Spring RestTem板在从Twitter获取数据时提供401所需的授权

Question

我正在尝试使用Spring RestTemboard获取Twitter推文。我的代码如下：

    public static void main(String[] args) {

    RestTemplate restTemplate = new RestTemplate();

    org.springframework.http.HttpHeaders httpHeaders = new org.springframework.http.HttpHeaders();

    String url = "https://api.twitter.com/1.1/search/tweets.json q=java";        
    String headerName = "Authorization";
    String headerValue = OAUTH_PARAMETERS
    httpHeaders.add(headerName, headerValue);
    httpHeaders.add("Content-Type", "application/json");
    HttpEntity<String> requestEntity = new HttpEntity<>("Headers", httpHeaders);
    System.out.println(">>>>>>>" + restTemplate.exchange(url, HttpMethod.GET, requestEntity, String.class).getBody());
}

我遇到以下错误：

异常线程"main"org.springframework.web.client.HttpClientError异常： 401授权需要在org.springframework.web.client.DefaultResorseErrorHandler.handle错误（DefaultResorseErrorHandler.java:91）在org.springframework.web.client.RestTemplate.handle响应（RestTemplate.java:641）在org.springframework.web.client.RestTemplate.do在org.springframework.web.client.执行（RestTemplate.java:597）RestTemplate.execute（RestTemplate.java:557）org.springframework.web.client.RestTemplate.exchange（RestTemplate.java:475）com.lftechnology.amlf.screening.service.impl.BalanceMediaSearchResultServiceImpl.main（BalanceMediaSearchResultServiceImpl.java:202）

Answer 1

看起来您在标题中设置了错误的参数。试试这个：

httpHeaders.set("Authorization","Bearer " + accessToken);

请注意，Bearer后面的空格很重要。