Content-Length header already present

user_16476 0
Viewed 42889

I am using the Apache HttpClient (4.1) included in Android to execute a HttpPut. I have verified that I only have 1 content-length header. However, every time I send the request, I get a protocol exception about the Content-Length header already specified.

HttpClient client = new DefaultHttpClient();
putMethod = new HttpPut(url + encodedFileName);
putMethod.addHeader(..)  //<-once for each header
putMethod.setEntity(new ByteArrayEntity(data));
client.execute(putMethod);  //throws Exception

Caused by: org.apache.http.ProtocolException: Content-Length header already present at org.apache.http.protocol.RequestContent.process(RequestContent.java:70) at org.apache.http.protocol.BasicHttpProcessor.process(BasicHttpProcessor.java:290)

Any ideas?

httpclient android java
7 Answers

If you are adopting the XML configuration answer by John Rix, make sure to add a depends-on attribute to the httpClient bean so the RemoveSoapHeadersInterceptor interceptor is added to the ClientBuilder before the httpClient bean gets created. SOAP headers removal hasn't taken effect until I have done so.

<bean id="httpClient" factory-bean="httpClientBuilder" factory-method="build" depends-on="interceptedHttpClientBuilder"/>
user_73366110

@John Rix's answer This code helped solved the problem 

    private static class ContentLengthHeaderRemover implements HttpRequestInterceptor{
            @Override
            public void process(HttpRequest request, HttpContext context) throws HttpException, IOException {
                request.removeHeaders(HTTP.CONTENT_LEN);// fighting org.apache.http.protocol.RequestContent's ProtocolException("Content-Length header already present");
            }
        }
HttpClient client = HttpClients.custom()
                .addInterceptorFirst(new ContentLengthHeaderRemover())
                .build();
user_23190990
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