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package cf.java.study.java.io;
import java.io.File;
import java.io.FileInputStream;
import org.apache.commons.io.FileUtils;
import org.apache.commons.lang.StringUtils;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
public class FileTests {
@Before
public void set ......
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package JFFileEncrypt;
import java.security.Key;
import java.security.NoSuchAlgorithmException;
import java.security.SecureRandom;
import javax.crypto.KeyGenerator;
import javax.crypto.spec.SecretKeySpec;
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