1、创建一个访问https的工具类

package org.aaa.tool;
import java.io.File;
import java.io.IOException;
import java.net.URLEncoder;
import java.security.KeyManagementException;
import java.security.KeyStoreException;
import java.security.NoSuchAlgorithmException;
import java.security.cert.CertificateException;
import java.security.cert.X509Certificate;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import java.util.Set;

import javax.net.ssl.SSLContext;

import org.apache.commons.lang3.StringUtils;
import org.apache.http.HttpEntity;
import org.apache.http.NameValuePair;
import org.apache.http.client.config.RequestConfig;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.conn.ssl.SSLConnectionSocketFactory;
import org.apache.http.entity.ContentType;
import org.apache.http.entity.mime.HttpMultipartMode;
import org.apache.http.entity.mime.MultipartEntityBuilder;
import org.apache.http.entity.mime.content.FileBody;
import org.apache.http.entity.mime.content.StringBody;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.message.BasicNameValuePair;
import org.apache.http.ssl.SSLContextBuilder;
import org.apache.http.ssl.TrustStrategy;
import org.apache.http.util.EntityUtils;
import org.apache.log4j.Logger;
 

import com.alibaba.fastjson.JSONObject;

public class HttpClientUtil {
	private static Logger logger = Logger.getLogger(HttpClientUtil.class);
	private static final int TIME_OUT = 120000;
	
	
	public static CloseableHttpClient createSSLClientDefault(){
		try {
		             SSLContext sslContext = new SSLContextBuilder().loadTrustMaterial(null, new TrustStrategy() {
		                 //信任所有
		                 public boolean isTrusted(X509Certificate[] chain,
		                                 String authType) throws CertificateException {
		                     return true;
		                 }
		             }).build();
		             SSLConnectionSocketFactory sslsf = new SSLConnectionSocketFactory(sslContext);
		             return HttpClients.custom().setSSLSocketFactory(sslsf).build();
		         } catch (KeyManagementException e) {
		             e.printStackTrace();
		         } catch (NoSuchAlgorithmException e) {
		             e.printStackTrace();
		         } catch (KeyStoreException e) {
		             e.printStackTrace();
		         }
		         return  HttpClients.createDefault();
		}
 }

　　

2测试

1 CloseableHttpClient httpClient = HttpClientUtil.createSSLClientDefault();
2 HttpGet get = new HttpGet();
3 get.setURI(new URI("你的https://地址"));
4 httpClient.execute(get）