无法使用 spring cloud gcp starter 将 Spring Boot 与 Cloud SQL 连接答案

【问题标题】：Cannot connect Spring Boot with Cloud SQL using spring cloud gcp starter无法使用 spring cloud gcp starter 将 Spring Boot 与 Cloud SQL 连接
【发布时间】：2018-12-15 21:44:56
【问题描述】：

Spring Boot 新手试图将我的应用托管在 GCP AppEngine Flexible with Cloud SQL (mysql)，第二代。

使用我从这里获得的 Spring Cloud GCP 启动器： https://github.com/spring-cloud/spring-cloud-gcp/tree/master/spring-cloud-gcp-samples/spring-cloud-gcp-sql-sample，我正在尝试让我的本地 Spring Boot 应用程序连接到 Cloud SQL。尝试在本地 Tomcat 上运行 SQLApplication 时，我得到：

2018-07-28 20:57:35.663  INFO 66641 --- [           main] com.zaxxer.hikari.HikariDataSource       : HikariPool-1 - Starting...
2018-07-28 20:57:36.730 ERROR 66641 --- [           main] com.zaxxer.hikari.pool.HikariPool        : HikariPool-1 - Exception during pool initialization.

com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: Could not create socket factory 'com.google.cloud.sql.mysql.SocketFactory' due to underlying exception: 
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) ~[na:1.8.0_171]
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) ~[na:1.8.0_171]
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) ~[na:1.8.0_171]
    at java.lang.reflect.Constructor.newInstance(Constructor.java:423) ~[na:1.8.0_171]
    at com.mysql.jdbc.Util.handleNewInstance(Util.java:411) ~[mysql-connector-java-5.1.26-bin.jar:na]
    at com.mysql.jdbc.Util.getInstance(Util.java:386) ~[mysql-connector-java-5.1.26-bin.jar:na]
    at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1015) ~[mysql-connector-java-5.1.26-bin.jar:na]
    at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:989) ~[mysql-connector-java-5.1.26-bin.jar:na]
    at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:975) ~[mysql-connector-java-5.1.26-bin.jar:na]
    at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:920) ~[mysql-connector-java-5.1.26-bin.jar:na]
    at com.mysql.jdbc.MysqlIO.createSocketFactory(MysqlIO.java:3411) ~[mysql-connector-java-5.1.26-bin.jar:na]
    at com.mysql.jdbc.MysqlIO.<init>(MysqlIO.java:303) ~[mysql-connector-java-5.1.26-bin.jar:na]
    at com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2482) ~[mysql-connector-java-5.1.26-bin.jar:na]
    at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2519) ~[mysql-connector-java-5.1.26-bin.jar:na]
    at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2304) ~[mysql-connector-java-5.1.26-bin.jar:na]
    at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:834) ~[mysql-connector-java-5.1.26-bin.jar:na]
    at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:47) ~[mysql-connector-java-5.1.26-bin.jar:na]
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) ~[na:1.8.0_171]
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) ~[na:1.8.0_171]
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) ~[na:1.8.0_171]
    at java.lang.reflect.Constructor.newInstance(Constructor.java:423) ~[na:1.8.0_171]
    at com.mysql.jdbc.Util.handleNewInstance(Util.java:411) ~[mysql-connector-java-5.1.26-bin.jar:na]
    at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:416) ~[mysql-connector-java-5.1.26-bin.jar:na]
    at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:346) ~[mysql-connector-java-5.1.26-bin.jar:na]
    at com.zaxxer.hikari.util.DriverDataSource.getConnection(DriverDataSource.java:117) ~[HikariCP-2.7.9.jar:na]
    at com.zaxxer.hikari.util.DriverDataSource.getConnection(DriverDataSource.java:123) ~[HikariCP-2.7.9.jar:na]
    at com.zaxxer.hikari.pool.PoolBase.newConnection(PoolBase.java:365) ~[HikariCP-2.7.9.jar:na]
    at com.zaxxer.hikari.pool.PoolBase.newPoolEntry(PoolBase.java:194) ~[HikariCP-2.7.9.jar:na]
    at com.zaxxer.hikari.pool.HikariPool.createPoolEntry(HikariPool.java:460) [HikariCP-2.7.9.jar:na]
    at com.zaxxer.hikari.pool.HikariPool.checkFailFast(HikariPool.java:534) [HikariCP-2.7.9.jar:na]
    at com.zaxxer.hikari.pool.HikariPool.<init>(HikariPool.java:115) [HikariCP-2.7.9.jar:na]
    at com.zaxxer.hikari.HikariDataSource.getConnection(HikariDataSource.java:112) [HikariCP-2.7.9.jar:na]
    at org.springframework.jdbc.datasource.DataSourceUtils.fetchConnection(DataSourceUtils.java:151) [spring-jdbc-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    at org.springframework.jdbc.datasource.DataSourceUtils.doGetConnection(DataSourceUtils.java:115) [spring-jdbc-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    at org.springframework.jdbc.datasource.DataSourceUtils.getConnection(DataSourceUtils.java:78) [spring-jdbc-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    at org.springframework.jdbc.datasource.init.DatabasePopulatorUtils.execute(DatabasePopulatorUtils.java:46) [spring-jdbc-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    at org.springframework.boot.autoconfigure.jdbc.DataSourceInitializer.runScripts(DataSourceInitializer.java:210) [spring-boot-autoconfigure-2.0.3.RELEASE.jar:2.0.3.RELEASE]
    at org.springframework.boot.autoconfigure.jdbc.DataSourceInitializer.createSchema(DataSourceInitializer.java:104) [spring-boot-autoconfigure-2.0.3.RELEASE.jar:2.0.3.RELEASE]
