本文实例讲述了Java实现文件和base64流的相互转换功能。分享给大家供大家参考,具体如下:
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import java.io.FileInputStream;
import java.io.FileOutputStream;
import sun.misc.BASE64Decoder;
import sun.misc.BASE64Encoder;
/**
* 文件与base64的互相转换操作
*/
public class testFile {
public static void main(String[] args) {
testFile t = new testFile();
try {
String ret = t.encodeBase64File( "d://IE和火狐js或css差异.docx" );
System.err.println(ret);
t.decoderBase64File(ret, "d://ghsTest/retFile.docx" , "d://ghsTest/" );
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
/**
* 将文件转成base64 字符串
*
* @param path文件路径
* @return *
* @throws Exception
*/
public static String encodeBase64File(String path) throws Exception {
File file = new File(path);
FileInputStream inputFile = new FileInputStream(file);
byte [] buffer = new byte [( int ) file.length()];
inputFile.read(buffer);
inputFile.close();
return new BASE64Encoder().encode(buffer);
}
/**
* 将base64字符解码保存文件
*
* @param base64Code
* @param targetPath
* @throws Exception
*/
public static void decoderBase64File(String base64Code, String targetPath,String catalogue)
throws Exception {
File file = new File(catalogue);
if (file.exists()== false ){
file.mkdirs();
}
byte [] buffer = new BASE64Decoder().decodeBuffer(base64Code);
FileOutputStream out = new FileOutputStream(targetPath);
out.write(buffer);
out.close();
}
}
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希望本文所述对大家java程序设计有所帮助。
原文链接:https://blog.csdn.net/thghs/article/details/43233199