关于文件的AES加密的难题

h98458 2011-02-22 05:52:53
下边是一个字符串的AES加密,谁能把他扩展成为可以为文件或文件流的加密?

package Fastmule.Android;

import java.security.SecureRandom;

import javax.crypto.Cipher;
import javax.crypto.KeyGenerator;
import javax.crypto.SecretKey;
import javax.crypto.spec.SecretKeySpec;
/*
加密 –
1.String encryptingCode = SimpleCrypto.encrypt(masterPassword,originalText);


解密 –
1.String originalText = SimpleCrypto.decrypt(masterpassword, encryptingCode);

*/

public class AES_String {

public static String encrypt(String seed, String cleartext) throws Exception {
byte[] rawKey = getRawKey(seed.getBytes());
byte[] result = encrypt(rawKey, cleartext.getBytes());
return toHex(result);
}

public static String decrypt(String seed, String encrypted) throws Exception {
byte[] rawKey = getRawKey(seed.getBytes());
byte[] enc = toByte(encrypted);
byte[] result = decrypt(rawKey, enc);
return new String(result);
}

private static byte[] getRawKey(byte[] seed) throws Exception {
KeyGenerator kgen = KeyGenerator.getInstance("AES");
SecureRandom sr = SecureRandom.getInstance("SHA1PRNG");
sr.setSeed(seed);
kgen.init(128, sr); // 192 and 256 bits may not be available
SecretKey skey = kgen.generateKey();
byte[] raw = skey.getEncoded();
return raw;
}


private static byte[] encrypt(byte[] raw, byte[] clear) throws Exception {
SecretKeySpec skeySpec = new SecretKeySpec(raw, "AES");
Cipher cipher = Cipher.getInstance("AES");
cipher.init(Cipher.ENCRYPT_MODE, skeySpec);
byte[] encrypted = cipher.doFinal(clear);
return encrypted;
}

private static byte[] decrypt(byte[] raw, byte[] encrypted) throws Exception {
SecretKeySpec skeySpec = new SecretKeySpec(raw, "AES");
Cipher cipher = Cipher.getInstance("AES");
cipher.init(Cipher.DECRYPT_MODE, skeySpec);
byte[] decrypted = cipher.doFinal(encrypted);
return decrypted;
}

public static String toHex(String txt) {
return toHex(txt.getBytes());
}
public static String fromHex(String hex) {
return new String(toByte(hex));
}

public static byte[] toByte(String hexString) {
int len = hexString.length()/2;
byte[] result = new byte[len];
for (int i = 0; i < len; i++)
result[i] = Integer.valueOf(hexString.substring(2*i, 2*i+2), 16).byteValue();
return result;
}

public static String toHex(byte[] buf) {
if (buf == null)
return "";
StringBuffer result = new StringBuffer(2*buf.length);
for (int i = 0; i < buf.length; i++) {
appendHex(result, buf[i]);
}
return result.toString();
}
private final static String HEX = "0123456789ABCDEF";
private static void appendHex(StringBuffer sb, byte b) {
sb.append(HEX.charAt((b>>4)&0x0f)).append(HEX.charAt(b&0x0f));
}

}
...全文
1001 12 打赏 收藏 转发到动态 举报
写回复
用AI写文章
12 条回复
切换为时间正序
请发表友善的回复…
发表回复
童话的守望者 2013-05-18
  • 打赏
  • 举报
回复
不错呢~~~
0轰隆隆0 2011-02-25
  • 打赏
  • 举报
回复
我对PHP不是很了解,问题可能出在加解密函数方法参数(实现方式)不一致导致的问题
h98458 2011-02-25
  • 打赏
  • 举报
回复
是呀,这软件要开发delphi、Android,iphone,苹果,ipad等版本,加密的问题头大了
0轰隆隆0 2011-02-25
  • 打赏
  • 举报
回复
跨平台操作确实很让人头痛!
h98458 2011-02-25
  • 打赏
  • 举报
回复
稍微改下:

