打包简化，dockerfile简化

Dockerfile

@@ -1,27 +1,9 @@
-# 构建阶段：Maven + JDK 17 编译，生成薄 jar 及依赖
-FROM maven:3.9-eclipse-temurin-17-alpine AS builder
+FROM registry.bjzgzp.com:4433/library/eclipse-temurin:21-jdk-ubi10-minimal
+
 WORKDIR /app
 
-# 优先复制 pom.xml 利用 Docker 层缓存（依赖不变时跳过 go-offline）
-COPY pom.xml .
-RUN mvn dependency:go-offline -q
+COPY ./target/label-backend-1.0.0-SNAPSHOT.jar /app/label-backend-1.0.0-SNAPSHOT.jar
 
-COPY src ./src
-RUN mvn clean package -DskipTests -q
+EXPOSE 18082
 
-# 运行阶段：仅含 JRE 的精简镜像
-FROM eclipse-temurin:17-jre-alpine
-WORKDIR /app
-
-# 复制部署结构：bin/ libs/ etc/
-COPY --from=builder /app/scripts/start.sh                 bin/start.sh
-COPY --from=builder /app/target/libs/                      libs/
-COPY --from=builder /app/src/main/resources/application.yml etc/application.yml
-COPY --from=builder /app/src/main/resources/logback.xml    etc/logback.xml
-
-RUN mkdir -p logs && chmod +x bin/start.sh
-
-EXPOSE 8080
-
-# start.sh 检测到 /.dockerenv 后以 exec 前台方式运行
-ENTRYPOINT ["bin/start.sh"]
+ENTRYPOINT ["java", "-Djava.net.preferIPv4Stack=true", "-jar", "/app/label-backend-1.0.0-SNAPSHOT.jar"]