$result = mysql_query($sql); //查询结果    $users=array();        $i=0;            while($row=mysql_fetch_array($result,MYSQL_ASSOC)){                $users[$i]=$row;                $i++;            }            echo json_encode(array("result"=>"success",‘data‘=>$users));

<?php/** *  function:输出Json格式 */class JSON{    public function encode($array) {        $this->arrayRecursive($array, ‘urlencode‘, true);        $json = json_encode($array);        return urldecode($json);    }    private function arrayRecursive(&$array, $function, $apply_to_keys_also = false)    {        static $recursive_counter = 0;        if (++$recursive_counter > 1000) {            die(‘possible deep recursion attack‘);        }        foreach ($array as $key => $value) {            if (is_array($value)) {                $this->arrayRecursive($array[$key], $function, $apply_to_keys_also);            } else {                $array[$key] = $function($value);            }            if ($apply_to_keys_also && is_string($key)) {                $new_key = $function($key);                if ($new_key != $key) {                    $array[$new_key] = $array[$key];                    unset($array[$key]);                }            }        }        $recursive_counter--;    }}//调用//    $result_arr = Array();//    $count = 0;//    while($row=mysql_fetch_array($result1,MYSQL_ASSOC)){//        array_push($result_arr, $row);//    }//    $json = new JSON; $out = $json->encode(array(‘result‘=>$result_arr));//    echo $out;

PrintWriter pw = response.getWriter();            pw.print("{\"result\":\"success\",\"json\":" + mapper.writeValueAsString(list) + "}");            pw.close();

//需要用到 jackson-all—1.7.6.jar包