问如何从下一个Ajax请求中获取json数据？

EN

{"user_info":{"username":"Tara","password":"Tara","message":"","auth":1,"status":"Active",...

<button id="jsonp2" type="button" class="btn btn-info">Send JSONP Request</button>
<script>
  $(document).ready(function() {
    $("#jsonp2").click(function() {
      $.ajax({
        url: "http://linux-app.tv:8080/player_api.php?username=azmir&password=azmir&type=m3u",
        dataType: "jsonp",
        jsonp: "user_info",
        success: function(data) {
          alert("Username:" + data.username + "\npassword:" + data.password + "\nstatus:" + data.status);
        }
      });
    });
  });

  function user_info(data){
    alert("Username:" + data.username + "\npassword:" + data.password + "\nstatus:" + data.status);
  }
</script>