write2DOCXField/index.html at master · linfengca/write2DOCXField · GitHub

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<!doctype html>
<html lang="zh-CN">
<head>
  <meta charset="utf-8" />
  <meta name="viewport" content="width=device-width, initial-scale=1" />
  <title>TXT 到 DOCX 域占位符写入</title>
  <style>
    :root {
      --bg: #f5f2ea;
      --ink: #1f1b16;
      --muted: #6f6358;
      --card: #ffffff;
      --accent: #2e6f72;
      --accent-2: #b77b45;
      --border: #e1d8cc;
      --shadow: 0 16px 40px rgba(31, 27, 22, 0.12);
    }
    * { box-sizing: border-box; }
    body {
      margin: 0;
      font-family: "Times New Roman", "Noto Serif SC", "Songti SC", serif;
      color: var(--ink);
      background: radial-gradient(circle at 10% 10%, #fef9f2 0%, #f5f2ea 35%, #efe6d8 100%);
    }
    header {
      padding: 28px 24px 12px;
      text-align: center;
    }
    header h1 {
      margin: 0 0 8px;
      font-size: 28px;
      letter-spacing: 1px;
    }
    header p {
      margin: 0;
      color: var(--muted);
      font-size: 14px;
    }
    main {
      max-width: 980px;
      margin: 0 auto;
      padding: 16px 24px 48px;
    }
    .panel {
      background: var(--card);
      border: 1px solid var(--border);
      border-radius: 16px;
      padding: 18px 20px;
      box-shadow: var(--shadow);
      margin-bottom: 18px;
    }
    .grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
      gap: 16px;
    }
    label {
      font-size: 13px;
      color: var(--muted);
      display: block;
      margin-bottom: 6px;
    }
    input[type="file"] {
      width: 100%;
      padding: 10px;
      border: 1px dashed var(--border);
      border-radius: 10px;
      background: #fbfaf7;
    }
    button {
      appearance: none;
      border: none;
      padding: 12px 18px;
      border-radius: 999px;
      font-size: 14px;
      font-weight: 600;
      letter-spacing: 0.5px;
      background: linear-gradient(120deg, var(--accent), #255b5e);
      color: #fff;
      cursor: pointer;
      box-shadow: 0 8px 20px rgba(46, 111, 114, 0.22);
    }
    button:disabled {
      opacity: 0.5;
      cursor: not-allowed;
    }
    .status {
      font-size: 13px;
      color: var(--muted);
      margin-top: 8px;
    }
    .list {
      border: 1px solid var(--border);
      border-radius: 12px;
      padding: 12px 14px;
      min-height: 120px;
      background: #fcfbf8;
    }
    .list ul {
      margin: 0;
      padding-left: 18px;
    }
    table {
      width: 100%;
      border-collapse: collapse;
      font-size: 13px;
    }
    th, td {
      text-align: left;
      padding: 8px 10px;
      border-bottom: 1px solid var(--border);
    }
    th {
      color: var(--muted);
      font-weight: 600;
    }
    .badge {
      display: inline-block;
      padding: 2px 8px;
      border-radius: 999px;
      background: #f2e6d6;
      color: var(--accent-2);
      font-size: 12px;
    }
    .download {
      margin-top: 10px;
      display: none;
    }
    .download a {
      color: var(--accent);
      text-decoration: none;
      font-weight: 600;
    }
  </style>
</head>
<body>
  <header>
    <h1>TXT → DOCX 域占位符写入</h1>
    <p>每行一条数据，填充文档中 5 个域占位符，并导出为 test_update.docx</p>
  </header>
  <main>
    <section class="panel grid">
      <div>
        <label for="txtFile">TXT 数据文件（每行一条）</label>
        <input id="txtFile" type="file" accept=".txt" />
      </div>
      <div>
        <label for="docxFile">DOCX 模板（包含 5 个占位符）</label>
        <input id="docxFile" type="file" accept=".docx" />
      </div>
      <div style="display:flex;align-items:flex-end;gap:12px;">
        <button id="processBtn" type="button" disabled>读取并生成</button>
      </div>
    </section>

    <section class="panel">
      <div class="grid">
        <div>
          <div style="display:flex;align-items:center;gap:8px;margin-bottom:8px;">
            <strong>读取到的数据</strong>
            <span class="badge" id="dataCount">0 条</span>
          </div>
          <div class="list" id="dataList">
            <ul></ul>
          </div>
        </div>
        <div>
          <div style="display:flex;align-items:center;gap:8px;margin-bottom:8px;">
            <strong>识别到的域占位符</strong>
            <span class="badge" id="placeholderCount">0 个</span>
          </div>
          <div class="list" id="placeholderList">
            <ul></ul>
          </div>
        </div>
      </div>
    </section>

