer.toJSON. I am getting invalid JSON String error. i doubt if that is the correct way of parsing..? Can you please correct me.. – axn7975 May 31 '15 at 00:53
No, you need a parser *from* JSON to a Java object. – nanofarad May 31 '15 at 00:59
Can you give me any example please.. – axn7975 May 31 '15 at 01:06

how to read a json stringfied object in servlet

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