Unitils:如何从Spring获取数据库属性

时间:2012-02-21 18:31:36

标签: spring unit-testing unitils

我正在使用Unitils和Spring进行单元测试。我使用属性文件为Spring配置了数据源。

我的问题是如何为Unitils使用相同的数据源或相同的属性?

Unitils期望classpath unitils.properties中的文件包含数据库配置参数,如url,user,password和driver。

我尝试使用Spring配置中使用的属性配置Unitils,但它不起作用。

database.driverClassName=${jdbc.driver.class}

谢谢, 阿迪

3 个答案:

答案 0 :(得分:1)

一个可能的解决方案......您可以让您的Spring配置从unitils.properties读取其数据源参数,而不是相反。可能不理想。

我相信unitils正在使用spring,因此您也可以尝试使用@SpringApplicationContext在unitils测试中添加数据源上下文。如果你可以在启动时通过unitils找出数据源bean设置的名称,你可以在你的上下文中覆盖它(假设在其他spring bean之前创建unitils数据源bean可能/可能不是真的。)< / p>

e.g。

@SpringApplicationContext({"correctDataSourceContext.xml"})

编辑:肯定会有效的另一种选择:https://stackoverflow.com/a/6561782/411229 基本上自己实例化Unitils并手动设置属性。

答案 1 :(得分:1)

虽然我使用了不同的方法,但Ryan的回答是正确和有用的。

我扩展了类PropertiesDataSourceFactory ro覆盖方法如下:

public class UnitilsDataSourceFactory extends PropertiesDataSourceFactory {

    @Override
    public void init(Properties configuration) {
        try {
            String[] configFiles = new String[] { "applicationContext-test.xml" };
            BeanFactory factory = new ClassPathXmlApplicationContext(configFiles);

            SystemPropertiesReader systemPropertiesReader = (SystemPropertiesReader) factory.getBean("systemPropertiesReader");
            Properties loadProperties = systemPropertiesReader.loadProperties();

            super.init(loadProperties);
        } catch (Exception e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    }

    @Override
    public DataSource createDataSource() {
        DataSource dataSource = super.createDataSource();
        return dataSource;
    }

}

并且还将SystemPropertiesReader编写为:

public class SystemPropertiesReader {

    private Collection<Resource> resources;

    public void setResources(final Collection<Resource> resources) {
        this.resources = resources;
    }

    public void setResource(final Resource resource) {
        resources = Collections.singleton(resource);
    }

    @PostConstruct
    public Properties loadProperties() throws Exception {
        final Properties systemProperties = System.getProperties();
        for (final Resource resource : resources) {
            final InputStream inputStream = resource.getInputStream();
            try {
                systemProperties.load(inputStream);
            } finally {
                //
            }
        }

        return systemProperties;
    }

}

并添加了一个带有属性文件的bean:

<bean id="systemPropertiesReader" class="uk.co.friendslife.eventmanager.domain.dao.SystemPropertiesReader">
            <property name="resource">
                <value>classpath:/META-INF/em/config/eventmanager_${database_name_lower}.properties</value>
            </property>
</bean>

将以下内容添加到unitils.properties:

org.unitils.database.config.DataSourceFactory.implClassName=x.y.UnitilsDataSourceFactory

答案 2 :(得分:0)

只是想添加一些想法,我不确定这是否是最佳做法,如果错误的话,请纠正我。

  • MYPROJECT
    - 的 SRC
    --TestPackage
    --- BaseServiceTest.class
    --- BlogspotServiceTest.class
    --hibernate.cfg.xml
    - 网络
    --Web-INF
    --- BlogSpot的-的servlet-的test.xml
    --- jdbc-test.properties

就我而言,我使用blogspot-servlet-test.xml来调用或创建数据源

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns:aop="http://www.springframework.org/schema/aop"
    xmlns:context="http://www.springframework.org/schema/context"
    xmlns:jee="http://www.springframework.org/schema/jee"
    xmlns:lang="http://www.springframework.org/schema/lang"
    xmlns:p="http://www.springframework.org/schema/p"
    xmlns:tx="http://www.springframework.org/schema/tx"
    xmlns:util="http://www.springframework.org/schema/util"
    xmlns:mvc="http://www.springframework.org/schema/mvc"
    xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
        http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd
        http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd
        http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd
        http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee.xsd
        http://www.springframework.org/schema/lang http://www.springframework.org/schema/lang/spring-lang.xsd
        http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd
        http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util.xsd">

     .... some bean configuration

    <bean id="propertyConfigurer" 
          class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer"
          p:location="file:web/WEB-INF/jdbc.properties"/>


    <bean id="dataSource"
          class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close"
          p:driverClassName="${jdbc.driverClassName}"
          p:url="${jdbc.databaseurl}"
          p:username="${jdbc.username}"
          p:password="${jdbc.password}"/>

    <bean id="sessionFactory" class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
        <property name="dataSource" ref="dataSource"/>
        <property name="configLocation" value="classpath:hibernate.cfg.xml"/>
        <property name="hibernateProperties">
            <props>
                <prop key="hibernate.dialect">${jdbc.dialect}</prop>
                <prop key="hibernate.show_sql">true</prop>
                <prop key="hibernate.hbm2ddl.auto">update</prop>
            </props>
        </property>
     </bean>

     <!-- DAO'S -->
     <bean id="blogspotDAO" class="package.BlogspotDAOImpl"/>

     <!-- SERVICES -->
     <bean id="blogspotService" class="package.BlogspotServiceImpl"/>

     <bean id="transactionManager" class="org.springframework.orm.hibernate4.HibernateTransactionManager">
        <property name="sessionFactory" ref="sessionFactory"/>
     </bean>


     <tx:annotation-driven transaction-manager="transactionManager"/>
</beans>

我的jdbc-test.properties文件

jdbc.driverClassName=com.mysql.jdbc.Driver
jdbc.dialect=org.hibernate.dialect.MySQL5Dialect
jdbc.databaseurl=jdbc:mysql://127.0.0.1:3306/dbspringminiblogtest
jdbc.username=root
jdbc.password=

对于hibernate.cfg.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE hibernate-configuration PUBLIC
    "-//Hibernate/Hibernate Configuration DTD//EN"
    "http://www.hibernate.org/dtd//hibernate-configuration-3.0.dtd">

    <hibernate-configuration>
        <session-factory>
            <mapping class="somePackage.entity.Author"/>
            <!-- Other Entity Class to be mapped -->

        </session-factory>
    </hibernate-configuration>

我为我创建了BaseClass以减少创建多个@SpringApplicationContext注释,它还用于配置测试其他类所需的常用配置,只需对其进行扩展。

@SpringApplicationContext({"file:web/WEB-INF/blogspot-servlet-test.xml"})
public class BaseServiceTest extends UnitilsJUnit4 {
}

我使用@SpringApplicationContext在我的BaseClass上加载数据源和其他bean配置,这就是我实现它的方式。

下方:见Spring-Unitils Tutorial  了解更多详情

public class BlogspotServiceTest extends BaseServiceTest{

    @Mock
    @InjectInto(property = "blogspotDAO")
    @SpringBean("blogspotDAO")
    private BlogspotDAO blogspotDAOMock;

    @TestedObject
    @SpringBean("blogspotService")
    private BlogspotService blogspotServiceMock;

    @Test
    public void testAddBlogSpot() {
        assertNotNull("BlogspotService Not null",blogspotServiceMock);
    }
}

注意:请在TestPackage中创建unitils.properties和unitils-local.properties以便能够运行该程序。

对于@SpringBean说明和其他注释,请阅读:

Unitils-EasyMock