    <section class="panel">
      <div style="display:flex;align-items:center;gap:8px;margin-bottom:10px;">
        <strong>写入映射（前 5 条数据）</strong>
        <span class="badge" id="mappingCount">0 项</span>
      </div>
      <table id="mappingTable">
        <thead>
          <tr>
            <th>占位符</th>
            <th>写入数据</th>
          </tr>
        </thead>
        <tbody></tbody>
      </table>
      <div class="status" id="statusText">请先选择 TXT 和 DOCX 文件。</div>
      <div class="download" id="downloadBox">
        <a id="downloadLink" href="#" download="test_update.docx">下载 test_update.docx</a>
      </div>
    </section>
  </main>

  <script src="https://unpkg.com/pizzip@3.1.7/dist/pizzip.min.js"></script>
  <script>
    const txtInput = document.getElementById("txtFile");
    const docxInput = document.getElementById("docxFile");
    const processBtn = document.getElementById("processBtn");
    const dataList = document.querySelector("#dataList ul");
    const placeholderList = document.querySelector("#placeholderList ul");
    const mappingTable = document.querySelector("#mappingTable tbody");
    const statusText = document.getElementById("statusText");
    const dataCount = document.getElementById("dataCount");
    const placeholderCount = document.getElementById("placeholderCount");
    const mappingCount = document.getElementById("mappingCount");
    const downloadBox = document.getElementById("downloadBox");
    const downloadLink = document.getElementById("downloadLink");

    let txtLines = [];
    let placeholders = [];
    let docxArrayBuffer = null;

    function updateButtonState() {
      processBtn.disabled = !(txtInput.files.length && docxInput.files.length);
    }

    function renderList(listEl, items) {
      listEl.innerHTML = "";
      if (!items.length) {
        listEl.innerHTML = "<li>暂无</li>";
        return;
      }
      items.forEach((item, idx) => {
        const li = document.createElement("li");
        li.textContent = `${idx + 1}. ${item}`;
        listEl.appendChild(li);
      });
    }

    function renderMapping(mapping) {
      mappingTable.innerHTML = "";
      const entries = Object.entries(mapping);
      mappingCount.textContent = `${entries.length} 项`;
      if (!entries.length) {
        const row = document.createElement("tr");
        row.innerHTML = "<td colspan='2'>暂无映射</td>";
        mappingTable.appendChild(row);
        return;
      }
      entries.forEach(([key, value]) => {
        const row = document.createElement("tr");
        row.innerHTML = `<td>${key}</td><td>${value}</td>`;
        mappingTable.appendChild(row);
      });
    }

    function normalizeLines(text) {
      const lines = text.replace(/\r/g, "").split("\n");
      if (lines.length && lines[lines.length - 1] === "") {
        lines.pop();
      }
      return lines;
    }

    const WORD_NS = "http://schemas.openxmlformats.org/wordprocessingml/2006/main";

    function parseXml(xmlText) {
      const parser = new DOMParser();
      return parser.parseFromString(xmlText, "application/xml");
    }

    function normalizeFieldName(raw) {
      const clean = raw.replace(/\s+/g, " ").trim();
      if (/MERGEFIELD/i.test(clean)) {
        const parts = clean.split(/\s+/);
        const idx = parts.findIndex((p) => /MERGEFIELD/i.test(p));
        return parts[idx + 1] || clean;
      }
      return clean.replace(/\s+/g, "");
    }

    function getFieldType(run) {
      const fldChar = run.getElementsByTagNameNS(WORD_NS, "fldChar")[0];
      if (!fldChar) return null;
      return (
        fldChar.getAttribute("w:fldCharType") ||
        fldChar.getAttributeNS(WORD_NS, "fldCharType") ||
        fldChar.getAttribute("fldCharType")
      );
    }

    function extractFieldsFromXml(xmlDoc) {
      const runs = Array.from(xmlDoc.getElementsByTagNameNS(WORD_NS, "r"));
      const fields = [];
      let collecting = false;
      let fieldName = "";
      let fieldRuns = [];
      let separateRun = null;

      runs.forEach((run) => {
        const type = getFieldType(run);
        const instr = run.getElementsByTagNameNS(WORD_NS, "instrText")[0];

        if (type === "begin") {
          collecting = true;
          fieldName = "";
          fieldRuns = [run];
          separateRun = null;
          return;
        }

        if (!collecting) return;

        if (instr && instr.textContent) {
          fieldName += instr.textContent;
        }

