View Resolver 설정
개요
view의 이름과 실제 view 사이의 대응 관계를 설정
InternalResourceViewResolver
 <!-- ===================== View Resolver ================================== -->
 <bean id="viewResolver"
  class="org.springframework.web.servlet.view.InternalResourceViewResolver">
  <property name="viewClass"
   value="org.springframework.web.servlet.view.JstlView" />
  <property name="prefix" value="/WEB-INF/jsp/" />
  <property name="suffix" value=".jsp" />
 </bean>