文章目录

• Maven项目结构图
• 引入依赖
• AESUtils
• EnDecryptUtil
• EncryptProperties
• EncryptAutoConfiguration
• spring.factories
• 打成jar包，供其他项目 / 人使用
• • 打成jar 包
  • 导入 jar 包
• 测试
• • application.yaml
  • User类
  • HelloController 测试

代码地址：
链接：https://pan.baidu.com/s/1SKKo6yMG6gQOe6G2TCuAqw
提取码：yyds

Maven项目结构图

引入依赖

com.github.encrypt
encrypt-spring-boot-starter
1.01.8UTF-8UTF-82.3.12.RELEASE
org.springframework.bootspring-boot-configuration-processororg.projectlomboklombokorg.springframework.bootspring-boot-starter-web

AESUtils

import javax.crypto.Cipher;
import javax.crypto.spec.SecretKeySpec;
import java.util.Base64;public class AESUtils {private static final String AES_ALGORITHM = "AES/ECB/PKCS5Padding";// 获取 cipherprivate static Cipher getCipher(byte[] key, int model) throws Exception {SecretKeySpec secretKeySpec = new SecretKeySpec (key, "AES");Cipher cipher = Cipher.getInstance (AES_ALGORITHM);cipher.init (model, secretKeySpec);return cipher;}// AES 加密public static String encrypt(byte[] data, byte[] key) throws Exception {Cipher cipher = getCipher (key, Cipher.ENCRYPT_MODE);return java.util.Base64.getEncoder ().encodeToString (cipher.doFinal (data));}// AES 解密public static byte[] decrypt(byte[] data, byte[] key) throws Exception {Cipher cipher = getCipher (key, Cipher.DECRYPT_MODE);return cipher.doFinal (Base64.getDecoder ().decode (data));}
}

EnDecryptUtil

http 传输会把 + 号转为 空格
把 所有空格换成 +号，这是个 bug

package endecode;import com.fasterxml.jackson.databind.ObjectMapper;
import lombok.NoArgsConstructor;
import lombok.extern.slf4j.Slf4j;import java.io.IOException;@NoArgsConstructor
@Slf4j
public class EnDecryptUtil {private String key;private ObjectMapper om;public EnDecryptUtil(String key, ObjectMapper om) {this.om = om;this.key = key;}public  T decrypt(String data, Class classType) throws Exception {log.info ("decrypt  method start ");if (key == null || key.length () != 16) {log.error ("spring.encrypt.key 不能为空 或长度不满足16！");return classType.newInstance ();}byte[] keyBytes = key.getBytes ();if (data == null || data.length () == 0) {log.error ("解密的数据 不能为空！");return classType.newInstance ();}char[] dataChars = data.toCharArray ();// http 传输会把 +号转为 空格//把 所有空格换成 +号，这是个bugboolean flag = false;for (int i = 0; i < dataChars.length; i++) {if (dataChars[i] == ' ') {dataChars[i] = '+';flag = true;}}if (flag) data = new String (dataChars);byte[] dataBytes = data.getBytes ();log.info ("请求（原加密）参数:{}", data);byte[] decrypt = new byte[0];try {decrypt = AESUtils.decrypt (dataBytes, keyBytes);} catch (Exception e) {log.error (" 请求参数（原加密）错误 / key 错误，无法解析", e.getMessage ());return classType.newInstance ();}if (decrypt.length == 0) return null;T rawData = null;try {rawData = om.readValue (decrypt, classType);} catch (IOException e) {log.error ("readValue转化 Exception,parameters:{}", rawData);e.printStackTrace ();}log.info ("解密后的参数: {}", rawData);log.info ("decrypt  method  end ");return rawData == null ? classType.newInstance () : rawData;}public  String encrypt(T data) {if (data == null) {log.error ("加密的数据 不能为空！");return "加密的数据 不能为空！";}log.info ("encrypt  method start ");if (key == null || key.length () != 16) {log.error ("spring.encrypt.key 不能为空 或长度不满足16！");return "spring.encrypt.key 不能为空 或长度不满足16！";}byte[] keyBytes = key.getBytes ();String encryptData = null;try {encryptData = AESUtils.encrypt (om.writeValueAsBytes (data), keyBytes);} catch (Exception e) {log.error ("  加密失败 / key 错误，无法解析", e.getMessage ());}log.info ("encrypt  method  end ");return encryptData == null ? "加密失败" : encryptData;}}

EncryptProperties

import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.stereotype.Component;@Component
@ConfigurationProperties(prefix = "spring.encrypt")
public class EncryptProperties {private final static String DEFAULT_KEY = "1Pxwol9WnHtpD5Tz";private String key = DEFAULT_KEY;public String getKey() {return key;}public void setKey(String key) {this.key = key;}
}

EncryptAutoConfiguration

import com.fasterxml.jackson.databind.ObjectMapper;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;import javax.annotation.Resource;@Configuration
@ComponentScan("endecode")
public class EncryptAutoConfiguration {@Resourceprivate EncryptProperties encryptProperties;@Resourceprivate ObjectMapper om;@Bean("enDecryptUtil")public EnDecryptUtil enDecryptUtil() {return new EnDecryptUtil (encryptProperties.getKey (), om);}
}

spring.factories

resources下新建目录META-INF

org.springframework.boot.autoconfigure.EnableAutoConfiguration=\endecode.EncryptAutoConfiguration

打成jar包，供其他项目 / 人使用

打成jar 包

起个名

选择要导出的模块


**左上角 工具栏处 **



查看jar包 所在目录

导入 jar 包

测试

application.yaml

spring:encrypt:key: woshigedashuaige

User类

import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;@Data
@AllArgsConstructor
@NoArgsConstructor
public class User {private Long id;private String username;//省略 getter/setter
}

HelloController 测试

import com.example.demo.util.Result;
import endecode.EnDecryptUtil;
import lombok.extern.slf4j.Slf4j;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RestController;import javax.annotation.Resource;@RestController
@Slf4j
public class HelloController {@Resource//引入enDecryptUtilprivate EnDecryptUtil enDecryptUtil;@GetMapping("/user")public Result getUser() {User user = new User (100L, "I am xiao ding");//加密String encryptData = enDecryptUtil.encrypt (user);return Result.ok (encryptData);}@PostMapping("/user")// http传输会把 +号转为空格public Result addUser(String encodeMsg) throws Exception {//解密User user = enDecryptUtil.decrypt (encodeMsg, User.class);if (user.getId () == null) {user.setId (1L);user.setUsername ("找不到");}return Result.ok (user);}
}

启动项目

加密操作

返回的是加密后的数据

解密操作

参数为空 或者不正确

参数正确

完成