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编译部署代码包

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一键部署

您可以在本地Java运行环境(Maven或Serverless Devs工具)编译程序,打包为ZIP包或JAR包,然后在函数计算控制台或使用Serverless Devs工具上传代码包,并正确运行您的代码。

Java运行时依赖库

要创建部署代码包,请将函数代码和依赖库共同编译并打包为ZIP包或JAR包。

函数计算平台为Java运行时提供以下依赖库:

以上依赖库可通过Maven中央存储库获取。获取以上依赖库后将其添加到您的pom.xml文件中,如下所示:

<!-- https://mvnrepository.com/artifact/com.aliyun.fc.runtime/fc-java-core -->
<dependency>
    <groupId>com.aliyun.fc.runtime</groupId>
    <artifactId>fc-java-core</artifactId>
    <version>1.4.1</version>
</dependency>

<!-- https://mvnrepository.com/artifact/com.aliyun.fc.runtime/fc-java-event -->
<dependency>
    <groupId>com.aliyun.fc.runtime</groupId>
    <artifactId>fc-java-event</artifactId>
    <version>1.2.0</version>
</dependency>
说明

如果依赖包太大,可将依赖打包到层中,以减少代码包体积。具体操作,请参见创建自定义层

使用Maven编译并部署

前提条件

安装Java和Maven。关于Java的详细信息,请参见官网。关于Maven的详细信息,请参见Installing Apache Maven

操作步骤

  1. 创建一个Java项目,其中App.java文件路径如下。

    src/main/java/example/App.java  

    App.java文件中输入示例代码。具体示例代码,请参见请求处理程序(Handler)上下文

  2. pom.xml文件中配置build,示例如下。

    <build>
            <plugins>
                  <plugin>
                      <groupId>org.apache.maven.plugins</groupId>
                      <artifactId>maven-shade-plugin</artifactId>
                      <version>3.2.1</version>
                      <executions>
                        <execution>
                          <phase>package</phase>
                          <goals>
                            <goal>shade</goal>
                          </goals>
                          <configuration>
                            <filters>
                              <filter>
                                <artifact>*:*</artifact>
                                <excludes>
                                  <exclude>META-INF/*.SF</exclude>
                                  <exclude>META-INF/*.DSA</exclude>
                                  <exclude>META-INF/*.RSA</exclude>
                                </excludes>
                              </filter>
                            </filters>
                          </configuration>
                        </execution>
                      </executions>
                  </plugin>
            </plugins>
    </build>
    说明

    您可以使用Apache Maven Shade插件或Apache Maven Assembly插件,以上示例仅以Apache Maven Shade插件为例。

    展开查看完整的pom.xml文件示例。

    <project xmlns="http://maven.apache.org/POM/4.0.0"
      xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
      <modelVersion>4.0.0</modelVersion>
      <groupId>example</groupId>
      <artifactId>HelloFCJava</artifactId>
      <packaging>jar</packaging>
      <version>1.0-SNAPSHOT</version>
      <name>HelloFCJava</name>
    
      <dependencies>
        <dependency>
          <groupId>junit</groupId>
          <artifactId>junit</artifactId>
          <version>3.8.1</version>
          <scope>test</scope>
        </dependency>
        <dependency>
          <groupId>com.aliyun.fc.runtime</groupId>
          <artifactId>fc-java-core</artifactId>
          <version>1.4.1</version>
        </dependency>
      </dependencies>
    
      <build>
        <plugins>
            <plugin>
              <groupId>org.apache.maven.plugins</groupId>
              <artifactId>maven-shade-plugin</artifactId>
              <version>3.2.1</version>
              <executions>
                <execution>
                  <phase>package</phase>
                  <goals>
                    <goal>shade</goal>
                  </goals>
                  <configuration>
                    <filters>
                      <filter>
                        <artifact>*:*</artifact>
                        <excludes>
                          <exclude>META-INF/*.SF</exclude>
                          <exclude>META-INF/*.DSA</exclude>
                          <exclude>META-INF/*.RSA</exclude>
                        </excludes>
                      </filter>
                    </filters>
                  </configuration>
                </execution>
              </executions>
            </plugin>
        </plugins>
      </build>
    
      <properties>
        <maven.compiler.target>1.8</maven.compiler.target>
        <maven.compiler.source>1.8</maven.compiler.source>
        <maven.test.skip>true</maven.test.skip>
      </properties>
    </project>
  3. 打开命令行窗口,切换至项目的根目录,然后执行mvn clean package命令打包。

