java - 部署后无法访问 Google App Engine 中的 Spring Boot 应用程序

标签 java spring google-app-engine spring-boot java-8

我是 Google App Engine 的新手。

我一直在尝试将练习部署到 Google Cloud。

如果您想查看详细配置，这是该项目:

Exercise Project to Deploy

该项目是使用 Java 8 和 Spring Boot 制作的。

这是 pom.xml

<parent>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>1.5.9.RELEASE</version>
    <relativePath/>
</parent>

<properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <java.version>1.8</java.version>
    <maven.compiler.source>1.8</maven.compiler.source>
    <maven.compiler.target>1.8</maven.compiler.target>
    <!-- dependency versions -->
    <com.google.guava.guava.version>21.0</com.google.guava.guava.version>
    <io.springfox.springfox-swagger2>2.3.1</io.springfox.springfox-swagger2>
    <io.springfox.springfox-swagger-ui>2.3.1</io.springfox.springfox-swagger-ui>
    <commons-lang.version>3.0</commons-lang.version>
    <junit.version>4.12</junit.version>
    <jsonpath.version>2.2.0</jsonpath.version>
</properties>

<dependencies>

    <!-- For default Spring Boot utilities -->
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter</artifactId>
        <exclusions>
            <exclusion>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-tomcat</artifactId>
            </exclusion>
        </exclusions>
    </dependency>

    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-devtools</artifactId>
    </dependency>

    <!-- For testing possibility -->
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-test</artifactId>
        <scope>test</scope>
    </dependency>

    <!-- For all mvc and web functions -->
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-web</artifactId>
    </dependency>

    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-web</artifactId>
    </dependency>

    <!-- Default persistence functions -->
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-data-jpa</artifactId>
    </dependency>

    <dependency>
        <groupId>org.hibernate</groupId>
        <artifactId>hibernate-java8</artifactId>
        <version>5.0.5.Final</version>
    </dependency>

    <!-- In-Memory DB -->
    <dependency>
        <groupId>com.h2database</groupId>
        <artifactId>h2</artifactId>
        <scope>runtime</scope>
    </dependency>

    <!-- Java Utilities from google -->
    <dependency>
        <groupId>com.google.guava</groupId>
        <artifactId>guava</artifactId>
        <version>${com.google.guava.guava.version}</version>
    </dependency>

    <!-- Include swagger for API description -->
    <dependency>
        <groupId>io.springfox</groupId>
        <artifactId>springfox-swagger2</artifactId>
        <version>${io.springfox.springfox-swagger2}</version>
    </dependency>

    <!-- Include swagger for API description UI -->
    <dependency>
        <groupId>io.springfox</groupId>
        <artifactId>springfox-swagger-ui</artifactId>
        <version>${io.springfox.springfox-swagger-ui}</version>
    </dependency>

    <!-- Commons-lang3 -->
    <dependency>
        <groupId>org.apache.commons</groupId>
        <artifactId>commons-lang3</artifactId>
        <version>${commons-lang.version}</version>
    </dependency>

    <!-- Unit testing -->
    <dependency>
        <groupId>junit</groupId>
        <artifactId>junit</artifactId>
        <version>${junit.version}</version>
        <scope>test</scope>
    </dependency>

    <dependency>
        <groupId>com.jayway.jsonpath</groupId>
        <artifactId>json-path</artifactId>
        <version>${jsonpath.version}</version>
        <scope>test</scope>
    </dependency>

    <!-- Google cloud -->
    <dependency>
        <groupId>javax.servlet</groupId>
        <artifactId>javax.servlet-api</artifactId>
        <version>3.1.0</version>
        <scope>provided</scope>
    </dependency>

    <dependency>
        <groupId>org.slf4j</groupId>
        <artifactId>jul-to-slf4j</artifactId>
        <scope>provided</scope>
    </dependency>

    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-tomcat</artifactId>
        <scope>provided</scope>
    </dependency>

</dependencies>

<build>
    <plugins>
        <plugin>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-maven-plugin</artifactId>
            <version>1.5.7.RELEASE</version>
            <executions>
                <execution>
                    <goals>
                        <goal>repackage</goal>
                    </goals>
                </execution>
            </executions>
        </plugin>
        <plugin>
            <artifactId>maven-war-plugin</artifactId>
            <version>2.6</version>
            <configuration>
                <failOnMissingWebXml>false</failOnMissingWebXml>
            </configuration>
        </plugin>
        <plugin>
            <groupId>com.google.cloud.tools</groupId>
            <artifactId>appengine-maven-plugin</artifactId>
            <version>1.3.2</version>
        </plugin>
    </plugins>
</build>

