yoyo-ng-modulewindy/src/abc/xlsx/xlsx.service.js

服务于52ABP模板的前端开源的相关组件内容。整合了ng-alain和你NG ZORRO的内容

import { Injectable, Inject } from '@angular/core';
import { HttpClient } from '@angular/common/http';
import { saveAs } from 'file-saver';
import { LazyService } from 'yoyo-ng-module/util';
import { DA_XLSX_CONFIG, } from './interface';
var XlsxService = /** @class */ (function () {
    function XlsxService(config, http, lazy) {
        this.config = config;
        this.http = http;
        this.lazy = lazy;
    }
    XlsxService.prototype.init = function () {
        var config = Object.assign({
            url: "//cdn.bootcss.com/xlsx/0.12.12/xlsx.full.min.js",
            modules: [],
        }, this.config);
        return this.lazy.load([config.url].concat(config.modules));
    };
    XlsxService.prototype.read = function (wb) {
        var ret = {};
        wb.SheetNames.forEach(function (name) {
            var sheet = wb.Sheets[name];
            ret[name] = XLSX.utils.sheet_to_json(sheet, { header: 1 });
        });
        return ret;
    };
    /**
     * 导入Excel并输出JSON，支持 `<input type="file">`、URL 形式
     * @param rABS 加载数据方式 `readAsBinaryString` （默认） 或 `readAsArrayBuffer`，[更多细节](http://t.cn/R3n63A0)
     */
    XlsxService.prototype.import = function (fileOrUrl, rABS) {
        var _this = this;
        if (rABS === void 0) { rABS = 'readAsBinaryString'; }
        return new Promise(function (resolver, reject) {
            _this.init().then(function () {
                // from url
                if (typeof fileOrUrl === 'string') {
                    _this.http
                        .request('GET', fileOrUrl, { responseType: 'arraybuffer' })
                        .subscribe(function (res) {
                        var wb = XLSX.read(new Uint8Array(res), { type: 'array' });
                        resolver(_this.read(wb));
                    }, function (err) {
                        reject(err);
                    });
                    return;
                }
                // from file
                var reader = new FileReader();
                reader.onload = function (e) {
                    var wb = XLSX.read(e.target.result, { type: 'binary' });
                    resolver(_this.read(wb));
                };
                reader[rABS](fileOrUrl);
            });
        });
    };
    /** 导出 */
    XlsxService.prototype.export = function (options) {
        return this.init().then(function () {
            var wb = XLSX.utils.book_new();
            if (Array.isArray(options.sheets)) {
                options.sheets.forEach(function (value, index) {
                    var ws = XLSX.utils.aoa_to_sheet(value.data);
                    XLSX.utils.book_append_sheet(wb, ws, value.name || "Sheet" + (index + 1));
                });
            }
            else {
                wb.SheetNames = Object.keys(options.sheets);
                wb.Sheets = options.sheets;
            }
            if (options.callback)
                options.callback(wb);
            var wbout = XLSX.write(wb, Object.assign({
                bookType: 'xlsx',
                bookSST: false,
                type: 'array',
            }, options.opts));
            saveAs(new Blob([wbout], { type: 'application/octet-stream' }), options.filename || 'export.xlsx');
        });
    };
    XlsxService.decorators = [
        { type: Injectable },
    ];
    /** @nocollapse */
    XlsxService.ctorParameters = function () { return [
        { type: undefined, decorators: [{ type: Inject, args: [DA_XLSX_CONFIG,] }] },
        { type: HttpClient },
        { type: LazyService }
    ]; };
    return XlsxService;
}());
export { XlsxService };
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