// 加密文件
public static void EncryptFile(String pwd, File fileIn,File fileOut) throws Exception
{
try
{
//读文件
FileInputStream fis = new FileInputStream(fileIn);
byte[] bytIn=readbyte(fis);
//AES加密
KeyGenerator kgen = KeyGenerator.getInstance("AES");
kgen.init(128, new SecureRandom(pwd.getBytes()));
SecretKey skey = kgen.generateKey();
byte[] raw = skey.getEncoded();
SecretKeySpec skeySpec = new SecretKeySpec(raw, "AES");
Cipher cipher = Cipher.getInstance("AES/ECB/NoPadding");
cipher.init(Cipher.ENCRYPT_MODE, skeySpec);
//写文件
byte[] bytOut = cipher.doFinal(bytIn);
FileOutputStream fos = new FileOutputStream(fileOut);
InputStream sbs = new ByteArrayInputStream(bytOut);
fos.write(readbyte(sbs));
fos.close();
fis.close();
}
catch (Exception e)
{
throw new Exception(e.getMessage());
}
}

//解密文件
public static void DecryptFile(String pwd, File fileIn,File fileOut) throws Exception
{
try
{
//读文件
FileInputStream fis = new FileInputStream(fileIn);
byte[] bytIn=readbyte(fis);
//AES解密
KeyGenerator kgen = KeyGenerator.getInstance("AES");
kgen.init(256, new SecureRandom(pwd.getBytes()));
SecretKey skey = kgen.generateKey();
byte[] raw = skey.getEncoded();
SecretKeySpec skeySpec = new SecretKeySpec(raw, "AES");
Cipher cipher = Cipher.getInstance("AES/ECB/NoPadding");
cipher.init(Cipher.DECRYPT_MODE, skeySpec);
//写文件
//byte[] bytIn_tmp = interceptByte(bytIn,8,8);
byte[] bytOut = cipher.doFinal(bytIn);
FileOutputStream fos = new FileOutputStream(fileOut);
InputStream sbs = new ByteArrayInputStream(bytOut);
fos.write(readbyte(sbs));
fos.close();
fis.close();
}
catch (Exception e)
{
throw new Exception(e.getMessage());
}
}

可是在PHP加密过的文件,用JAVA解出来却是乱码
PHP的AES加密函数:

