简介: Java的URL与URLConnection技术深度解析 一、引言 在Java中,URL(Uniform Resource Locator,统一资源定位符)和URLConnection是用于处理网络资源的重要类。它们使得Java程序能够轻松地从网络上获取或发送数据,从而实现对远程资源的访问和操作。本文将详细探讨Java中URL和URLConnection的工作原理、使用方法以及在实际应用中...
packagecom.urlconnection;importjava.io.IOException;importjava.io.InputStream;importjava.io.InputStreamReader;importjava.io.OutputStreamWriter;importjava.io.Writer;importjava.net.URL;importjava.net.URLConnection;//模拟表单提交处理publicclassFormPoster {privateURL url;privateQueryString query=newQueryString()...
Java网络编程(URL&URLConnection) 1packagecn.itcast.net.p2.ie_server;23importjava.io.IOException;4importjava.io.InputStream;5importjava.net.URL;6importjava.net.URLConnection;78publicclassURLDemo {910/**11*@paramargs12*@throwsIOException13*/14publicstaticvoidmain(String[] args)throwsIOException {15...
net.HttpURLConnection; import java.net.URL; import java.net.URLConnection; import java.net.URLEncoder; import java.util.List; import java.util.Map; public class HttpRequestUtil { public static String sendGet(String url, String param) { String result = ""; BufferedReader in = null; try {...
URLConnection是应用程序和Url之间通信的类的超类。 这类对象可以读取和写入Url所指向的资源。 从URL创建其对象到读写URL指向的资源,进行了以下步骤: 通过URL调用openConnection()来创建对象 设置一般参数和请求属性 connection()来实际连接到远程对象 若是远程对象可用,则可以访问远程对象的Header( 标头)和content(内容...
URLConnection类 URLConnection是封装访问远程网络资源一般方法的类,通过它可以建立与远程服务器的连接,检查远程资源的一些属性 URLConnection类 取得URL的信息 import java.net.URL; import java.net.URLConnection; public class Hello { public static void main(String[] args) throws Exception{ ...
java.lang.Object java.net.URLConnection java.net.HttpURLConnection javax.net.ssl.HttpsURLConnection public abstract classHttpsURLConnectionextendsHttpURLConnection HttpsURLConnection扩展HttpURLConnection,支持https特定功能。 有关https规范的更多详细信息,请参见http://www.w3.org/pub/WWW/Protocols/和RFC 2818...
The abstract class URLConnection is the superclass of all classes that represent a communications link between the application and a URL. C# Copy [Android.Runtime.Register("java/net/URLConnection", DoNotGenerateAcw=true)] public abstract class URLConnection : Java.Lang.Object Inheritance Object ...
text/java 复制 {@code HttpURLConnection urlConnection = (HttpURLConnection) url.openConnection(); try { InputStream in = new BufferedInputStream(urlConnection.getInputStream()); if (!url.getHost().equals(urlConnection.getURL().getHost())) { // we were redirected! Kick the user out to...
Class URLConnection java.lang.Object java.net.URLConnection 已知直接子类: HttpURLConnection, JarURLConnection public abstract class URLConnection extends Object 抽象类URLConnection是表示应用程序和URL之间的通信链接的所有类的超类。 此类的实例可用于读取和写入URL引用的资源。 通常,创建与URL的连接是一个...