unzip.ts 2.5 KB

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  1. /*
  2. * *********************************************************************************************************************
  3. *
  4. * !!
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  13. * ~888888%: .I888888l .]88~`1/iY88Ii+1'.R$8$8]"888888888> Y8$ W8E X8E W8888'188Il}Y88$*
  14. * 18888888 E8888881 .]W%8$`R8X'&8%++N8i,8N%N8+l8%` .}8N:.R$RE%N88N%N$K$R 188,FE$8%~Y88I
  15. * .E888888I .i8888888' .:$8I;88+`E8R:/8N,.>881.`$8E/1/]N8X.Y8N`"KF&&FK!'88*."88K./$88%RN888+~
  16. * 8888888I .,N888888~ ~88i"8W,!N8*.I88.}888%F,i$88"F88" 888:E8X.>88!i88>`888*.}Fl1]*}1YKi'
  17. * i888888N' I888Y ]88;/EX*IFKFK88X K8R .l8W 88Y ~88}'88E&%8W.X8N``]88!.$8K .:W8I
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  19. * .:R888888I
  20. * .&888888I Copyright (c) 2009-2020. 博锐尚格科技股份有限公司
  21. * ~8888'
  22. * .!88~ All rights reserved.
  23. *
  24. * *********************************************************************************************************************
  25. */
  26. import unzipBase64 from "./unzipBase64";
  27. /**
  28. * 解压数据
  29. *
  30. * @param blob 文件
  31. * @param flag 是否返回原始文件数据
  32. * @return 解压后的数据
  33. */
  34. export default function unzip(blob: any, flag = false): any {
  35. let reader = new FileReader();
  36. reader.readAsBinaryString(blob);
  37. return new Promise(resolve => {
  38. reader.onload = (readerEvt: any) => {
  39. let binaryString = readerEvt.target.result;
  40. //解压数据
  41. let base64Data = btoa(binaryString);
  42. try {
  43. let unGzipData = unzipBase64(base64Data);
  44. const data = unGzipData.entityList
  45. ? unGzipData.entityList[0].Elements
  46. : unGzipData.EntityList[0].Elements;
  47. resolve(flag ? unGzipData : data);
  48. } catch (e) {
  49. console.log(e);
  50. resolve("error");
  51. }
  52. };
  53. });
  54. }