    at org.springframework.boot.autoconfigure.jdbc.DataSourceInitializerInvoker.afterPropertiesSet(DataSourceInitializerInvoker.java:64) [spring-boot-autoconfigure-2.0.3.RELEASE.jar:2.0.3.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1767) [spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1704) [spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:581) [spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:503) [spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:317) [spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) ~[spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:315) [spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:224) [spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveNamedBean(DefaultListableBeanFactory.java:1015) ~[spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBean(DefaultListableBeanFactory.java:339) ~[spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBean(DefaultListableBeanFactory.java:334) ~[spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    at org.springframework.boot.autoconfigure.jdbc.DataSourceInitializerPostProcessor.postProcessAfterInitialization(DataSourceInitializerPostProcessor.java:55) ~[spring-boot-autoconfigure-2.0.3.RELEASE.jar:2.0.3.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyBeanPostProcessorsAfterInitialization(AbstractAutowireCapableBeanFactory.java:439) [spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1712) [spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:581) [spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:503) [spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:317) [spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) ~[spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:315) [spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199) [spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:251) ~[spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1138) ~[spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1065) ~[spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    at org.springframework.beans.factory.support.ConstructorResolver.resolveAutowiredArgument(ConstructorResolver.java:818) ~[spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:724) ~[spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    at org.springframework.beans.factory.support.ConstructorResolver.autowireConstructor(ConstructorResolver.java:197) ~[spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireConstructor(AbstractAutowireCapableBeanFactory.java:1276) [spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1133) [spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:543) [spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:503) [spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:317) [spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) ~[spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:315) [spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199) [spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:372) ~[spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1256) [spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1105) [spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:543) [spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:503) [spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:317) [spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) ~[spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:315) [spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199) [spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:251) ~[spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1138) ~[spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1065) ~[spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    at org.springframework.beans.factory.support.ConstructorResolver.resolveAutowiredArgument(ConstructorResolver.java:818) ~[spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:724) ~[spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    at org.springframework.beans.factory.support.ConstructorResolver.autowireConstructor(ConstructorResolver.java:197) ~[spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireConstructor(AbstractAutowireCapableBeanFactory.java:1276) [spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1133) [spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:543) [spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:503) [spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:317) [spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) ~[spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:315) [spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199) [spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:760) ~[spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:869) ~[spring-context-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:550) ~[spring-context-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:140) ~[spring-boot-2.0.3.RELEASE.jar:2.0.3.RELEASE]
    at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:759) ~[spring-boot-2.0.3.RELEASE.jar:2.0.3.RELEASE]
    at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:395) ~[spring-boot-2.0.3.RELEASE.jar:2.0.3.RELEASE]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:327) ~[spring-boot-2.0.3.RELEASE.jar:2.0.3.RELEASE]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1255) ~[spring-boot-2.0.3.RELEASE.jar:2.0.3.RELEASE]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1243) ~[spring-boot-2.0.3.RELEASE.jar:2.0.3.RELEASE]
    at com.example.SqlApplication.main(SqlApplication.java:29) ~[classes/:na]
Caused by: java.lang.ClassNotFoundException: com.google.cloud.sql.mysql.SocketFactory
    at java.net.URLClassLoader.findClass(URLClassLoader.java:381) ~[na:1.8.0_171]
    at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[na:1.8.0_171]
    at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[na:1.8.0_171]
    at java.lang.Class.forName0(Native Method) ~[na:1.8.0_171]
    at java.lang.Class.forName(Class.java:264) ~[na:1.8.0_171]
    at com.mysql.jdbc.MysqlIO.createSocketFactory(MysqlIO.java:3408) ~[mysql-connector-java-5.1.26-bin.jar:na]
    ... 95 common frames omitted

