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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