com.vip.vjtools.vjkit.io

Class IOUtil

java.lang.Object

com.vip.vjtools.vjkit.io.IOUtil

public class IOUtil
extends Object

IO Stream/Reader相关工具集. 固定encoding为UTF8. 建议使用Apache Commons IO和Guava关于IO的工具类(com.google.common.io.*), 在未引入Commons IO时可以用本类做最基本的事情. 1. 安静关闭Closeable对象 2. 读出InputStream/Reader全部内容到String 或 List 3. 读出InputStream/Reader一行内容到String 4. 将String写到OutputStream/Writer 5. 将String 转换为InputStream/Reader 5. InputStream/Reader与OutputStream/Writer之间复制的copy

Constructor Summary

Constructors

Constructor and Description
IOUtil()

Method Summary

Methods

Modifier and Type	Method and Description
static void	closeQuietly(Closeable closeable) 在final中安静的关闭, 不再往外抛出异常避免影响原有异常，最常用函数.
static long	copy(InputStream input, OutputStream output) 在InputStream与OutputStream间复制内容
static long	copy(Reader input, Writer output) 在Reader与Writer间复制内容
static String	readLine(InputStream input) 读取一行数据，比如System.in的用户输入
static String	readLine(Reader reader) 读取一行数据
static BufferedReader	toBufferedReader(Reader reader)
static InputStream	toInputStream(String input) 字符串转换成InputStream
static Reader	toInputStreamReader(String input) 字符串转换成Reader
static List<String>	toLines(InputStream input) 简单读取Reader的每行内容到List
static List<String>	toLines(Reader input) 简单读取Reader的每行内容到List
static String	toString(InputStream input) 简单读取InputStream到String.
static String	toString(Reader input) 简单读取Reader到String
static void	write(String data, OutputStream output) 简单写入String到OutputStream.
static void	write(String data, Writer output) 简单写入String到Writer.

Methods inherited from class java.lang.Object

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

Constructor Detail

IOUtil

public IOUtil()

Method Detail

closeQuietly

public static void closeQuietly(Closeable closeable)

在final中安静的关闭, 不再往外抛出异常避免影响原有异常，最常用函数. 同时兼容Closeable为空未实际创建的情况.

See Also:

Closeables#close}

toString

public static String toString(InputStream input)
                       throws IOException

简单读取InputStream到String.

Throws:

IOException

toString

public static String toString(Reader input)
                       throws IOException

简单读取Reader到String

Throws:

IOException

See Also:

CharStreams#toString}

toLines

public static List<String> toLines(InputStream input)
                            throws IOException

简单读取Reader的每行内容到List

Throws:

IOException

toLines

public static List<String> toLines(Reader input)
                            throws IOException

简单读取Reader的每行内容到List

Throws:

IOException

See Also:

CharStreams#readLines}

readLine

public static String readLine(InputStream input)
                       throws IOException

读取一行数据，比如System.in的用户输入

Throws:

IOException

readLine

public static String readLine(Reader reader)
                       throws IOException

读取一行数据

Throws:

IOException

write

public static void write(String data,
         OutputStream output)
                  throws IOException

简单写入String到OutputStream.

Throws:

IOException

write

public static void write(String data,
         Writer output)
                  throws IOException

简单写入String到Writer.

Throws:

IOException

toInputStream

public static InputStream toInputStream(String input)

字符串转换成InputStream

toInputStreamReader

public static Reader toInputStreamReader(String input)

字符串转换成Reader

copy

public static long copy(Reader input,
        Writer output)
                 throws IOException

在Reader与Writer间复制内容

Throws:

IOException

See Also:

CharStreams#copy}

copy

public static long copy(InputStream input,
        OutputStream output)
                 throws IOException

在InputStream与OutputStream间复制内容

Throws:

IOException

See Also:

ByteStreams#copy}

toBufferedReader

public static BufferedReader toBufferedReader(Reader reader)