jQuery自动完成与JSON响应

$("#users-allowed").autocomplete("/people/following.json", {  width: 320,  dataType: 'json',  highlight: false,  scroll: true,  scrollHeight: 300,  parse: function(data) {    var array = new Array();    for(var i=0;i<data.items.length;i++) {      array[array.length] = { data: data.items[i], value: data.items[i], result: data.items[i].username };    }    return array;  },  formatItem: function(row) {        var name = '';    if (row.first_name && row.last_name)      name = '('+row.first_name+', '+row.last_name+')';    else if (row.first_name)      name = '('+row.first_name+')';    else if (row.last_name)      name = '('+row.last_name+')';    return row.username+' '+name;  }});

检查dataType和parse选项。