我读出后为什么运行不了,而且好像读少了.为什么!package cute.stream.read;import java.io.*;public class CopyExe { /**
* @param args
*/
// 拷贝文件
public void iCopyFile(String srcname, String desname) {
FileInputStream isr = null;
FileOutputStream osr = null;
//BufferedInputStream br = null;
//BufferedOutputStream bw = null;
byte[] byteread = new byte[ 1024*20 ];
int i ;
//String s = "";
try {
isr = new FileInputStream(srcname); // 源文件
//br = new BufferedInputStream(isr);
osr = new FileOutputStream(desname); // 目标文件
//bw = new BufferedOutputStream(osr);
while ((i = isr.read(byteread))!= -1) {
i = isr.read(byteread, 0, byteread.length);
osr.write(byteread, 0, i);
} } catch (Exception e) {
e.getMessage();
} finally {
/*try {
br.close(); // 关闭 BufferedReader
} catch (Exception e) {
e.getMessage();
}*/
try {
isr.close(); // 关闭 FileReader
} catch (Exception e) {
e.getMessage();
}
/*try {
bw.close(); // 关闭 BufferedWriter
} catch (Exception e) {
e.getMessage();
}*/
try {
osr.close(); // 关闭 FileWriter
} catch (Exception e) {
e.getMessage();
}
}
} public static void main(String[] args) {
// TODO Auto-generated method stub
String srcname = "h:\\kugoo.exe";
String desname = "i:\\kugoo.exe";
CopyFile aa = new CopyFile();
aa.iCopyFile(srcname, desname);
}}
* @param args
*/
// 拷贝文件
public void iCopyFile(String srcname, String desname) {
FileInputStream isr = null;
FileOutputStream osr = null;
//BufferedInputStream br = null;
//BufferedOutputStream bw = null;
byte[] byteread = new byte[ 1024*20 ];
int i ;
//String s = "";
try {
isr = new FileInputStream(srcname); // 源文件
//br = new BufferedInputStream(isr);
osr = new FileOutputStream(desname); // 目标文件
//bw = new BufferedOutputStream(osr);
while ((i = isr.read(byteread))!= -1) {
i = isr.read(byteread, 0, byteread.length);
osr.write(byteread, 0, i);
} } catch (Exception e) {
e.getMessage();
} finally {
/*try {
br.close(); // 关闭 BufferedReader
} catch (Exception e) {
e.getMessage();
}*/
try {
isr.close(); // 关闭 FileReader
} catch (Exception e) {
e.getMessage();
}
/*try {
bw.close(); // 关闭 BufferedWriter
} catch (Exception e) {
e.getMessage();
}*/
try {
osr.close(); // 关闭 FileWriter
} catch (Exception e) {
e.getMessage();
}
}
} public static void main(String[] args) {
// TODO Auto-generated method stub
String srcname = "h:\\kugoo.exe";
String desname = "i:\\kugoo.exe";
CopyFile aa = new CopyFile();
aa.iCopyFile(srcname, desname);
}}
* @param args
*/
// 拷贝文件
public static void iCopyFile(String srcname, String desname) {
FileInputStream isr = null;
FileOutputStream osr = null;
//BufferedInputStream br = null;
//BufferedOutputStream bw = null;
byte[] byteread = new byte[ 1024*20 ];
int i ;
//String s = "";
try {
isr = new FileInputStream(srcname); // 源文件
//br = new BufferedInputStream(isr);
osr = new FileOutputStream(desname); // 目标文件
//bw = new BufferedOutputStream(osr);
while ((i = isr.read(byteread))!= -1) {
i = isr.read(byteread, 0, byteread.length);
osr.write(byteread, 0, i);
} } catch (Exception e) {
e.getMessage();
} finally {
/*try {
br.close(); // 关闭 BufferedReader
} catch (Exception e) {
e.getMessage();
}*/
try {
isr.close(); // 关闭 FileReader
} catch (Exception e) {
e.getMessage();
}
/*try {
bw.close(); // 关闭 BufferedWriter
} catch (Exception e) {
e.getMessage();
}*/
try {
osr.close(); // 关闭 FileWriter
} catch (Exception e) {
e.getMessage();
}
}
} public static void main(String[] args) {
// TODO Auto-generated method stub
String srcname = "h:\\kugoo.exe";
String desname = "i:\\kugoo.exe";
//CopyExe aa = new CopyExe();
iCopyFile(srcname, desname);
}}
i = isr.read(byteread, 0, byteread.length);
osr.write(byteread, 0, i);
} 我一直这么写