我对这个项目所做的唯一更改是 application.properties。我也使用 gcloud 进行了身份验证。

这是我的 application.properties，不起作用：

spring.cloud.gcp.sql.database-name=sqldemo
spring.cloud.gcp.sql.instance-connection-name=Project:Region:Instance
spring.datasource.continue-on-error=true
spring.datasource.initialization-mode=always
spring.datasource.username=myuser
spring.datasource.password=mypass

我试过直接在pom.xml中添加mysql socket factory，但是没有成功：

<dependency>
    <groupId>com.google.cloud.sql</groupId>
    <artifactId>mysql-socket-factory</artifactId>
    <version>1.0.10</version>
</dependency>

我已确保我的 SQL API 已启用。谢谢！

【问题讨论】：

如果您尝试运行此命令会怎样。 $ mvn clean jetty:run -DINSTANCE_CONNECTION_NAME=instanceConnectionName -Duser=root -Dpassword=myPassword -Ddatabase=myDatabase 我知道您已经尝试在没有 - 之后的部分的情况下运行它。
请始终将项目 ID 写为 [MY_PROJECT_ID]。这是敏感的私人数据
另外请分享您的pom.xml
pom.xml 在我引用的代码中：github.com/spring-cloud/spring-cloud-gcp/blob/master/…
我从云计算实例运行它，我没有任何错误。您能否提供完整的跟踪信息以便我们了解更多上下文？

标签： google-app-engine spring-boot google-cloud-platform google-cloud-sql

【解决方案1】：

我在启动 spring-cloud-gcp-sql-sample 时也遇到了问题，我设法使用以下 pom.xml 运行它：

<?xml version="1.0" encoding="UTF-8"?>
<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">
  <parent>
        <artifactId>spring-cloud-gcp-samples</artifactId>
        <groupId>org.springframework.cloud</groupId>
        <version>1.1.0.BUILD-SNAPSHOT</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>
    <artifactId>spring-cloud-gcp-sql-sample</artifactId>
    <name>Spring Cloud GCP SQL MySQL Starter Code Sample</name>
  <packaging>jar</packaging>
  <properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
    <java.version>1.8</java.version>
    <maven.compiler.source>1.8</maven.compiler.source>
    <maven.compiler.target>1.8</maven.compiler.target>
  </properties>

    <dependencies>
    <dependency>
      <groupId>org.springframework.cloud</groupId>
      <artifactId>spring-cloud-gcp-starter-sql-mysql</artifactId>
    </dependency>
    <dependency>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-starter-data-jpa</artifactId>
    </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
    </dependencies>