function fnEncrypt($sValue, $sSecretKey)
{
return trim(mcrypt_encrypt(MCRYPT_RIJNDAEL_128, $sSecretKey, $sValue, MCRYPT_MODE_ECB, mcrypt_create_iv(mcrypt_get_iv_size(MCRYPT_RIJNDAEL_128, MCRYPT_MODE_ECB), MCRYPT_RAND)));
}
  • 打赏
  • 举报
回复
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.security.Key;
import java.security.NoSuchAlgorithmException;
import java.security.SecureRandom;
import java.security.Security;
import javax.crypto.Cipher;
import javax.crypto.KeyGenerator;
public class DESEncryptUtil {
public static Key createKey() throws NoSuchAlgorithmException {//创建密钥
Security.insertProviderAt(new com.sun.crypto.provider.SunJCE(), 1);
KeyGenerator generator = KeyGenerator.getInstance("DES");
generator.init(new SecureRandom());
Key key = generator.generateKey();
return key;
}
public static Key getKey(InputStream is) {
try {
ObjectInputStream ois = new ObjectInputStream(is);
return (Key) ois.readObject();
} catch (Exception e) {
e.printStackTrace();
throw new RuntimeException(e);
}
}
private static byte[] doEncrypt(Key key, byte[] data) {//对数据进行加密?
try {
Cipher cipher = Cipher.getInstance("DES/ECB/PKCS5Padding");
cipher.init(Cipher.ENCRYPT_MODE, key);
byte[] raw = cipher.doFinal(data);
return raw;
} catch (Exception e) {
e.printStackTrace();
throw new RuntimeException(e);
}
}
public static InputStream doDecrypt(Key key, InputStream in) {//对数据进行解密?
try {
Cipher cipher = Cipher.getInstance("DES/ECB/PKCS5Padding");
cipher.init(Cipher.DECRYPT_MODE, key);
ByteArrayOutputStream bout = new ByteArrayOutputStream();
byte[] tmpbuf = new byte[1024];
int count = 0;
while ((count = in.read(tmpbuf)) != -1) {
bout.write(tmpbuf, 0, count);
tmpbuf = new byte[1024];
}
in.close();
byte[] orgData = bout.toByteArray();
byte[] raw = cipher.doFinal(orgData);
ByteArrayInputStream bin = new ByteArrayInputStream(raw);
return bin;
} catch (Exception e){
e.printStackTrace();
throw new RuntimeException(e);
}
}
public static void main(String[] args) throws Exception{
System.out.println("===================");
if (args.length == 2 && args[0].equals("key")){
Key key = DESEncryptUtil.createKey();
ObjectOutputStream oos = new ObjectOutputStream(
new FileOutputStream(args[1]));
oos.writeObject(key);
oos.close();
System.out.println("成功生成密钥文件");
} else if (args.length == 3 && args[0].equals("encrypt")){
File file = new File(args[1]);
FileInputStream in = new FileInputStream(file);
ByteArrayOutputStream bout = new ByteArrayOutputStream();
byte[] tmpbuf = new byte[1024];
int count = 0;
while ((count = in.read(tmpbuf)) != -1){
bout.write(tmpbuf, 0, count);
tmpbuf = new byte[1024];
}
in.close();
byte[] orgData = bout.toByteArray();
Key key = getKey(new FileInputStream(args[2]));
byte[] raw = DESEncryptUtil.doEncrypt(key, orgData);
file = new File(file.getParent() + "\\en_" + file.getName());
FileOutputStream out = new FileOutputStream(file);
out.write(raw);
out.close();
System.out.println("成功加密,加密文件位:"+file.getAbsolutePath());
} else if (args.length == 3 && args[0].equals("decrypt")){//对文件进行解密
File file = new File(args[1]);
FileInputStream fis = new FileInputStream(file);
Key key = getKey(new FileInputStream(args[2]));
InputStream raw = DESEncryptUtil.doDecrypt(key, fis);
ByteArrayOutputStream bout = new ByteArrayOutputStream();
byte[] tmpbuf = new byte[1024];
int count = 0;
while ((count = raw.read(tmpbuf)) != -1){
bout.write(tmpbuf, 0, count);
tmpbuf = new byte[1024];
}
raw.close();
byte[] orgData = bout.toByteArray();
file = new File(file.getParent() + "\\rs_" + file.getName());
FileOutputStream fos = new FileOutputStream(file);
fos.write(orgData);
System.out.println("成功解密,解密文件位:"+file.getAbsolutePath());
}else if(args.length==1 && args[0].equals("-h")) {
System.out.println("\t文件加密解密\n");
System.out.println("创建密钥文件:java -jar key.jar key E:/key.dat");
System.err.println("其中key.jar为需要运行的Jar文件,key参数表示要创建加密文件 E:/key.dat表示加密文件的存放位置");
System.out.println("\n");
System.out.println("加密文件:java -jar key.jar encrypt E:/test.properties E:/key.dat ");
System.err.println("其中key.jar为需要运行的Jar文件 encrypt 参数表示加密 E:/test.properties表示需要加密的文件 E:/key.dat表示加密密钥文件");
System.out.println("\n");
System.out.println("解密文件:java -jar key.jar decrypt E:/en_test.properties E:/key.dat ");
System.err.println("其中key.jar为需要运行的Jar文件 decrypt参数表示解密 E:/en_test.properties表示需要解密的文件 E:/key.dat表示解密的密钥文件");
}else {
System.out.println("你需要运行参数-h");
}
}
}
  • 打赏
  • 举报
回复
朋友给你一个java文件加密的例子,安装这样改吧,举一反三。


