Java使用org.apache.http的包访问对方URL地址并发送数据(非OkHttp)

import com.alibaba.fastjson.JSONObject;
import org.apache.http.HttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.config.Registry;
import org.apache.http.config.RegistryBuilder;
import org.apache.http.conn.socket.ConnectionSocketFactory;
import org.apache.http.conn.ssl.SSLConnectionSocketFactory;
import org.apache.http.conn.ssl.SSLSocketFactory;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.impl.conn.PoolingHttpClientConnectionManager;
import org.apache.http.message.BasicHeader;
import org.apache.http.util.EntityUtils;

import javax.net.ssl.SSLContext;
import javax.net.ssl.TrustManager;
import javax.net.ssl.X509TrustManager;
import java.net.ConnectException;
import java.security.KeyManagementException;
import java.security.NoSuchAlgorithmException;
import java.security.cert.CertificateException;


public class NetworkUtils {
//发送Get请求
    public static JSONObject doGetByHttpClient(String url) throws ConnectException {
        System.out.println("url =" + url);

        try {
        //如果是https 用这种方式
            CloseableHttpClient httpClient = null;
            if (url.toLowerCase().startsWith("https://")) {
                System.out.println("use ssl");
                httpClient = getHttpsClient();
            } else {
            //如果是http 用这种方式
                System.out.println("use nonssl");
                httpClient = HttpClients.createDefault();
            }

            HttpGet httpGet = new HttpGet(url);
            httpGet.addHeader("Content-Type", "application/json; charset=UTF-8");

            HttpResponse response = httpClient.execute(httpGet);
            int statusCode = response.getStatusLine().getStatusCode();
            if (statusCode != 200) {
                throw new ConnectException("连接服务器失败！");
            }
            String s = EntityUtils.toString(response.getEntity());
            JSONObject json = JSONObject.parseObject(s);
            return json;
        } catch (Exception e) {
            e.printStackTrace();
            System.out.println(" ===== doPostByHttpClient() ERROR ===== ");
            throw new ConnectException(e.getMessage());
        } finally {
            System.clearProperty("javax.net.debug");
        }

    }

    //发送Post请求
    public static JSONObject doPostByHttpClient(String url, String data) throws ConnectException {
        System.out.println("url =" + url);
        System.out.println("data =" + data);
        try {
        //如果是https 用这种方式
            CloseableHttpClient httpClient = null;
            if (url.toLowerCase().startsWith("https://")) {
                System.out.println("use ssl");
                httpClient = getHttpsClient();
            } else {
             //如果是http 用这种方式
                System.out.println("use nonssl");
                httpClient = HttpClients.createDefault();
            }
            HttpPost httpPost = new HttpPost(url);
            //添加响应头
            httpPost.addHeader("Content-Type", "application/json; charset=UTF-8");
            if(data != null){
                StringEntity se = new StringEntity(data, "UTF-8");
                se.setContentType("text/json");
                se.setContentEncoding(new BasicHeader("Content-Type", "application/json; charset=UTF-8"));
                httpPost.setEntity(se);
            }
            HttpResponse response = httpClient.execute(httpPost);
            int statusCode = response.getStatusLine().getStatusCode();
            if (statusCode != 200) {
                throw new ConnectException("连接服务器失败！");
            }
            String s = EntityUtils.toString(response.getEntity());
            JSONObject json = JSONObject.parseObject(s);
            return json;
        } catch (Exception e) {
            e.printStackTrace();
            System.out.println(" ===== doPostByHttpClient() ERROR ===== ");
            throw new ConnectException(e.getMessage());
        } finally {
            System.clearProperty("javax.net.debug");
        }
    }

    public static CloseableHttpClient getHttpsClient() throws KeyManagementException, NoSuchAlgorithmException {
        //采用绕过验证的方式处理https请求
        SSLContext sslcontext = createIgnoreVerifySSL();

        //设置协议http和https对应的处理socket链接工厂的对象
        Registry<ConnectionSocketFactory> socketFactoryRegistry = RegistryBuilder.<ConnectionSocketFactory>create()
                .register("https", new SSLConnectionSocketFactory(sslcontext, SSLSocketFactory.ALLOW_ALL_HOSTNAME_VERIFIER))
                .build();
        PoolingHttpClientConnectionManager connManager = new PoolingHttpClientConnectionManager(socketFactoryRegistry);

        //创建自定义的httpclient对象
        CloseableHttpClient client = HttpClients.custom().setConnectionManager(connManager).build();
        return client;
    }

    public static SSLContext createIgnoreVerifySSL() throws NoSuchAlgorithmException, KeyManagementException {
        SSLContext sslContext = SSLContext.getInstance("TLS");
        X509TrustManager trustManager = new X509TrustManager() {
            @Override
            public void checkClientTrusted(
                    java.security.cert.X509Certificate[] paramArrayOfX509Certificate,
                    String paramString) throws CertificateException {
            }

            @Override
            public void checkServerTrusted(
                    java.security.cert.X509Certificate[] paramArrayOfX509Certificate,
                    String paramString) throws CertificateException {
            }

            @Override
            public java.security.cert.X509Certificate[] getAcceptedIssuers() {
                return null;
            }
        };
        sslContext.init(null, new TrustManager[] { trustManager }, null);
        return sslContext;
    }

    
}