package comsyjutil;
import javaioBufferedReader;
import javaioBufferedWriter;
import javaioByteArrayInputStream;
import javaioByteArrayOutputStream;
import javaioFile;
import javaioFileInputStream;
import javaioFileOutputStream;
import javaioFileReader;
import javaioFileWriter;
import javaioIOException;
import javaioInputStream;
import javaioInputStreamReader;
import javaioObjectInputStream;
import javaioObjectOutputStream;
import javaioOutputStream;
import javaioPrintWriter;
import javaioStringReader;
import javautilArrays;
/**
* <p>
* Title:IO工具类
* </p>
*
* <p>
* Description:常用的IO操作封装
* </p>
*
* <p>
* Copyright: 转载请注明出处<A >
</A> * </p>
*
* @author 孙钰佳
* @main <A >mailto:>
</A> * @date Jun :: PM
*/
public class IOUtil {
/**
* 缓沖区大小 MB
*/
private static final int BUFFER_SIZE = * ;
/**
*
* Description: 将输入流输出到输出流
*
* @param in
* 输入流
* @param out
* 输出流
* @param bufferSize
* 缓沖区大小
* @throws IOException
* @mail <A >mailto:>
</A> * @sinceJun :: PM
*/
public static void inOutStream(InputStream in OutputStream out
int bufferSize) throws IOException {
byte[] buffer = new byte[bufferSize];// 缓沖区
for (int bytesRead = ; (bytesRead = inread(buffer)) != ;) {
outwrite(buffer bytesRead);
Arraysfill(buffer (byte) );
}
}
package comsyjutil;
import javaioBufferedReader;
import javaioBufferedWriter;
import javaioByteArrayInputStream;
import javaioByteArrayOutputStream;
import javaioFile;
import javaioFileInputStream;
import javaioFileOutputStream;
import javaioFileReader;
import javaioFileWriter;
import javaioIOException;
import javaioInputStream;
import javaioInputStreamReader;
import javaioObjectInputStream;
import javaioObjectOutputStream;
import javaioOutputStream;
import javaioPrintWriter;
import javaioStringReader;
import javautilArrays;
/**
* <p>
* Title:IO工具类
* </p>
*
* <p>
* Description:常用的IO操作封装
* </p>
*
* <p>
* Copyright: 转载请注明出处
* </p>
*
* @author 孙钰佳
* @main
* @date Jun :: PM
*/
public class IOUtil {
/**
* 缓沖区大小 MB
*/
private static final int BUFFER_SIZE = * ;
/**
*
* Description: 将输入流输出到输出流
*
* @param in
* 输入流
* @param out
* 输出流
* @param bufferSize
* 缓沖区大小
* @throws IOException
* @mail
* @sinceJun :: PM
*/
public static void inOutStream(InputStream in OutputStream out
int bufferSize) throws IOException {
byte[] buffer = new byte[bufferSize];// 缓沖区
for (int bytesRead = ; (bytesRead = inread(buffer)) != ;) {
outwrite(buffer bytesRead);
Arraysfill(buffer (byte) );
}
}
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/**
*
* Description: 读取文件返回字节数组流
*
* @param file
* 文件
* @return 字节数组流
* @mail <A >mailto:>
</A> * @sinceJun :: PM
*/
public static ByteArrayOutputStream readFileToByteStream(File file)
throws IOException {
FileInputStream fis = null;
ByteArrayOutputStream bos = null;
try {
fis = new FileInputStream(file);
bos = new ByteArrayOutputStream();
inOutStream(fis bos BUFFER_SIZE);
} finally {
if (fis != null)
fisclose();
}
return bos;
}
/**
*
* Description:读取文件返回字节数组
*
* @param file
* 文件
* @return 字节数组
* @throws IOException
* @mail <A >mailto:>
</A> * @sinceJun :: PM
*/
public static byte[] readFileToByteArray(File file) throws IOException {
ByteArrayOutputStream bos = null;
try {
bos = readFileToByteStream(file);
} finally {
if (bos != null)
bosclose();
}
return bostoByteArray();
}
/**
*
* Description:读取文件内容
*
* @param file
* 文件
* @return String内容
* @throws IOException
* @mail <A >mailto:>
</A> * @sinceJun :: PM
*/
public static String readFileToString(File file) throws IOException {
StringBuffer sb = null;
BufferedReader in = null;
try {
in = new BufferedReader(new FileReader(file));
sb = new StringBuffer();
for (String line; (line = inreadLine()) != null;) {
sbappend(line + \r\n);
}
} finally {
if (in != null)
inclose();
}
return sbtoString();
}
/**
*
* Description:复制文件
*
* @param src
* 源文件
* @param dest
* 目标文件
* @param cover
* 是否覆盖
* @throws IOException
* @mail <A >mailto:>
</A> * @sinceJun :: PM
*/
public static void copyFile(File src File dest boolean cover)
throws IOException {
/**
*
* Description: 读取文件返回字节数组流
*
* @param file
* 文件
* @return 字节数组流
* @mail
* @sinceJun :: PM
*/
public static ByteArrayOutputStream readFileToByteStream(File file)
throws IOException {
FileInputStream fis = null;
ByteArrayOutputStream bos = null;
try {
fis = new FileInputStream(file);
bos = new ByteArrayOutputStream();
