需要使用JavaScript解析Json字符串

Question

I have my json value coming from java, as

var obj = "[{"id":"58","str":"sd <p/> Comment By Smith John on 2012-10-30"},{"id":"58","str":"sd <p/> Comment By Smith John on 2012-10-30"},{"id":"58","str":"sd <p/> Comment By Smith John on 2012-10-30"},{"id":"58","str":"sd <p/> Comment By Smith John on 2012-10-30"},{"id":"58","str":"sd <p/> Comment By Smith John on 2012-10-30"},{"id":"58","str":"sd <p/> Comment By Smith John on 2012-10-30"},{"id":"58","str":"sd <p/> Comment By Smith John on 2012-10-30"},{"id":"58","str":"sd <p/> Comment By Smith John on 2012-10-30"}] ".

I want to parse using jquery as $.parseJSON(obj);

I am getting error as undefined. I want to get the id value.

I included the jquery-ui.js and jquery.js.

I checked in the jsonlint and get it as valid json.

Answer 1

JavaScript strings containing " characters must be either delimited by ' character or have the " escaped as \\" .

With your current code you should have errors trying to parse the JS that attempts to instantiate obj before it complains that obj is undefined .

Answer 2

please add the escape params for the string first like the below.

var obj = "[{\"id\":\"58\",\"str\":\"sd <p/> Comment By Smith John on 2012-10-30\"},{\"id\":\"58\",\"str\":\"sd <p/> Comment By Smith John on 2012-10-30\"}]"

and then take the parsed object to a variable and access the id in the below manner..

var tmp = $.parseJSON(obj); tmp[1].id;

hope you got the answer.