通过Maven与Google Cloud Tools Eclipse部署Appengine标准项目的区别

Question

我正在尝试将项目部署到App Engine，尽管遇到了问题。主要问题是，当通过 Appengine maven 插件部署项目时，运行 cronjob 时会发生 nosuchmethod 错误。部署正常且没有错误。

以下命令用于部署：

mvn appengine:deploy -Dapp.deploy.version=version-number  
-Dapp.deploy.project=project-name

appengine maven 插件的配置如下：

    <plugin>
    <groupId>com.google.cloud.tools</groupId>
    <artifactId>appengine-maven-plugin</artifactId>
    <version>1.3.2</version>
    <configuration>
        <!-- deploy configuration -->
        <devserver.port>8888</devserver.port>
      <stage.enableJarClasses>false</stage.enableJarClasses> 
    </configuration>
    </plugin>

奇怪的是，当我在Eclipse中通过Google Cloud Tools GUI进行部署时，不会出现此问题：

https://cloud.google.com/eclipse/docs/deploying

我

怀疑这两种方法之间存在一些差异，我想知道这种差异可能是什么？

这样做的最终目标是最终通过 Jenkins 进行部署。因此，通过 GUI 进行部署不是一个长期的解决方案。

希望你们能帮帮我！

编辑：这是我目前的maven pom：

<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/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <groupId>name</groupId>
  <artifactId>name</artifactId>
  <version>123456-SNAPSHOT</version>
  <packaging>war</packaging>
  <build>
    <sourceDirectory>src</sourceDirectory>
    <resources>
      <resource>
        <directory>src</directory>
        <excludes>
          <exclude>**/*.java</exclude>
        </excludes>
      </resource>
    </resources>
    <plugins>
      <plugin>
        <artifactId>maven-compiler-plugin</artifactId>
        <version>3.5.1</version>
        <configuration>
          <source>1.8</source>
          <target>1.8</target>
        </configuration>
      </plugin>
      <plugin>
        <artifactId>maven-war-plugin</artifactId>
        <version>3.0.0</version>
        <configuration>
          <warSourceDirectory>war</warSourceDirectory>
        </configuration>
      </plugin>
      <plugin>
    <groupId>com.google.cloud.tools</groupId>
    <artifactId>endpoints-framework-maven-plugin</artifactId>
    <version>1.0.2</version>
    <configuration>
        <!-- plugin configuration -->
        <hostname>${endpoints.project.id}.appspot.com</hostname>
    </configuration>
</plugin>
<plugin>
    <groupId>com.google.cloud.tools</groupId>
    <artifactId>appengine-maven-plugin</artifactId>
    <version>2.0.0-rc5</version>
    <configuration>
        <!-- deploy configuration -->
        <devserver.port>8888</devserver.port>
      <stage.enableJarClasses>false</stage.enableJarClasses> 
    </configuration>
</plugin>
    </plugins>
  </build>
 <dependencies>
  <!-- https://mvnrepository.com/artifact/com.google.appengine/appengine-api-1.0-sdk -->
<!--          <dependency>
    <groupId>com.google.appengine</groupId>
    <artifactId>appengine-endpoints</artifactId>
    <version>1.9.54</version>
</dependency> -->
<dependency>
    <groupId>com.google.endpoints</groupId>
    <artifactId>endpoints-framework</artifactId>
    <version>2.0.13</version>
</dependency>
<!-- https://mvnrepository.com/artifact/javax.servlet/javax.servlet-api -->
    <dependency>
        <groupId>javax.servlet</groupId>
        <artifactId>javax.servlet-api</artifactId>
        <version>3.1.0</version>
        <scope>provided</scope>
    </dependency>
    <!-- https://mvnrepository.com/artifact/javax.persistence/persistence-api -->
<dependency>
    <groupId>javax.persistence</groupId>
    <artifactId>persistence-api</artifactId>
    <version>1.0.2</version>
</dependency>
<!-- https://mvnrepository.com/artifact/com.google.api-client/google-api-client -->
 <dependency>
    <groupId>com.google.api-client</groupId>
    <artifactId>google-api-client</artifactId>
    <version>1.22.0</version>
</dependency> 
<!-- https://mvnrepository.com/artifact/com.google.oauth-client/google-oauth-client -->
<dependency>
    <groupId>com.google.oauth-client</groupId>
    <artifactId>google-oauth-client</artifactId>
    <version>1.22.0</version>
</dependency> 
<!-- https://mvnrepository.com/artifact/com.google.code.gson/gson -->
 <dependency>
    <groupId>com.google.code.gson</groupId>
    <artifactId>gson</artifactId>
    <version>2.5</version>
</dependency>
<!-- https://mvnrepository.com/artifact/com.google.apis/google-api-services-sheets -->
 <dependency>
    <groupId>com.google.apis</groupId>
    <artifactId>google-api-services-sheets</artifactId>
    <version>v4-rev478-1.22.0</version>
</dependency> 
<!-- https://mvnrepository.com/artifact/com.google.apis/google-api-services-drive -->
<dependency>
    <groupId>com.google.apis</groupId>
    <artifactId>google-api-services-drive</artifactId>
    <version>v2-rev247-1.22.0</version>
</dependency>
<!-- https://mvnrepository.com/artifact/com.google.apis/google-api-services-storage -->
<dependency>
    <groupId>com.google.apis</groupId>
    <artifactId>google-api-services-storage</artifactId>
    <version>v1-rev62-1.21.0</version>
</dependency>
<!-- https://mvnrepository.com/artifact/com.google.apis/google-api-services-plus -->
<dependency>
    <groupId>com.google.apis</groupId>
    <artifactId>google-api-services-plus</artifactId>
    <version>v1-rev456-1.22.0</version>
</dependency>
<!-- https://mvnrepository.com/artifact/com.google.http-client/google-http-client-appengine -->
<dependency>
    <groupId>com.google.http-client</groupId>
    <artifactId>google-http-client-appengine</artifactId>
    <version>1.22.0</version>
</dependency>
<!-- https://mvnrepository.com/artifact/commons-fileupload/commons-fileupload -->
 <dependency>
    <groupId>commons-fileupload</groupId>
    <artifactId>commons-fileupload</artifactId>
    <version>1.3.1</version>
</dependency> 
<!-- https://mvnrepository.com/artifact/commons-io/commons-io -->
 <dependency>
    <groupId>commons-io</groupId>
    <artifactId>commons-io</artifactId>
    <version>2.4</version>
</dependency> 
<!-- https://mvnrepository.com/artifact/org.jsoup/jsoup -->
 <dependency>
    <groupId>org.jsoup</groupId>
    <artifactId>jsoup</artifactId>
    <version>1.10.1</version>
</dependency> 
<!-- https://mvnrepository.com/artifact/mysql/mysql-connector-java -->
 <dependency>
    <groupId>mysql</groupId>
    <artifactId>mysql-connector-java</artifactId>
    <version>5.1.37</version>
</dependency> 