import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.security.Key;
import java.security.NoSuchAlgorithmException;
import java.security.SecureRandom;
import java.security.Security;
import javax.crypto.Cipher;
import javax.crypto.KeyGenerator;
public class DESEncryptUtil {
public static Key createKey() throws NoSuchAlgorithmException {//创建密钥
Security.insertProviderAt(new com.sun.crypto.provider.SunJCE(), 1);
KeyGenerator generator = KeyGenerator.getInstance("DES");
generator.init(new SecureRandom());
Key key = generator.generateKey();
return key;
}
public static Key getKey(InputStream is) {
try {
ObjectInputStream ois = new ObjectInputStream(is);
return (Key) ois.readObject();
} catch (Exception e) {
e.printStackTrace();
throw new RuntimeException(e);
}
}
private static byte[] doEncrypt(Key key, byte[] data) {//对数据进行加密?
try {
Cipher cipher = Cipher.getInstance("DES/ECB/PKCS5Padding");
cipher.init(Cipher.ENCRYPT_MODE, key);
byte[] raw = cipher.doFinal(data);
return raw;
} catch (Exception e) {
e.printStackTrace();
throw new RuntimeException(e);
}
}
public static InputStream doDecrypt(Key key, InputStream in) {//对数据进行解密?
try {
Cipher cipher = Cipher.getInstance("DES/ECB/PKCS5Padding");
cipher.init(Cipher.DECRYPT_MODE, key);
ByteArrayOutputStream bout = new ByteArrayOutputStream();
byte[] tmpbuf = new byte[1024];
int count = 0;
while ((count = in.read(tmpbuf)) != -1) {
bout.write(tmpbuf, 0, count);
tmpbuf = new byte[1024];
}
in.close();
byte[] orgData = bout.toByteArray();
byte[] raw = cipher.doFinal(orgData);
ByteArrayInputStream bin = new ByteArrayInputStream(raw);
return bin;
} catch (Exception e){
e.printStackTrace();
throw new RuntimeException(e);
}
}
public static void main(String[] args) throws Exception{
System.out.println("===================");
if (args.length == 2 && args[0].equals("key")){
Key key = DESEncryptUtil.createKey();
ObjectOutputStream oos = new ObjectOutputStream(
new FileOutputStream(args[1]));
oos.writeObject(key);
oos.close();
System.out.println("成功生成密钥文件");
} else if (args.length == 3 && args[0].equals("encrypt")){
File file = new File(args[1]);
FileInputStream in = new FileInputStream(file);
ByteArrayOutputStream bout = new ByteArrayOutputStream();
byte[] tmpbuf = new byte[1024];
int count = 0;
while ((count = in.read(tmpbuf)) != -1){
bout.write(tmpbuf, 0, count);
tmpbuf = new byte[1024];
}
in.close();
byte[] orgData = bout.toByteArray();
Key key = getKey(new FileInputStream(args[2]));
byte[] raw = DESEncryptUtil.doEncrypt(key, orgData);
file = new File(file.getParent() + "\\en_" + file.getName());
FileOutputStream out = new FileOutputStream(file);
out.write(raw);
out.close();
System.out.println("成功加密,加密文件位:"+file.getAbsolutePath());
} else if (args.length == 3 && args[0].equals("decrypt")){//对文件进行解密
File file = new File(args[1]);
FileInputStream fis = new FileInputStream(file);
Key key = getKey(new FileInputStream(args[2]));
InputStream raw = DESEncryptUtil.doDecrypt(key, fis);
ByteArrayOutputStream bout = new ByteArrayOutputStream();
byte[] tmpbuf = new byte[1024];
int count = 0;
while ((count = raw.read(tmpbuf)) != -1){
bout.write(tmpbuf, 0, count);
tmpbuf = new byte[1024];
}
raw.close();
byte[] orgData = bout.toByteArray();
file = new File(file.getParent() + "\\rs_" + file.getName());
FileOutputStream fos = new FileOutputStream(file);
fos.write(orgData);
System.out.println("成功解密,解密文件位:"+file.getAbsolutePath());
}else if(args.length==1 && args[0].equals("-h")) {
System.out.println("\t文件加密解密\n");
System.out.println




希望对你有帮助
0轰隆隆0 2011-02-23
  • 打赏
  • 举报
回复
我大概看了一下,思路是对的!现在下班了,明天要是还没有解决,我再帮你看
h98458 2011-02-23
  • 打赏
  • 举报
回复
解决delphi的AES加密文件出现:java.lang .Exception:last block incomplete in decryption错误
而自己加密解密却没问题
h98458 2011-02-23
  • 打赏
  • 举报
回复
自己改进后的单元:

package Fastmule.Android;

import java.security.SecureRandom;

//文件流
import java.io.ByteArrayOutputStream;
import java.io.ByteArrayInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.InputStream;

import javax.crypto.Cipher;
import javax.crypto.KeyGenerator;
import javax.crypto.SecretKey;
import javax.crypto.spec.SecretKeySpec;
/*
加密 –
1.String encryptingCode = SimpleCrypto.encrypt(masterPassword,originalText);


