表格导出excel-优快云博客

本文链接：https://blog.youkuaiyun.com/sisuiban/article/details/127555802

<!DOCTYPE html>
<html>
<head>
  <meta charset="UTF-8">
  <title>四岁导出</title>
</head>
<body>
  <button onclick="downloadExl(jsono)">导出</button>
  <a href="" download="我是导出来的测试文件.xlsx" id="downloadA"></a>
  <script src="https://cdnjs.cloudflare.com/ajax/libs/xlsx/0.18.5/xlsx.core.min.js"></script>
  <script>
    var jsono = [{
      "姓名": "四岁",
      "年龄": "22",
      "性别": "男"
    }, {
      "姓名": "老六",
      "年龄": "6",
      "性别": "男"
    }, {
      "姓名": "狗逼",
      "年龄": "3",
      "性别": "中性"
    }];

    var tmpDown;
    function downloadExl(json, type) {
      var tmpdata = json[0];
      json.unshift({});
      var keyMap = [];
      for (var k in tmpdata) {
        keyMap.push(k);
        json[0][k] = k;
      }
      var tmpdata = [];
      json.map(
        (v, i) => keyMap.map((k, j) => Object.assign({}, {
        v: v[k],
        position: (j > 25 ? getCharCol(j) : String.fromCharCode(65 + j)) + (i + 1)
      }))
      )
      .reduce((prev, next) => prev.concat(next)).forEach((v, i) => tmpdata[v.position] = {
        v: v.v
      });
      var outputPos = Object.keys(tmpdata);
      var tmpWB = {
        SheetNames: ['mySheet'],
        Sheets: {
          'mySheet': Object.assign({},
            tmpdata,
            {
              '!ref': outputPos[0] + ':' + outputPos[outputPos.length - 1]
            })
        }
      };
      tmpDown = new Blob([s2ab(XLSX.write(tmpWB,
        { bookType: (type == undefined ? 'xlsx' : type), bookSST: false, type: 'binary' }
      ))], {
        type: ""
      });
      var href = URL.createObjectURL(tmpDown);
      document.getElementById("downloadA").href = href;
      document.getElementById("downloadA").click();
      setTimeout(function () { 
        URL.revokeObjectURL(tmpDown);
      }, 100);
    }
    function s2ab(s) {
      var buf = new ArrayBuffer(s.length);
      var view = new Uint8Array(buf);
      for (var i = 0; i != s.length; ++i) view[i] = s.charCodeAt(i) & 0xFF;
      return buf;
    }
    function getCharCol(n) {
      let temCol = '',
        s = '',
        m = 0
      while (n > 0) {
        m = n % 26 + 1
        s = String.fromCharCode(m + 64) + s
        n = (n - m) / 26
      }
      return s
    }

  </script>
</body>

</html>