Question

我想在外部SD卡上的Android设备上创建一个简单的文本文件。使用我的代码，我总是收到错误：java.io.FileNotFoundException: /storage/emulated/0/SFX/TEST1.txt: open failed: ENOENT (No such file or directory)

我在清单文件中设置了<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>

        Button btn = (Button)findViewById(R.id.btn_Save);
        btn.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            //mach was
            StringBuilder sb = new StringBuilder();
            sb.append(txtName.getText().toString());
            sb.append(System.getProperty("line.separator"));
            sb.append(txtMonteur.getText().toString());
            sb.append(System.getProperty("line.separator"));
            sb.append(txtStraße.getText().toString());
            sb.append(System.getProperty("line.separator"));
            sb.append(Energiearten);

            File file;
            FileOutputStream out;
            try
            {
                file = new File(Environment.getExternalStorageDirectory(), "SFX/TEST1.txt");
                file.mkdirs();
                out = new FileOutputStream(file);
                out.write(sb.toString().getBytes());
                out.close();

            } catch (IOException e) {
                e.printStackTrace();

            } catch (Exception e) {
                Toast.makeText(ZBewegung.this, "Error:" + e.toString(), Toast.LENGTH_LONG).show();
            }
        }
    });

Answer 1

file = new File(Environment.getExternalStorageDirectory(), "SFX/TEST1.txt");
file.mkdirs();

这会创建一个名为SFX/TEST1.txt的目录，这不是您想要的。

尝试：

File dir=new File(Environment.getExternalStorageDirectory(), "SFX");
dir.mkdirs();
file = new File(dir, "SFX/TEST1.txt");

在Android的外部SD卡上通过FileOutputStream创建文本文件 - FileNotFoundException

1 个答案: