在unitils配置文件中无法识别Maven- Pom.xml属性

Question

我将数据库配置包含在pom.xml文件中，以便将其用于我的项目测试。我使用unitils进行数据库集成。我的pom.xml属性是

    <test.database.rules-satellite.driver>com.mysql.jdbc.Driver</test.database.rulessatellite.driver>
    <test.database.rules-satellite.server>localhost</test.database.rules-satellite.server>
    <test.database.rules-satellite.schema>R133_isp_copie_pdx</test.database.rules-satellite.schema>
    <test.database.rules-satellite.url>jdbc:mysql://${test.database.rules-satellite.server}/${test.database.rules-satellite.schema}</test.database.rules-satellite.url>

    <test.database.rules-satellite.username>junit</test.database.rules-satellite.username>
    <test.database.rules-satellite.password>junit</test.database.rules-satellite.password>

和我的unitils配置如下：

# Properties for the`enter code here` PropertiesDataSourceFactory
database.driverClassName=com.mysql.jdbc.Driver
database.url=jdbc:mysql://${test.database.rules-satellite.server}/${test.database.rules-satellite.schema}

# This property specifies the underlying DBMS implementation. Supported values are 'oracle', 'db2', 'mysql' and 'hsqldb'.
# The value of this property defines which vendor specific implementations of DbSupport and ConstraintsDisabler are chosen.
database.dialect=mysql

# user properties
database.userName=${test.database.rules-satellite.username}
database.password=${test.database.rules-satellite.password}
database.schemaNames=${test.database.rules-satellite.schema}

当我运行测试时，出现以下错误：

开始嵌套例外

java.net.UnknownHostException
MESSAGE: ${test.database.rules-satellite.server}

堆栈跟踪：

java.net.UnknownHostException: ${test.database.rules-satellite.server}
    at java.net.Inet6AddressImpl.lookupAllHostAddr(Native Method)
    at java.net.InetAddress$1.lookupAllHostAddr(InetAddress.java:849)
    at java.net.InetAddress.getAddressFromNameService(InetAddress.java:1202)
    at java.net.InetAddress.getAllByName0(InetAddress.java:1153)
    at java.net.InetAddress.getAllByName(InetAddress.java:1083)
    at java.net.InetAddress.getAllByName(InetAddress.java:1019)

我认为Maven属性没有被传播，这就是为什么unitil无法识别它们的原因。

Answer 1

正如Marcin Krasowski指出的那样，您需要使用资源插件，即只需添加

<build>
  <resources>
    <resource>
       <directory>(path to the parent directory of your unitils conf file)</directory>
       <filtering>true</filtering>
    </resource>
  </resources>
</build>

默认情况下，Maven不会在所有文件中替换${}变量，您可以使用资源插件告诉它这样做。

Answer 2

您需要使用带有过滤选项的Maven资源插件。 可以在以下位置找到更详细的解释： http : //www.manydesigns.com/en/portofino/portofino3/tutorials/using-maven-profiles-and-resource-filtering/#TOC-Resource-filtering