SpringMVC @RequestParam 中文乱码问题解决

 客户端用GET方式请求​​SpringMVC​​时，如果用采用如下方式则中文没有出现乱码：

http://127.0.0.1:8080/SpringMVCHibernate4/rest/user/getUserById0/100-张三
@RequestMapping(value="/getUserById0/{id}-{name}",method=RequestMethod.GET)
@ResponseBody 
public String getUserById0(@PathVariable Long id, @PathVariable("name")String userName) {
  User user = new User();
  user.setUserName(userName);
  user.setId(id);
  return GsonUtil.toJson(user);
}

  但是如果采用如下方式则中文会出现乱码：

http://127.0.0.1:8080/SpringMVCHibernate4/rest/user/getUserById2?id=100&name=张三
@RequestMapping(value="/getUserById2",method=RequestMethod.GET)
@ResponseBody
public  String getUserById2(@RequestParam Long id, 
    RequestParam("name") String userName) {
    User user = new User();
    user.setUserName(userName);//乱码
    user.setId(id);
    return GsonUtil.toJson(user);
}

web.xml配置了字符编码过滤器，但是依然是乱码：

<filter>
    <filter-name>encodingFilter</filter-name>
    <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
        <init-param>
            <param-name>encoding</param-name>
            <param-value>UTF-8</param-value>
        </init-param>
    <init-param>
       <param-name>forceEncoding</param-name>
       <param-value>true</param-value>
    </init-param>
</filter>
<filter-mapping>
    <filter-name>encodingFilter</filter-name>
    <url-pattern>/*</url-pattern>
</filter-mapping>

 最终解决办法：修改tomcat默认编码（ISO-8859-1）方法，修改tomcat根目录的conf下的server.xml,Connector元素添加URIEncoding="UTF-8"属性，如下所示：

<Connector connectionTimeout="20000" port="8080" protocol="HTTP/1.1"  redirectPort="8443" URIEncoding="UTF-8" />