springboot项目中@PathVariable中get请求中有|报400错误

http://localhost:9105/publishTheme/ST0821122|461

后端直接改成这种也没用，除非前端也得做加码才可以

@GetMapping("/{id}")
    public Object getPublishTheme(@PathVariable String id) {
        Map<String,Object> params= new HashMap<String,Object>();
        String decodeId="";
        try {
            decodeId=URLDecoder.decode(id,"UTF-8");
        } catch (UnsupportedEncodingException e) {
            logger.error(e.getMessage(), e);
        }
        params.put("ID",decodeId);
        return publishThemeService.getPublishTheme(params);
    }