前后端数据加密代码实战（vue3.4+springboot 2.7.18）

前端Vue 3.4代码示例：

<template>
  <div>
    <input v-model="data" placeholder="请输入数据" />
    <button @click="encryptData">加密数据</button>
    <button @click="decryptData">解密数据</button>
    <p>加密结果: {{ encryptedData }}</p>
    <p>解密结果: {{ decryptedData }}</p>
  </div>
</template>
 
<script>
import CryptoJS from 'crypto-js'
 
export default {
  data() {
    return {
      data: '',
      encryptedData: '',
      decryptedData: ''
    }
  },
  methods: {
    encryptData() {
      // 假设'secretKey'是从后端获取的密钥
      const secretKey = 'your-secret-key'
      this.encryptedData = CryptoJS.AES.encrypt(this.data, secretKey).toString()
    },
    decryptData() {
      // 假设'secretKey'是从后端获取的密钥
      const secretKey = 'your-secret-key'
      try {
        const bytes = CryptoJS.AES.decrypt(this.encryptedData, secretKey)
        this.decryptedData = bytes.toString(CryptoJS.enc.Utf8)
      } catch (e) {
        console.error('无法解密数据')
      }
    }
  }
}
</script>

后端Spring Boot 2.7.18代码示例：

import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RestController;
import javax.crypto.Cipher;
import javax.crypto.spec.SecretKeySpec;
import java.nio.charset.StandardCharsets;
import java.util.Base64;
 
@RestController
public class EncryptionController {
 
    private static final String SECRET_KEY = "your-secret-key"; // 密钥应该从安全的地方获取
 
    @PostMapping("/encrypt")
    public String encrypt(@RequestBody String data) throws Exception {
        Cipher cipher = Cipher.getInstance("AES");
        cipher.init(Cipher.ENCRYPT_MODE, new SecretKeySpec(SECRET_KEY.getBytes(StandardCharsets.UTF_8), "AES"));
        byte[] encryptedBytes = cipher.doFinal(data.getBytes(StandardCharsets.UTF_8));
        return Base64.getEncoder().encodeToString(encryptedBytes);
    }
 
    @PostMapping("/decrypt")
    public String decrypt(@RequestBody String encryptedData) throws Exception {
        Cipher cipher = Cipher.getInstance("AES");
        cipher.init(Cipher.DECRYPT_MODE, new SecretKeySpec(SECRET_KEY.getBytes(StandardCharsets.UTF_8), "AES"));
        byte[] decryptedBytes = cipher.doFinal(Base64.getDecoder().decode(encryptedData));
        return new String(decryptedBytes, StandardCharset