  <repositories>
    <!-- Use Spring Milestone Repository -->
    <repository>
      <id>repository.spring.milestone</id>
      <name>Spring Milestones Repository</name>
      <url>http://repo.spring.io/milestone</url>
    </repository>
  </repositories>
  <dependencyManagement>
    <dependencies>
      <dependency>
        <groupId>org.springframework.cloud</groupId>
        <artifactId>spring-cloud-gcp-dependencies</artifactId>
        <version>1.0.0.RC1</version>
        <type>pom</type>
        <scope>import</scope>
      </dependency>
    </dependencies>
  </dependencyManagement>

  <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>

    </plugins>
  </build>

</project>

和application.properties：

spring.cloud.gcp.sql.instance-connection-name=[your-server-name]
spring.cloud.gcp.sql.database-name=[your-database-name]

# So app starts despite "table already exists" errors.
spring.datasource.continue-on-error=true

# Enforces database initialization
spring.datasource.initialization-mode=always

# Leave empty for root, uncomment and fill out if you specified a user
spring.datasource.username=root

## Uncomment if root password is specified
spring.datasource.password=root

server.port = 80

我已使用 gcloud 进行了身份验证。我正在使用 spring-boot:run 运行此示例

【讨论】：

【解决方案2】：

在配置spring之前，必须启用cloud sql admin api

在具有角色的凭据中创建 json：

Cloud SQL > Cloud SQL Client
Cloud SQL > Cloud SQL Editor
Cloud SQL > Cloud SQL Admin

kubectl create secret generic cloudsql-instance-credentials --from-file=credentials.json=file_name.json

kubectl create secret generic cloudsql-db-credentials --from-literal=username=ethan --from-literal=password=12345678 --from-literal=dbname=clash_royale --from-literal=connectname=projectid:region:instance-name

双向连接gcloud sql，完美运行

云 SQL 代理

配置文件deployment.yaml

apiVersion: extensions/v1beta1
kind: Deployment
metadata:
  name: {{ template "fullname" . }}
  labels:
    draft: {{ default "draft-app" .Values.draft }}
    chart: "{{ .Chart.Name }}-{{ .Chart.Version | replace "+" "_" }}"
spec:
  replicas: {{ .Values.replicaCount }}
  template:
    metadata:
      labels:
        draft: {{ default "draft-app" .Values.draft }}
        app: {{ template "fullname" . }}
{{- if .Values.podAnnotations }}
      annotations:
{{ toYaml .Values.podAnnotations | indent 8 }}
{{- end }}
    spec:
      containers:
      - name: {{ .Chart.Name }}
        image: "{{ .Values.image.repository }}:{{ .Values.image.tag }}"
        imagePullPolicy: {{ .Values.image.pullPolicy }}
        env:
          - name: DB_HOST
            value: 127.0.0.1:3306
          # These secrets are required to start the pod.
          # [START cloudsql_secrets]
          - name: DB_USER
            valueFrom:
              secretKeyRef:
                name: cloudsql-db-credentials
                key: username
          - name: DB_PASSWORD
            valueFrom:
              secretKeyRef:
                name: cloudsql-db-credentials
                key: password
          # [END cloudsql_secrets]
      # Change <INSTANCE_CONNECTION_NAME> here to include your GCP
      # project, the region of your Cloud SQL instance and the name
      # of your Cloud SQL instance. The format is
      # $PROJECT:$REGION:$INSTANCE
      # [START proxy_container]
      - name: cloudsql-proxy
        image: gcr.io/cloudsql-docker/gce-proxy:1.11
        command: ["/cloud_sql_proxy",
                  "-instances=PROJECT:REGION:INSTANCE=tcp:3306",
                  "-credential_file=/secrets/cloudsql/credentials.json"]
        # [START cloudsql_security_context]
        securityContext:
          runAsUser: 2  # non-root user
          allowPrivilegeEscalation: false
        # [END cloudsql_security_context]
        volumeMounts:
          - name: cloudsql-instance-credentials
            mountPath: /secrets/cloudsql
            readOnly: true
      # [END proxy_container]
        ports:
        - containerPort: {{ .Values.service.internalPort }}
        livenessProbe:
          httpGet:
            path: {{ .Values.probePath }}
            port: {{ .Values.service.internalPort }}
          initialDelaySeconds: {{ .Values.livenessProbe.initialDelaySeconds }}
          periodSeconds: {{ .Values.livenessProbe.periodSeconds }}
          successThreshold: {{ .Values.livenessProbe.successThreshold }}
          timeoutSeconds: {{ .Values.livenessProbe.timeoutSeconds }}
        readinessProbe:
          httpGet:
            path: {{ .Values.probePath }}
            port: {{ .Values.service.internalPort }}
          periodSeconds: {{ .Values.readinessProbe.periodSeconds }}
          successThreshold: {{ .Values.readinessProbe.successThreshold }}
          timeoutSeconds: {{ .Values.readinessProbe.timeoutSeconds }}
        resources:
{{ toYaml .Values.resources | indent 12 }}
      terminationGracePeriodSeconds: {{ .Values.terminationGracePeriodSeconds }}
      serviceAccountName: {{ .Values.service.name }}
      # [START volumes]
      volumes:
        - name: cloudsql-instance-credentials
          secret:
            secretName: cloudsql-instance-credentials
      # [END volumes]

