PHP 输出json。
$result = mysql_query($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));
防止输出json数据乱码,把数据转为json
<?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;
Java把List集合中数据转成json数据格式
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