解密 –
1.String originalText = SimpleCrypto.decrypt(masterpassword, encryptingCode);

*/

public class AES {

public static String encrypt(String seed, String cleartext) throws Exception {
byte[] rawKey = getRawKey(seed.getBytes());
byte[] result = encrypt(rawKey, cleartext.getBytes());
return toHex(result);
}

public static String decrypt(String seed, String encrypted) throws Exception {
byte[] rawKey = getRawKey(seed.getBytes());
byte[] enc = toByte(encrypted);
byte[] result = decrypt(rawKey, enc);
return new String(result);
}

private static byte[] getRawKey(byte[] seed) throws Exception {
KeyGenerator kgen = KeyGenerator.getInstance("AES");
SecureRandom sr = SecureRandom.getInstance("SHA1PRNG");
sr.setSeed(seed);
kgen.init(128, sr); // 192 and 256 bits may not be available
SecretKey skey = kgen.generateKey();
byte[] raw = skey.getEncoded();
return raw;
}


private static byte[] encrypt(byte[] raw, byte[] clear) throws Exception {
SecretKeySpec skeySpec = new SecretKeySpec(raw, "AES");
Cipher cipher = Cipher.getInstance("AES");
cipher.init(Cipher.ENCRYPT_MODE, skeySpec);
byte[] encrypted = cipher.doFinal(clear);
return encrypted;
}

private static byte[] decrypt(byte[] raw, byte[] encrypted) throws Exception {
SecretKeySpec skeySpec = new SecretKeySpec(raw, "AES");
Cipher cipher = Cipher.getInstance("AES");
cipher.init(Cipher.DECRYPT_MODE, skeySpec);
byte[] decrypted = cipher.doFinal(encrypted);
return decrypted;
}

public static String toHex(String txt) {
return toHex(txt.getBytes());
}
public static String fromHex(String hex) {
return new String(toByte(hex));
}

public static byte[] toByte(String hexString) {
int len = hexString.length()/2;
byte[] result = new byte[len];
for (int i = 0; i < len; i++)
result[i] = Integer.valueOf(hexString.substring(2*i, 2*i+2), 16).byteValue();
return result;
}

public static String toHex(byte[] buf) {
if (buf == null)
return "";
StringBuffer result = new StringBuffer(2*buf.length);
for (int i = 0; i < buf.length; i++) {
appendHex(result, buf[i]);
}
return result.toString();
}
// 加密文件
public static void EncryptFile(String pwd, File fileIn,File fileOut) throws Exception
{
try
{
//读取文件
FileInputStream fis = new FileInputStream(fileIn);
byte[] bytIn=readbyte(fis);
//AES加密
KeyGenerator kgen = KeyGenerator.getInstance("AES");
kgen.init(128, new SecureRandom(pwd.getBytes()));
SecretKey skey = kgen.generateKey();
byte[] raw = skey.getEncoded();
SecretKeySpec skeySpec = new SecretKeySpec(raw, "AES");
Cipher cipher = Cipher.getInstance("AES");
cipher.init(Cipher.ENCRYPT_MODE, skeySpec);
//写文件
byte[] bytOut = cipher.doFinal(bytIn);
FileOutputStream fos = new FileOutputStream(fileOut);
InputStream sbs = new ByteArrayInputStream(bytOut);
fos.write(readbyte(sbs));
fos.close();
fis.close();
}
catch (Exception e)
{
throw new Exception(e.getMessage());
}
}

// 解密文件
public static void DecryptFile(String pwd, File fileIn,File fileOut) throws Exception
{
try
{
//读取文件

FileInputStream fis = new FileInputStream(fileIn);
byte[] bytIn=readbyte(fis);

