前端使用pako对json串进行压缩，转成base64并且解压缩的过程

export function compressAndb64encode(originalData) {
  // 将字符串转换为字节序列
  const binaryString = encodeURIComponent(originalData)
  const charList = binaryString.split('')
  const binaryArray = charList.map(char => char.charCodeAt(0))
  // 压缩数据
  const compressed = pako.deflate(new Uint8Array(binaryArray))

  //解决图片过多即数据量过大时，会出现内存溢出的问题
  const CHUNK_SIZE = 0x8000
  let index = 0
  const length = compressed.length
  let result = ''
  let slice = ''
  while (index < length) {
    slice = compressed.subarray(index, Math.min(index + CHUNK_SIZE, length))
    result += String.fromCharCode.apply(null, slice)
    index += CHUNK_SIZE
  }
  let compressedData = btoa(result)

  //let compressedData = btoa(String.fromCharCode.apply(null, compressed)) //
  return compressedData

  /* const myUint8Array = pako.deflate(originalData, { to: 'string' })
  const binary = myUint8Array.join(',')
  const compressedData = btoa(binary)
  return compressedData */
}
export function deCompressAndb64decode(compressedData) {
  // 解压数据
  const compressedBinary = atob(compressedData)
  const compressedArray = compressedBinary
    .split('')
    .map(char => char.charCodeAt(0))

  const decompressed = pako.inflate(new Uint8Array(compressedArray))
  const decompressedString = Array.from(decompressed)
    .map(charCode => String.fromCharCode(charCode))
    .join('')

  let originalData = decodeURIComponent(decompressedString)
  return originalData

  /* const binary = atob(compressedData)
  const myUint8Array = new Uint8Array(binary.split(','))
  const decompressed = pako.inflate(myUint8Array, { to: 'string' })
  return decompressed */
}

尤其要注意中间解决内存溢出的问题，搜索了有一阵时间才解决，以此记录下来，方便下次直接使用！！！