对get post请求的封装
HttpUtil.java
package com.dhc.task.wx.util; import java.io.BufferedReader; import java.io.IOException; import java.io.InputStream; import java.io.InputStreamReader; import java.io.OutputStream; import java.net.URL; import java.security.KeyManagementException; import java.security.NoSuchAlgorithmException; import java.security.NoSuchProviderException; import javax.net.ssl.HttpsURLConnection; import javax.net.ssl.SSLContext; import javax.net.ssl.SSLSocketFactory; import javax.net.ssl.TrustManager; public class HttpUtil { /** * 获取一个http/https连接 * @param urlStr * @param method * @return * @throws NoSuchAlgorithmException * @throws NoSuchProviderException * @throws IOException * @throws KeyManagementException */ private static HttpsURLConnection getHttpConnection(String urlStr, String method) throws NoSuchAlgorithmException, NoSuchProviderException, IOException, KeyManagementException { URL url = new URL(urlStr); HttpsURLConnection httpUrlConn = (HttpsURLConnection) url.openConnection(); // 创建SSLContext对象,并使用我们指定的信任管理器初始化 TrustManager[] tm = { new MyX509TrustManager() }; 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(); httpUrlConn.setSSLSocketFactory(ssf); httpUrlConn.setDoOutput(true); httpUrlConn.setDoInput(true); // 设置请求方式(GET/POST) httpUrlConn.setRequestMethod(method); return httpUrlConn; } /** * http/https get请求 * @param urlStr * @return * @throws Exception */ public static String get(String urlStr) throws Exception { HttpsURLConnection httpUrlConn = getHttpConnection(urlStr, "GET"); // 取得输入流 InputStream inputStream = httpUrlConn.getInputStream(); InputStreamReader inputStreamReader = new InputStreamReader(inputStream, "utf-8"); BufferedReader bufferedReader = new BufferedReader(inputStreamReader); // 读取响应内容 StringBuffer buffer = new StringBuffer(); String str = null; while ((str = bufferedReader.readLine()) != null) { buffer.append(str); } bufferedReader.close(); inputStreamReader.close(); // 释放资源 inputStream.close(); httpUrlConn.disconnect(); return buffer.toString(); } /** * http/https post请求 返回响应结果 * @param urlStr * @param body * @return * @throws IOException * @throws NoSuchAlgorithmException * @throws NoSuchProviderException * @throws KeyManagementException */ public static String Post(String urlStr, String body) throws IOException, NoSuchAlgorithmException, NoSuchProviderException, KeyManagementException { HttpsURLConnection httpUrlConn = getHttpConnection(urlStr, "POST");; httpUrlConn.setRequestProperty("Content-Type", "application/x-www-form-urlencoded"); httpUrlConn.connect(); OutputStream os = httpUrlConn.getOutputStream(); os.write(body.getBytes("UTF-8")); os.close(); // 取得输入流 InputStream inputStream = httpUrlConn.getInputStream(); InputStreamReader inputStreamReader = new InputStreamReader(inputStream, "utf-8"); BufferedReader bufferedReader = new BufferedReader(inputStreamReader); // 读取响应内容 StringBuffer buffer = new StringBuffer(); String str = null; while ((str = bufferedReader.readLine()) != null) { buffer.append(str); } bufferedReader.close(); inputStreamReader.close(); // 释放资源 inputStream.close(); httpUrlConn.disconnect(); return buffer.toString(); } }
MyX509TrustManager.java
package com.dhc.task.wx.util; import java.security.cert.CertificateException; import java.security.cert.X509Certificate; import javax.net.ssl.X509TrustManager; /** * 类名: MyX509TrustManager </br> * 描述: 信任管理器 </br> */ public class MyX509TrustManager implements X509TrustManager { // 检查客户端证书 public void checkClientTrusted(X509Certificate[] chain, String authType) throws CertificateException { } // 检查服务器端证书 public void checkServerTrusted(X509Certificate[] chain, String authType) throws CertificateException { } // 返回受信任的X509证书数组 public X509Certificate[] getAcceptedIssuers() { return null; } }
注:参考网上博客+个人修改 可以发送https http的get post请求,接收到返回的body
本文来自博客园,作者:一支小白,转载请注明原文链接:https://www.cnblogs.com/startnow/p/7676491.html