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wx.request请求中文编码

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API和组件

wx.request发起的请求中,playload中的字段的中文是通过什么格式编码的?用utf8在服务端对中文字段进行md5编码后和前端生成md5串不一致,求大神解答。。。

md5加密算法如下:

/*
 * A JavaScript implementation of the RSA Data Security, Inc. MD5 Message
 * Digest Algorithm, as defined in RFC 1321.
 * Version 1.1 Copyright (C) Paul Johnston 1999 - 2002.
 * Code also contributed by Greg Holt
 * See http://pajhome.org.uk/site/legal.html for details.
 */ 
   
/*
 * Add integers, wrapping at 2^32. This uses 16-bit operations internally
 * to work around bugs in some JS interpreters.
 */ 
function safe_add(x, y) 
  var lsw = (x & 0xFFFF) + (y & 0xFFFF) 
  var msw = (x >> 16) + (y >> 16) + (lsw >> 16) 
  return (msw << 16) | (lsw & 0xFFFF) 
   
/*
 * Bitwise rotate a 32-bit number to the left.
 */ 
function rol(num, cnt) 
  return (num << cnt) | (num >>> (32 - cnt)) 
   
/*
 * These functions implement the four basic operations the algorithm uses.
 */ 
function cmn(q, a, b, x, s, t) 
  return safe_add(rol(safe_add(safe_add(a, q), safe_add(x, t)), s), b) 
function ff(a, b, c, d, x, s, t) 
  return cmn((b & c) | ((~b) & d), a, b, x, s, t) 
function gg(a, b, c, d, x, s, t) 
  return cmn((b & d) | (c & (~d)), a, b, x, s, t) 
function hh(a, b, c, d, x, s, t) 
  return cmn(b ^ c ^ d, a, b, x, s, t) 
function ii(a, b, c, d, x, s, t) 
  return cmn(c ^ (b | (~d)), a, b, x, s, t) 
   
/*
 * Calculate the MD5 of an array of little-endian words, producing an array
 * of little-endian words.
 */ 
function coreMD5(x) 
  var a =  1732584193 
  var b = -271733879 
  var c = -1732584194 
  var d =  271733878 
   
  for(var i = 0; i < x.length; i += 16) 
  
    var olda = a 
    var oldb = b 
    var oldc = c 
    var oldd = d 
   
    a = ff(a, b, c, d, x[i+ 0], 7 , -680876936) 
    d = ff(d, a, b, c, x[i+ 1], 12, -389564586) 
    c = ff(c, d, a, b, x[i+ 2], 17,  606105819) 
    b = ff(b, c, d, a, x[i+ 3], 22, -1044525330) 
    a = ff(a, b, c, d, x[i+ 4], 7 , -176418897) 
    d = ff(d, a, b, c, x[i+ 5], 12,  1200080426) 
    c = ff(c, d, a, b, x[i+ 6], 17, -1473231341) 
    b = ff(b, c, d, a, x[i+ 7], 22, -45705983) 
    a = ff(a, b, c, d, x[i+ 8], 7 ,  1770035416) 
    d = ff(d, a, b, c, x[i+ 9], 12, -1958414417) 
    c = ff(c, d, a, b, x[i+10], 17, -42063) 
    b = ff(b, c, d, a, x[i+11], 22, -1990404162) 
    a = ff(a, b, c, d, x[i+12], 7 ,  1804603682) 
    d = ff(d, a, b, c, x[i+13], 12, -40341101) 
    c = ff(c, d, a, b, x[i+14], 17, -1502002290) 
    b = ff(b, c, d, a, x[i+15], 22,  1236535329) 
   
    a = gg(a, b, c, d, x[i+ 1], 5 , -165796510) 
    d = gg(d, a, b, c, x[i+ 6], 9 , -1069501632) 
    c = gg(c, d, a, b, x[i+11], 14,  643717713) 
    b = gg(b, c, d, a, x[i+ 0], 20, -373897302) 
    a = gg(a, b, c, d, x[i+ 5], 5 , -701558691) 
    d = gg(d, a, b, c, x[i+10], 9 ,  38016083) 
    c = gg(c, d, a, b, x[i+15], 14, -660478335) 
    b = gg(b, c, d, a, x[i+ 4], 20, -405537848) 
    a = gg(a, b, c, d, x[i+ 9], 5 ,  568446438) 
    d = gg(d, a, b, c, x[i+14], 9 , -1019803690) 
    c = gg(c, d, a, b, x[i+ 3], 14, -187363961) 
    b = gg(b, c, d, a, x[i+ 8], 20,  1163531501) 
    a = gg(a, b, c, d, x[i+13], 5 , -1444681467) 
    d = gg(d, a, b, c, x[i+ 2], 9 , -51403784) 
    c = gg(c, d, a, b, x[i+ 7], 14,  1735328473) 
    b = gg(b, c, d, a, x[i+12], 20, -1926607734) 
   
