JHipster - 运行 liquibase:diff 由于“访问被拒绝”而失败

Question

在 JHipster 中向实体添加字段时，最后一步（使用 MySQL 时）正在运行

./mvnw 编译 liquibase:diff

根据https://jhipster.github.io/development/ 的文档

但是，这不适用于我相当简单的安装，因为该过程没有使用正确的 MySQL 用户并通过。我的应用在开发配置文件中运行良好，但不是这样。

Liquibase 从哪里获取凭据？

您可以在下面看到输出。

[INFO]   artifact: file:/Users/wouter/.m2/repository/org/glassfish/javax.el/3.0.0/javax.el-3.0.0.jar
[INFO]   artifact: file:/Users/wouter/.m2/repository/org/springframework/boot/spring-boot-devtools/1.4.2.RELEASE/spring-boot-devtools-1.4.2.RELEASE.jar
[INFO]   artifact: file:/Users/wouter/Business/Workspace/imi-publishing-cloud/target/classes/
[INFO]   artifact: file:/Users/wouter/Business/Workspace/imi-publishing-cloud/target/test-classes/
[INFO] ------------------------------------------------------------------------
[INFO] Settings
----------------------------
[INFO]     driver: com.mysql.jdbc.Driver
[INFO]     url: jdbc:mysql://localhost:3306/imicloud
[INFO]     username: root
[INFO]     password: *****
[INFO]     use empty password: false
[INFO]     properties file: null
[INFO]     properties file will override? false
[INFO]     prompt on non-local database? true
[INFO]     clear checksums? false
[INFO]     changeLogFile: src/main/resources/config/liquibase/master.xml
[INFO]     context(s): null
[INFO]     label(s): null
[INFO]     referenceDriver: null
[INFO]     referenceUrl: hibernate:spring:be.storefront.imicloud.domain?dialect=org.hibernate.dialect.MySQL5InnoDBDialect&hibernate.physical_naming_strategy=org.springframework.boot.orm.jpa.hibernate.SpringPhysicalNamingStrategy&hibernate.implicit_naming_strategy=org.springframework.boot.orm.jpa.hibernate.SpringImplicitNamingStrategy
[INFO]     referenceUsername: null
[INFO]     referencePassword: null
[INFO]     referenceDefaultSchema: null
[INFO]     diffChangeLogFile: src/main/resources/config/liquibase/changelog/20170125143850_changelog.xml
[INFO] ------------------------------------------------------------------------
Wed Jan 25 15:38:57 CET 2017 WARN: Establishing SSL connection without server's identity verification is not recommended. According to MySQL 5.5.45+, 5.6.26+ and 5.7.6+ requirements SSL connection must be established by default if explicit option isn't set. For compliance with existing applications not using SSL the verifyServerCertificate property is set to 'false'. You need either to explicitly disable SSL by setting useSSL=false, or set useSSL=true and provide truststore for server certificate verification.
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 7.129 s
[INFO] Finished at: 2017-01-25T15:38:58+01:00
[INFO] Final Memory: 63M/787M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.liquibase:liquibase-maven-plugin:3.5.3:diff (default-cli) on project imicloud: Error setting up or running Liquibase: liquibase.exception.DatabaseException: java.sql.SQLException: Access denied for user 'root'@'localhost' (using password: NO) -> [Help 1]
[ERROR] 
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR] 
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoExecutionException

首先出现的是使用了正确的设置。我的数据库被称为“imicloud”，但后来错误是：

java.sql.SQLException: Access denied for user 'root'@'localhost' (using password: NO) 

显然我正在使用 MySQL 的密码。

如何解决这个问题？

我想我错过了一个重要的设置步骤，因为这是我第一次使用 liquibase:diff 命令。

Answer 1

mvn liquibase 命令使用的凭据可在您的 pom.xml 中找到，位于 liquibase 插件的配置标签中。 pom.xml 的部分如下所示：

        <plugin>
            <groupId>org.liquibase</groupId>
            <artifactId>liquibase-maven-plugin</artifactId>
            <version>${liquibase.version}</version>
            <configuration>
                <changeLogFile>src/main/resources/config/liquibase/master.xml</changeLogFile>
                <diffChangeLogFile>src/main/resources/config/liquibase/changelog/${maven.build.timestamp}_changelog.xml</diffChangeLogFile>
                <driver>com.mysql.jdbc.Driver</driver>
                <url>jdbc:mysql://localhost:3306/ng2</url>
                <defaultSchemaName>ng2</defaultSchemaName>
                <username>root</username>
                <password></password>
                <referenceUrl>hibernate:spring:com.mycompany.myapp.domain?dialect=org.hibernate.dialect.MySQL5InnoDBDialect&amp;hibernate.physical_naming_strategy=org.springframework.boot.orm.jpa.hibernate.SpringPhysicalNamingStrategy&amp;hibernate.implicit_naming_strategy=org.springframework.boot.orm.jpa.hibernate.SpringImplicitNamingStrategy</referenceUrl>
                <verbose>true</verbose>
                <logging>debug</logging>
            </configuration>
            ...

Answer 2

在 src/main/resources/config/application-.yml 或 application-.properties 文件中相应地配置 Spring Boot 属性

像这样添加数据库 URL 的结尾。

url: jdbc:mysql://localhost:3306/imicloud?u‌​seSSL=false