RestTemplate请求https并返回请求错误之HttpComponentsClientHttpRequestFactory

1.来个HttpComponentsClientHttpRequestFactory方法:

   private HttpComponentsClientHttpRequestFactory generateHttpRequestFactory() throws KeyStoreException, NoSuchAlgorithmException, KeyManagementException {
        TrustStrategy acceptingTrustStrategy = (x509Certificates, authType) -> true;
        SSLContext sslContext = SSLContexts.custom().loadTrustMaterial(null, acceptingTrustStrategy).build();
        SSLConnectionSocketFactory connectionSocketFactory = new SSLConnectionSocketFactory(sslContext,
                new NoopHostnameVerifier());

        HttpClientBuilder httpClientBuilder = HttpClients.custom();
        httpClientBuilder.setSSLSocketFactory(connectionSocketFactory);
        CloseableHttpClient httpClient = httpClientBuilder.build();
        HttpComponentsClientHttpRequestFactory factory = new HttpComponentsClientHttpRequestFactory();
        factory.setHttpClient(httpClient);
        return factory;
    }

2.使用this.generateHttpRequestFactory()

  public ResponseEntity<String> postUrlHnjg(String url, Map<String,String> params) {
        HttpHeaders headers = new HttpHeaders();
        headers.setAll(params);
        HttpEntity<String> httpEntity = new HttpEntity<>("", headers);
        try {
            restTemplate.setRequestFactory(this.generateHttpRequestFactory());

        }catch (Exception e){
            e.printStackTrace();
        }
        restTemplate.setErrorHandler(new DefaultResponseErrorHandler(){
            @Override
            public void handleError(ClientHttpResponse response) throws IOException {
                if(response.getRawStatusCode() != 401){
                   super.handleError(response);
                }
            }
        });
        return restTemplate.exchange(url, HttpMethod.POST, httpEntity, String.class);
   
    }

3.返回结果处理

 ResponseEntity<String> response=requestUtils.postUrlHnjg(url,params);
            JSONObject msgObj=JSONObject.parseObject(response.getBody());
            if(response.getStatusCode().series()==HttpStatus.Series.SUCCESSFUL){
                    HttpHeaders headerObj=response.getHeaders();
                    token=headerObj.get("token").get(0);
                    refreshTokenMap(token,userName);
            }else{
                throw new BusinessException(msgObj.getString("message"));
            }

借鉴:https://www.jianshu.com/p/bdfec19f96d2