springmvc using excel template to export - spring

Question

The code works well but when I setUrl to use my template in Excel, I get this error:
ApplicationObjectSupport instance [key.kotori.sms.utils.reports.StockReportsExcel: unnamed] does not run in an ApplicationContext'.
public class StockReportsExcel extends AbstractExcelView {
private StockReports reports;
public StockReportsExcel(StockReports reports) {
this.reports = reports;
//super.setUrl("report/stock.xls");
}
#Override
protected void buildExcelDocument(
Map<String, Object> model,
HSSFWorkbook workbook,
HttpServletRequest request,
HttpServletResponse response) throws Exception {
workbook.createSheet().createRow(0).createCell(0).setCellValue("kotori");
RequestEncoding.encoding(request, response, "test.xls");
response.setContentType("application/vnd.ms-excel");
}
}
Controller
#RequestMapping("/excel.do")
public View excel(Params params) {
StockReports reports = this.stockReportService.reports(params);
StockReportsExcel excel = new StockReportsExcel(reports);
return excel;
}
I didn't set any ViewResolver in applicationContext.xml. Is there anything I'm missing in appicationContext.xml?
Here is the applicationContext.xml file.
<context:component-scan base-package="key.kotori.sms"></context:component-scan>
<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
<property name="driverClassName" value="com.mysql.jdbc.Driver"/>
<property name="url" value="jdbc:mysql://localhost:3306/sms"/>
<property name="username" value="root"/>
<property name="password" value="admin"/>
</bean>
<bean id="sessionFactory" class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
<property name="dataSource" ref="dataSource"></property>
<property name="mappingDirectoryLocations">
<list>
<value>classpath:key/kotori/sms/entity</value>
</list>
</property>
<property name="hibernateProperties">
<value>
hibernate.dialect=org.hibernate.dialect.MySQLDialect
hibernate.show_sql=true
hibernate.format_sql=true
</value>
</property>
</bean>
<bean id="transactionManager" class="org.springframework.orm.hibernate3.HibernateTransactionManager">
<property name="sessionFactory" ref="sessionFactory"></property>
</bean>
<tx:advice id="txAdivce" transaction-manager="transactionManager">
<tx:attributes>
<tx:method name="get" read-only="true" />
<tx:method name="list*" read-only="true" />
<tx:method name="*" />
</tx:attributes>
</tx:advice>
<aop:config>
<aop:advisor advice-ref="txAdivce" pointcut="execution(* key.kotori.sms.service.*.*(..))" />
</aop:config>