/**
     * 转发     forward:资源路径
     * 重定向  redirect：资源路径
     */
    @RequestMapping("demo8")
    public String demo8() {
        return "redirect:/login.jsp";
    }

    /**
     * 如果在前天加了forward或redirect则会走默认解析器
     * @return
     */
    @RequestMapping("demo9")
    public String demo9() {
        return "forward:demo10"; 
    }
    @RequestMapping("demo10")
    public String demo10() {
        return "login";
    }

   <bean id="viewResole" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="prefix" value="/"></property>
        <property name="suffix" value=".jsp"></property>
    </bean>