java - Spring MVC 3.2.8 : Create a new FileSystemXmlApplicationContext and loading the definitions from the given XML files

Question

我有一个 Spring MVC 3.2.8 应用程序，我想运行独立进程来生成 PDF。我想从独立应用程序初始化容器并管理 bean。我有这段代码:

   public class CreatePDF {


        private static final Logger LOGGER = Logger.getLogger   (ImportEcolabelToolboxToECAT.class);

        public static void main(String[] args) {


            String[] configLocations = new String[] {   

"C:/Development/Workspaces/EclipseWS/devices/deviceWeb/src/main/resources/com/nicinc/dao/dataAccessContext.xml",

"C:/Development/Workspaces/EclipseWS/devices/deviceWeb/src/main/webapp/WEB-INF/dao/databaseMessageSource.xml",
                                                        "C:/Development/Workspaces/EclipseWS/devices/deviceWeb/src/main/resources/com/nicinc/services/impl/servicesContext.xml", 
                                                        "C:/Development/Workspaces/EclipseWS/devices/deviceWeb/src/main/webapp/WEB-INF/applicationContext.xml",                                              
                                                        "C:/Development/Workspaces/EclipseWS/devices/deviceWeb/src/main/resources/com/nicinc/controller/propertyeditors/propertyeditorsContext.xml"};

            FileSystemXmlApplicationContext ctx = 
                    new FileSystemXmlApplicationContext(configLocations, true);

        }
    }

但是我在运行应用程序时遇到此错误。

Error creating bean with name 'dataSource': Invocation of init method failed; nested exception is javax.naming.NoInitialContextException: Need to specify class name in environment or system property, or as an applet parameter, or in an application resource file:  java.naming.factory.initial

这里是文件 dataAccessContext.xml 中的定义:

 <!-- The PropertyPlaceholderConfigurer replaces placeholders in Spring bean definitions with the values from the chosen properties files. -->
    <!-- There is an example use in the datasource definition below. Look for the $\{jdbc.*} values. -->
    <bean id="propertyConfigurer"
        class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
        <property name="locations">
            <list>
                <value>classpath:com/nicinc/dao/jdbc-test.properties</value>                 
                <value>classpath:com/nicinc/dao/dbMessageSource.properties</value>
            </list>
        </property>
    </bean>

    <bean id="transactionManager" class="org.springframework.orm.jpa.JpaTransactionManager">
        <property name="entityManagerFactory" ref="entityManagerFactory" />
        <property name="dataSource" ref="dataSource" />
    </bean>

    <bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
        <property name="driverClassName" value="${jdbc.driverClassName}" />
        <property name="url" value="${jdbc.url}" />
        <property name="username" value="${jdbc.username}" />
        <property name="password" value="${jdbc.password}" />
    </bean>

    <bean id="entityManagerFactory" class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
        <property name="dataSource" ref="dataSource"/>
        <property name="persistenceXmlLocation" value="classpath*:META-INF/persistence.xml" />
        <property name="jpaVendorAdapter">
            <bean class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter">
                <property name="databasePlatform"   value="${hibernate.dialect}"/>
                <property name="generateDdl"        value="false"/>
                <property name="showSql"            value="false" />
            </bean>
        </property>         
    </bean>   

    <bean class="org.springframework.orm.jpa.support.PersistenceAnnotationBeanPostProcessor" />

Answer 1

javax.naming 包包含 JNDI Api。由于它只是一个 API，因此您必须提供其实现。一般由App server提供实现。根据错误，您缺少 JNDI 实现。可能的解决方案:

1. 如果您没有任何javaee相关需求，那么您应该直接使用DriverManagerDataSource。
2. 您需要提供自己的实现。下面的链接可能会有所帮助。 using application data source locally.