JAVA基础复习一 字节输入、输出流整合(实现图片复制)
2021-04-26 19:28
标签:复制 input java try stream 实现 com imp finally 字符流不能处理非文字文件(带图片、视频等文件) JAVA基础复习一 字节输入、输出流整合(实现图片复制) 标签:复制 input java try stream 实现 com imp finally 原文地址:https://www.cnblogs.com/elnimo/p/13251450.htmlpackage com.winson.iotest;
import org.junit.Test;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
/**
* @description:输入字节流、输出字节流整合(实现图片的复制)
* @date: 2020/7/5 19:41
* @author: winson
*/
public class FileInputStreamFileOutputStreamTest {
@Test
public void test1() {
FileInputStream fileInputStream = null;
FileOutputStream fileOutputStream = null;
try {
File file = new File("ludashi.jpg");
File file1 = new File("ludashi_out.jpg");
fileInputStream = new FileInputStream(file);
fileOutputStream = new FileOutputStream(file1);
byte[] bytes = new byte[1024];
int len;
while ((len = fileInputStream.read(bytes)) != -1) {
fileOutputStream.write(bytes, 0, len);
}
} catch (IOException e) {
e.printStackTrace();
} finally {
try {
fileInputStream.close();
} catch (IOException e) {
e.printStackTrace();
} finally {
try {
fileOutputStream.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
}
}
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