Connection pooling in java using HttpClient [closed]

I have spent recent days working on this so just want to share some “everyone-known” knowledges with you. First, as you are dealing with the same server, it is recommended to use a single HTTP client to execute your requests. With the help of PoolingHttpClientConnectionManager, your client can be used to execute multiple requests concurrently. … Read more

How to set large string inside HttpContent when using HttpClient?

I figured it out with the help of my friend. What you would want to do is avoid using FormUrlEncodedContent(), because it has restrictions on the size of the uri. Instead, you can do the following : var jsonString = JsonConvert.SerializeObject(post_parameters); var content = new StringContent(jsonString, Encoding.UTF8, “application/json”); Here, we don’t need to use HttpContent … Read more

HttpGet with HTTPS : SSLPeerUnverifiedException

Note: Do not do this in production code, use http instead, or the actual self signed public key as suggested above. On HttpClient 4.xx: import static org.junit.Assert.assertEquals; import java.security.KeyManagementException; import java.security.NoSuchAlgorithmException; import java.security.cert.X509Certificate; import javax.net.ssl.SSLContext; import javax.net.ssl.TrustManager; import javax.net.ssl.X509TrustManager; import org.apache.http.HttpResponse; import org.apache.http.client.methods.HttpGet; import org.apache.http.conn.scheme.Scheme; import org.apache.http.conn.ssl.SSLSocketFactory; import org.apache.http.impl.client.DefaultHttpClient; import org.junit.Test; public class HttpClientTrustingAllCertsTest { … Read more

How can I parse JSON string from HttpClient?

There are three ways that come to mind. Assuming the json is consistent and the structure of the response will not change frequently, I would use a tool like json2csharp or jsonutils to create c# classes. then call: {GeneratedClass} obj = JsonConvert.DeserializeObject<{GeneratedClass}>(result); This will give you a strongly typed object that you can use. You … Read more

WebView, add local .CSS file to an HTML page?

Seva Alekseyev is right, you should store CSS files in assets folder, but referring by file:///android_asset/filename.css URL doesn’t working for me. There is another solution: put CSS in assets folder, do your manipulation with HTML, but refer to CSS by relative path, and load HTML to WebView by loadDataWithBaseURL() method: webView.loadDataWithBaseURL(“file:///android_asset/”, htmlString, “text/html”, “utf-8”, null); … Read more

Content-Length header already present

As pointed out by igor.zh, this problem can occur if using Spring’s HttpComponentsMessageSender class. To be more precise though, this is only a problem if you are passing your own instance of HttpClient into the HttpComponentsMessageSender constructor – the issue is handled automatically otherwise. As of spring-ws 2.1.4, the HttpComponentsMessageSender.RemoveSoapHeadersInterceptor subclass that is used in … Read more

The current status of System.Net.Http vs. Microsoft.Net.Http

This has been for a long time and continues to be confusing. I have seen such messaging myself but as of right now, it appears System.Net.Http is the correct choice, at least for .NET on the Windows platform and has no external dependencies. For .NET Core, I have used Microsoft.Net.Http although it does require Microsoft.BCL. … Read more

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