这篇文章主要给大家介绍java利用原始httpUrlConnection发送post数据，设计到httpUrlConnection类的相关知识，感兴趣的朋友跟着小编一起学习吧
URLConnection是个抽象类，它有两个直接子类分别是HttpURLConnection和JarURLConnection。另外一个重要的类是URL，通常URL可以通过传给构造器一个String类型的参数来生成一个指向特定地址的URL实例。
每个 HttpURLConnection 实例都可用于生成单个请求，但是其他实例可以透明地共享连接到 HTTP 服务器的基础网络。请求后在 HttpURLConnection 的 InputStream 或 OutputStream 上调用 close() 方法可以释放与此实例关联的网络资源，但对共享的持久连接没有任何影响。如果在调用 disconnect() 时持久连接空闲，则可能关闭基础套接字。
package com.newflypig.demo; /** * 使用jdk自带的HttpURLConnection向URL发送POST请求并输出响应结果 * 参数使用流传递，并且硬编码为字符串"name=XXX"的格式 */ import java.io.BufferedReader; import java.io.DataOutputStream; import java.io.InputStreamReader; import java.net.HttpURLConnection; import java.net.URL; import java.net.URLEncoder; public class SendPostDemo { public static void main(String[] args) throws Exception{ String urlPath = new String( "" ); //String urlPath = new String("丁丁".getBytes("UTF-8")); String param= "name=" +URLEncoder.encode( "丁丁" , "UTF-8" ); //建立连接 URL url= new URL(urlPath); HttpURLConnection httpConn=(HttpURLConnection)url.openConnection(); //设置参数 httpConn.setDoOutput( true ); //需要输出 httpConn.setDoInput( true ); //需要输入 httpConn.setUseCaches( false ); //不允许缓存 httpConn.setRequestMethod( "POST" ); //设置POST方式连接 //设置请求属性 httpConn.setRequestProperty( "Content-Type" , "application/x-www-form-urlencoded" ); httpConn.setRequestProperty( "Connection" , "Keep-Alive" ); // 维持长连接 httpConn.setRequestProperty( "Charset" , "UTF-8" ); //连接,也可以不用明文connect，使用下面的httpConn.getOutputStream()会自动connect httpConn.connect(); //建立输入流，向指向的URL传入参数 DataOutputStream dos= new DataOutputStream(httpConn.getOutputStream()); dos.writeBytes(param); dos.flush(); dos.close(); //获得响应状态 int resultCode=httpConn.getResponseCode(); if (HttpURLConnection.HTTP_OK==resultCode){ StringBuffer sb= new StringBuffer(); String readLine= new String(); BufferedReader responseReader= new BufferedReader( new InputStreamReader(httpConn.getInputStream(), "UTF-8" )); while ((readLine=responseReader.readLine())!= null ){ sb.append(readLine).append( "\n" ); } responseReader.close(); System.out.println(sb.toString()); } } }
JAVA使用HttpURLConnection发送POST数据是依靠OutputStream流的形式发送
具体编码过程中，参数是以字符串“name=XXX”这种形式发送
http请求
//说明：此处需引用httpclient、httpcore、commons-logging三个jar包
import java.io.BufferedReader;
import java.io.IOException; import java.io.InputStream; import java.io.InputStreamReader; import java.util.*; import java.security.MessageDigest; import org.apache.http.HttpEntity; import org.apache.http.HttpResponse; import org.apache.http.client.HttpClient; import org.apache.http.client.methods.HttpPost; import org.apache.http.client.methods.HttpGet; import org.apache.http.client.entity.UrlEncodedFormEntity; import org.apache.http.impl.client.DefaultHttpClient; import org.apache.http.message.BasicNameValuePair; import org.apache.http.*; import javax.crypto.SecretKey; import javax.crypto.spec.DESKeySpec; import javax.crypto.spec.IvParameterSpec; import javax.crypto.SecretKeyFactory; import javax.crypto.Cipher;public static void main(String[] args) {
String url="http://xxx.com/api/MsgSend.asmx/SendMes";List<NameValuePair> nvps = new ArrayList<NameValuePair>();
nvps.add(new BasicNameValuePair("userCode", "用户名")); nvps.add(new BasicNameValuePair("userPass", "密码")); nvps.add(new BasicNameValuePair("DesNo", "手机号")); nvps.add(new BasicNameValuePair("Msg", "短信内容【签名】")); nvps.add(new BasicNameValuePair("Channel", "通道号")); String post=httpPost(url,nvps); //post请求String getparam="userCode=用户名&userPass=密码&DesNo=手机号&Msg=短信内容【签名】&Channel=通道号";
String result=httpGet(url,getparam); //get请求 }public static String httpPost(String url,List<NameValuePair> params) {
String result = ""; try { HttpClient httpclient = new DefaultHttpClient(); HttpPost httpPost = new HttpPost(url); httpPost.setEntity(new UrlEncodedFormEntity(params, "UTF-8")); HttpResponse response = httpclient.execute(httpPost); HttpEntity entity = response.getEntity(); if (entity != null) { InputStream instreams = entity.getContent(); result = convertStreamToString(instreams); System.out.println(result); } } catch (Exception e) { } return result; } public static String httpGet(String url,String params){ String result=""; try{ HttpClient client=new DefaultHttpClient(); if(params!=""){ url=url+"?"+params; } HttpGet httpget=new HttpGet(url); HttpResponse response=client.execute(httpget); HttpEntity entity=response.getEntity(); if (entity != null) { InputStream instreams = entity.getContent(); result = convertStreamToString(instreams); System.out.println(result); } }catch(Exception e){} return result; } public static String convertStreamToString(InputStream is) { BufferedReader reader = new BufferedReader(new InputStreamReader(is)); StringBuilder sb = new StringBuilder(); String line = null; try { while ((line = reader.readLine()) != null) { sb.append(line + "\n"); } } catch (IOException e) { e.printStackTrace(); } finally { try { is.close(); } catch (IOException e) { e.printStackTrace(); } } return sb.toString(); }
webservice请求
public static void main(String[] args) {
org.tempuri.MsgSend service = new org.tempuri.MsgSend(); org.tempuri.MsgSendSoap port = service.getMsgSendSoap(); String result= port.sendMes("用户名","密码","手机号","短信内容【签名】","通道号"); System.out.println(result); }