init: rebuild myplayer-backend

src/main/java/xin/merlin/myplayerbackend/utils/JwtUtil.java

@@ -0,0 +1,110 @@
+package xin.merlin.myplayerbackend.utils;
+
+import io.jsonwebtoken.*;
+import io.jsonwebtoken.security.Keys;
+import jakarta.annotation.PostConstruct;
+import lombok.RequiredArgsConstructor;
+import org.springframework.stereotype.Component;
+import xin.merlin.myplayerbackend.config.security.JwtProperties;
+
+
+import javax.crypto.SecretKey;
+import java.nio.charset.StandardCharsets;
+import java.util.Date;
+import java.util.UUID;
+
+@Component
+@RequiredArgsConstructor
+public class JwtUtil {
+
+    private final JwtProperties jwtProperties;
+
+    private SecretKey key;
+    private JwtParser jwtParser;
+
+    @PostConstruct
+    public void init() {
+        try {
+            // 从配置文件密钥生成 SecretKey
+            this.key = Keys.hmacShaKeyFor(jwtProperties.getSecret().getBytes(StandardCharsets.UTF_8));
+            this.jwtParser = Jwts.parser()
+                    .verifyWith(key)
+                    .build();
+        } catch (Exception e) {
+            throw new RuntimeException("JWT 密钥初始化失败，请检查配置文件 jwt.secret", e);
+        }
+    }
+
+    /**
+     * 生成 JWT Token
+     */
+    public String generateToken(String uAccount, Integer uId) {
+        Date now = new Date();
+        Date expireDate = new Date(now.getTime() + jwtProperties.getExpire() * 1000L);
+
+        return Jwts.builder()
+                .subject(uAccount)
+                .claim("id", uId)
+                .claim("account", uAccount)
+                .id(UUID.randomUUID().toString())
+                .issuedAt(now)
+                .expiration(expireDate)
+                .issuer(jwtProperties.getIssuer())
+                .signWith(key, Jwts.SIG.HS256) // JJWT 0.12.6推荐的写法
+                .compact();
+    }
+
+    /**
+     * 解析 Token 获取 Claims
+     */
+    public Claims getClaims(String token) {
+        try {
+            Jws<Claims> jws = jwtParser.parseSignedClaims(token);
+            System.out.println(jws.getPayload());
+            return jws.getPayload();
+        } catch (ExpiredJwtException e) {
+            throw new TokenExpiredException("Token 已过期", e);
+        } catch (JwtException e) {
+            throw new InvalidTokenException("无效的 Token", e);
+        } catch (Exception e) {
+            throw new InvalidTokenException("解析 Token 失败", e);
+        }
+    }
+
+    /**
+     * 判断 Token 是否过期
+     */
+    public boolean isTokenExpired(String token) {
+        Claims claims = getClaims(token);
+        return claims.getExpiration().before(new Date());
+    }
+
+    /**
+     * 获取账号
+     */
+    public String getUAccount(String token) {
+        Claims claims = getClaims(token);
+        return claims.getSubject();
+    }
+
+    /**
+     * 获取用户ID
+     */
+    public String getUId(String token) {
+        Claims claims = getClaims(token);
+        return claims.get("id", String.class);
+    }
+
+    // 自定义异常类
+    public static class TokenExpiredException extends RuntimeException {
+        public TokenExpiredException(String message, Throwable cause) {
+            super(message, cause);
+        }
+    }
+
+    public static class InvalidTokenException extends RuntimeException {
+        public InvalidTokenException(String message, Throwable cause) {
+            super(message, cause);
+        }
+    }
+}

src/main/java/xin/merlin/myplayerbackend/utils/result/Response.java

@@ -0,0 +1,33 @@
+package xin.merlin.myplayerbackend.utils.result;
+
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+import java.time.LocalDateTime;
+
+@Data
+@NoArgsConstructor
+@AllArgsConstructor
+public class Response<T> {
+    private int code;
+    private String message;
+    private T data;
+
+    // 请求成功
+    public static <T> Response<T> success(ResultCode code , T data){
+        System.out.println( LocalDateTime.now()+" success : \n"+code);
+        return new Response<T>(code.getCode(), code.getMessage(), data);
+    }
+    public static <T> Response<T> success(ResultCode code){
+        System.out.println( LocalDateTime.now()+" success : \n"+code);
+        return new Response<T>(code.getCode(), code.getMessage(),null);
+    }
+
+    // 请求失败
+    public static <T> Response<T> fail(ResultCode code){
+        System.out.println( LocalDateTime.now()+" fail : \n"+code);
+        return new Response<T>(code.getCode(),code.getMessage(), null);
+    }
+
+}

src/main/java/xin/merlin/myplayerbackend/utils/result/ResultCode.java

@@ -0,0 +1,37 @@
+package xin.merlin.myplayerbackend.utils.result;
+
+import lombok.Getter;
+
+/**
+ * 通用状态码枚举类
+ */
+@Getter
+public enum ResultCode {
+
+    SUCCESS(200, "成功"),
+    BAD_REQUEST(400, "请求参数错误"),
+    UNAUTHORIZED(401, "未认证或登录已过期"),
+    FORBIDDEN(403, "无权限访问"),
+    NOT_FOUND(404, "资源不存在"),
+    SERVER_ERROR(500, "服务器内部错误"),
+
+    // 自定义业务错误码
+    USER_BANNED(1000,"用户被封禁"),
+    USER_NOT_FOUND(1001, "用户不存在"),
+    USER_EXIST(1003,"用户已存在"),
+    USER_PASSWORD_ERROR(1004,"用户密码错误"),
+    USER_VERIFICATION_ERROR(1005,"验证码不存在或错误"),
+    USER_SEND_TOO_FAST(1006,"用户请求过快"),
+    USER_SEND_TOO_OFTEN(1007,"请求次数过多，已被限制"),
+    ORDER_NOT_FOUND(2000, "订单不存在");
+
+
+
+    private final int code;
+    private final String message;
+
+    ResultCode(int code, String message) {
+        this.code = code;
+        this.message = message;
+    }
+}