使用攻略

• 参考文档
  https://printjs.crabbly.com/
• 分页
  使用css的 page-break-after:always 来控制在某个DIV之后新开一个页面

<div style="page-break-after:always">我是封面</div>
<div style="page-break-after:always">我是目录，你不知道我的内容有多长</div>
<div>我是正文，我需要从一个新页面开始展示</div>

• 标题栏每页重复打印
  因为打印时，表格中的thead和tfoot默认会在每一页重复打印，所以只要设置好表格结构就行。

html打印

<div id="printJS-table">
    <table class="printTable" style="width: 100%; text-align: center" border="0">
      <thead>
        <tr class="maintitle">
          <td :colspan="columns.length">
            <span style="font-size: 20px">{{ modelRef.hospitalName }} 标本阳性率报表</span>
          </td>
        </tr>
        <tr class="subtitle">
          <td :colspan="2">
            统计时间:{{ modelRef.inlineForm.timeSpan[0].format('YYYY/MM/DD') }}-{{
              modelRef.inlineForm.timeSpan[1].format('YYYY/MM/DD')
            }}
          </td>
          <td :colspan="columns.length - 4">制表人：{{ modelRef.username }}</td>
          <td :colspan="2">打印时间:{{ moment().format('YYYY/MM/DD') }}</td>
        </tr>
        <tr class="header">
          <th v-for="item in columns" width="">{{ item.title }}</th>
        </tr>
      </thead>
      <tbody>
        <tr
          v-for="(row, index) in printDatalist"
          :class="{ strongRow: row.sampletype == '合计' }"
        >
          <td
            :class="{ lastRow: printDatalist.length == index + 1 }"
            v-for="column in columns"
          >
            {{ row[column.dataIndex] }}
          </td>
        </tr>
      </tbody>
    </table>
  </div>

  const handlePrint1 = () => {
   printJS({
     printable: 'printJS-table',
     type: 'html',
     // targetStyles: ['*'],
     // headerStyle: 'font-size:20px',
     style: `
     @page {  
       margin: 0.5cm; margin-right: 0.5cm; margin-top: 0.5cm; margin-bottom: 0.3cm; padding-bottom: 0px;}
     .printTable thead .maintitle {
       text-align: center;
       font-size: 20px;
     }
     .printTable thead .subtitle {
       text-align: center;
       font-size: 13px;
     }
     .printTable thead .header th {
       border-top: 1px solid #000;
       border-right: 1px solid #000;
     }
     .printTable thead .header th:nth-child(1) {
       border-left: 1px solid #000;
     }
     tbody td {
       border: 1px solid #000;
     }
     .printTable tbody .strongRow {
       font-weight: bold;
     }
     tbody {
       text-align: center;
     }
     table {
       border-collapse: collapse;
     }
     `,
   });
 };

以json格式打印

    const handlePrint = () => {
      let printColumns = columns.value.map((ele: any) => {
        return {
          field: ele.dataIndex,
          displayName: ele.title,
        };
      });
      printJS({
        printable: dataSource.value,
        maxWidth: 2500,
        properties: printColumns,
        header: `
          <div class="titleDiv">
            <div class="title">${modelRef.hospitalName} 标本阳性率报表</div>
            <div class="subtitle">
              <div class="label">
                &nbsp;统计时间：${modelRef.inlineForm.timeSpan[0].format(
                  'YYYY/MM/DD',
                )}-${modelRef.inlineForm.timeSpan[1].format('YYYY/MM/DD')}
              </div>
              <div class="label">制表人：${modelRef.username}</div>
              <div class="label">打印时间：${moment().format('YYYY/MM/DD')}&nbsp;</div>
            </div>
          </div>
        `,
        //size: landscape;
        style: `@page {  margin: 0.5cm; margin-right: 0.5cm; margin-top: 0.5cm; margin-bottom: 0.3cm; padding-bottom: 0px; }
          .title {
            margin-top: 10px;
            font-size: 20px;
            text-align: center;
            padding:10px;
          }
          .subtitle {
            display: flex;
            justify-content: space-between;
            font-size: 16px;
            padding:10px;
          }
          .subtitle .label {
            flex: 1;
            font-size: 14px;
          }
          .subtitle .label:nth-child(2) {
            text-align: center;
          }
          .subtitle .label:nth-child(3) {
            text-align: right;
          }
      
          `,
        gridStyle: 'text-align: center; border: 1px solid black;',
        gridHeaderStyle:
          'border-top: 1px solid black; border-right: 1px solid black; border-left: 1px solid black; border-bottom: 0px;',
        type: 'json',
      });

    };

参数