跟着老师做到最后 出现如下错误07-27 11:51:01.464: WARN/System.err(283): java.io.IOException: Permission denied
07-27 11:51:01.475: WARN/System.err(283): at java.io.File.createNewFileImpl(Native Method)
07-27 11:51:01.484: WARN/System.err(283): at java.io.File.createNewFile(File.java:1160)
07-27 11:51:01.484: WARN/System.err(283): at blue.utils.FileUtils.createFileInSDCard(FileUtils.java:26)
07-27 11:51:01.484: WARN/System.err(283): at blue.utils.FileUtils.write2SDFromInput(FileUtils.java:58)
07-27 11:51:01.494: WARN/System.err(283): at blue.download.HttpDownloader.downFile(HttpDownloader.java:57)
07-27 11:51:01.494: WARN/System.err(283): at blue.mp3player.service.DownloadService$DownloadThread.run(DownloadService.java:40)
07-27 11:51:01.494: WARN/System.err(283): at java.lang.Thread.run(Thread.java:1096)
07-27 11:51:01.494: WARN/System.err(283): java.lang.NullPointerException
07-27 11:51:01.494: WARN/System.err(283): at blue.utils.FileUtils.write2SDFromInput(FileUtils.java:71)
07-27 11:51:01.494: WARN/System.err(283): at blue.download.HttpDownloader.downFile(HttpDownloader.java:57)
07-27 11:51:01.494: WARN/System.err(283): at blue.mp3player.service.DownloadService$DownloadThread.run(DownloadService.java:40)
07-27 11:51:01.504: WARN/System.err(283): at java.lang.Thread.run(Thread.java:1096)system.out 输出的是:
07-27 11:51:01.454: INFO/System.out(283): false
07-27 11:51:01.454: INFO/System.out(283): file----->/mnt/sdcard/mp3/a1.mp3大侠们帮帮忙 我搞不定...
07-27 11:51:01.475: WARN/System.err(283): at java.io.File.createNewFileImpl(Native Method)
07-27 11:51:01.484: WARN/System.err(283): at java.io.File.createNewFile(File.java:1160)
07-27 11:51:01.484: WARN/System.err(283): at blue.utils.FileUtils.createFileInSDCard(FileUtils.java:26)
07-27 11:51:01.484: WARN/System.err(283): at blue.utils.FileUtils.write2SDFromInput(FileUtils.java:58)
07-27 11:51:01.494: WARN/System.err(283): at blue.download.HttpDownloader.downFile(HttpDownloader.java:57)
07-27 11:51:01.494: WARN/System.err(283): at blue.mp3player.service.DownloadService$DownloadThread.run(DownloadService.java:40)
07-27 11:51:01.494: WARN/System.err(283): at java.lang.Thread.run(Thread.java:1096)
07-27 11:51:01.494: WARN/System.err(283): java.lang.NullPointerException
07-27 11:51:01.494: WARN/System.err(283): at blue.utils.FileUtils.write2SDFromInput(FileUtils.java:71)
07-27 11:51:01.494: WARN/System.err(283): at blue.download.HttpDownloader.downFile(HttpDownloader.java:57)
07-27 11:51:01.494: WARN/System.err(283): at blue.mp3player.service.DownloadService$DownloadThread.run(DownloadService.java:40)
07-27 11:51:01.504: WARN/System.err(283): at java.lang.Thread.run(Thread.java:1096)system.out 输出的是:
07-27 11:51:01.454: INFO/System.out(283): false
07-27 11:51:01.454: INFO/System.out(283): file----->/mnt/sdcard/mp3/a1.mp3大侠们帮帮忙 我搞不定...
解决方案 »
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是不是没加sdcard的读写权限
uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"></uses-permission>
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
你这是权限问题。你得加在app全局那里