    示例代码如下。

    [INFO] Scanning for projects...
     ...  ....   ....
    [INFO] --------------------------< example:example >---------------------------
    [INFO] Building java-example 1.0-SNAPSHOT
    [INFO] --------------------------------[ jar ]---------------------------------
     ...  ....   ....
    [INFO] ------------------------------------------------------------------------
    [INFO] BUILD SUCCESS
    [INFO] ------------------------------------------------------------------------
    [INFO] Total time:  11.681 s
    [INFO] Finished at: 2020-03-26T15:55:05+08:00
    [INFO] ------------------------------------------------------------------------
    • 如果显示编译失败,请根据输出的编译错误信息调整代码。

    • 如果编译成功,编译后的JAR包位于项目文件夹内的target目录内,并根据pom.xml内的artifactIdversion字段命名为java-example-1.0-SNAPSHOT.jar

      重要

      针对macOS和Linux操作系统,压缩前请确保代码文件具有可读和可执行权限。

  4. 登录函数计算控制台,找到目标函数,在函数详情页面的代码页签,上传您上一步打包的代码包,然后单击测试函数进行测试。

    image

使用Serverless Devs编译并部署

前提条件

操作步骤

  1. 执行以下命令,初始化项目。

    s init 

    根据界面提示依次选择阿里云厂商、模板、运行时以及部署应用的地域和函数名称等。

    image

  2. 执行以下命令,进入项目目录。

    cd start-fc-event-java8

    代码目录结构如下:

    start-fc-event-java8
    ├── src
    │   └── main
    │       └── java
    │           └── example
    │               └── App.java
    ├── pom.xml
    ├── readme
    └── s.yaml
  3. 执行以下命令,部署项目。

    s deploy

    执行该命令会先执行pre-deploypre-deploy会执行mvn package编译打包,然后上传部署代码包。输出示例如下:

    [2022-04-07 12:00:09] [INFO] [S-CORE] - Start the pre-action
    [2022-04-07 12:00:09] [INFO] [S-CORE] - Action: mvn package
    [INFO] Scanning for projects...
    [INFO]
    [INFO] ------------------------< example:HelloFCJava >-------------------------
    [INFO] Building HelloFCJava 1.0-SNAPSHOT
    [INFO] --------------------------------[ jar ]---------------------------------
    ......
    [INFO] ------------------------------------------------------------------------
    [INFO] BUILD SUCCESS
    [INFO] ------------------------------------------------------------------------
    [INFO] Total time:  3.617 s
    [INFO] Finished at: 2022-04-07T20:00:14+08:00
    [INFO] ------------------------------------------------------------------------
    [2022-04-07 12:00:14] [INFO] [S-CORE] - End the pre-action
    
    ✔ Checking Service, Function (0.64s)
    ✔ Creating Service, Function (0.71s)
    
    Tips for next step
    ======================
    * Display information of the deployed resource: s info
    * Display metrics: s metrics
    * Display logs: s logs
    * Invoke remote function: s invoke
    * Remove Service: s remove service
    * Remove Function: s remove function
    * Remove Trigger: s remove trigger
    * Remove CustomDomain: s remove domain
    
    
    
    helloworld:
      region:   cn-hangzhou
      service:
        name: hello-world-service
      function:
        name:       start-fc-event-java8
        runtime:    java8
        handler:    example.App::handleRequest
        memorySize: 128
        timeout:    60
  4. 执行s invoke命令进行测试。

    输出示例如下:

    ➜  start-fc-event-java8 s invoke
    ========= FC invoke Logs begin =========
    FC Initialize Start RequestId: b246c3bf-06bc-49e5-92b8-xxxxxxxx
    FC Initialize End RequestId: b246c3bf-06bc-49e5-92b8-xxxxxxxx
    FC Invoke Start RequestId: b246c3bf-06bc-49e5-92b8-xxxxxxxx
    FC Invoke End RequestId: b246c3bf-06bc-49e5-92b8-xxxxxxxx
    
    Duration: 7.27 ms, Billed Duration: 8 ms, Memory Size: 128 MB, Max Memory Used: 65.75 MB
    ========= FC invoke Logs end =========
    
    FC Invoke Result:
    hello world
    
    
    
    End of method: invoke

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