Use RestTemplate reported 301 Moved Permanently resolve

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This link: https://blog.csdn.net/Wu_Kunbo/article/details/102582036

Problem Description

今天想尝试使用今日头条的城市接口
https://www.toutiao.com/stream/widget/local_weather/city/

(Get to all of China's provinces, cities). The results browser to directly access the following

with RestTemplate direct access to this address, as follows

   		RestTemplate restTemplate = new RestTemplate();
   		//消息头的ContentType
        MediaType type = MediaType.parseMediaType(MediaType.APPLICATION_JSON_UTF8_VALUE);
        //请求头
        HttpHeaders httpHeaders = new HttpHeaders();
        httpHeaders.setContentType(type);
        //请求体
        String httpBody = null;

        HttpEntity<String> httpEntity = new HttpEntity<>(httpBody,httpHeaders);
        URI uri = URI.create(url+"?"+params);

        //发起请求
        ResponseEntity<String> resp = restTemplate.exchange(uri, HttpMethod.GET, httpEntity, String.class);

        return resp.getBody();

The response body printout, as follows:

solve

Check out the online information. The reason isRequest can not be automatically forwarded
To implement auto-forwarding, you need toRedirection policy settings to create HttpClient, Add the following code.

HttpComponentsClientHttpRequestFactory factory =
				   new HttpComponentsClientHttpRequestFactory();

HttpClient httpClient =
				   HttpClientBuilder.create()
				  .setRedirectStrategy(new LaxRedirectStrategy())
				  .build();

factory.setHttpClient(httpClient);

restTemplate.setRequestFactory(factory);