Package org.aoju.bus.core.io.stream

Class StreamReader

java.lang.Object

org.aoju.bus.core.io.stream.StreamReader

public class StreamReader
extends Object

InputStream读取器

Since:

Java 17+

Author:

Kimi Liu

Constructor Summary

Constructors

Constructor	Description
StreamReader(InputStream in, boolean closeAfterRead)	构造

Method Summary

Modifier and Type	Method	Description
static StreamReader	of(InputStream in, boolean closeAfterRead)	创建读取器
FastByteOutputStream	read()	从流中读取内容，读到输出流中，读取完毕后可选是否关闭流
FastByteOutputStream	read(int limit)	从流中读取内容，读到输出流中，读取完毕后可选是否关闭流
byte[]	readBytes()	从流中读取bytes
byte[]	readBytes(int length)	读取指定长度的byte数组
<T> T	readObject(Class<?>... acceptClasses)	从流中读取对象，即对象的反序列化

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

StreamReader

public StreamReader(InputStream in,
 boolean closeAfterRead)

构造

Parameters:

in - InputStream

closeAfterRead - 读取结束后是否关闭输入流

Method Details

of

public static StreamReader of(InputStream in,
 boolean closeAfterRead)

创建读取器

Parameters:

in - InputStream

closeAfterRead - 读取结束后是否关闭输入流

Returns:

StreamReader

readBytes

public byte[] readBytes()
                 throws InternalException

从流中读取bytes

Returns:

bytes

Throws:

InternalException - IO异常

readBytes

public byte[] readBytes(int length)
                 throws InternalException

读取指定长度的byte数组

Parameters:

length - 长度，小于0表示读取全部

Returns:

bytes

Throws:

InternalException - IO异常

read

public FastByteOutputStream read()
                          throws InternalException

从流中读取内容，读到输出流中，读取完毕后可选是否关闭流

Returns:

输出流

Throws:

InternalException - IO异常

read

public FastByteOutputStream read(int limit)
                          throws InternalException

从流中读取内容，读到输出流中，读取完毕后可选是否关闭流

Parameters:

limit - 限制最大拷贝长度，-1表示无限制

Returns:

输出流

Throws:

InternalException - IO异常

readObject

public <T> T readObject(Class<?>... acceptClasses)
                 throws InternalException

从流中读取对象，即对象的反序列化

注意！！！ 此方法不会检查反序列化安全，可能存在反序列化漏洞风险！！！

此方法使用了ObjectInputStream中的黑白名单方式过滤类，用于避免反序列化漏洞
通过构造ObjectInputStream，调用ObjectInputStream.accept(Class[]) 或者ObjectInputStream.refuse(Class[])方法添加可以被序列化的类或者禁止序列化的类。

Type Parameters:

T - 读取对象的类型

Parameters:

acceptClasses - 读取对象类型

Returns:

输出流

Throws:

InternalException - IO异常