这是app.yaml

runtime: java
env: flex

runtime_config:  # Optional
  jdk: openjdk8

handlers:
- url: /.*
  script: this field is required, but ignored

manual_scaling:
  instances: 1

这是 appengine-web.xml

<appengine-web-app xmlns="http://appengine.google.com/ns/1.0">
    <version>1</version>
    <threadsafe>true</threadsafe>
    <runtime>java8</runtime>
</appengine-web-app>

我没有提供 web.xml

我能够使用以下命令部署它:

mvn appengine:run

这是控制台输出。我似乎已经部署成功:

[INFO] GCLOUD: 2017-12-09 16:48:39.319:INFO::main: Logging initialized @501ms
[INFO] GCLOUD: 2017-12-09 16:48:39.867:INFO:oejs.Server:main: jetty-9.3.18.v20170406
[INFO] GCLOUD: 2017-12-09 16:48:45.673:INFO:oeja.AnnotationConfiguration:main: Scanning elapsed time=5286ms
[INFO] GCLOUD: Dec 09, 2017 7:48:45 PM com.google.appengine.tools.development.ApiProxyLocalImpl log
[INFO] GCLOUD: INFO: javax.servlet.ServletContext log: 1 Spring WebApplicationInitializers detected on classpath
[INFO] GCLOUD: 2017-12-09 16:48:46.541:INFO:oejsh.ContextHandler:main: Started c.g.a.t.d.j.DevAppEngineWebAppContext@7bd7d6d6{/,[file:///home/sebastiandagostino/mutant-api-exercise/target/mutant-exercise-1.0-SNAPS
HOT/, jar:file:///home/sebastiandagostino/mutant-api-exercise/target/mutant-exercise-1.0-SNAPSHOT/WEB-INF/lib/springfox-swagger-ui-2.3.1.jar!/META-INF/resources],AVAILABLE}{/home/sebastiandagostino/mutant-api-exer
cise/target/mutant-exercise-1.0-SNAPSHOT}
[INFO] GCLOUD: 2017-12-09 16:48:46.558:INFO:oejs.AbstractConnector:main: Started NetworkTrafficSelectChannelConnector@4722ef0c{HTTP/1.1,[http/1.1]}{localhost:8080}
[INFO] GCLOUD: 2017-12-09 16:48:46.561:INFO:oejs.Server:main: Started @7745ms
[INFO] GCLOUD: Dec 09, 2017 7:48:46 PM com.google.appengine.tools.development.AbstractModule startup
[INFO] GCLOUD: INFO: Module instance default is running at http://localhost:8080/
[INFO] GCLOUD: Dec 09, 2017 7:48:46 PM com.google.appengine.tools.development.AbstractModule startup
[INFO] GCLOUD: INFO: The admin console is running at http://localhost:8080/_ah/admin
[INFO] GCLOUD: Dec 09, 2017 4:48:46 PM com.google.appengine.tools.development.DevAppServerImpl doStart
[INFO] GCLOUD: INFO: Dev App Server is now running

当我尝试从预览访问该 URL 时，收到错误 403。

然后我运行:

gcloud app deploy

为了使 gcloud 命令正常工作，我将 app.yaml 复制到 target 文件夹。

我收到404 Not Found。我什至检查了日志:

Waiting for new log entries...
2017-12-09 20:09:52 default[20171209t170858]  "GET / HTTP/1.1" 404
2017-12-09 20:10:13 default[20171209t170858]  "GET / HTTP/1.1" 404
2017-12-09 20:10:15 default[20171209t170858]  "GET / HTTP/1.1" 404
2017-12-09 20:10:16 default[20171209t170858]  "GET / HTTP/1.1" 404
2017-12-09 20:10:16 default[20171209t170858]  "GET / HTTP/1.1" 404
2017-12-09 20:10:16 default[20171209t170858]  "GET / HTTP/1.1" 404
2017-12-09 20:10:16 default[20171209t170858]  "GET / HTTP/1.1" 404
2017-12-09 20:10:16 default[20171209t170858]  "GET / HTTP/1.1" 404
2017-12-09 20:10:17 default[20171209t170858]  "GET / HTTP/1.1" 404
2017-12-09 20:10:17 default[20171209t170858]  "GET / HTTP/1.1" 404
2017-12-09 20:10:17 default[20171209t170858]  "GET / HTTP/1.1" 404
2017-12-09 20:10:17 default[20171209t170858]  "GET / HTTP/1.1" 404
2017-12-09 20:10:19 default[20171209t170858]  "GET / HTTP/1.1" 404
2017-12-09 20:10:23 default[20171209t170858]  "GET /swagger HTTP/1.1" 404
2017-12-09 20:10:38 default[20171209t170858]  "GET / HTTP/1.1" 404
2017-12-09 20:10:44 default[20171209t170858]  "GET / HTTP/1.1" 404
2017-12-09 20:11:22 default[20171209t170858]  "GET / HTTP/1.1" 404

