java.io.UnsupportedEncodingException:java.nio.charset.CharsetICU [UTF-8]

问题描述

android studio 3.6

android studio 3.6

在build.gradle中:

in build.gradle:

compileOptions {
        targetCompatibility JavaVersion.VERSION_1_8
        sourceCompatibility JavaVersion.VERSION_1_8
    }

api 'org.apache.commons:commons-io:1.3.2'

在我的代码中

import org.apache.commons.io.FileUtils
import java.io.*
import java.nio.charset.StandardCharsets

     val file = File(folderPath + File.separator + resultFileName)
                FileUtils.writeStringToFile(
                    file,
                    fileContents,
                    StandardCharsets.UTF_8.toString()
                )

但是我得到了错误:

 java.nio.charset.CharsetICU[UTF-8]
 java.io.UnsupportedEncodingException: java.nio.charset.CharsetICU[UTF-8]
    at java.nio.charset.Charset.forNameUEE(Charset.java:322)
    at java.lang.String.getBytes(String.java:534)
    at org.apache.commons.io.IOUtils.write(IOUtils.java:810)
    at org.apache.commons.io.FileUtils.writeStringToFile(FileUtils.java:1110)
    at com.myproject.client.common.util.AndroidFileUtil.saveTextToFile(AndroidFileUtil.kt:106)
    at com.myproject.client.service.RecognizedCheckDataService$Companion.saveRecognizedText(RecognizedCheckDataService.kt:117)
    at com.myproject.client.viewmodel.ScanCheckRompetrolViewModel.finishProcessRecognizedCheck(ScanCheckRompetrolViewModel.kt:1059)
    at com.myproject.client.viewmodel.ScanCheckRompetrolViewModel.access$finishProcessRecognizedCheck(ScanCheckRompetrolViewModel.kt:28)
    at com.myproject.client.viewmodel.ScanCheckRompetrolViewModel$runDetector$1.onSuccess(ScanCheckRompetrolViewModel.kt:193)
    at com.myproject.client.viewmodel.ScanCheckRompetrolViewModel$runDetector$1.onSuccess(ScanCheckRompetrolViewModel.kt:28)
    at com.google.android.gms.tasks.zzn.run(Unknown Source)
    at android.os.Handler.handleCallback(Handler.java:739)
    at android.os.Handler.dispatchMessage(Handler.java:95)
    at android.os.Looper.loop(Looper.java:148)
    at android.app.ActivityThread.main(ActivityThread.java:5417)
    at java.lang.reflect.Method.invoke(Native Method)
    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
 Caused by: java.nio.charset.IllegalCharsetNameException: java.nio.charset.CharsetICU[UTF-8]

推荐答案

Charset#toString()指定不正确；在Android上，它会在此处中找到，返回"java.nio.charset.CharsetICU[UTF-8]".而且，该字符串当然不是现有字符集的名称.

Charset#toString() is not well specified; on Android, it returns "java.nio.charset.CharsetICU[UTF-8]" as found here. And that string is of course not the name of an existing charset.

但是完全不需要toString()调用. writeStringToFile方法具有过载，直接接受Charset.

But there is no need for the toString() call at all. The writeStringToFile method has an overload that accepts a Charset directly.

这篇关于java.io.UnsupportedEncodingException:java.nio.charset.CharsetICU [UTF-8]的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！