| Class | Description |
|---|---|
| BOMInputStream |
读取带BOM头的流内容,
getCharset()方法调用后会得到BOM头的编码,且会去除BOM头
00 00 FE FF = UTF-32, big-endian
FF FE 00 00 = UTF-32, little-endian
EF BB BF = UTF-8
FE FF = UTF-16, big-endian
FF FE = UTF-16, little-endian
使用：
String enc = "UTF-8"; // or NULL to use systemdefault
FileInputStream fis = new FileInputStream(file);
BOMInputStream uin = new BOMInputStream(fis, enc);
enc = uin.getCharset(); // check and skip possible BOM bytes
|
| BOMReader |
读取带BOM头的流内容的Reader，如果非bom的流或无法识别的编码，则默认UTF-8
BOM定义：http://www.unicode.org/unicode/faq/utf_bom.html
00 00 FE FF = UTF-32, big-endian
FF FE 00 00 = UTF-32, little-endian
EF BB BF = UTF-8
FE FF = UTF-16, big-endian
FF FE = UTF-16, little-endian
使用：
FileInputStream fis = new FileInputStream(file);
BOMReader uin = new BOMReader(fis);
|
| ByteArrayOutputStream |
基于快速缓冲FastByteBuffer的OutputStream,自动扩充缓冲区
可以通过
ByteArrayOutputStream.toByteArray()和 ByteArrayOutputStream.toString()来获取数据
避免重新分配内存块而是分配新增的缓冲区,缓冲区不会被GC,数据也不会被拷贝到其他缓冲区 |
| NullOutputStream |
此OutputStream写出数据到/dev/null,既忽略所有数据
来自 Apache Commons io
|
| QueueInputStream | |
| QueueReader |
队列InputStream
|
| RandomFileInputStream | |
| RandomFileOutputStream | |
| StreamBuffer | |
| StringInputStream | |
| StringOutputStream | |
| StringReader | |
| StringWriter | |
| VoidInputStream | |
| VoidOutputStream |
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