RestTemplate.getObjectFor（String url，Class <t> responseType）和RestTemplate.getObjectFor（URI url，Class <t> responseType）

Question

我有Spring RestTemplate的问题，我尝试从返回JSON的地址获取数据。当我使用RestTemplate.getObjectFor（String url，Class responseType）时，我得到了关于无法读取文档的异常：意外字符（＆＃39;＆lt;＆＃39;（代码60））。但是，如果我使用RestTemplate.getObjectFor（URI url，Class responseType），那么它可以工作！

谁能告诉我为什么会这样？

以下是休息模板

的配置

 @Bean(name = "cernerRestTemplate")
  public RestTemplate cernerRestTemplate() throws NoSuchAlgorithmException {
    RestTemplate cernerRestTemplate = new RestTemplate();
    cernerRestTemplate.setRequestFactory(getHttpComponentsClientHttpRequestFactory());
    cernerRestTemplate.setMessageConverters(getMessageConverters());
    cernerRestTemplate.setInterceptors(getInterceptors());
    return cernerRestTemplate
}

private List<ClientHttpRequestInterceptor> getInterceptors() {
  Map<String, String> requestHeaders = new HashMap<String, String>();
  requestHeaders.put(HttpHeaders.ACCEPT, "*");

  Map<String, String> responseHeaders = new HashMap<String, String>();
  responseHeaders.put(HttpHeaders.CONTENT_TYPE,      MediaType.APPLICATION_XML_VALUE);

  HeaderHttpRequestInterceptor headerHttpRequestInterceptor = new HeaderHttpRequestInterceptor();
  headerHttpRequestInterceptor.setRequestHeaders(requestHeaders);
  headerHttpRequestInterceptor.setResponseHeaders(responseHeaders);

  BasicAuthenticationRequestInterceptor basicAuthenticationRequestInterceptor =
    new BasicAuthenticationRequestInterceptor(username, password);

  List<ClientHttpRequestInterceptor> interceptors = new ArrayList<ClientHttpRequestInterceptor>();
  interceptors.add(basicAuthenticationRequestInterceptor);
  interceptors.add(headerHttpRequestInterceptor);

  return interceptors;
}

private List<HttpMessageConverter<?>> getMessageConverters() {
  List<MediaType> supportedMediaTypes = new ArrayList<MediaType>();
  supportedMediaTypes.add(MediaType.APPLICATION_XML);

  MappingJackson2HttpMessageConverter mappingJackson2HttpMessageConverter =
    new MappingJackson2HttpMessageConverter();
   mappingJackson2HttpMessageConverter.setSupportedMediaTypes(supportedMediaTypes);

  List<HttpMessageConverter<?>> messageConverters = new ArrayList<HttpMessageConverter<?>>();
  messageConverters.add(new Jaxb2RootElementHttpMessageConverter());
  messageConverters.add(mappingJackson2HttpMessageConverter);

  return messageConverters;
}

private HttpComponentsClientHttpRequestFactory getHttpComponentsClientHttpRequestFactory()
  throws NoSuchAlgorithmException {
  RequestConfig.Builder requestConfigBuilder = RequestConfig.custom();
  requestConfigBuilder.setConnectTimeout(connectTimeout);
  requestConfigBuilder.setSocketTimeout(socketTimeout);
  RequestConfig requestConfig = requestConfigBuilder.build();

  HttpClientBuilder httpClientBuilder = HttpClientBuilder.create();
  httpClientBuilder.setDefaultRequestConfig(requestConfig);
  httpClientBuilder.setMaxConnPerRoute(maxConnPerRoute);
  httpClientBuilder.setMaxConnTotal(maxConnTotal);
  httpClientBuilder.setSSLSocketFactory(new     CustomSslConnectionSocketFactory());

  return new HttpComponentsClientHttpRequestFactory(httpClientBuilder.build());
}