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新增打印模板绑定功能，支持业务与打印模板的映射配置。实现打印模板的增删改查操作，优化打印数据的生成逻辑，提升打印模板的灵活性和用户体验。同时，新增打印机查询接口，增强打印服务的可用性和实时性。

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This commit is contained in:
geht
2026-05-13 15:49:51 +08:00
parent 210f3614ea
commit c3f8190537
32 changed files with 2323 additions and 229 deletions
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16
jeecgboot-vue3/src/views/print/template/utils/printHtmlToPdfBase64.ts
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@@ -56,6 +56,11 @@ export type BuildPdfFromHtmlOptions = {
* false：整张版面压成一页 PDF（长图一页，一般仅特殊场景使用）。
*/
paginate?: boolean;
/**
* 是否严格使用入参纸张尺寸（默认 false 保持历史行为）。
* 原生模板桥接打印建议开启，避免内容测量误差把小标签纸扩成 A4。
*/
exactPaperSize?: boolean;
};
/**
@@ -70,6 +75,7 @@ export async function buildPdfBase64FromHtmlFragment(
options: BuildPdfFromHtmlOptions = {},
): Promise<string> {
const paginate = options.paginate !== false;
const exactPaperSize = options.exactPaperSize === true;
const [{ jsPDF }, html2canvasModule] = await Promise.all([import('jspdf'), import('html2canvas')]);
const html2canvas = html2canvasModule.default;
const container = document.createElement('div');
@@ -152,10 +158,11 @@ export async function buildPdfBase64FromHtmlFragment(
const pad = 1;
if (paginate) {
const sheetW = Math.max(widthMm, pxToMm(sw) + pad);
const sheetW = exactPaperSize ? Math.max(1, widthMm) : Math.max(widthMm, pxToMm(sw) + pad);
const sheetH = Math.max(1, heightMm);
const sliceH = Math.max(1, Math.round(mmToPx(sheetH) * scale));
const pdf = new jsPDF({ unit: 'mm', format: [sheetW, sheetH] });
const orientation = sheetW > sheetH ? 'landscape' : 'portrait';
const pdf = new jsPDF({ unit: 'mm', orientation, format: [sheetW, sheetH] });
let y = 0;
let first = true;
/** 余量不足一页高的 2% 时视为测量噪声，避免多出一页空白 */
@@ -193,7 +200,7 @@ export async function buildPdfBase64FromHtmlFragment(
// 单页长图模式（paginate: false）
const contentWidthMm = pxToMm(sw);
const contentHeightMm = pxToMm(sh);
const minW = Math.max(widthMm, contentWidthMm) + pad;
const minW = exactPaperSize ? Math.max(1, widthMm) : Math.max(widthMm, contentWidthMm) + pad;
const minH = Math.max(heightMm, contentHeightMm) + pad;
const canvasRatio = cw / ch;
let pdfH = Math.max(minH, minW / canvasRatio);
@@ -202,7 +209,8 @@ export async function buildPdfBase64FromHtmlFragment(
pdfW = minW;
pdfH = pdfW / canvasRatio;
}
const pdf = new jsPDF({ unit: 'mm', format: [pdfW, pdfH] });
const orientation = pdfW > pdfH ? 'landscape' : 'portrait';
const pdf = new jsPDF({ unit: 'mm', orientation, format: [pdfW, pdfH] });
const imgData = canvas.toDataURL('image/jpeg', 0.92);
pdf.addImage(imgData, 'JPEG', 0, 0, pdfW, pdfH);
return arrayBufferToBase64(pdf.output('arraybuffer'));