pom.xml

    <!-- DATABASE-->
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-jpa</artifactId>
        </dependency>

application.properties

#database=mysql
spring.datasource.driverClassName=com.mysql.jdbc.Driver
spring.datasource.url = jdbc:mysql://${DB_HOST}/{$DB_NAME}?useSSL=false
spring.datasource.username=${DB_USER}
spring.datasource.password=${DB_PASSWORD}

spring.jpa.properties.hibernate.dialect = org.hibernate.dialect.MySQL5InnoDBDialect
spring.jpa.hibernate.ddl-auto = update

没有代理

deployment.yaml

apiVersion: extensions/v1beta1
kind: Deployment
metadata:
  name: {{ template "fullname" . }}
  labels:
    draft: {{ default "draft-app" .Values.draft }}
    chart: "{{ .Chart.Name }}-{{ .Chart.Version | replace "+" "_" }}"
spec:
  replicas: {{ .Values.replicaCount }}
  template:
    metadata:
      labels:
        draft: {{ default "draft-app" .Values.draft }}
        app: {{ template "fullname" . }}
{{- if .Values.podAnnotations }}
      annotations:
{{ toYaml .Values.podAnnotations | indent 8 }}
{{- end }}
    spec:
      containers:
      - name: {{ .Chart.Name }}
        image: "{{ .Values.image.repository }}:{{ .Values.image.tag }}"
        imagePullPolicy: {{ .Values.image.pullPolicy }}
        volumeMounts:
          - name: cloudsql-instance-credentials
            mountPath: /secrets/cloudsql
            readOnly: true
        env:
          - name: DB_HOST
            value: 127.0.0.1:3306
          # These secrets are required to start the pod.
          # [START cloudsql_secrets]
          - name: DB_USER
            valueFrom:
              secretKeyRef:
                name: cloudsql-db-credentials
                key: username
          - name: DB_PASSWORD
            valueFrom:
              secretKeyRef:
                name: cloudsql-db-credentials
                key: password
          - name: DB_NAME
            valueFrom:
              secretKeyRef:
                name: cloudsql-db-credentials
                key: dbname
          - name: CONNECT_NAME
            valueFrom:
              secretKeyRef:
                name: cloudsql-db-credentials
                key: connectname
          # [END cloudsql_secrets]
      # Change <INSTANCE_CONNECTION_NAME> here to include your GCP
      # project, the region of your Cloud SQL instance and the name
      # of your Cloud SQL instance. The format is
      # $PROJECT:$REGION:$INSTANCE
      # [START proxy_container]
#      - name: cloudsql-proxy
#        image: gcr.io/cloudsql-docker/gce-proxy:1.11
#        command: ["/cloud_sql_proxy",
#                  "-instances=",
#                  "-credential_file=/secrets/cloudsql/credentials.json"]
#        # [START cloudsql_security_context]
#        securityContext:
#          runAsUser: 2  # non-root user
#          allowPrivilegeEscalation: false
#        # [END cloudsql_security_context]
#        volumeMounts:
#          - name: cloudsql-instance-credentials
#            mountPath: /secrets/cloudsql
#            readOnly: true
      # [END proxy_container]
        ports:
        - containerPort: {{ .Values.service.internalPort }}
        livenessProbe:
          httpGet:
            path: {{ .Values.probePath }}
            port: {{ .Values.service.internalPort }}
          initialDelaySeconds: {{ .Values.livenessProbe.initialDelaySeconds }}
          periodSeconds: {{ .Values.livenessProbe.periodSeconds }}
          successThreshold: {{ .Values.livenessProbe.successThreshold }}
          timeoutSeconds: {{ .Values.livenessProbe.timeoutSeconds }}
        readinessProbe:
          httpGet:
            path: {{ .Values.probePath }}
            port: {{ .Values.service.internalPort }}
          periodSeconds: {{ .Values.readinessProbe.periodSeconds }}
          successThreshold: {{ .Values.readinessProbe.successThreshold }}
          timeoutSeconds: {{ .Values.readinessProbe.timeoutSeconds }}
        resources:
{{ toYaml .Values.resources | indent 12 }}
      terminationGracePeriodSeconds: {{ .Values.terminationGracePeriodSeconds }}
      serviceAccountName: {{ .Values.service.name }}
      # [START volumes]
      volumes:
        - name: cloudsql-instance-credentials
          secret:
            secretName: cloudsql-instance-credentials
      # [END volumes]

pom.xml

		<!-- DATABASE-->

		<!--<dependency>-->
			<!--<groupId>mysql</groupId>-->
			<!--<artifactId>mysql-connector-java</artifactId>-->
		<!--</dependency>-->

		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-data-jpa</artifactId>
		</dependency>

		<dependency>
			<groupId>org.springframework.cloud</groupId>
			<artifactId>spring-cloud-gcp-starter-sql-mysql</artifactId>
			<version>1.0.0.RELEASE</version>
		</dependency>

application.properties

spring.cloud.gcp.sql.instance-connection-name=${CONNECT_NAME}
spring.cloud.gcp.sql.database-name=${DB_NAME}
spring.datasource.username=${DB_USER}
spring.datasource.password=${DB_PASSWORD}
spring.cloud.gcp.credentials.location=file:/secrets/cloudsql/credentials.json

# So app starts despite "table already exists" errors.
spring.datasource.continue-on-error=true

# Enforces database initialization
spring.datasource.initialization-mode=always

spring.jpa.database-platform=org.hibernate.dialect.MySQL55Dialect

希望对你有帮助。

【讨论】：

你把你的 secrets.yml 放在资源下面了吗？和 deployment.yml 一样吗？
是的，我把它放在了secret.yaml中
@EthanNguyen 感谢您的描述。我按照您的示例（使用代理）但收到错误Warning FailedMount 14s (x7 over 45s) kubelet, gke-gara-cluster-default-pool-673744a2-n377 MountVolume.SetUp failed for volume "cloudsql-instance-credentials" : secrets "cloudsql-instance-credentials" not found。我刚刚创建了 cloudsql-db-credentials。我还必须为卷创建具有相同凭据的文件？

【解决方案3】：

我认为你应该设置一个代理

见https://cloud.google.com/sql/docs/mysql/sql-proxy

【讨论】：

【解决方案4】：

您无需设置 Cloud SQL 代理。正如您在documentation 中看到的那样：

请注意，您无需使用代理或配置 SSL 即可从 App Engine 标准或柔性环境连接到 Cloud SQL。这些连接自动使用“内置”代理实现。

使用 App Engine Java，Cloud SQL Socket Factory 在幕后建立 jdbc 连接，无需任何 IP 地址，只需实例名称。

似乎找不到此库或创建新实例时出现问题。

请检查this gist 与 pom.xml 和 application.properties。

【讨论】：