urlconnection android

getInputStream), the program will secretly (implicitly) perform the connection。 Once the connection is available, access to resources such as execution getInputStream () and, for Httpurlconnect, Conn. Getresponsecode () ==200 to determine if the server returned the correct answer code to indicate that the request was accepted. In URLConnection, there is a domain Boolean connected, and a value of TRUE indicates that a connection has been established t

Use URL and urlconnection (multi-thread download) 17.2.3 use URL and urlconnection The URL (Uniform Resource Locator) object represents a unified resource locator, which is a pointer to the Internet "resource. A resource can be a simple file or directory, or a reference to a more complex object, such as a query of a database or search engine. Generally, a URL consists of a protocol name, host, po

Network Programming series in Android (1): URLConnection The URL (Uniform Resource Locator) object represents a unified Resource Locator, which is a pointer to Internet resources. The URL consists of the protocol name, host, port, and resource Path Components: protocol://host:port/path For example, http://kan.sogou.com/dianying/#a urladdress.URL provides multiple constructor methods for creating URL obj

Fos=getbasecontext (). Openfileoutput (Filepath,mode_private); Bufferedoutputstream bos=new bufferedoutputstream (FOS); Byte[]buff=new byte[32];int Hasread=0;while ((Hasread=bis.read (Buff)) >0) {bos.write (buff,0,hasread);} Bos.close (); Fos.close (); Bis.close (); Is.close (); Handler.sendemptymessage (SAVE_SUCC);} catch (Exception ex) {handler.sendemptymessage (save_error); Ex.printstacktrace ();}}}. Start ();} @Overridepublic void OnClick (View v) {//TODO auto-generated method Stubswitch

)); String str; while ((Str=br.readline ())!=null) { response.append (str); } Br.close (); Is.close ();return response.tostring ();Two. HttpGet PackageSource: Static Publicstring HttpGet (string Url,map headers) {Try { //Open ConnectionURLConnection connection=Newurl (url). OpenConnection (); //set the request header if(headers!=NULL) {object[] objects=Headers.entryset (). ToArray (); for(Object o:ob

Network Programming (2) -- connect the parent class URLConnection and urlconnectionIn network programming (1), we learned that if you want to access resources of other hosts, you need to know the URL of the resource. If we know the URL, how can we access resources on the host? This article focuses on the basic parent class URLConnectiion of Android Network Programming in Java, which uses URLs to access host

URLConnection call interface, urlconnection call Preface: 　The project is a java web, jdk1.4, weblogic 7, and other. net system, using the interface developed by wcf. The other party provides the interface url address and description for calling in post mode, and directly returns the json array (data in json array format) without passing parameters) There are many methods to call interfaces, such as framewo

The openconnection method of the URL returns a urlconnection, which indicates the communication connection between the application and the URL. The program can send a request to the URL through its instance to read the resources referenced by the URL. The following is a simple example: Activity: Package COM. home. urlconnection; import Java. io. ioexception; import Java. io. inputstream; import java.net. ht

In Java network programming let us get a network address resources, we often use the URL Uniform Resource Locator (uniform Resource Locator), URL class Java.net.URL. The URL is defined as follows: [Scheme :] scheme-specific-part[ # Fragment] where the square brackets [...] are used to describe optional components, characters : and # represent themselves. View the API for more information. A, URL The main methods are as follows: 1. Construction method The URL (string spec) creates a URL object

in front of network programming (1) We learned that if you want to access the resources of other hosts, then you need to know the URL of the resource. So if we know the URL, how do we go toaccess the resources on its host? This articlemainly about the Java language Programming Android network programming of the most basic parent class urlconnectiion, the class is the use of URLs to achieve host resource access, each subclass of its characteristics are

URLs and URLConnection classesURLs in the network (Uniform Resource Locator) are abbreviations for Uniform Resource locators. It represents the address of a resource on the Internet. Through the URL we can access various network resources on the Internet, such as the most common www,ftp site. URLs can be thought of as "pointers" to Internet resources, which can be used to obtain information about Internet resources, including information about the Inp

Java Tour (34)--custom server, urlconnection, Regular expression feature, match, cut, replace, fetch, web crawler We then say network programming, TCP I. Customizing the service side We directly write a server, let the local to connect, you can see what kind of effect Packagecom. LGL. Socket;Import Java. IO. IOException;Import Java. IO. PrintWriter;Import Java. NET. ServerSocket;Import Java. NET. Socket;public class Browser

Java URL and URLConnection The URL class encapsulates the URL address into an object and provides a method to parse the URL address, such as obtaining the uri, host, and port. URLConnection is a combination of URL objects and Socket connections, making it easier to obtain the connection Socket that initiates a URL request.1. URL import java.net.MalformedURLException;import java.net.URL;public class URLDemo

Detailed description of urlconnection parameters in JDK From: http://www.blogjava.net/supercrsky/articles/247449.htmlFor the issue of connecting servlet with urlconnection in JDK, although there are some problems on the internet, it only illustrates one or several problems, which are solved by FAQ and scattered, now I will summarize the usage experience of this class in the project as follows: 1:> URL reque

/newlogo.pngSystem.out.println (Url.gethost ());//www.runoob.comSystem.out.println (Url.getpath ());///wp-content/themes/runoob/assets/img/newlogo.pngSystem.out.println (Url.getport ());//-1System.out.println (Url.getprotocol ());//httpSystem.out.println (Url.getref ());//nullSystem.out.println (Url.getuserinfo ());//nullSystem.out.println (Url.tostring ());//http://www.runoob.com/wp-content/themes/runoob/assets/img/newlogo.pngURLConnection class **********************The

For the issue of connecting Servlet with URLConnection in JDK, although there are some problems on the internet, it only illustrates one or several problems, which are solved by FAQ and scattered, now I will summarize the usage experience of this class in the project as follows: 1:> URL request category: There are two types: GET and POST requests. The difference between the two is: A: get requests can get static pages, or put parameters after URL stri

Normal download and URLConnection 6 (64), urlconnection64 Normal download When the service uses breakpoint download, the response information is 206. UrlConnection-HttpurlConnection. -Obtain the urlconnection instance through URL. Normal download example Package cn. demo; import java. io. fileOutputStream; import java. io. inputStream; import java. io. outputStre

a inputstream that is used to read from the connection. /* * Principle: * OpenConnection () * Returns a URLConnection object that represents the connection to the remote object referenced by the URL. * URLConnection conn = url.openconnection (); * SYSTEM.OUT.PRINTLN (connection); * The bottom of the package is the HTTP parsing method of the URL, this object is the Java built-in can resolve the specific pro

For the issue of connecting servlet with urlconnection in JDK, although there are some problems on the internet, it only illustrates one or several problems, which are solved by FAQ and scattered, now I will summarize the usage experience of this class in the project as follows:1:> URL request category:There are two types: Get and post requests. The difference between the two is:A: GET requests can get static pages, or put parameters after URL strings

For the JDK in the URLConnection connection servlet problem, although the Internet has been involved, but only to explain a certain or a few problems, is the way to solve the FAQ, and relatively fragmented, now on the use of this class I in the project experience to do the following summary:1:> the category of the URL request:Divided into two categories, get and post requests. The difference between the two is:A:) Get request can get a static page, or