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| // 方式1：使用crypto-js
import CryptoJSMD5 from 'crypto-js/md5'
import CryptoJSEncLatin1 from 'crypto-js/enc-latin1'
import CryptoJSEncHex from 'crypto-js/enc-hex'
getFileMD5(file) {
const start = new Date().getTime()
return new Promise((resolve) => {
const fileReader = new FileReader()
fileReader.onloadend = (ev) => {
const md5 = CryptoJSMD5(
CryptoJSEncLatin1.parse(ev.target.result)
).toString(CryptoJSEncHex)
console.log(
`计算MD5, file=${file.name}, size=${file.size}, md5=${md5}, elapsed=${
new Date().getTime() - start
}ms`
)
resolve(md5)
}
fileReader.readAsBinaryString(file)
})
},
// 方式2：使用spark-md5
import SparkMD5 from 'spark-md5'
getFileMD5(file) {
const start = new Date().getTime()
return new Promise((resolve) => {
const fileReader = new FileReader()
fileReader.onloadend = (ev) => {
const md5 = SparkMD5.hashBinary(ev.target.result)
console.log(
`计算MD5, file=${file.name}, size=${file.size}, md5=${md5}, elapsed=${
new Date().getTime() - start
}ms`
)
resolve(md5)
}
fileReader.readAsBinaryString(file)
})
},
|