6.回声测试

1.功能

测试rpc服务是否就绪

2.原理

所有reference代理都实现了EchoService接口

3.代码示例

    /**
     * 回声测试：扫一遍服务是否都已就绪
     * @param request
     * @param response
     * @return
     */
   @RequestMapping(value = "/test", method = RequestMethod.GET)
    @ResponseBody
    public HashMap test(HttpServletRequest request, HttpServletResponse response) {
        String[] serviceIds = new String[]{"productService","userService","orderService","payService"};
        HashMap<String,String> retMap = new HashMap<>();
        Object ret = null;
        for (String id:serviceIds){
            try {
                EchoService echoService = (EchoService)ctx.getBean(id);
                ret = echoService.$echo("ok");
                retMap.put(id,ret.toString());
            } catch (Exception e) {
                retMap.put(id,"not ready");
            }
        }
        return retMap;
    }