com.gitee.beiding.template_excel.FileUtils Maven / Gradle / Ivy
package com.gitee.beiding.template_excel;
import java.io.*;
class FileUtils {
static String read(InputStream inputStream) {
try {
StringBuilder builder = new StringBuilder();
String line;
BufferedReader reader = new BufferedReader(new InputStreamReader(inputStream));
while ((line = reader.readLine()) != null) {
builder.append(line).append("\n");
}
reader.close();
return builder.toString();
} catch (Exception e) {
return null;
}
}
static String read(File file) {
try {
return read(new FileInputStream(file));
} catch (Exception e) {
return null;
}
}
static void copy(InputStream inputStream, OutputStream outputStream) throws IOException {
byte[] buff = new byte[1024];
int len;
while ((len = inputStream.read(buff)) != -1) {
outputStream.write(buff, 0, len);
}
}
static void copy(File src, File target) throws IOException {
FileInputStream inputStream = new FileInputStream(src);
FileOutputStream outputStream = new FileOutputStream(target);
copy(inputStream, outputStream);
inputStream.close();
outputStream.close();
}
}