Question

为什么这两个代码块会产生不同的字节数组？

Apache Commons IO 2.4：

Charset iso_8859_1 = Charset.availableCharsets().get("ISO-8859-1");
return IOUtils.toByteArray(new FileReader(getResourceFile(filename)), iso_8859_1);

JDK：

Charset iso_8859_1 = Charset.availableCharsets().get("ISO-8859-1");
ByteArrayOutputStream baos = new ByteArrayOutputStream();
BufferedWriter writer = new BufferedWriter(new OutputStreamWriter(baos, iso_8859_1));
BufferedReader reader = new BufferedReader(new InputStreamReader(new FileInputStream(getResourceFile(filename)), iso_8859_1));
String line;
while ((line = reader.readLine()) != null)
    writer.write(line);

writer.flush();
return baos.toByteArray();

告诉我，我看到了幽灵......

Answer 1

尝试使用FileInputStream，因为无法使用FileReader指定charset。

IOUtils.toByteArray(new InputStreamReader(new FileInputStream(getResourceFile(filename)), "ISO-8859-1"), "ISO-8859-1")

不能：org.apache.commons.io.IOUtils出错？

1 个答案: