封装开发中常用的
SpringBoot集成。配套前端：Vue3 后台管理模板
<dependency>
<groupId>io.springfox</groupId>
<artifactId>springfox-swagger2</artifactId>
<version>${swagger.version}</version>
</dependency>
<dependency>
<groupId>com.github.xiaoymin</groupId>
<artifactId>swagger-bootstrap-ui</artifactId>
<version>${swagger-bootstrap-ui.version}</version>
</dependency>
<dependency>
<groupId>io.springfox</groupId>
<artifactId>springfox-swagger-ui</artifactId>
<version>${springfox-swagger-ui.version}</version>
</dependency>说明：
swagger-bootstrap-ui：通过http://ip:port/doc.html访问springfox-swagger-ui：通过http://ip:port/swagger-ui.html访问
/**
* @author：Java陈序员
* @date 2023-03-22 16:06
* @description swagger 配置类
*/
@Configuration
@EnableSwagger2
public class SwaggerConfig {
/**
* 文档信息
* @return
*/
@Bean
public ApiInfo apiInfo() {
return new ApiInfoBuilder()
.title("SpringBoot 开发脚手架")
.description("SpringBoot 快速开发脚手架")
.contact(new Contact("Java陈序员", "https://github.com/chenyl8848", "1063415880@qq.com"))
.version("1.0.0")
.build();
}
@Bean
public Docket docket(ApiInfo apiInfo) {
return new Docket(DocumentationType.SWAGGER_2)
.apiInfo(apiInfo)
.select()
.apis(RequestHandlerSelectors.basePackage("com.codechen.scaffold.controller"))
.paths(PathSelectors.any())
.build();
}
}<dependency>
<groupId>com.baomidou</groupId>
<artifactId>mybatis-plus-boot-starter</artifactId>
<version>${mybaits-plus.version}</version>
</dependency>@Configuration
@MapperScan(basePackages = {"com.codechen.scaffold.mapper"})
public class MyBatisPlusConfig {
/**
* 全局插件
*
* @return
*/
@Bean
public MybatisPlusInterceptor mybatisPlusInterceptor() {
MybatisPlusInterceptor mybatisPlusInterceptor = new MybatisPlusInterceptor();
// 分页插件
mybatisPlusInterceptor.addInnerInterceptor(new PaginationInnerInterceptor());
// 禁止全表 删除/更新 插件
mybatisPlusInterceptor.addInnerInterceptor(new BlockAttackInnerInterceptor());
// 乐观锁插件
mybatisPlusInterceptor.addInnerInterceptor(new OptimisticLockerInnerInterceptor());
return mybatisPlusInterceptor;
}
/**
* 自动填充字段
*
* @return
*/
@Bean
public MetaObjectHandler metaObjectHandler() {
return new MetaObjectHandler() {
@Override
public void insertFill(MetaObject metaObject) {
this.setFieldValByName("createTime", LocalDateTime.now(), metaObject);
this.setFieldValByName("updateTime", LocalDateTime.now(), metaObject);
this.setFieldValByName("logicDelete", CommonCodeEnum.NORMAL.getCode(), metaObject);
}
@Override
public void updateFill(MetaObject metaObject) {
this.setFieldValByName("updateTime", LocalDateTime.now(), metaObject);
}
};
}
}public class RSAUtil {
/**
* 算法类型
*/
public static final String ALGORITHMS = "RSA";
/**
* 公钥键名
*/
public static final String PUBLIC_KEY = "publicKey";
/**
* 私钥键名
*/
public static final String PRIVATE_KEY = "privateKey";
/**
* 随机生成密钥对
*
* @return
*/
public static Map<String, Object> generateKeyPairs() {
Map<String, Object> keyPairs = new HashMap<>();
try {
// KeyPairGenerator 用于生成公钥和私钥对
KeyPairGenerator keyPairGenerator = KeyPairGenerator.getInstance(ALGORITHMS);
// 初始化密钥对生成器，密钥大小为 96-1024 位
keyPairGenerator.initialize(1024, new SecureRandom());
// 生成一个密钥对
KeyPair keyPair = keyPairGenerator.generateKeyPair();
// 获取私钥
PrivateKey privateKey = keyPair.getPrivate();
// 获取公钥
PublicKey publicKey = keyPair.getPublic();
// 对私钥进行 base64 编码
String privateKeyString = new String(Base64.getEncoder().encode(privateKey.getEncoded()));
// 对公钥进行 base64 编码
String publicKeyString = new String(Base64.getEncoder().encode(publicKey.getEncoded()));
keyPairs.put(PRIVATE_KEY, privateKeyString);
keyPairs.put(PUBLIC_KEY, publicKeyString);
} catch (NoSuchAlgorithmException e) {
e.printStackTrace();
}
return keyPairs;
}
/**
* 公钥加密
*
* @param content 明文
* @param publicKey 公钥
* @param charset 字符编码
* @return 密文
*/
public static String encrypt(String content, String publicKey, Charset charset) {
String encryptContent = "";
try {
byte[] decode = Base64.getDecoder().decode(publicKey);
PublicKey pubKey = KeyFactory.getInstance(ALGORITHMS).generatePublic(new X509EncodedKeySpec(decode));
Cipher cipher = Cipher.getInstance(ALGORITHMS);
cipher.init(Cipher.ENCRYPT_MODE, pubKey);
final byte[] bytes = content.getBytes(charset);
//字符串长度
final int len = bytes.length;
int offset = 0;//偏移量
int i = 0;//所分的段数
final ByteArrayOutputStream bos = new ByteArrayOutputStream();
while (len > offset) {
byte[] cache;
if (len - offset > 117) {
cache = cipher.doFinal(bytes, offset, 117);
} else {
cache = cipher.doFinal(bytes, offset, len - offset);
}
bos.write(cache);
i++;
offset = 117 * i;
}
bos.close();
encryptContent = new String(Base64.getEncoder().encode(bos.toByteArray())).replaceAll("[\r\n]", "");
} catch (InvalidKeySpecException | NoSuchAlgorithmException | NoSuchPaddingException
| InvalidKeyException | IllegalBlockSizeException | BadPaddingException
| IOException e) {
e.printStackTrace();
}
return encryptContent;
}
/**
* 公钥加密
*
* @param content 明文
* @param publicKey 公钥
* @return 密文
*/
public static String encrypt(String content, String publicKey) {
return encrypt(content, publicKey, StandardCharsets.UTF_8);
}
/**
* 私钥解密
*
* @param encryptContent 密文
* @param privateKey 私钥
* @param charset 字符
* @return 明文
*/
public static String decrypt(String encryptContent, String privateKey, Charset charset) {
String content = "";
try {
final byte[] decoded = Base64.getDecoder().decode(privateKey);
RSAPrivateKey priKey = (RSAPrivateKey) KeyFactory.getInstance(ALGORITHMS).generatePrivate(new PKCS8EncodedKeySpec(decoded));
Cipher cipher = Cipher.getInstance(ALGORITHMS);
cipher.init(Cipher.DECRYPT_MODE, priKey);
final byte[] inputByte = Base64.getDecoder().decode(encryptContent.getBytes(charset));
final int len = inputByte.length;
int offset = 0;
int i = 0;
final ByteArrayOutputStream bos = new ByteArrayOutputStream();
while (len - offset > 0) {
byte[] cache;
if (len - offset > 128) {
cache = cipher.doFinal(inputByte, offset, 128);
} else {
cache = cipher.doFinal(inputByte, offset, len - offset);
}
bos.write(cache);
i++;
offset = 128 * i;
}
bos.close();
content = new String(bos.toByteArray(), charset);
} catch (InvalidKeyException | InvalidKeySpecException | NoSuchAlgorithmException
| NoSuchPaddingException | IllegalBlockSizeException | BadPaddingException | IOException e) {
e.printStackTrace();
}
return content;
}
/**
* 私钥解密
*
* @param encryptContent 密文
* @param privateKey 私钥
* @return 明文
*/
public static String decrypt(String encryptContent, String privateKey) {
return decrypt(encryptContent, privateKey, StandardCharsets.UTF_8);
}
}public class MD5Util {
private static final String ALGORITHMS = "MD5";
/**
* MD5 加密
*
* @param content 明文
* @param charset 字符
* @return 摘要
*/
public static String MD5(String content, Charset charset) {
String md5 = "";
try {
MessageDigest messageDigest = MessageDigest.getInstance(ALGORITHMS);
messageDigest.update(content.getBytes(charset));
md5 = new BigInteger(1, messageDigest.digest()).toString(16);
} catch (NoSuchAlgorithmException e) {
e.printStackTrace();
}
return md5;
}
/**
* MD5 加密
*
* @param content 明文
* @param salt 随机盐
* @param charset 字符
* @return 摘要
*/
public static String MD5(String content, String salt, Charset charset) {
String md5 = "";
try {
MessageDigest messageDigest = MessageDigest.getInstance(ALGORITHMS);
messageDigest.update(content.getBytes(charset));
messageDigest.update(salt.getBytes(charset));
md5 = new BigInteger(1, messageDigest.digest()).toString(16);
} catch (NoSuchAlgorithmException e) {
e.printStackTrace();
}
return md5;
}
/**
* MD5 加密
*
* @param content 明文
* @return 摘要
*/
public static String MD5(String content) {
return MD5(content, StandardCharsets.UTF_8);
}
/**
* MD5 加密
*
* @param content 明文
* @param salt 随机盐
* @return 摘要
*/
public static String MD5(String content, String salt) {
return MD5(content, salt, StandardCharsets.UTF_8);
}
}