代码如下:
import java.io.FileInputStreamimport java.io.IOException
import java.util.Arrays
import java.util.Base64
import java.util.Base64.Encoder
public class App {
public static void main(String[] args) throws IOException {
Encoder encoder = Base64.getEncoder()
byte[] buffer = new byte[1024]
int len = 0
StringBuilder builder = new StringBuilder()
try (FileInputStream inputStream = new FileInputStream("d:\\temp\\abc.txt")) {
while ((len = inputStream.read(buffer)) != -1) {
byte[] src = Arrays.copyOfRange(buffer, 0, len)
builder.append(encoder.encodeToString(src))
}
}
System.out.println(builder.toString())
}
}
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