Question

我正在使用HttpClient流畅的api编写验收测试并且遇到一些麻烦。

@When("^I submit delivery address and delivery time$")
public void I_submit_delivery_address_and_delivery_time() throws Throwable {

    Response response = Request
            .Post("http://localhost:9999/food2go/booking/placeOrder")
            .bodyForm(
                    param("deliveryAddressStreet1",
                            deliveryAddress.getStreet1()),
                    param("deliveryAddressStreet2",
                            deliveryAddress.getStreet2()),
                    param("deliveryTime", deliveryTime)).execute();
    content = response.returnContent();
    log.debug(content.toString());
}

当我使用post-forward策略时，此代码很有效，但是当我使用重定向时会抛出异常。

org.apache.http.client.HttpResponseException: Found

我想要的是获取重定向页面的内容。任何想法都值得欣赏，提前谢谢。

Answer 1

HTTP specification要求包含POST和PUT等方法的实体仅在人为干预后重定向。 HttpClient默认遵守此要求。

10.3 Redirection 3xx

   This class of status code indicates that further action needs to be
   taken by the user agent in order to fulfill the request.  The action
   required MAY be carried out by the user agent without interaction
   with the user if and only if the method used in the second request is
   GET or HEAD.

...

   If the 302 status code is received in response to a request other
   than GET or HEAD, the user agent MUST NOT automatically redirect the
   request unless it can be confirmed by the user, since this might
   change the conditions under which the request was issued.

如有必要，可以使用自定义重定向策略放宽对自动重定向的限制。

    DefaultHttpClient client = new DefaultHttpClient();
    client.setRedirectStrategy(new LaxRedirectStrategy());
    Executor exec = Executor.newInstance(client);
    String s = exec.execute(Request
            .Post("http://localhost:9999/food2go/booking/placeOrder")
            .bodyForm(...)).returnContent().asString();

Answer 2

这是针对apache的更新版本：

CloseableHttpClient httpClient = 
  HttpClientBuilder.create().setRedirectStrategy(new LaxRedirectStrategy())
.build();

如何通过httpClient流畅地处理重定向？

2 个答案: