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JSP教程:JSP环境下的Ajax乱码问题解决方法

2017-6-7编辑:daibenhua

  AJAX传递中文字符串时必须把中文字符串编码成unicode,一般会用到JS的自带函数escape().不过找到了更好的函数来确决中文字符转换成unicode编码的函数

  function uniencode(text)

  {

  text = escape(text.toString()).replace(/\+/g, "+");

  var matches = text.match(/(%([0-9A-F]{2}))/gi);

  if (matches)

  {

  for (var matchid = 0; matchid < matches.length; matchid++)

  {

  var code = matches[matchid].substring(1,3);

  if (parseInt(code, 16) >= 128)

  {

  text = text.replace(matches[matchid], '%u00' + code);

  }

  }

  }

  text = text.replace('%', '%');

  return text;

  }

  当然服务器端要对编码过的字符串进行第二次转码.把字符串转换成UTF-8编码.

  function convert_int_to_utf8($intval)

  {

  $intvalintval = intval($intval);

  switch ($intval)

  {

  // 1 byte, 7 bits

  case 0:

  return chr(0);

  case ($intval & 0x7F):

  return chr($intval);

  // 2 bytes, 11 bits

  case ($intval & 0x7FF):

  return chr(0xC0 | (($intval >> 6) & 0x1F)) .

  chr(0x80 | ($intval & 0x3F));

  // 3 bytes, 16 bits

  case ($intval & 0xFFFF):

  return chr(0xE0 | (($intval >> 12) & 0x0F)) .

  chr(0x80 | (($intval >> 6) & 0x3F)) .

  chr (0x80 | ($intval & 0x3F));

  // 4 bytes, 21 bits

  case ($intval & 0x1FFFFF):

  return chr(0xF0 | ($intval >> 18)) .

  chr(0x80 | (($intval >> 12) & 0x3F)) .

  chr(0x80 | (($intval >> 6) & 0x3F)) .

  chr(0x80 | ($intval & 0x3F));

  }

  }

JSP教程:JSP内置对象及EL表达式及相关问题讲解

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