Question

下面的我的代码以前曾经工作过。但是，最近我格式化了手机之后，它就不再起作用了。请帮助我。

设置路径的代码是：

 path = Environment.getExternalStorageDirectory().getPath() + "/IMG-20190324-WA0000.jpg";
 try {
        m.addAttachment(path);

        if(m.send()) {
            Toast.makeText(context, "Email was sent successfully :)", Toast.LENGTH_LONG).show();
        } else {
            Toast.makeText(context, "Email was not sent :(", Toast.LENGTH_LONG).show();
        }
    } catch(Exception e) {
        //Toast.makeText(context, "There was a problem sending the email.", Toast.LENGTH_LONG).show();
        Log.e("MailApp", "Could not send email", e);
    }

我收到以下错误：

E/MailApp: Could not send email
javax.mail.MessagingException: IOException while sending message;
  nested exception is:
    java.io.FileNotFoundException: /storage/emulated/0/IMG-20190324-WA0000.jpg: open failed: EACCES (Permission denied)

我的清单权限：

<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />

文件位于与以前一样的确切位置，那么为什么代码无法读取它？

The file location screenshot :

Answer 1

我所要做的就是转到设备设置->应用程序->我的应用程序->开启存储权限。感谢@Pklumpp帮助我

为什么即使我的文件在正确的位置，我也遇到filenotfound异常？

1 个答案: