Google Cloud SQL错误：未知主机名

Question

我正在尝试执行以下教程，以尝试在Google应用引擎上运行spring petclinic应用程序。 tuorial中描述的行动正在谷歌云壳上完成：

https://cloud.google.com/community/tutorials/run-spring-petclinic-on-app-engine-cloudsql

在第7步：

./mvnw -Drun.profiles=mysql spring-boot:run

但是我遇到了以下错误

错误摘要（原因）：

Caused by: java.net.UnknownHostException: google: No address associated with hostname
            at java.net.Inet6AddressImpl.lookupAllHostAddr(Native Method) ~[na:1.8.0_131]
            at java.net.InetAddress$2.lookupAllHostAddr(InetAddress.java:928) ~[na:1.8.0_131]
            at java.net.InetAddress.getAddressesFromNameService(InetAddress.java:1323) ~[na:1.8.0_131]
            at java.net.InetAddress.getAllByName0(InetAddress.java:1276) ~[na:1.8.0_131]
            at java.net.InetAddress.getAllByName(InetAddress.java:1192) ~[na:1.8.0_131]
            at java.net.InetAddress.getAllByName(InetAddress.java:1126) ~[na:1.8.0_131]
            at com.mysql.jdbc.StandardSocketFactory.connect(StandardSocketFactory.java:188) ~[mysql-connector-java-5.1.42.jar:5.1.42]
            at com.mysql.jdbc.MysqlIO.<init>(MysqlIO.java:300) ~[mysql-connector-java-5.1.42.jar:5.1.42]
            ... 85 common frames omitted

完整错误可在以下网址找到：

https://pastebin.com/cuYzVmsa

下面是我的pom.xml

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xmlns="http://maven.apache.org/POM/4.0.0"
  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>org.springframework.samples</groupId>
  <artifactId>spring-petclinic</artifactId>
  <version>1.5.1</version>

  <parent>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>1.5.4.RELEASE</version>
  </parent>
  <name>petclinic</name>

  <properties>

    <!-- Generic properties -->
    <java.version>1.8</java.version>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>

    <!-- Web dependencies -->
    <webjars-bootstrap.version>3.3.6</webjars-bootstrap.version>
    <webjars-jquery-ui.version>1.11.4</webjars-jquery-ui.version>
    <webjars-jquery.version>2.2.4</webjars-jquery.version>
    <wro4j.version>1.8.0</wro4j.version>
    <thymeleaf.version>3.0.6.RELEASE</thymeleaf.version>

    <cobertura.version>2.7</cobertura.version>

  </properties>

  <dependencies>
    <!-- https://mvnrepository.com/artifact/com.google.cloud.sql/mysql-socket-factory -->
<dependency>
    <groupId>com.google.cloud.sql</groupId>
    <artifactId>mysql-socket-factory</artifactId>
    <version>1.0.3</version>
</dependency>

    <dependency>
        <groupId>com.google.cloud.sql</groupId>
        <artifactId>mysql-socket-factory-connector-j-6</artifactId>
        <version>1.0.2</version>
    </dependency>
    <!-- Spring and Spring Boot dependencies -->
    <dependency>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-starter-actuator</artifactId>
    </dependency>
    <dependency>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-starter-cache</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>
    <dependency>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-starter-thymeleaf</artifactId>
      <exclusions>
        <exclusion>
                <groupId>nz.net.ultraq.thymeleaf</groupId>
                <artifactId>thymeleaf-layout-dialect</artifactId>
        </exclusion>
      </exclusions>
    </dependency>
    <dependency>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-starter-test</artifactId>
      <scope>test</scope>
    </dependency>

    <!-- Databases - Uses HSQL by default -->
    <dependency>
      <groupId>org.hsqldb</groupId>
      <artifactId>hsqldb</artifactId>
      <scope>runtime</scope>
    </dependency>
    <dependency>
      <groupId>mysql</groupId>
      <artifactId>mysql-connector-java</artifactId>
      <scope>runtime</scope>
    </dependency>

    <!-- caching -->
    <dependency>
      <groupId>javax.cache</groupId>
      <artifactId>cache-api</artifactId>
    </dependency>
    <dependency>
      <groupId>org.ehcache</groupId>
      <artifactId>ehcache</artifactId>
    </dependency>

    <!-- webjars -->
    <dependency>
      <groupId>org.webjars</groupId>
      <artifactId>webjars-locator</artifactId>
    </dependency>
    <dependency>
      <groupId>org.webjars</groupId>
      <artifactId>jquery</artifactId>
      <version>${webjars-jquery.version}</version>
    </dependency>
    <dependency>
      <groupId>org.webjars</groupId>
      <artifactId>jquery-ui</artifactId>
      <version>${webjars-jquery-ui.version}</version>
    </dependency>
    <dependency>
      <groupId>org.webjars</groupId>
      <artifactId>bootstrap</artifactId>
      <version>${webjars-bootstrap.version}</version>
    </dependency>
    <!-- end of webjars -->

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

  <build>
    <plugins>
      <plugin>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-maven-plugin</artifactId>
        <executions>
          <execution>
            <!-- Spring Boot Actuator displays build-related information
              if a META-INF/build-info.properties file is present -->
            <goals>
              <goal>build-info</goal>
            </goals>
            <configuration>
              <additionalProperties>
                <encoding.source>${project.build.sourceEncoding}</encoding.source>
                <encoding.reporting>${project.reporting.outputEncoding}</encoding.reporting>
                <java.source>${maven.compiler.source}</java.source>
                <java.target>${maven.compiler.target}</java.target>
              </additionalProperties>
            </configuration>
          </execution>
        </executions>
      </plugin>
      <plugin>
        <groupId>org.codehaus.mojo</groupId>
        <artifactId>cobertura-maven-plugin</artifactId>
        <version>${cobertura.version}</version>
        <configuration>
          <check />
        </configuration>
        <executions>
          <execution>
            <goals>
              <goal>clean</goal>
              <goal>check</goal>
            </goals>
          </execution>
        </executions>
      </plugin>

      <!-- Spring Boot Actuator displays build-related information if a git.properties
        file is present at the classpath -->
      <plugin>
        <groupId>pl.project13.maven</groupId>
        <artifactId>git-commit-id-plugin</artifactId>
        <executions>
          <execution>
            <goals>
              <goal>revision</goal>
            </goals>
          </execution>
        </executions>
        <configuration>
          <verbose>true</verbose>
          <dateFormat>yyyy-MM-dd'T'HH:mm:ssZ</dateFormat>
          <generateGitPropertiesFile>true</generateGitPropertiesFile>
          <generateGitPropertiesFilename>${project.build.outputDirectory}/git.properties
          </generateGitPropertiesFilename>
          <failOnNoGitDirectory>false</failOnNoGitDirectory>
        </configuration>
      </plugin>

      <plugin>
        <groupId>ro.isdc.wro4j</groupId>
        <artifactId>wro4j-maven-plugin</artifactId>
        <version>${wro4j.version}</version>
        <executions>
          <execution>
            <phase>generate-resources</phase>
            <goals>
              <goal>run</goal>
            </goals>
          </execution>
        </executions>
        <configuration>
          <wroManagerFactory>ro.isdc.wro.maven.plugin.manager.factory.ConfigurableWroManagerFactory</wroManagerFactory>
          <cssDestinationFolder>${project.build.directory}/classes/static/resources/css</cssDestinationFolder>
          <wroFile>${basedir}/src/main/wro/wro.xml</wroFile>
          <extraConfigFile>${basedir}/src/main/wro/wro.properties</extraConfigFile>
          <contextFolder>${basedir}/src/main/less</contextFolder>
        </configuration>
        <dependencies>
          <dependency>
            <groupId>org.webjars</groupId>
            <artifactId>bootstrap</artifactId>
            <version>${webjars-bootstrap.version}</version>
          </dependency>
        </dependencies>
      </plugin>
    </plugins>
  </build>
  <reporting>
    <plugins>
      <!-- integrate maven-cobertura-plugin to project site -->
      <plugin>
        <groupId>org.codehaus.mojo</groupId>
        <artifactId>cobertura-maven-plugin</artifactId>
        <version>${cobertura.version}</version>
        <configuration>
          <formats>
            <format>html</format>
          </formats>
          <check />
        </configuration>
      </plugin>
    </plugins>
  </reporting>

</project>

非常感谢任何帮助

感谢

Answer 1

我遇到了同样的问题。 幸运的是，由于教程线程中的一条评论，我能够弄明白。

本教程第5步的这一行不正确：

spring.datasource.url=jdbc:mysql://google/petclinic?cloudSqlInstance=INSTANCE_CONNECTION_NAME=com.google.cloud.sql.mysql.SocketFactory

相反，你应该：

spring.datasource.url=jdbc:mysql://google/petclinic?cloudSqlInstance=INSTANCE_CONNECTION_NAME&socketFactory=com.google.cloud.sql.mysql.SocketFactory

这真的很不幸。希望有所帮助。