初始项目

This commit is contained in:
liupopo
2023-02-11 12:55:02 +08:00
parent 1748bda84a
commit 0b89e36064
3363 changed files with 506201 additions and 1 deletions

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package com.cxytiandi.encrypt.util;
import org.apache.commons.codec.binary.Base64;
import javax.crypto.Cipher;
import javax.crypto.KeyGenerator;
import javax.crypto.spec.SecretKeySpec;
public class AesEncryptUtils {
private static final String KEY = "d7b85f6e214abcda";
private static final String ALGORITHMSTR = "AES/ECB/PKCS5Padding";
public static String base64Encode(byte[] bytes) {
return Base64.encodeBase64String(bytes);
}
public static byte[] base64Decode(String base64Code) throws Exception {
return Base64.decodeBase64(base64Code);
}
public static byte[] aesEncryptToBytes(String content, String encryptKey) throws Exception {
KeyGenerator kgen = KeyGenerator.getInstance("AES");
kgen.init(128);
Cipher cipher = Cipher.getInstance(ALGORITHMSTR);
cipher.init(Cipher.ENCRYPT_MODE, new SecretKeySpec(encryptKey.getBytes(), "AES"));
return cipher.doFinal(content.getBytes("utf-8"));
}
public static String aesEncrypt(String content, String encryptKey) throws Exception {
return base64Encode(aesEncryptToBytes(content, encryptKey));
}
public static String aesDecryptByBytes(byte[] encryptBytes, String decryptKey) throws Exception {
KeyGenerator kgen = KeyGenerator.getInstance("AES");
kgen.init(128);
Cipher cipher = Cipher.getInstance(ALGORITHMSTR);
cipher.init(Cipher.DECRYPT_MODE, new SecretKeySpec(decryptKey.getBytes(), "AES"));
byte[] decryptBytes = cipher.doFinal(encryptBytes);
return new String(decryptBytes, "utf-8");
}
public static String aesDecrypt(String encryptStr, String decryptKey) throws Exception {
return aesDecryptByBytes(base64Decode(encryptStr), decryptKey);
}
public static void main(String[] args) throws Exception {
String content = "你好";
System.out.println("加密前:" + content);
String encrypt = aesEncrypt(content, KEY);
System.out.println(encrypt.length() + ":加密后:" + encrypt);
String decrypt = aesDecrypt("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", KEY);
System.out.println("解密后:" + decrypt);
}
}

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package com.cxytiandi.encrypt.util;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.nio.charset.Charset;
public abstract class StreamUtils {
public static final int BUFFER_SIZE = 4096;
private static final byte[] EMPTY_CONTENT = new byte[0];
public static byte[] copyToByteArray(InputStream in) throws IOException {
if (in == null) {
return new byte[0];
}
ByteArrayOutputStream out = new ByteArrayOutputStream(BUFFER_SIZE);
copy(in, out);
return out.toByteArray();
}
public static String copyToString(InputStream in, Charset charset) throws IOException {
if (in == null) {
return "";
}
StringBuilder out = new StringBuilder();
InputStreamReader reader = new InputStreamReader(in, charset);
char[] buffer = new char[BUFFER_SIZE];
int bytesRead = -1;
while ((bytesRead = reader.read(buffer)) != -1) {
out.append(buffer, 0, bytesRead);
}
return out.toString();
}
public static void copy(byte[] in, OutputStream out) throws IOException {
out.write(in);
}
public static void copy(String in, Charset charset, OutputStream out) throws IOException {
Writer writer = new OutputStreamWriter(out, charset);
writer.write(in);
writer.flush();
}
public static int copy(InputStream in, OutputStream out) throws IOException {
int byteCount = 0;
byte[] buffer = new byte[BUFFER_SIZE];
int bytesRead = -1;
while ((bytesRead = in.read(buffer)) != -1) {
out.write(buffer, 0, bytesRead);
byteCount += bytesRead;
}
out.flush();
return byteCount;
}
public static long copyRange(InputStream in, OutputStream out, long start, long end) throws IOException {
long skipped = in.skip(start);
if (skipped < start) {
throw new IOException("Skipped only " + skipped + " bytes out of " + start + " required");
}
long bytesToCopy = end - start + 1;
byte[] buffer = new byte[StreamUtils.BUFFER_SIZE];
while (bytesToCopy > 0) {
int bytesRead = in.read(buffer);
if (bytesRead == -1) {
break;
} else if (bytesRead <= bytesToCopy) {
out.write(buffer, 0, bytesRead);
bytesToCopy -= bytesRead;
} else {
out.write(buffer, 0, (int) bytesToCopy);
bytesToCopy = 0;
}
}
return (end - start + 1 - bytesToCopy);
}
/**
* Drain the remaining content of the given InputStream.
* Leaves the InputStream open when done.
*
* @param in the InputStream to drain
* @return the number of bytes read
* @throws IOException in case of I/O errors
* @since 4.3
*/
public static int drain(InputStream in) throws IOException {
byte[] buffer = new byte[BUFFER_SIZE];
int bytesRead = -1;
int byteCount = 0;
while ((bytesRead = in.read(buffer)) != -1) {
byteCount += bytesRead;
}
return byteCount;
}
/**
* Return an efficient empty {@link InputStream}.
*
* @return a {@link ByteArrayInputStream} based on an empty byte array
* @since 4.2.2
*/
public static InputStream emptyInput() {
return new ByteArrayInputStream(EMPTY_CONTENT);
}
/**
* Return a variant of the given {@link InputStream} where calling
* {@link InputStream#close() close()} has no effect.
*
* @param in the InputStream to decorate
* @return a version of the InputStream that ignores calls to close
*/
public static InputStream nonClosing(InputStream in) {
return new NonClosingInputStream(in);
}
/**
* Return a variant of the given {@link OutputStream} where calling
* {@link OutputStream#close() close()} has no effect.
*
* @param out the OutputStream to decorate
* @return a version of the OutputStream that ignores calls to close
*/
public static OutputStream nonClosing(OutputStream out) {
return new NonClosingOutputStream(out);
}
private static class NonClosingInputStream extends FilterInputStream {
public NonClosingInputStream(InputStream in) {
super(in);
}
@Override
public void close() throws IOException {
}
}
private static class NonClosingOutputStream extends FilterOutputStream {
public NonClosingOutputStream(OutputStream out) {
super(out);
}
@Override
public void write(byte[] b, int off, int let) throws IOException {
// It is critical that we override this method for performance
out.write(b, off, let);
}
@Override
public void close() throws IOException {
}
}
}