xml解析库能力，但是xml转json的也存在问题，如何解决。

import xml from '@ohos.xml'; 
import util from '@ohos.util'; 
 
let strXml: string = 
  '<?xml version="1.0" encoding="utf-8"?>' + 
    '<!DOCTYPE note [\n<!ENTITY foo "baa">]>' + 
    '<note importance="high" logged="true">' + 
    ' <![CDATA[\r\nfuncrion matchwo(a,6)\r\n{\r\nreturn 1;\r\n}\r\n]]>' + 
    ' <!--Hello, World!-->' + 
    ' <company>John & Hans</company>' + 
    ' <title>Happy</title>' + 
    ' <title class=\'a\'>Happy11</title>' + 
    ' <lens>Work</lens>' + 
    ' <lens>Play</lens>' + 
    ' <?go there?>' + 
    ' <a><b/></a>' + 
    ' <h:table xmlns:h="http://www.w3.org/TR/html4/">' + 
    ' <h:tr>' + 
    ' <h:td>Apples</h:td>' + 
    ' <h:td>Bananas</h:td>' + 
    ' </h:tr>' + 
    ' </h:table>' + 
    '</note>'; 
let textEncoder: util.TextEncoder = new util.TextEncoder(); 
let arrBuffer: Uint8Array = textEncoder.encodeInto(strXml); 
let that: xml.XmlPullParser = new xml.XmlPullParser(arrBuffer.buffer, 'UTF-8'); 
let str: string = ''; 
 
function tagFunc(name: string, value: string): boolean { 
  str = name + value; 
  console.info('tag-' + str); 
  return true; 
} 
 
function attFunc(name: string, value: string): boolean { 
  str = name + ' ' + value; 
  console.info('attri-' + str); 
  return true; 
} 
 
function tokenFunc(name: xml.EventType, value: xml.ParseInfo): boolean { 
  str = name + ' ' + value.getDepth(); 
  console.info('token-' + str); 
  return true; 
} 
 
let options: xml.ParseOptions = { 
  supportDoctype: true, 
  ignoreNameSpace: true, 
  tagValueCallbackFunction: tagFunc, 
  attributeValueCallbackFunction: attFunc, 
  tokenValueCallbackFunction: tokenFunc 
}; 
that.parse(options); 
 
@Entry 
@Component 
struct Index11 { 
  @State message: string = 'Hello World'; 
 
  aboutToAppear() { 
    that.parse(options) 
  } 
 
  build() { 
    Row() { 
      Text() { 
        Span('来自QQQq') 
      } 
    } 
    .width(140) 
    .height(100) 
    .backgroundColor(Color.Yellow) 
  } 
}