inOutStream(fis bos BUFFER_SIZE);
} finally {
if (fis != null)
fisclose();
}
return bos;
}
/**
*
* Description:读取文件返回字节数组
*
* @param file
* 文件
* @return 字节数组
* @throws IOException
* @mail
* @sinceJun :: PM
*/
public static byte[] readFileToByteArray(File file) throws IOException {
ByteArrayOutputStream bos = null;
try {
bos = readFileToByteStream(file);
} finally {
if (bos != null)
bosclose();
}
return bostoByteArray();
}
/**
*
* Description:读取文件内容
*
* @param file
* 文件
* @return String内容
* @throws IOException
* @mail
* @sinceJun :: PM
*/
public static String readFileToString(File file) throws IOException {
StringBuffer sb = null;
BufferedReader in = null;
try {
in = new BufferedReader(new FileReader(file));
sb = new StringBuffer();
for (String line; (line = inreadLine()) != null;) {
sbappend(line + \r\n);
}
} finally {
if (in != null)
inclose();
}
return sbtoString();
}
/**
*
* Description:复制文件
*
* @param src
* 源文件
* @param dest
* 目标文件
* @param cover
* 是否覆盖
* @throws IOException
* @mail
* @sinceJun :: PM
*/
public static void copyFile(File src File dest boolean cover)
throws IOException {
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FileInputStream in = null;
FileOutputStream out = null;
try {
if (!destexists()) {
destcreateNewFile();
} else if (destexists() && cover) {
destdelete();
destcreateNewFile();
} else {
return;
}
in = new FileInputStream(src);
out = new FileOutputStream(dest);
inOutStream(in out BUFFER_SIZE);
} finally {
try {
if (in != null)
inclose();
} finally {
if (out != null)
outclose();
}
}
}
/**
*
* Description:写文件
*
* @param file
* 文件
* @param str
* 内容
* @throws IOException
* @mail <A >mailto:>
</A> * @sinceJun :: PM
*/
public static void writeFile(File file String str) throws IOException {
PrintWriter out = null;
BufferedReader in = null;
try {
if (!fileexists())
filecreateNewFile();
in = new BufferedReader(new StringReader(str));
out = new PrintWriter(new BufferedWriter(new FileWriter(file)));
for (String line; (line = inreadLine()) != null;) {
outprintln(line);
}
} finally {
try {
if (in != null)
inclose();
} finally {
if (out != null)
outclose();
}
}
}
/**
*
* Description:从控制台读取一串字符串
*
* @return 读取的字符串
* @throws IOException
* @mail <A >mailto:>
</A> * @sinceJun :: PM
*/
public static String readStringFromSystemIn() throws IOException {
BufferedReader br = new BufferedReader(new InputStreamReader(Systemin));
try {
return brreadLine();
} finally {
if (br != null)
brclose();
}
}
/**
*
* Description:当ObjectInputStream对象调用
* readObject();时会从ByteArrayInputStream流中反序列化出的对象
*
*
* @param bi
* @return
* @throws IOException
* @mail <A >mailto:>
</A> * @sinceJun :: PM
*/
public static ObjectInputStream buildObjectInputStream(
ByteArrayInputStream bi) throws IOException {
return new ObjectInputStream(bi);
}
/**
*
* Description:当ObjectOutputStream对象调用
* writeObject(o);时o对象会序列化到ByteArrayOutputStream流中去
*
* @param bos
* 字节数组流
* @return 对象输出流
* @throws IOException
* @mail <A >mailto:>
</A> * @sinceJun :: PM
*/
public static ObjectOutputStream buildObjectOutputStream(
ByteArrayOutputStream bos) throws IOException {
return new ObjectOutputStream(bos);
}
public static BufferedReader buildBufferedReader(String str) {
return new BufferedReader(new StringReader(str));
}
public static ByteArrayInputStream buildByteArrayInputStream(String str) {
return new ByteArrayInputStream(strgetBytes());
}
public static ByteArrayInputStream buildByteArrayInputStream(byte[] bt) {
return new ByteArrayInputStream(bt);
}
public static void main(String[] args) throws Exception {
byte[] bootFileBytes = IOUtilreadFileToByteArray(new File(
C:\\bootini));
Systemoutprintln(new String(bootFileBytes));
String bootFileStr = readFileToString(new File(C:\\bootini));
Systemoutprintln(bootFileStr);
Systemoutprintln(new String(bootFileBytes)equals(bootFileStr));
pyFile(new File(C:\\bootini) new File(C:\\bootini)
true);
IOUtilwriteFile(new File(C:\\bootini) bootFileStr);
ByteArrayOutputStream bos = new ByteArrayOutputStream();
ObjectOutputStream oos = IOUtilbuildObjectOutputStream(bos);
ooswriteObject(new String(abcd));
ObjectInputStream ois = IOUtilbuildObjectInputStream(IOUtil
buildByteArrayInputStream(bostoByteArray()));
Systemoutprintln(oisreadObject());
Systemoutprintln(IOUtilreadStringFromSystemIn());
}
}
