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

如何验证请求是否来源于小程序（或微信）？ 微信的请求是否会进行加密？

iOS上，可以正确读取到每次蓝牙的开启和关闭 Android上，即使没有操作蓝牙开关，也会触发，而开启关闭蓝牙却很大几率不触发这个方法的回调，请尽快修复。

有人遇到么？求解决办法