微信小程序md5和后端md5值不一致问题
<!DOCTYPE html>
<html lang="zh-CN">
<head>
<meta charset="UTF-8">
<title>方案 2：crypto-js + UTF-8（.NET 用 UTF-8 时）</title>
<script src="https://cdn.jsdelivr.net/npm/crypto-js@4.2.0/crypto-js.min.js"></script>
</head>
<body>
<h3>方案 2：crypto-js + UTF-8</h3>
<div id="log"></div>
<script>
const targetStr = "
";
// 1. UTF-8 编码（对齐 .NET Encoding.UTF8）
const utf8Bytes = CryptoJS.enc.Utf8.parse(targetStr);
const bytesHex = utf8Bytes.toString(CryptoJS.enc.Hex).replace(/(..)/g, "$1-").slice(0, -1);
// 2. 计算 MD5（多格式输出）
const md5Hash = CryptoJS.MD5(utf8Bytes);
const md5_32_lower = md5Hash.toString(CryptoJS.enc.Hex);
const md5_32_upper = md5_32_lower.toUpperCase();
const md5_16_lower = md5_32_lower.slice(0, 16);
const md5_16_upper = md5_16_lower.toUpperCase();
// 输出
const log = `
<p>目标字符：${targetStr}</p>
<p>UTF-8 编码字节：<strong>${bytesHex}</strong>（与 .NET UTF-8 字节对比）</p>
<p>MD5 结果：</p>
<ul>
<li>32位小写：<span style="color:red;">${md5_32_lower}</span></li>
<li>32位大写：${md5_32_upper}</li>
<li>16位小写：${md5_16_lower}</li>
<li>16位大写：${md5_16_upper}</li>
</ul>
`;
document.getElementById("log").innerHTML = log;
console.log("方案2 完整结果：", { bytesHex, md5_32_lower, md5_32_upper, md5_16_lower, md5_16_upper });
</script>
</body>
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