@RequestMapping(value = "/wxtest", method = RequestMethod.GET)
    @SJson
    @Filters({@By(type=CrossOriginFilter.class)})
    public Object wxtest(@RequestParam String param) {
        try {
            System.out.print("param="+param);
            return Result.success("ok");
        } catch (Exception e) {
            return Result.error("fail");
        }
    }

本地访问html 地址为：file:///D:/html/dist/html/leaseindex.html 里面调了这个方法
$(function () {
				$.get('http://qqz0fa9ea23.ngrok.wendal.cn/open/api/token/wxtest?param=xxxx',function(data){
					//内网穿透地址
					console.log(data)
				
					console.log("sssssssssssssssssssssss");
				})
			
				$.get("http://127.0.0.1:8080/open/api/token/wxtest?param=xxxx",function(data){
					console.log(data)
				
					console.log("sssssssssssssssssssssss");
				})
	
		})

浏览器报错 ：Failed to load http://127.0.0.1:8080/open/api/token/wxtest?param=xxxx: No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'null' is therefore not allowed access.
leaseindex.html:1 Failed to load http://qqz0fa9ea23.ngrok.wendal.cn/open/api/token/wxtest?param=xxxx: No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'null' is therefore not allowed access