ajax乱码 easyui IE 火狐 传值乱码问题

jsp文件

var $str=encodeURI($('#name1').val());
     $.ajax({
       url : '/springmvcHome/incom/saveHomeincom.do',
       data : {
        name : $str,

 

后台

/*
  * 新增收入
  */
 @RequestMapping("/saveHomeincom")
 public String saveHomeIncom(HomeIncom homeIncom,HttpServletRequest  request,HttpServletResponse  response){
  String username ;
  String  remarks;
  
  
  try {
    response.setContentType("text/html;charset=utf-8");
    username = java.net.URLDecoder.decode(homeIncom.getName(), "utf-8");
    
    System.out.println(username);