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- # ---- 构建阶段 ----
- FROM maven:3.9-eclipse-temurin-17 AS build
- WORKDIR /app
- COPY pom.xml .
- # 先下载依赖，利用 Docker 缓存层
- RUN mvn dependency:go-offline -q
- COPY src ./src
- RUN mvn package -DskipTests -q
- # ---- 运行阶段 ----
- FROM eclipse-temurin:17-jre-jammy
- WORKDIR /app
- COPY --from=build /app/target/*.jar app.jar
- EXPOSE 8080
- ENTRYPOINT ["java", "-jar", "app.jar"]
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