以下是补充了Java最新技术和框架实操内容的完整文章：
Java学习资料汇总（含最新技术实操）
一、Java基础环境搭建（Java 17+）
1. JDK 17 安装与配置
推荐使用 SDKMAN! 管理Java版本：
# 安装SDKMAN! curl -s "https://get.sdkman.io" | bash source "$HOME/.sdkman/bin/sdkman-init.sh" # 安装Java 17 LTS sdk install java 17.0.8-tem sdk default java 17.0.8-tem 2. 现代化IDE配置（IntelliJ IDEA）
- 启用Preview Features：Settings > Build, Execution, Deployment > Compiler > Java Compiler > Additional command line parameters:
--enable-preview - 配置Lombok插件：Settings > Plugins > Marketplace > 搜索"Lombok"并安装
二、Java新特性实战
1. 模式匹配（Java 17+）
// 旧写法 if (obj instanceof String) { String s = (String) obj; System.out.println(s.length()); } // 新模式匹配 if (obj instanceof String s) { System.out.println(s.length()); } // 结合switch表达式 Object obj = LocalDate.now(); int hashCode = switch (obj) { case String s -> s.hashCode(); case Integer i -> i.hashCode(); case LocalDate d -> d.getDayOfMonth(); default -> obj.toString().hashCode(); }; 2. 文本块（Java 15+）
// 旧写法 String html = "<html>\n" + " <body>\n" + " <p>Hello, World!</p>\n" + " </body>\n" + "</html>"; // 文本块写法 String html = """ <html> <body> <p>Hello, World!</p> </body> </html> """; 3. 记录类（Java 16+）
// 传统JavaBean public class Person { private final String name; private final int age; public Person(String name, int age) { this.name = name; this.age = age; } // getters, equals, hashCode, toString } // 记录类写法 record Person(String name, int age) { } 三、Spring Boot 3 与微服务实战
1. 创建RESTful API项目
使用Spring Initializr快速创建项目：
curl https://start.spring.io/starter.tgz -d dependencies=web,data-jpa,validation,actuator -d javaVersion=17 -d type=maven-project -d groupId=com.example -d artifactId=demo -d name=demo | tar -xzvf - 2. 控制器与验证
@RestController @RequestMapping("/api/users") public class UserController { @Autowired private UserService userService; @PostMapping public ResponseEntity<User> createUser(@Valid @RequestBody UserRequest request) { User user = userService.createUser(request); return ResponseEntity.created(URI.create("/api/users/" + user.getId())).body(user); } @GetMapping("/{id}") public ResponseEntity<User> getUser(@PathVariable Long id) { return userService.getUserById(id) .map(ResponseEntity::ok) .orElse(ResponseEntity.notFound().build()); } } // 验证注解示例 public record UserRequest( @NotBlank(message = "姓名不能为空") String name, @Email(message = "邮箱格式不正确") String email, @Min(value = 18, message = "必须年满18岁") Integer age ) { } 3. 配置文件分层管理
# application.yml spring: application: name: user-service profiles: active: dev # application-dev.yml spring: datasource: url: jdbc:postgresql://localhost:5432/user_db username: postgres password: password jpa: hibernate: ddl-auto: update properties: hibernate: dialect: org.hibernate.dialect.PostgreSQLDialect # application-prod.yml spring: datasource: url: jdbc:postgresql://prod-db:5432/user_db username: ${ DB_USERNAME} password: ${ DB_PASSWORD} 四、响应式编程（Spring WebFlux）
1. 创建响应式API
@RestController @RequestMapping("/api/books") public class BookController { @Autowired private BookRepository bookRepository; @GetMapping public Flux<Book> getAllBooks() { return bookRepository.findAll(); } @PostMapping public Mono<Book> createBook(@RequestBody Book book) { return bookRepository.save(book); } } // 响应式Repository public interface BookRepository extends ReactiveCrudRepository<Book, String> { Flux<Book> findByAuthor(String author); } 2. 响应式测试
