springmvc无法访问/WEB-INF/views下的jsp的解决方法

<!-- 视图处理器 --> 
  <bean id="viewResolver" 
     class="org.springframework.web.servlet.view.InternalResourceViewResolver"> 
    <property name="prefix" value="/WEB-INF/views/"/> 
    <property name="suffix" value=".jsp"/> 
  </bean> 

package enht.soft.projectmanagement.controller; 
 
import org.springframework.stereotype.Controller; 
import org.springframework.web.bind.annotation.RequestMapping; 
import org.springframework.web.bind.annotation.RequestMethod; 
 
/** 
 * Created by Administrator on 2016-09-29. 
 */ 
@Controller 
@RequestMapping(value = "/web", method = {RequestMethod.GET, RequestMethod.POST}) 
public class URLController { 
  @RequestMapping(value = "/login") 
  public String login() { 
    return "login"; 
  } 
 
  @RequestMapping(value = "/main") 
  public String main() { 
    return "mainframe"; 
  } 
}