加密Spring Boot中的application.properties

然后把war放到webapps下就可以了.

这种方式最简单,设置好了环境变量,修改配置文件:

直接war打包部署就行.

Spring Boot2.2.1之后支持非对称加密,密钥对的格式可以为PEM/DER.

这里使用的一位大佬的RSA自定义位数加密工具类(戳这里),无需额外依赖,仅自带JDK实现(JDK8+).

import java.util.base64;
import javax.crypto.Cipher;
import java.security.KeyFactory;
import java.security.KeyPair;
import java.security.KeyPairGenerator;
import java.security.NoSuchAlgorithmException;
import java.security.SecureRandom;
import java.security.interfaces.RSAPrivateKey;
import java.security.interfaces.RSAPublicKey;
import java.security.spec.PKCS8EncodedKeySpec;
import java.security.spec.X509EncodedKeySpec;
import java.util.HashMap;
import java.util.Map;

public class Test {
    
    private final static int KEY_SIZE = 2048;
    
    private static Map keyMap = new HashMap();
    
    public static void genKeyPair() throws NoSuchAlgorithmException {
 // KeyPairGenerator类用于生成公钥和私钥对，基于RSA算法生成对象
 KeyPairGenerator keyPairGen = KeyPairGenerator.getInstance("RSA");
 // 初始化密钥对生成器
 keyPairGen.initialize(KEY_SIZE, new SecureRandom());
 // 生成一个密钥对，保存在keyPair中
 KeyPair keyPair = keyPairGen.generateKeyPair();
 // 得到私钥
 RSAPrivateKey privateKey = (RSAPrivateKey) keyPair.getPrivate();
 // 得到公钥
 RSAPublicKey publicKey = (RSAPublicKey) keyPair.getPublic();
 String publicKeyString = base64.getEncoder().encodeToString(publicKey.getEncoded());
 // 得到私钥字符串
 String privateKeyString = base64.getEncoder().encodeToString(privateKey.getEncoded());
 // 将公钥和私钥保存到Map
 //0表示公钥
 keyMap.put(0, publicKeyString);
 //1表示私钥
 keyMap.put(1, privateKeyString);
    }
    
    public static String encrypt(String str, String publicKey) throws Exception {
 //base64编码的公钥
 byte[] decoded = base64.getDecoder().decode(publicKey);
 RSAPublicKey pubKey = (RSAPublicKey) KeyFactory.getInstance("RSA").generatePublic(new X509EncodedKeySpec(decoded));
 //RSA加密
 Cipher cipher = Cipher.getInstance("RSA");
 cipher.init(Cipher.ENCRYPT_MODE, pubKey);
 String outStr = base64.getEncoder().encodeToString(cipher.doFinal(str.getBytes("UTF-8")));
 return outStr;
    }
    
    public static String decrypt(String str, String privateKey) throws Exception {
 //64位解码加密后的字符串
 byte[] inputByte = base64.getDecoder().decode(str);
 //base64编码的私钥
 byte[] decoded = base64.getDecoder().decode(privateKey);
 RSAPrivateKey priKey = (RSAPrivateKey) KeyFactory.getInstance("RSA").generatePrivate(new PKCS8EncodedKeySpec(decoded));
 //RSA解密
 Cipher cipher = Cipher.getInstance("RSA");
 cipher.init(Cipher.DECRYPT_MODE, priKey);
 String outStr = new String(cipher.doFinal(inputByte));
 return outStr;
    }
    
    public static void main(String[] args) throws Exception {
 long temp = System.currentTimeMillis();
 //生成公钥和私钥
 genKeyPair();
 //加密字符串
 System.out.println("公钥:" + keyMap.get(0));
 System.out.println("私钥:" + keyMap.get(1));
 System.out.println("生成密钥消耗时间:" + (System.currentTimeMillis() - temp) / 1000.0 + "秒");
 // String message = "RSA测试ABCD~!@#$";
 String message = "test";
 System.out.println("原文:" + message);
 temp = System.currentTimeMillis();
 String messageEn = encrypt(message, keyMap.get(0));
 System.out.println("密文:" + messageEn);
 System.out.println("加密消耗时间:" + (System.currentTimeMillis() - temp) / 1000.0 + "秒");
 temp = System.currentTimeMillis();
 String messageDe = decrypt(messageEn, keyMap.get(1));
 System.out.println("解密:" + messageDe);
 System.out.println("解密消耗时间:" + (System.currentTimeMillis() - temp) / 1000.0 + "秒");
    }
}