feign使用okhttp3的Get方式请求接口时必须加@RequestParam,否则会报错feign method GET must not have a request body,name传入null值也会报错,feign的get请求使用默认的时候,也得加@RequestParam,并且得有value,否则会报另一个错,param.value empty
public Object getParamsByAppCode(@RequestParam(value = "appCode") String appCode,@RequestParam(value = "name",required=false) String name);