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打印测试

lilei 3 years ago
parent
commit
842b9602af
1 changed files with 37 additions and 1 deletions
  1. 37 1
      src/libs/JGPrint.js

+ 37 - 1
src/libs/JGPrint.js

@@ -44,7 +44,7 @@ export const JGPrint = function(data, type, printerType){
     if (type == 'preview') { //  预览
       // window.open(url)
       const LODOP = getLodop(document.getElementById('LODOP_OB'), document.getElementById('LODOP_EM'))
-      LODOP.ADD_PRINT_PDF(0,0,"100%","100%",'https://jianguan-images.oss-cn-beijing.aliyuncs.com/helpvideo/1.pdf');
+      LODOP.ADD_PRINT_PDF(0,0,"100%","100%",demoDownloadPDF('https://jianguan-images.oss-cn-beijing.aliyuncs.com/helpvideo/1.pdf'));
       LODOP.SET_PRINT_STYLEA(0,"PDFScalMode",1);
       LODOP.SET_PRINT_PAGESIZE(3,0,0,"");
       LODOP.PREVIEW()
@@ -55,6 +55,42 @@ export const JGPrint = function(data, type, printerType){
   }
 }
 
+export const demoGetBASE64 = function (dataArray) {
+        var digits = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";
+        var strData = "";
+        for (var i = 0, ii = dataArray.length; i < ii; i += 3) {
+            if (isNaN(dataArray[i])) break;
+            var b1 = dataArray[i] & 0xFF, b2 = dataArray[i + 1] & 0xFF, b3 = dataArray[i + 2] & 0xFF;
+            var d1 = b1 >> 2, d2 = ((b1 & 3) << 4) | (b2 >> 4);
+            var d3 = i + 1 < ii ? ((b2 & 0xF) << 2) | (b3 >> 6) : 64;
+            var d4 = i + 2 < ii ? (b3 & 0x3F) : 64;
+            strData += digits.substring(d1, d1 + 1) + digits.substring(d2, d2 + 1) + digits.substring(d3, d3 + 1) + digits.substring(d4, d4 + 1);
+        }
+        return strData;
+    }
+// 下载pdf
+export const demoDownloadPDF = function (url){
+        if (!(/^https?:/i.test(url))) return;
+        if (window.XMLHttpRequest) var xhr = new XMLHttpRequest(); else var xhr = new ActiveXObject("MSXML2.XMLHTTP");
+        xhr.open('GET',url,false); //同步方式
+        if (xhr.overrideMimeType)
+        try{
+              xhr.responseType = 'arraybuffer';
+              var arrybuffer=true;
+        }catch(err){
+              xhr.overrideMimeType('text/plain; charset=x-user-defined');
+        }
+        xhr.send(null);
+        var data = xhr.response || xhr.responseBody;
+        if (typeof Uint8Array !== 'undefined') {
+              if (arrybuffer) var dataArray = new Uint8Array(data); else {
+                    var dataArray = new Uint8Array(data.length);
+                    for (var i = 0; i < dataArray.length; i++) {dataArray[i] = data.charCodeAt(i);}
+              }
+        } 
+        return demoGetBASE64(dataArray);
+    }
+
 // 导出下载excel
 export const downloadExcel = function (data,fileName){
    if (!data) { return }