    a = hh(a, b, c, d, x[i+ 5], 4 , -378558) 
    d = hh(d, a, b, c, x[i+ 8], 11, -2022574463) 
    c = hh(c, d, a, b, x[i+11], 16,  1839030562) 
    b = hh(b, c, d, a, x[i+14], 23, -35309556) 
    a = hh(a, b, c, d, x[i+ 1], 4 , -1530992060) 
    d = hh(d, a, b, c, x[i+ 4], 11,  1272893353) 
    c = hh(c, d, a, b, x[i+ 7], 16, -155497632) 
    b = hh(b, c, d, a, x[i+10], 23, -1094730640) 
    a = hh(a, b, c, d, x[i+13], 4 ,  681279174) 
    d = hh(d, a, b, c, x[i+ 0], 11, -358537222) 
    c = hh(c, d, a, b, x[i+ 3], 16, -722521979) 
    b = hh(b, c, d, a, x[i+ 6], 23,  76029189) 
    a = hh(a, b, c, d, x[i+ 9], 4 , -640364487) 
    d = hh(d, a, b, c, x[i+12], 11, -421815835) 
    c = hh(c, d, a, b, x[i+15], 16,  530742520) 
    b = hh(b, c, d, a, x[i+ 2], 23, -995338651) 
   
    a = ii(a, b, c, d, x[i+ 0], 6 , -198630844) 
    d = ii(d, a, b, c, x[i+ 7], 10,  1126891415) 
    c = ii(c, d, a, b, x[i+14], 15, -1416354905) 
    b = ii(b, c, d, a, x[i+ 5], 21, -57434055) 
    a = ii(a, b, c, d, x[i+12], 6 ,  1700485571) 
    d = ii(d, a, b, c, x[i+ 3], 10, -1894986606) 
    c = ii(c, d, a, b, x[i+10], 15, -1051523) 
    b = ii(b, c, d, a, x[i+ 1], 21, -2054922799) 
    a = ii(a, b, c, d, x[i+ 8], 6 ,  1873313359) 
    d = ii(d, a, b, c, x[i+15], 10, -30611744) 
    c = ii(c, d, a, b, x[i+ 6], 15, -1560198380) 
    b = ii(b, c, d, a, x[i+13], 21,  1309151649) 
    a = ii(a, b, c, d, x[i+ 4], 6 , -145523070) 
    d = ii(d, a, b, c, x[i+11], 10, -1120210379) 
    c = ii(c, d, a, b, x[i+ 2], 15,  718787259) 
    b = ii(b, c, d, a, x[i+ 9], 21, -343485551) 
   
    a = safe_add(a, olda) 
    b = safe_add(b, oldb) 
    c = safe_add(c, oldc) 
    d = safe_add(d, oldd) 
  
  return [a, b, c, d] 
   
/*
 * Convert an array of little-endian words to a hex string.
 */ 
function binl2hex(binarray) 
  var hex_tab = "0123456789abcdef" 
  var str = "" 
  for(var i = 0; i < binarray.length * 4; i++) 
  
    str += hex_tab.charAt((binarray[i>>2] >> ((i%4)*8+4)) & 0xF) + 
           hex_tab.charAt((binarray[i>>2] >> ((i%4)*8)) & 0xF) 
  
  return str 
   
/*
 * Convert an array of little-endian words to a base64 encoded string.
 */ 
function binl2b64(binarray) 
  var tab = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/" 
  var str = "" 
  for(var i = 0; i < binarray.length * 32; i += 6) 
  
    str += tab.charAt(((binarray[i>>5] << (i%32)) & 0x3F) | 
                      ((binarray[i>>5+1] >> (32-i%32)) & 0x3F)) 
  
  return str 
   
/*
 * Convert an 8-bit character string to a sequence of 16-word blocks, stored
 * as an array, and append appropriate padding for MD4/5 calculation.
 * If any of the characters are >255, the high byte is silently ignored.
 */ 
function str2binl(str) 
  var nblk = ((str.length + 8) >> 6) + 1 // number of 16-word blocks 
  var blks = new Array(nblk * 16) 
  for(var i = 0; i < nblk * 16; i++) blks[i] = 0 
  for(var i = 0; i < str.length; i++) 
    blks[i>>2] |= (str.charCodeAt(i) & 0xFF) << ((i%4) * 8) 
  blks[i>>2] |= 0x80 << ((i%4) * 8) 
  blks[nblk*16-2] = str.length * 8 
  return blks 
   
/*
 * Convert a wide-character string to a sequence of 16-word blocks, stored as
 * an array, and append appropriate padding for MD4/5 calculation.
 */ 
function strw2binl(str) 
  var nblk = ((str.length + 4) >> 5) + 1 // number of 16-word blocks 
  var blks = new Array(nblk * 16) 
  for(var i = 0; i < nblk * 16; i++) blks[i] = 0 
  for(var i = 0; i < str.length; i++) 
    blks[i>>1] |= str.charCodeAt(i) << ((i%2) * 16) 
  blks[i>>1] |= 0x80 << ((i%2) * 16) 
  blks[nblk*16-2] = str.length * 16 
  return blks 
   
/*
 * External interface
 */ 
function hexMD5 (str) { return binl2hex(coreMD5( str2binl(str))) } 
function hexMD5w(str) { return binl2hex(coreMD5(strw2binl(str))) } 
function b64MD5 (str) { return binl2b64(coreMD5( str2binl(str))) } 
function b64MD5w(str) { return binl2b64(coreMD5(strw2binl(str))) } 
/* Backward compatibility */ 
function calcMD5(str) { return binl2hex(coreMD5( str2binl(str))) } 
module.exports = { 
  hexMD5: hexMD5 
}


最后一次编辑于  2017-08-25  (未经腾讯允许,不得转载)
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1 个回答

  • 大伙子~🤧
    大伙子~🤧
    2017-12-26

    您好,我这边遇到了同样的问题,请问您是怎么解决的?

    2017-12-26
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