        fieldRuns.push(run);

        if (type === "separate") {
          separateRun = run;
        }

        if (type === "end") {
          const name = normalizeFieldName(fieldName);
          if (name) {
            fields.push({
              name,
              runs: fieldRuns,
              separateRun,
              endRun: run
            });
          }
          collecting = false;
        }
      });

      return fields;
    }

    function collectPlaceholders(zip) {
      const files = zip.file(/word\/.*\.xml/);
      const seen = new Set();
      const ordered = [];
      files.forEach((file) => {
        const xml = file.asText();
        const xmlDoc = parseXml(xml);
        const fields = extractFieldsFromXml(xmlDoc);
        fields.forEach((field) => {
          if (!seen.has(field.name)) {
            seen.add(field.name);
            ordered.push(field.name);
          }
        });
      });
      return ordered;
    }

    function setFieldValue(xmlDoc, field, value) {
      if (!field.separateRun || !field.endRun) return;
      const parent = field.endRun.parentNode;
      let node = field.separateRun.nextSibling;
      while (node && node !== field.endRun) {
        const next = node.nextSibling;
        parent.removeChild(node);
        node = next;
      }
      const run = xmlDoc.createElementNS(WORD_NS, "w:r");
      const text = xmlDoc.createElementNS(WORD_NS, "w:t");
      if (/^\s|\s$/.test(value)) {
        text.setAttributeNS(
          "http://www.w3.org/XML/1998/namespace",
          "xml:space",
          "preserve"
        );
      }
      text.textContent = value;
      run.appendChild(text);
      parent.insertBefore(run, field.endRun);
    }

    function updateDocxFields(zip, mapping) {
      const files = zip.file(/word\/.*\.xml/);
      files.forEach((file) => {
        const xml = file.asText();
        const xmlDoc = parseXml(xml);
        const fields = extractFieldsFromXml(xmlDoc);
        fields.forEach((field) => {
          if (Object.prototype.hasOwnProperty.call(mapping, field.name)) {
            setFieldValue(xmlDoc, field, mapping[field.name] ?? "");
          }
        });
        const serializer = new XMLSerializer();
        const newXml = serializer.serializeToString(xmlDoc);
        zip.file(file.name, newXml);
      });
    }

    txtInput.addEventListener("change", async () => {
      const file = txtInput.files[0];
      if (!file) {
        txtLines = [];
        renderList(dataList, txtLines);
        dataCount.textContent = "0 条";
        updateButtonState();
        return;
      }
      const text = await file.text();
      txtLines = normalizeLines(text);
      renderList(dataList, txtLines);
      dataCount.textContent = `${txtLines.length} 条`;
      updateButtonState();
    });

    docxInput.addEventListener("change", async () => {
      const file = docxInput.files[0];
      if (!file) {
        placeholders = [];
        docxArrayBuffer = null;
        renderList(placeholderList, placeholders);
        placeholderCount.textContent = "0 个";
        updateButtonState();
        return;
      }
      docxArrayBuffer = await file.arrayBuffer();
      const zip = new window.PizZip(docxArrayBuffer);
      placeholders = collectPlaceholders(zip);
      renderList(placeholderList, placeholders);
      placeholderCount.textContent = `${placeholders.length} 个`;
      updateButtonState();
    });

    processBtn.addEventListener("click", () => {
      downloadBox.style.display = "none";
      if (!docxArrayBuffer) {
        statusText.textContent = "未读取到 DOCX 文件。";
        return;
      }
      if (placeholders.length === 0) {
        statusText.textContent = "未识别到域占位符，请确认 DOCX 使用 Word 域（field code）。";
        renderMapping({});
        return;
      }

      const limitedPlaceholders = placeholders.slice(0, 5);
      const mapping = {};
      limitedPlaceholders.forEach((key, idx) => {
        mapping[key] = txtLines[idx] ?? "";
      });
      renderMapping(mapping);

      try {
        const zip = new window.PizZip(docxArrayBuffer);
        updateDocxFields(zip, mapping);
        const out = zip.generate({
          type: "blob",
          mimeType:
            "application/vnd.openxmlformats-officedocument.wordprocessingml.document"
        });
        const url = URL.createObjectURL(out);
        downloadLink.href = url;
        downloadBox.style.display = "block";

        const extraLine =
          placeholders.length !== 5
            ? `（检测到 ${placeholders.length} 个，占位符取前 5 个）`
            : "";
        statusText.textContent = `已写入并生成 test_update.docx ${extraLine}`;
      } catch (err) {
        statusText.textContent = `生成失败：${err.message || err}`;
      }
    });
  </script>
</body>
</html>