<!-- https://mvnrepository.com/artifact/com.fasterxml.jackson.core/jackson-core -->
<dependency>
    <groupId>com.fasterxml.jackson.core</groupId>
    <artifactId>jackson-core</artifactId>
    <version>2.9.5</version>
</dependency>
<dependency>
  <groupId>com.google.api-client</groupId>
  <artifactId>google-api-client-appengine</artifactId>
  <version>1.21.0</version>
</dependency>
<dependency>
  <groupId>com.google.api-client</groupId>
  <artifactId>google-api-client-servlet</artifactId>
  <version>1.21.0</version>
</dependency>
  </dependencies>

</project>

编辑、堆栈跟踪：

com.google.apphosting.runtime.jetty9.JettyLogger warn: Error for /exportiati (JettyLogger.java:29)
java.lang.NoSuchMethodError: nl.icco.program.Program.exportIATI(Ljavax/xml/stream/XMLStreamWriter;Ljava/lang/String;Lnl/icco/indicator/IndicatorDefList;Lnl/icco/indicator/ResultDefList;Lnl/icco/company/Company;Lnl/icco/company/ExportChannelsPref;Lnl/icco/database/Database;)V
    at nl.icco.exporter.IATIexporter.write(IATIexporter.java:214)
    at nl.icco.exporter.IATIexporter.<init>(IATIexporter.java:121)
    at nl.icco.cronjobs.ExportIATI.doPost(ExportIATI.java:40)
    at nl.icco.cronjobs.ExportIATI.doGet(ExportIATI.java:16)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:687)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)
    at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:848)
    at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1772)
    at com.google.apphosting.utils.servlet.JdbcMySqlConnectionCleanupFilter.doFilter(JdbcMySqlConnectionCleanupFilter.java:60)
    at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1759)
    at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:582)
    at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143)
    at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:524)
    at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:226)
    at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143)
    at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:134)
    at com.google.apphosting.runtime.jetty9.ParseBlobUploadHandler.handle(ParseBlobUploadHandler.java:119)
    at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1182)
    at com.google.apphosting.runtime.jetty9.AppEngineWebAppContext.doHandle(AppEngineWebAppContext.java:171)
    at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:512)
    at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:185)
    at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1112)
    at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)
    at com.google.apphosting.runtime.jetty9.AppVersionHandlerMap.handle(AppVersionHandlerMap.java:296)
    at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:134)
    at org.eclipse.jetty.server.Server.handle(Server.java:539)
    at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:333)
    at com.google.apphosting.runtime.jetty9.RpcConnection.handle(RpcConnection.java:202)
    at com.google.apphosting.runtime.jetty9.RpcConnector.serviceRequest(RpcConnector.java:81)
    at com.google.apphosting.runtime.jetty9.JettyServletEngineAdapter.serviceRequest(JettyServletEngineAdapter.java:123)
    at com.google.apphosting.runtime.JavaRuntime$RequestRunnable.dispatchServletRequest(JavaRuntime.java:699)
    at com.google.apphosting.runtime.JavaRuntime$RequestRunnable.dispatchRequest(JavaRuntime.java:661)
    at com.google.apphosting.runtime.JavaRuntime$RequestRunnable.run(JavaRuntime.java:631)
    at com.google.apphosting.runtime.JavaRuntime$NullSandboxRequestRunnable.run(JavaRuntime.java:825)
    at com.google.apphosting.runtime.ThreadGroupPool$PoolEntry.run(ThreadGroupPool.java:273)
    at java.lang.Thread.run(Thread.java:745)

Answer 1

我怀疑此错误可能是由于 mvn appengine:deploy 命令不会上传其他配置文件，如 cron.yaml 或 dispatch.yaml（与云工具插件及其部署屏幕上的"包括可选的 App Engine 配置文件"复选框不同）。

您可能希望发出其他命令，例如 mvn appengine:deployDispatch 、mvn appengine:deployCron，甚至使用此处提到的appengine:deployAll目标。如果您希望一次发出所有这些命令，也请查看此 SO 答案。