java网络编程

package com.cctin.platform.wechatrss.utils; import java.io.BufferedReader; import java.io.IOException; import java.io.InputStream; import java.io.InputStreamReader; import java.io.OutputStream; import java.net.ConnectException; import java.net.URL; import javax.net.ssl.HttpsURLConnection; import javax.net.ssl.SSLContext; import javax.net.ssl.SSLSocketFactory; import javax.net.ssl.TrustManager; import org.apache.http.HttpEntity; import org.apache.http.HttpResponse; import org.apache.http.client.ClientProtocolException; import org.apache.http.client.HttpClient; import org.apache.http.client.methods.HttpPost; import org.apache.http.entity.StringEntity; import org.apache.http.impl.client.HttpClientBuilder; import org.apache.http.util.EntityUtils; /** * @author Administrator * http工具类 */ public class HttpClientUtil { /** * http post 提交 * @param url * @param params */ public static void httpPost(String url,String params){ //创建httpclient对象 HttpClient httpClient = HttpClientBuilder.create().build(); //创建POST请求方法 HttpPost httpPost = new HttpPost(url); //创建请求报文头 httpPost.addHeader("Content-Type", "text/plain; charset=UTF-8"); //创建请求数据对象 StringEntity entity = new StringEntity(params.toString(), "utf-8"); //post请求装载数据 httpPost.setEntity(entity); try { //执行http post请求 HttpResponse httpResponse=httpClient.execute(httpPost); //判断执行是否成功 if(httpResponse.getStatusLine().getStatusCode()==200){ HttpEntity httpEntity=httpResponse.getEntity(); String responseStr=EntityUtils.toString(httpEntity); System.out.println("responseStr_____:"+responseStr); } } catch (ClientProtocolException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } } /** * 发起https请求并获取结果 * @param requestUrl 请求地址 * @param requestMethod 请求方式（GET、POST） * @param outputStr 提交的数据 * @return JSONObject(通过JSONObject.get(key)的方式获取json对象的属性值) */ public static String httpSRequest(String requestUrl, String requestMethod, String outputStr) { //JSONObject jsonObject = null; StringBuffer buffer = new StringBuffer(); try { // 创建SSLContext对象，并使用我们指定的信任管理器初始化 TrustManager[] tm = { new SSlX509Manager() }; SSLContext sslContext = SSLContext.getInstance("SSL", "SunJSSE"); sslContext.init(null, tm, new java.security.SecureRandom()); // 从上述SSLContext对象中得到SSLSocketFactory对象 SSLSocketFactory ssf = sslContext.getSocketFactory(); URL url = new URL(requestUrl); HttpsURLConnection httpUrlConn = (HttpsURLConnection) url.openConnection(); httpUrlConn.setSSLSocketFactory(ssf); httpUrlConn.setDoOutput(true); httpUrlConn.setDoInput(true); httpUrlConn.setUseCaches(false); // 设置请求方式（GET/POST） httpUrlConn.setRequestMethod(requestMethod); if ("GET".equalsIgnoreCase(requestMethod)) httpUrlConn.connect(); // 当有数据需要提交时 if (null != outputStr) { OutputStream outputStream = httpUrlConn.getOutputStream(); // 注意编码格式，防止中文乱码 outputStream.write(outputStr.getBytes("UTF-8")); outputStream.close(); } // 将返回的输入流转换成字符串 InputStream inputStream = httpUrlConn.getInputStream(); InputStreamReader inputStreamReader = new InputStreamReader(inputStream, "utf-8"); BufferedReader bufferedReader = new BufferedReader(inputStreamReader); String str = null; while ((str = bufferedReader.readLine()) != null) { buffer.append(str); } bufferedReader.close(); inputStreamReader.close(); // 释放资源 inputStream.close(); inputStream = null; httpUrlConn.disconnect(); } catch (ConnectException ce) { ce.printStackTrace(); } catch (Exception e) { e.printStackTrace(); } return buffer.toString(); } }

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package com.cctin.platform.wechatrss.utils; import java.security.cert.CertificateException; import java.security.cert.X509Certificate; import javax.net.ssl.X509TrustManager; public class SSlX509Manager implements X509TrustManager{ @Override public void checkClientTrusted(X509Certificate[] chain, String authType) throws CertificateException { } @Override public void checkServerTrusted(X509Certificate[] chain, String authType) throws CertificateException { } @Override public X509Certificate[] getAcceptedIssuers() { return null; } }