Java parses php function json_encode unicode encoding problem
android开发中在和服务器端接口对接时出现编码问题，从服务器端获取到的数据是 "\u8bbe\u59071ID-\u8bbe\u59071\u540d\u79f0;\u8bbe\u59073id-\u8bbe\u59073\u540d\u79f0;\u8bbe\u59077id-\u8bbe\u59077\u540d\u79f0" 接口是通过php函数中json_encode进行编码后返回的，在客户端通过java.net.URLdecoder.decode()解码不管用，但是直接将以上字符串复制到decode()方法中可以正常解码，把接收到的字符串经过utf-8编码后不管用，最后在网上搜索相关资料找到解决方法。
一，json_encode作用：
json_encode — 对变量进行 JSON 编码。
说明：string json_encode ($value )，返回 value 值的 JSON 形式。
参数：待编码的 value ，除了resource 类型之外，可以为任何数据类型
该函数只能接受 UTF-8 编码的数据（译注：指字符/字符串类型的数据）
返回值：编码成功则返回一个以 JSON 形式表示的 string 。
二，客户端用java语言解码：
第一种方法
public String unescapeUnicode(String str){
StringBuffer b=new StringBuffer();
Matcher m = Pattern.compile("\\\\u([0-9a-fA-F]{4})").matcher(str);
while(m.find())
b.append((char)Integer.parseInt(m.group(1),16));
return b.toString();
}
直接使用unescapeUnicode()方法解码就可以了。
2. 使用 json_simple.jar 包解析
下载地址：http://www.jb51.net/softs/455885.html
JSON.simple是一个简单的Java类库，用于解析和生成JSON文本。不依赖于其它类库，性能高。
Object obj=JSONValue.parse(jsonStr);return obj.toString();
PHP服务器端解决方法：
<html>
<head><meta http-equiv="content-type" content="text/html;charset=utf-8">
<title>php生成 json 中文</title>
<?php
function arrayRecursive(&$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))
{
//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]);
}
}
}
$recursive_counter--;
}
function JSON($array)
{
//arrayRecursive($array, 'urlencode', true);
//print_r($array);
$json = json_encode($array);
return urldecode($json);
}
$array = array
(
'Name'=>urlencode('php生成 json 中文'),
'Age'=>20
);
echo JSON($array);
echo '</br>';
echo urlencode('php生成 json 中文');
?>
</body>
</html>
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