JHipster 和数据库连接

Question

我正在使用 JHipster，当我运行 sudo mvn liquibase:diff 时出现以下错误

[INFO] Settings
----------------------------
[INFO]     driver: org.postgresql.Driver
[INFO]     url: jdbc:postgresql://localhost/gastos8
[INFO]     username: gastos8
[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:com.cboujon.domain?dialect=org.hibernate.dialect.PostgreSQL82Dialect
[INFO]     referenceUsername: null
[INFO]     referencePassword: null
[INFO]     referenceDefaultSchema: null
[INFO]     diffChangeLogFile: src/main/resources/config/liquibase/changelog/20150807132702_changelog.xml
[INFO] ------------------------------------------------------------------------
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 9.554s
[INFO] Finished at: Fri Aug 07 13:27:12 ART 2015
[INFO] Final Memory: 18M/179M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.liquibase:liquibase-maven-plugin:3.3.2:diff (default-cli) on project gastos8: Error setting up or running Liquibase: liquibase.exception.DatabaseException: org.postgresql.util.PSQLException: FATAL: password authentication failed for user "gastos8" -> [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

我不知道为什么[INFO] username: gastos8。

这是我的配置文件：

application-dev.yml

spring:
    profiles:
        active: dev
    datasource:
        dataSourceClassName: org.postgresql.ds.PGSimpleDataSource
        url: 
        databaseName: gastos8
        serverName: localhost
        username: postgres
        password:  ---

    jpa:
        database-platform: org.hibernate.dialect.PostgreSQL9Dialect
        database: POSTGRESQL
        openInView: false
        show_sql: true
        generate-ddl: false
        hibernate:
            ddl-auto: none
            naming-strategy: org.hibernate.cfg.EJB3NamingStrategy
        properties:
            hibernate.cache.use_second_level_cache: true
            hibernate.cache.use_query_cache: false
            hibernate.generate_statistics: true
            hibernate.cache.region.factory_class: org.hibernate.cache.ehcache.SingletonEhCacheRegionFactory

我做错了什么？

Answer 1

Liquibase maven 插件不会读取 application.yml 来知道如何连接到您的数据库，它在您的 pom.xml 中有自己的配置。所以你必须把它放在那里。

你为什么用 sudo 执行 maven？ 现在，您可能拥有 root 拥有的项目文件，这通常是个坏主意。

Answer 2

正如在接受的答案中所说，maven 不读取 application.yml。

但是，如果您对在 maven liquibase 插件定义中进行数据库配置感到不舒服，您可以使用 maven 属性和 liquibase 配置文件。

1 - 在您的 liquibase-maven-plugin 配置中，添加 propertyFile ：

<plugin>
    <groupId>org.liquibase</groupId>
    <artifactId>liquibase-maven-plugin</artifactId>
    <version>${liquibase.version}</version>
    <configuration>
        <propertyFileWillOverride>true</propertyFileWillOverride>
        <propertyFile>src/main/resources/liquibase.properties</propertyFile>
    </configuration>
    (...)
</plugin>

2 - 在 src/main/resources 下的任意位置创建 liquibase 属性文件。例如， src/main/resources/config/liquibase ：

contexts:${liquibase.contexts}
changeLogFile:src/main/resources/config/liquibase/master.xml
driver:${dataSource.project.driverClass}
url:${dataSource.project.jdbcURL}
username:${dataSource.project.user}
password:${dataSource.project.password}
verbose:true
dropFirst:false

3 - 告诉 maven 过滤您的 liquibase 属性文件以用 maven 属性替换值。在<build>，让 maven 过滤你的 liquibase 配置文件：

<build>
    <resources>
        <resource>
            <directory>src/main/resources/config/liquibase</directory>
            <filtering>true</filtering>
        </resource>
    </resources>
    (...)
</build>

4 - 为每个允许启动 liquibase 目标的配置文件添加 maven 属性：

<profile>
    <id>dev</id>
    (...)
    <properties>
        <liquibase.contexts></liquibase.contexts>
        <dataSource.project.driverClass>org.mariadb.jdbc.Driver</dataSource.project.driverClass>
        <dataSource.project.jdbcURL>jdbc:mariadb://localhost:3306/yourDatabaseName</dataSource.project.jdbcURL>
        <dataSource.project.user>${datasource.username}</dataSource.project.user>
        <dataSource.project.password>${datasource.password}</dataSource.project.password>
    </properties>
</profile>

5 - 使用 maven 启动 liquibase 目标并在命令行中设置凭据：

mvn resources:resources liquibase:update -Pdev -Ddatasource.username=root -Ddatasource.password=root

来源：Liquibase Maven Documentation

Answer 3

datasource:
        driver-class-name: com.mysql.jdbc.jdbc2.optional.MysqlDataSource
        url: jdbc:mysql://database hosting address:3306/database Name?useUnicode=true characterEncoding=utf8
        name: database Name
        username: database user name 
        password: and put here database user password

Answer 4

在文件 src/main/resources/config/application-dev.yml

datasource:
        driver-class-name: com.mysql.jdbc.jdbc2.optional.MysqlDataSource
        url: jdbc:mysql://localhost:3306/DBNAME?useUnicode=true characterEncoding=utf8
        name: DBNAME
        username: USERNAME 
        password: PWD

你必须改变：

DBNAME
USERNAME 
PWD

别忘了改变生产方式

src/main/resources/config/application-prod

和localhost 在网址中：jdbc:mysql://localhost:3306 到您的网址