vue打印小票怎么实现

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lodop 打印控件

安装 lodop 打印控件

lodop地址: http://www.c-lodop.com/download.html

把

LodopFuncs.js

//==本JS是加载Lodop插件或Web打印服务CLodop/Lodop7的综合示例，可直接使用，建议理解后融入自己程序==
//用双端口加载主JS文件Lodop.js(或CLodopfuncs.js兼容老版本)以防其中某端口被占:
var  MainJS  =  "CLodopfuncs.js",
 URL_WS1  =  "ws://localhost:8000/"  +  MainJS,                //ws用8000/18000
 URL_WS2  =  "ws://localhost:18000/"  +  MainJS,
 URL_HTTP1  =  "http://localhost:8000/"  +  MainJS,              //http用8000/18000
 URL_HTTP2  =  "http://localhost:18000/"  +  MainJS,
 URL_HTTP3  =  "https://localhost.lodop.net:8443/"  +  MainJS; //https用8000/8443
var  CreatedOKLodopObject, CLodopIsLocal, LoadJsState;
//==判断是否需要CLodop(那些不支持插件的浏览器):==
export  function  needCLodop() {
 try {
 var  ua  =  navigator.userAgent;
 if (ua.match(/WindowssPhone/i) ||
 ua.match(/iPhone|iPod|iPad/i) ||
 ua.match(/Android/i) ||
 ua.match(/EdgeD?d+/i))
 return  true;
 var  verTrident  =  ua.match(/TridentD?d+/i);
 var  verIE  =  ua.match(/MSIED?d+/i);
 var  verOPR  =  ua.match(/OPRD?d+/i);
 var  verFF  =  ua.match(/FirefoxD?d+/i);
 var  x64  =  ua.match(/x64/i);
 if ((!verTrident) && (!verIE) && (x64)) return  true;
 else  if (verFF) {
 verFF  =  verFF[0].match(/d+/);
 if ((verFF[0] >=  41) || (x64)) return  true;
} else  if (verOPR) {
 verOPR  =  verOPR[0].match(/d+/);
 if (verOPR[0] >=  32) return  true;
} else  if ((!verTrident) && (!verIE)) {
 var  verChrome  =  ua.match(/ChromeD?d+/i);
 if (verChrome) {
 verChrome  =  verChrome[0].match(/d+/);
 if (verChrome[0] >=  41) return  true;
            }
        }
 return  false;
} catch (err) {
 return  true;
    }
}
//==检查加载成功与否，如没成功则用http(s)再试==
//==低版本CLODOP6.561/Lodop7.043及前)用本方法==
export  function  checkOrTryHttp() {
 if (window.getCLodop) {
 LoadJsState  =  "complete";
 return  true;
    }
 if (LoadJsState  ==  "loadingB"  ||  LoadJsState  ==  "complete") return;
 LoadJsState  =  "loadingB";
 var  head  =  document.head  ||  document.getElementsByTagName("head")[0] ||  document.documentElement;
 var  JS1  =  document.createElement("script")
, JS2  =  document.createElement("script")
, JS3  =  document.createElement("script");
 JS1.src  =  URL_HTTP1;
 JS2.src  =  URL_HTTP2;
 JS3.src  =  URL_HTTP3;
 JS1.onload  =  JS2.onload  =  JS3.onload  =  JS2.onerror  =  JS3.onerror  =  function () { LoadJsState  =  "complete"; }
 JS1.onerror  =  function (e) {
 if (window.location.protocol  !==  'https:')
 head.insertBefore(JS2, head.firstChild); else
 head.insertBefore(JS3, head.firstChild);
    }
 head.insertBefore(JS1, head.firstChild);
}
//==加载Lodop对象的主过程:==
(function  loadCLodop() {
 if (!needCLodop()) return;
 CLodopIsLocal  =  !!((URL_WS1  +  URL_WS2).match(///localho|//127.0.0./i));
 LoadJsState  =  "loadingA";
 if (!window.WebSocket  &&  window.MozWebSocket) window.WebSocket  =  window.MozWebSocket;
 //ws方式速度快(小于200ms)且可避免CORS错误,但要求Lodop版本足够新:
 try {
 var  WSK1  =  new  WebSocket(URL_WS1);
 WSK1.onopen  =  function (e) { setTimeout("checkOrTryHttp();", 200); }
 WSK1.onmessage  =  function (e) { if (!window.getCLodop) eval(e.data); }
 WSK1.onerror  =  function (e) {
 var  WSK2  =  new  WebSocket(URL_WS2);
 WSK2.onopen  =  function (e) { setTimeout("checkOrTryHttp();", 200); }
 WSK2.onmessage  =  function (e) { if (!window.getCLodop) eval(e.data); }
 WSK2.onerror  =  function (e) { checkOrTryHttp(); }
        }
} catch (e) {
 checkOrTryHttp();
    }
})();
//==获取LODOP对象主过程,判断是否安装、需否升级:==
export  function  getLodop(oOBJECT, oEMBED) {
 var  strFontTag  =  "<br><font color='#FF00FF'>打印控件";
 var  strLodopInstall  =  strFontTag  +  "未安装!点击这里<a href="https://www.19jp.com">

去掉测试版本

myPreview1() {
 // this.CreateImage();
 // this.LODOP.PRINT();
 let  LODOP  =  getLodop();
 console.log(' LODOP', LODOP)
 var  strHTML  =  document.getElementById("box").innerHTML;
 LODOP.PRINT_INIT("")
 LODOP.SET_LICENSES("", "EE0887D00FCC7D29375A695F728489A6", "C94CEE276DB2187AE6B65D56B3FC2848", ""); //去掉测试版本
 // LODOP.SET_PRINT_PAGESIZE(3, "80mm", "10mm", "CreateCustomPage"); //80打印机不需要加这行
 LODOP.SET_PRINT_STYLE("FontSize", 15); // 设置打印字体
 LODOP.SET_PRINT_STYLE("Bold", 1); // 设置加粗
 LODOP.SET_PRINT_MODE("PRINT_PAGE_PERCENT", "Height:90%");
 LODOP.SET_PRINT_MODE("PRINT_PAGE_PERCENT", "Full-Width");
 LODOP.ADD_PRINT_HTM(10, 10, "90%", "70%", strHTML);
 LODOP.PRINT();//
 // this.LODOP.PREVIEW()
        }

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