refactor: refactoring code; update encryption algorithm; add build ci;

Dockerfile

@@ -0,0 +1,24 @@
+# ===== build stage =====
+FROM harbor.merlin.xin/mirrors/docker.io/library/maven:3.9.6-eclipse-temurin-17 AS builder
+
+WORKDIR /app
+COPY pom.xml .
+RUN --mount=type=cache,target=/root/.m2 mvn -B -q dependency:go-offline
+
+COPY . .
+RUN --mount=type=cache,target=/root/.m2 mvn -B -q package -DskipTests
+
+
+# ===== runtime stage =====
+FROM harbor.merlin.xin/mirrors/docker.io/library/eclipse-temurin:17-jre-alpine
+
+WORKDIR /app
+COPY --from=builder /app/target/*.jar app.jar
+
+RUN mkdir uploads/photo
+
+# 非 root 用户运行
+RUN addgroup -S spring && adduser -S spring -G spring
+USER spring
+
+ENTRYPOINT ["java","-jar","/app/app.jar"]