Question

I need an ANT task to validate spring configuration. I need to find problems at build time before runtime ? For example, In spring context file contains a property a bean, but this bean doesnt have this property. In eclipse, there is a tool Spring Explorer that do this validation.

感谢

org.springframework.web.context.ContextLoaderListener failed: org.springframework.beans.factory.BeanCreationException: Error creating bean with name readController defined in class path resource [applicationContext.xml]: Error setting property values; nested exception is org.springframework.beans.NotWritablePropertyException: Invalid property productOperations of bean class [com.bee.view.json.ReadController]: Bean property productOperations is not writable or has an invalid setter method.

Does the parameter type of the setter match the return type of the getter?.

Answer 1

An easy way to ensure that your context is valid would be to create a JUnit test, which loads the context. Using the spring-test.jar support classes makes that easy:

public class MyTest extends AbstractDependencyInjectionSpringContextTests {

    // this will be injected by Spring
    private QueryDao queryDao;
    private MyBusinessObject myBusinessObject;

    // ensure that spring will inject the objects to test by name
    public MyTest () {
        setAutowireMode(AUTOWIRE_BY_NAME);
    }

    @Override
    protected String[] getConfigLocations() {
        return new String[] { "applicationContextJUnit.xml" };
    }

    public void testQueryDao() {
        List<SomeData> list = queryDao.findSomeData();
        assertNotNull(list);
        // etc
    }

    public void testMyBusinessObject() {
        myBusinessObject.someMethod();
    }

    public void setQueryDao(QueryDao queryDao) {
        this.queryDao = queryDao;
    }
}

在网络应用中使用的一个背景是,Junnit不一定能获得同样的资源(例如,JNDI数据来源),因此,如果你在“应用文献目录”中引用以下内容的话:

<beans ...>
    <bean id="myBusinessObject" class="com.test.MyBusinessObject">
        <property name="queryDao" ref="queryDao"/>
    </bean>

    <bean id="queryDao" class="com.test.QueryDao">
        <property name="dataSource" ref="dataSource"/>
    </bean>

    <jee:jndi-lookup
          id="dataSource" 
          jndi-name="jdbc/mydatasource" 
          resource-ref="true" 
          cache="true" 
          lookup-on-startup="false"
          proxy-interface="javax.sql.DataSource"/>
</beans>

以及您的“申请”将进口“real”应用环境,并重新界定资源:

<beans ...>
    <import resource="classpath:applicationContext.xml"/>

    <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
        <property name="driverClassName" value="oracle.jdbc.OracleDriver"/>
        <property name="url" value="jdbc:oracle:thin:..."/>
        <property name="username" value="scott"/>
        <property name="password" value="tiger"/>
    </bean>
</beans>

这样,你的单位测试将装上应用环境(即使你在你的单位测试中没有明确测试),而且你可以相信,你的环境是正确的,因为春天自己装上了它。如果你有错误,那么单位测试就会失败。

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