从$ .post（）检索json数组

Question

<script>
$(document).ready(function(){
  $("#asd").click(function(){
    $.post("/sister/rest/rest/login",
    {
      email:"t@s.com",
      pwd:11
    },
    function(data){
      $('#id3').append(data.user_fullname);
    });
  });
});

</script>

when i cliked the #asd, #id3 shows "ch", the json array from /sister/rest/rest/login [{"user_id":"1","user_fullname":"ch","user_email":"t@s.com"}]

when i tried the $('#id3').append(data[0].user_fullname); it showed nothing :(, why?

im newbie in getting json data, so please help me! Thank you all

Answer 1

You need to parse the JSON object before trying to pull out the elements. You do this by using JSON.parse()

<script>

$(document).ready(function(){
  $("#asd").click(function(){
    $.post("/sister/rest/rest/login",
    {
      email:"t@s.com",
      pwd:11
    },
    function(data){
      data = JSON.parse(data);
      $('#id3').append(data.user_fullname);
    });
  });
});

</script>

Answer 2

[{"user_id":"1","user_fullname":"ch","user_email":"t@s.com"}

Looks like you are missing a closing tag.

[{"user_id":"1","user_fullname":"ch","user_email":"t@s.com"}]

I use JSONLint to quickly validate JSON and determine where is the issue.