用idea15开发 springmvc项目时报404错误，求大神告知原因

web.xml配置如下：

rest
org.springframework.web.servlet.DispatcherServlet

contextConfigLocation
/WEB-INF/rest-servlet.xml

1


rest
/restful/*

    rest-servlet.xml配置如下：
    <beans xmlns="http://www.springframework.org/schema/beans"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="  
    http://www.springframework.org/schema/beans       
    http://www.springframework.org/schema/beans/spring-beans-3.0.xsd  
    http://www.springframework.org/schema/context   
    http://www.springframework.org/schema/context/spring-context-3.0.xsd  
    http://www.springframework.org/schema/mvc  
    http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd">


<description>Spring MVC for Restful</description>
<!--检测注解 -->
<context:component-scan base-package="com.onlyyou.java.controller" />
<context:annotation-config />  
<mvc:annotation-driven />
<mvc:default-servlet-handler/>
</beans>

Controller代码如下：
@Controller

@RequestMapping("/hello")
public class HelloController {
@RequestMapping(value="/user", method= RequestMethod.GET)
@ResponseBody
public UserBean testParam(@RequestParam("username") String name) {
UserBean userBean = new UserBean();
userBean.setAvatar("123");
userBean.setBirthday("323");
userBean.setCensusRegister("dfda");
return userBean;

}

}
最后再浏览器访问http://localhost:6080/onlyyou/restful/hello/user?username=tom报404的错误

重新粘贴一下代码,web.xml如下：
<?xml version="1.0" encoding="UTF-8"?>
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"
version="3.1">

contextConfigLocation
/WEB-INF/applicationContext.xml


org.springframework.web.context.ContextLoaderListener

<servlet>
    <servlet-name>rest</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <init-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>/WEB-INF/rest-servlet.xml</param-value>
    </init-param>
    <load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
    <servlet-name>rest</servlet-name>
    <url-pattern>/restful/*</url-pattern>
</servlet-mapping>

6080端口，，写错了吗？

前端没有渲染,添加依赖<dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-thymeleaf</artifactId>
        </dependency>