//AES解密
KeyGenerator kgen = KeyGenerator.getInstance("AES");
kgen.init(128, new SecureRandom(pwd.getBytes()));
SecretKey skey = kgen.generateKey();
byte[] raw = skey.getEncoded();
SecretKeySpec skeySpec = new SecretKeySpec(raw, "AES");
Cipher cipher = Cipher.getInstance("AES");
cipher.init(Cipher.DECRYPT_MODE, skeySpec);
//写文件
byte[] bytOut = cipher.doFinal(bytIn);
FileOutputStream fos = new FileOutputStream(fileOut);
InputStream sbs = new ByteArrayInputStream(bytOut);
fos.write(readbyte(sbs));
fos.close();
fis.close();
}
catch (Exception e)
{
throw new Exception(e.getMessage());
}
}
//读取InputStream转换为byte函数 ----2011-02-23 by hrg
protected static byte[] readbyte(InputStream stream)
{
try
{
ByteArrayOutputStream baos = new ByteArrayOutputStream( 8196 );
byte[] buffer = new byte[1024];
int length = 0;
while ( ( length = stream.read( buffer ) ) > 0 )
{
baos.write( buffer, 0, length );
}
return baos.toByteArray();

}
catch ( Exception exception )
{
return exception.getMessage().getBytes();
}
}
private final static String HEX = "0123456789ABCDEF";
private static void appendHex(StringBuffer sb, byte b) {
sb.append(HEX.charAt((b>>4)&0x0f)).append(HEX.charAt(b&0x0f));
}

}


现在可以对文件加密解密了
但是却解不了delphi用AES加密过的文件,同样的文件用php的AES却可以解密,郁闷了
0轰隆隆0 2011-02-23
  • 打赏
  • 举报
回复
楼主提供的加密方式本来就是用byte数组来处理的,只不过最后封装成了对String的处理!

你可以直接对该方法进行改造(加密)

private static byte[] encrypt(byte[] raw, byte[] clear) throws Exception {
SecretKeySpec skeySpec = new SecretKeySpec(raw, "AES");
Cipher cipher = Cipher.getInstance("AES");
cipher.init(Cipher.ENCRYPT_MODE, skeySpec);
byte[] encrypted = cipher.doFinal(clear);
return encrypted;
}

比如你打算给某一文件加密,你可以将文件转换成字节流,传进去就可以了;该方法加密后返回的也是字节流,你就可以将该流保存成文件~

对于解密的话,再将以下该方法进行改造就可以了
    private static byte[] decrypt(byte[] raw, byte[] encrypted) throws Exception {    
SecretKeySpec skeySpec = new SecretKeySpec(raw, "AES");
Cipher cipher = Cipher.getInstance("AES");
cipher.init(Cipher.DECRYPT_MODE, skeySpec);
byte[] decrypted = cipher.doFinal(encrypted);
return decrypted;
}

将原先加密后保存的文件再转换成流,再将传出的流保存成原先的类型文件,所得到的文件就是原加密前的文件了
我将带领大家全面分析HLS(M3U8),包括直播、点播、多码流、AES加密、切片、等。您将亲自动手来操练,搭建环境、学习理论,分析总结:m3u8+Nginx+OpenSSL+FFmpeg具体包括包括如下:HLS直播协议详解FFmpeg+Nginx+VLC打造M3U8点播FFmpeg+Nginx+VLC打造M3U8直播FFmpeg:M3U8的多码流自适应Win10快速安装OpenSSL(不用编译源码)FFmpeg:M3U8的AES加密 -------------------------------------------------------------------音视频是一门很复杂的技术,涉及的概念、原理、理论非常多,很多初学者不学基础理论,而是直接做项目,往往会看到c/c++的代码时一头雾水,不知道代码到底是什么意思,这是为什么呢? 因为没有学习音视频的基础理论,就比如学习英语,不学习基本单词,而是天天听英语新闻,总也听不懂。所以呢,一定要认真学习基础理论,然后再学习播放器、转码器、非编、流媒体直播、视频监控、等等。 梅老师从事音视频与流媒体行业18年;曾在永新视博、中科大洋、百度、美国Harris广播事业部等公司就职,经验丰富;曾亲手主导广电直播全套项目,精通h.264/h.265/aac,曾亲自参与百度app上的网页播放器等实战产品。 目前全身心自主创业,主要聚焦音视频+流媒体行业,精通音视频加密、流媒体在线转码快编等热门产品。

62,614

社区成员

发帖
与我相关
我的任务
社区描述
Java 2 Standard Edition
社区管理员
  • Java SE
加入社区
  • 近7日
  • 近30日
  • 至今
社区公告
暂无公告

试试用AI创作助手写篇文章吧