所以，应用程序编译并部署......但有些配置问题。我一直在寻找，但仍然没有线索。

Here指出我需要添加以下类:

public class ServletInitializer extends SpringBootServletInitializer {

    @Override
    protected SpringApplicationBuilder configure(SpringApplicationBuilder application) {
        return application.sources(MutantApplication.class);
    }

}

我这样做了，但是编译失败了:

[INFO] GCLOUD: 20:37:33.990 [main] DEBUG org.springframework.web.context.support.StandardServletEnvironment - Replacing PropertySource 'servletContextInitParams' with 'servletContextInitParams'
[INFO] GCLOUD: 20:37:34.056 [main] DEBUG org.springframework.boot.devtools.settings.DevToolsSettings - Included patterns for restart : []
[INFO] GCLOUD: 20:37:34.057 [main] DEBUG org.springframework.boot.devtools.settings.DevToolsSettings - Excluded patterns for restart : [/spring-boot-starter/target/classes/, /spring-boot-autoconfigure/target/classes/, /spring-boot-starter-[\w-]+/, /spring-boot/target/classes/, /spring-boot-actuator/target/classes/, /spring-boot-devtools/target/classes/]
[INFO] GCLOUD: 20:37:34.057 [main] DEBUG org.springframework.boot.devtools.restart.ChangeableUrls - Matching URLs for reloading : [file:/C:/Users/Sebastian/workspace/mutant-exercise/target/mutant-exercise-1.0-SNAPSHOT/WEB-INF/classes/]
[INFO] GCLOUD: java.lang.IllegalArgumentException: Unable to find the main class to restart
[INFO] GCLOUD:  at org.springframework.util.Assert.notNull(Assert.java:134)
[INFO] GCLOUD:  at org.springframework.boot.devtools.restart.Restarter.doStart(Restarter.java:285)
[INFO] GCLOUD:  at org.springframework.boot.devtools.restart.Restarter.start(Restarter.java:273)
[INFO] GCLOUD:  at org.springframework.boot.devtools.restart.Restarter$1.call(Restarter.java:174)
[INFO] GCLOUD:  at org.springframework.boot.devtools.restart.Restarter$1.call(Restarter.java:170)
[INFO] GCLOUD:  at org.springframework.boot.devtools.restart.Restarter$LeakSafeThread.run(Restarter.java:627)
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 21.114 s
[INFO] Finished at: 2017-12-09T17:37:34-03:00
[INFO] Final Memory: 39M/263M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal com.google.cloud.tools:appengine-maven-plugin:1.3.2:run (default-cli) on project mutant-exercise: Execution default-cli of goal com.google.cloud.tools:appengine-maven-plugin:1.3.2:run failed: Non zero exit: 1 -> [Help 1]

这很奇怪。它说找不到主类。

最佳答案

按照以下步骤按照 App Engine 标准进行部署:

克隆 git 存储库 https://github.com/sebastiandagostino/mutant-api-exercise.git

下载并安装适用于您的操作系统的 STS:https://spring.io/tools/sts/all

安装并运行后。单击“帮助 -> Eclipse Marketplace”并搜索 Google Cloud 插件。安装它。

安装 Google Cloud SDK(我在本例中使用了 Linux 指令)https://cloud.google.com/sdk/downloads#interactive

安装 app-engine-java 组件，请参阅 here然后here

安装组件并在 Google Cloud Platform 中进行身份验证后。在 Eclipse 中，单击“窗口 -> 首选项”，然后单击 Google Cloud Tools(这些是 Google Cloud 插件的首选项)。在 SDK 位置中选择安装 SDK 的文件夹。参见下图。

enter image description here

现在您已准备好使用 sts 导入项目:

选择“新..项目:Google App Engine 标准项目”。

enter image description here

单击“下一步”。取消选中“使用默认位置”，以便您可以选择包含您下载的 git 项目的文件夹。

导入后。右键单击项目名称并转到“配置 -> 转换为 maven 项目”

maven 解决所有导入后，再次右键单击项目名称并选择“部署到应用程序引擎标准”。将打开一个窗口，您必须在其中验证您的帐户并选择 Google Cloud 项目。

部署完成后，您应该能够转到 https://your-project-id.appspot.com/

关于java - 部署后无法访问 Google App Engine 中的 Spring Boot 应用程序，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/47732794/

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