apache-httpclient-4.x
org.apache.http.ProtocolException: Target host is not specified
The error message is kind of misleading. You’ve provided a value that does not represent a complete URI request = new HttpGet(“trib.me/1lBFzSi”); It’s missing a protocol. Simply provide a complete URI request = new HttpGet(“http://trib.me/1lBFzSi”);
java.lang.NoSuchFieldError: org.apache.http.message.BasicLineFormatter.INSTANCE from Mashape Unirest in Java application
The only plausible explanation to this problem is there is an older version of HttpCore on the classpath (unless you also want to consider a possibility of green men from Mars messing with your computer remotely from a flying saucer). You can add this snippet to your code to find out what jar the class … Read more
How do I properly import HttpClient from org.apache on Android using gradle build file?
I think the httpclient library doesn’t include the mime parts, those are in httpmime. This is a transitive dependency of httpclient, but as that is ignored, it won’t be taken into account. Try adding this dependency: compile “org.apache.httpcomponents:httpmime:4.2.3”
How do I use an SSL client certificate with Apache HttpClient?
I think the main difference is that in java, you usually put the key and the certificate to a key store and use it from there. Like you mention often people do want to use a separate library for it, like mentioned httpcomponents client (just like you’re using requests library in your python example). Here’s … Read more
HttpClient.getParams() deprecated. What should I use instead?
You can use an URIBuilder object URIBuilder builder = new URIBuilder(“http://example.com/”); builder.setParameter(“var1”, “value1”).setParameter(“var2”, “value2”); HttpGet request = new HttpGet(builder.build()); // get back the url parameters List<NameValuePair> params = builder.getQueryParams(); I think you are a bit confused about the getParams() method from the client or HttpMethod, getParams() does not return the URL parameters or something like … Read more
HttpClient get status code [duplicate]
EDIT: Try with: HttpResponse httpResp = client.execute(response); int code = httpResp.getStatusLine().getStatusCode(); The HttpStatus should be 200 ( HttpStatus.SC_OK ) (I’ve read too fast the problem!) Try with: GetMethod getMethod = new GetMethod(“http://www.example.com”); int res = client.executeMethod(getMethod); This should do the trick!
How do I save a file downloaded with HttpClient into a specific folder
InputStream is = entity.getContent(); String filePath = “sample.txt”; FileOutputStream fos = new FileOutputStream(new File(filePath)); int inByte; while((inByte = is.read()) != -1) fos.write(inByte); is.close(); fos.close(); EDIT: you can also use BufferedOutputStream and BufferedInputStream for faster download: BufferedInputStream bis = new BufferedInputStream(entity.getContent()); String filePath = “sample.txt”; BufferedOutputStream bos = new BufferedOutputStream(new FileOutputStream(new File(filePath))); int inByte; while((inByte = … Read more
RestTemplate vs Apache Http Client for production code in spring project
RestTemplate and HttpClient don’t operate at the same abstraction level. HttpClient is a general-purpose library to communicate using HTTP, whereas RestTemplate is a higher-level abstraction, dealing with JSON/XML transformation of entities, etc. RestTemplate delegates to a ClientHttpRequestFactory, and one of the implementations of this interface uses Apache’s HttpClient. So, if the goal is to communicate … Read more
What is the difference between the setConnectionTimeout , setSoTimeout and “http.connection-manager.timeout” in apache HttpClient API
At the lowest level HTTP is TCP socket. So when you request a URL and get a response, at lower level, a client Socket is created which establishes connection to the remote Server Socket, sends some data and receives response. setConnectionTimeout : Client tries to connect to the server. This denotes the time elapsed before … Read more