@WebFluxTest(BookController.class) class BookControllerTest { @Autowired private WebTestClient webTestClient; @MockBean private BookRepository bookRepository; @Test void shouldReturnAllBooks() { Book book = new Book("1", "Java 17", "Doubao"); when(bookRepository.findAll()).thenReturn(Flux.just(book)); webTestClient.get().uri("/api/books") .exchange() .expectStatus().isOk() .expectBodyList(Book.class) .contains(book); } } 五、容器化与云原生部署
1. Dockerfile配置
# 基础镜像 FROM eclipse-temurin:17-jdk-alpine # 设置工作目录 WORKDIR /app # 复制依赖文件 COPY mvnw . COPY .mvn .mvn COPY pom.xml . # 下载依赖 RUN ./mvnw dependency:go-offline -B # 复制源代码 COPY src src # 构建应用 RUN ./mvnw package -DskipTests RUN mkdir -p target/dependency && (cd target/dependency; jar -xf ../*.jar) # 创建运行时镜像 FROM eclipse-temurin:17-jre-alpine VOLUME /tmp ARG DEPENDENCY=/app/target/dependency COPY --from=0 ${DEPENDENCY}/BOOT-INF/lib /app/lib COPY --from=0 ${DEPENDENCY}/META-INF /app/META-INF COPY --from=0 ${DEPENDENCY}/BOOT-INF/classes /app # 暴露端口 EXPOSE 8080 # 启动应用 ENTRYPOINT ["java","-cp","app:app/lib/*","com.example.demo.DemoApplication"] 2. Kubernetes部署清单
apiVersion: apps/v1 kind: Deployment metadata: name: user-service labels: app: user-service spec: replicas: 3 selector: matchLabels: app: user-service template: metadata: labels: app: user-service spec: containers: - name: user-service image: doubao/user-service:1.0.0 ports: - containerPort: 8080 env: - name: SPRING_PROFILES_ACTIVE value: prod - name: DB_USERNAME valueFrom: secretKeyRef: name: db-secret key: username - name: DB_PASSWORD valueFrom: secretKeyRef: name: db-secret key: password livenessProbe: httpGet: path: /actuator/health port: 8080 initialDelaySeconds: 30 periodSeconds: 10 readinessProbe: httpGet: path: /actuator/health port: 8080 initialDelaySeconds: 10 periodSeconds: 5 六、测试与DevOps实践
1. 单元测试与集成测试
@SpringBootTest @AutoConfigureMockMvc class UserControllerIntegrationTest { @Autowired private MockMvc mockMvc; @Autowired private UserRepository userRepository; @Test void shouldCreateUser() throws Exception { UserRequest request = new UserRequest("Doubao", "doubao@example.com", 20); mockMvc.perform(post("/api/users") .contentType(MediaType.APPLICATION_JSON) .content(objectMapper.writeValueAsString(request))) .andExpect(status().isCreated()) .andExpect(header().string("Location", containsString("/api/users/"))); assertThat(userRepository.count()).isEqualTo(1); } } 2. GitHub Actions CI/CD流程
name: Java CI with Maven on: push: branches: [ main ] pull_request: branches: [ main ] jobs: build: runs-on: ubuntu-latest steps: - uses: actions/checkout@v4 - name: Set up JDK 17 uses: actions/setup-java@v4 with: java-version: '17' distribution: 'temurin' cache: maven - name: Build with Maven run: mvn -B package --file pom.xml - name: Run Tests run: mvn test - name: Build Docker Image if: github.ref == 'refs/heads/main' uses: docker/build-push-action@v5 with: context: . push: false tags: doubao/user-service:${ { github.sha }} - name: Upload Artifact uses: actions/upload-artifact@v4 with: name: target path: target/*.jar 七、学习资源推荐（2025更新）
1. 官方文档
2. 在线课程
通过以上实操内容，你可以系统性地学习Java最新技术栈，从语言特性到微服务架构，再到云原生部署，形成完整的知识体系。建议按照从基础到高级的顺序逐步实践，并结合官方文档深入理解每个技术点的原理和最佳实践。
Java 最新技术，Java 框架实操，JDK 21 新特性，Spring Security 6.x, 安全框架搭建，Java 框架实例，Java 开发，编程实战，框架应用，技术教程，Java 进阶，后端开发，安全编程，Java 新特性，框架搭建实例
代码获取方式
https://pan.quark.cn/s/14fcf913bae6