无法将 Maven 项目转换为 App Engine 标准项目

Question

我想将 Maven 项目转换为 App Engine 项目以进行部署。但它给了我以下屏幕截图所示的错误：-

以下是我项目属性的截图：-

除此之外，当我运行我在本地主机上的项目时，出现以下错误：-

HTTP ERROR 503 Problem accessing /. Reason:
Service Unavailable

所以，下面是我的 pom.xml 的代码，我想这个文件中缺少一些东西：-

<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>LiveInBliss</groupId>
  <artifactId>LiveInBliss</artifactId>
  <version>0.0.1-SNAPSHOT</version>
  <packaging>war</packaging>
  <build>
  <!-- [START resources] -->
    <resources>
      <resource>
        <directory>src/main/resources</directory>
        <filtering>true</filtering>
      </resource>
    </resources>
    <!-- [END resources] -->

    <plugins>


   <plugin>
    <groupId>org.eclipse.jetty</groupId>
    <artifactId>jetty-maven-plugin</artifactId>
    <version>9.4.0.M0</version>
</plugin> 



    <plugin>
   <groupId>com.google.appengine</groupId>
   <artifactId>appengine-maven-plugin</artifactId>
   <version>1.9.67</version>
    </plugin>




      <plugin>
        <artifactId>maven-war-plugin</artifactId>
        <version>3.2.1</version>
      </plugin>
    </plugins>
  </build>
  <dependencies>
  <dependency>
    <groupId>javax.servlet</groupId>
    <artifactId>javax.servlet-api</artifactId>
    <version>3.1.0</version>
    <type>jar</type>
    <scope>provided</scope>
  </dependency>
  <!-- https://mvnrepository.com/artifact/javax.mail/mail -->
<dependency>
    <groupId>javax.mail</groupId>
    <artifactId>mail</artifactId>
    <version>1.4</version>
</dependency>

  <dependency>
  <groupId>com.google.cloud</groupId>
  <artifactId>google-cloud</artifactId>
  <version>0.8.0</version>
</dependency>
<dependency>
  <groupId>com.google.cloud</groupId>
  <artifactId>google-cloud-storage</artifactId>
  <version>1.34.0</version>
</dependency>
<dependency>                        <!-- http://dev.mysql.com/doc/connector-j/en/ -->
  <groupId>mysql</groupId>
  <artifactId>mysql-connector-java</artifactId>
  <version>6.0.5</version>
</dependency>
<dependency>
  <groupId>com.google.cloud.sql</groupId>
  <artifactId>mysql-socket-factory-connector-j-6</artifactId>
  <version>1.0.10</version>
</dependency>
</dependencies>
<properties>
<maven.compiler.source>1.8</maven.compiler.source>
  <maven.compiler.target>1.8</maven.compiler.target>
<!--
    INSTANCE_CONNECTION_NAME from Cloud Console > SQL > Instance Details > Properties
    or `gcloud sql instances describe <instance> | grep connectionName`
-->
    <INSTANCE_CONNECTION_NAME>live-in-bliss:northamerica-northeast1:liveinbliss-99</INSTANCE_CONNECTION_NAME>
    <user>root</user>
    <password>my_password</password>
    <database>my_db_name</database>
    <sqlURL>jdbc:mysql://google/$db_name?cloudSqlInstance=$live-in-bliss:northamerica-northeast1:liveinbliss-99&amp;socketFactory=com.google.cloud.sql.mysql.SocketFactory&amp;user=$root&amp;password=$my_password&amp;useSSL=false</sqlURL>
  </properties>

</project>

Answer 1

我不熟悉 App Engine 标准项目，但您的屏幕截图看起来像是配置了 Dynamic Web Module 2.3。根据 No compatible AppEngine Standard facet found 上报告的问题，使用 App Engine 需要 Dynamic Web Module 2.5。

根据同一来源，您可能还需要检查 org.eclipse.wst.common.project.facet.core.xml 文件中的 "jst.web" 设置并确保它与您选择的值一致。

无法将 Maven 项目转换为 App Engine 标准项目

Cannot convert Maven project to App Engine standard project

java

eclipse

google-app-engine

pom.xml

maven