How to Retrieve HTTP Status Code from org.apache.http.HttpResponse in Java?

Question

How can I get the HTTP status code from org.apache.http.HttpResponse in my Java application? Is there a function that directly returns this as an integer or String?

HttpResponse response; 
int statusCode = response.getStatusLine().getStatusCode();
String statusMessage = response.getStatusLine().getReasonPhrase();

Answer

To fetch the HTTP status code from the `org.apache.http.HttpResponse` class in Java, you can utilize the `getStatusLine()` method, which provides access to the status line of the response, encompassing both the status code and the reason phrase.

HttpResponse response; 
int statusCode = response.getStatusLine().getStatusCode(); 
String statusMessage = response.getStatusLine().getReasonPhrase(); 
System.out.println("HTTP Status Code: " + statusCode);
System.out.println("Status Message: " + statusMessage);

Causes

  • The method `toString()` provides a verbose representation of the HTTP response, but it's inefficient for simply retrieving the status code.
  • Developers may overlook more straightforward methods that directly yield the status code.

Solutions

  • Use `getStatusLine().getStatusCode()` to directly retrieve the status code as an integer.
  • Alternatively, use `getStatusLine().getReasonPhrase()` to get a string representation of the status message.

Common Mistakes

Mistake: Using the toString() method to extract the status code, which may lead to performance issues.

Solution: Utilize the designated getter methods like getStatusLine() for better performance.

Mistake: Assuming the status code could be obtained directly from the HttpResponse object without accessing the StatusLine.

Solution: Always retrieve the status code through getStatusLine().getStatusCode().

Helpers

  • org.apache.http.HttpResponse
  • HTTP status code Java
  • get HTTP code Java
  • HttpResponse getStatusLine
  • retrieve HTTP status code Java

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