springboot java调用flask python写的

服务a用flask，服务b用的springboot，服务a写的接口，用python很容易就调通了，java来调，坑有点多

1、url最后的斜杠必须两边对应上，否则flask会先308，而且 content type [text/html;charset=utf-8]，连对应的HttpMessageConverter都没有

org.springframework.web.client.RestClientException: Could not extract response: no suitable HttpMessageConverter found for response type [com.api.ApiResponse] and content type [text/html;charset=utf-8]

2、get请求的参数传递，

两种方式，一是uri参数

如/api/v1/test/{code}}

restTemplate.exchange(URL, HttpMethod.GET, new HttpEntity(), new ParameterizedTypeReference>>() {
}, code);

另一种，接在uri上，如如/api/v1/test/？code=358

restTemplate.exchange(URL, HttpMethod.GET, new HttpEntity