1、创建一个访问https的工具类

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package org.aaa.tool;<br>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）