使用 HttpEntity<List> 在 Spring RestTemplate 中删除

问题描述

我不知道为什么我的代码不起作用，我试过 Postman 并且工作正常:

I don't know why my code is not working, I've tried with Postman and works fine:

但是对于 RestTemplate，当它使用相同的端点时，我无法得到响应.......

But with RestTemplate I can´t get a response while it´s using the same endpoint... .

ResponseEntity<String> responseMS  = template.exchange(notificationRestService, HttpMethod.DELETE, new HttpEntity<NotificationRestDTO[]>(arrNotif), String.class);

我试过用 List 代替 Array[]

当我发出一个 PUT 请求时，它工作正常，但只有一个对象:

When i made a PUT request it´s works fine but with one object:

ResponseEntity<String> responseMS = template.exchange(notificationRestService, HttpMethod.PUT, new HttpEntity<NotificationRestDTO>(notificationDTO), String.class);

有什么帮助吗??谢谢！！

Any help?? Thanks!!

推荐答案

从评论中可以明显看出您期望它返回 400 Bad Request 响应.RestTemplate 会将这些视为客户端错误"，并且会抛出一个 HttpClientErrorException.

From the comments it became clear that you're expecting it to return a 400 Bad Request response. RestTemplate will see these as "client errors" and it will throw a HttpClientErrorException.

如果你想处理这样的情况，你应该捕获这个异常，例如:

If you want to handle cases like this, you should catch this exception, for example:

try {
    ResponseEntity<String> responseMS  = template.exchange(notificationRestService, HttpMethod.DELETE, new HttpEntity<NotificationRestDTO[]>(arrNotif), String.class);
} catch (HttpClientErrorException ex) {
    String message = ex.getResponseBodyAsString();
}

在这种情况下(因为您需要 String)，您可以使用 getResponseBodyAsString() 方法.

In this case (since you expect a String), you can use the getResponseBodyAsString() method.

ResponseEntity 将只包含在您的请求可以成功执行的情况下的数据(2xx 状态代码，如 200、204、...).所以，如果你只希望在请求不成功时返回一条消息，你实际上可以做评论中提到的 Mouad，你可以使用 RestTemplate 的 delete() 方法.

The ResponseEntity will only contain the data in case your request can be executed successfully (2xx status code, like 200, 204, ...). So, if you only expect a message to be returned if the request was not successfully, you can actually do what Mouad mentioned in the comments and you can use the delete() method of the RestTemplate.

这篇关于使用 HttpEntity<List> 在 Spring RestTemplate 中删除的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！