Java Spring RestTemplate getForObject() 给出 401 未经授权的异常
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Spring RestTemplate getForObject() giving 401 unauthorized exception
提问by lsc
In my browser follwing rest API url is working and I can see XML results.
在我的浏览器中，rest API url 正在工作，我可以看到 XML 结果。
"http://V7846EKZZJ1OJAW486D66IS7GO24XKUZ@localhost:8090/prestashop/api/products/1"
I want to call this url from Java client and get results. For that I am using RestTemplate.
我想从 Java 客户端调用这个 url 并获得结果。为此，我正在使用 RestTemplate。
String result = restTemplate.getForObject("http://V7846EKZZJ1OJAW486D66IS7GO24XKUZ@localhost:8090/prestashop/api/products/1"
, String.class);
this is giving following error,
这是给出以下错误，
WARNING: GET request for http://V7846EKZZJ1OJAW486D66IS7GO24XKUZ@localhost:8090/prestashop/api/products/1 resulted in 401 (Unauthorized); invoking error handler
Disconnected from the target VM, address: '127.0.0.1:49533', transport: 'socket'
org.springframework.web.client.HttpClientErrorException: 401 Unauthorized
at org.springframework.web.client.DefaultResponseErrorHandler.handleError(DefaultResponseErrorHandler.java:88)
at org.springframework.web.client.RestTemplate.handleResponseError(RestTemplate.java:537)
Not sure why this is happening. Can't we call URL in form username@host/appplication with RestTemplate? Or is it incorrect the way I am calling this URL with RestTemplate?
不知道为什么会这样。我们不能用 RestTemplate 以 username@host/appplication 的形式调用 URL 吗？还是我使用 RestTemplate 调用此 URL 的方式不正确？
regards, -Lasith.
问候，-Lasith。
回答by Amar
I faced similar problem and solved it using resttemplate.exchangemethod. The steps are put your authentication details in RestRequestHeaderInfo which should be inside HttpEntity<MultiValueMap<String, String>>pass this entity into the exchange method like below:
我遇到了类似的问题并使用resttemplate.exchange方法解决了它。这些步骤将您的身份验证详细信息放在 RestRequestHeaderInfo 中，该信息应该在内部HttpEntity<MultiValueMap<String, String>>将此实体传递到如下所示的交换方法中：
response = restTemplate.exchange(url, HttpMethod.GET, request, Response.class);
If response is in json format like in my case, Response is the holder class for the corresponding data which will be populated by Hymanson library in my classpath: It worked.
如果响应是 json 格式，就像在我的情况下一样，响应是相应数据的持有者类，这些数据将由我的类路径中的 Hymanson 库填充：它有效。
