SpringBoot實現訪問https(http)地址

import org.apache.http.HttpEntity;
import org.apache.http.NameValuePair;
import org.apache.http.client.ClientProtocolException;
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.config.Registry;
import org.apache.http.config.RegistryBuilder;
import org.apache.http.conn.socket.ConnectionSocketFactory;
import org.apache.http.conn.socket.PlainConnectionSocketFactory;
import org.apache.http.conn.ssl.SSLConnectionSocketFactory;
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.BasicNameValuePair;
import org.apache.http.util.EntityUtils;
import org.springframework.stereotype.Component;

import javax.net.ssl.SSLContext;
import javax.net.ssl.TrustManager;
import javax.net.ssl.X509TrustManager;
import java.io.IOException;
import java.security.KeyManagementException;
import java.security.NoSuchAlgorithmException;
import java.security.cert.CertificateException;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;

/**
 * Author: Pagegle李義根
 * Date: 2020/2/22 21:55
 * Content:
 */
@Component
public class HttpUtil {
    /**
     * 繞過驗證
     *
     * @return
     * @throws NoSuchAlgorithmException
     * @throws KeyManagementException
     */
    public static SSLContext createIgnoreVerifySSL() throws NoSuchAlgorithmException, KeyManagementException {
        SSLContext sc = SSLContext.getInstance("SSLv3");

        // 實現一個X509TrustManager接口，用於繞過驗證，不用修改裏面的方法
        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;
            }
        };

        sc.init(null, new TrustManager[] { trustManager }, null);
        return sc;
    }

    /**
     * 模擬請求
     *
     * @param url     訪問地址https://api.weixin.qq.com/sns/jscode2session
     * @return
     * @throws NoSuchAlgorithmException
     * @throws KeyManagementException
     * @throws IOException
     * @throws ClientProtocolException
     */
    public String getway(String url) throws KeyManagementException, NoSuchAlgorithmException, ClientProtocolException, IOException {
        String encoding="UTF-8";
        String body = "";
        //採用繞過驗證的方式處理https請求
        SSLContext sslcontext = createIgnoreVerifySSL();

        // 設置協議http和https對應的處理socket鏈接工廠的對象
        Registry<ConnectionSocketFactory> socketFactoryRegistry = RegistryBuilder.<ConnectionSocketFactory>create()
                .register("http", PlainConnectionSocketFactory.INSTANCE)
                .register("https", new SSLConnectionSocketFactory(sslcontext))
                .build();
        PoolingHttpClientConnectionManager connManager = new PoolingHttpClientConnectionManager(socketFactoryRegistry);
        HttpClients.custom().setConnectionManager(connManager);

        //創建自定義的httpclient對象
        CloseableHttpClient client = HttpClients.custom().setConnectionManager(connManager).build();
//    CloseableHttpClient client = HttpClients.createDefault();

        //創建post方式請求對象
        HttpGet httpGet = new HttpGet(url);
        System.out.println("請求地址："+url);

        //設置header信息
        //指定報文頭【Content-type】、【User-Agent】
        httpGet.setHeader("Content-type", "application/x-www-form-urlencoded");
        httpGet.setHeader("User-Agent", "Mozilla/4.0 (compatible; MSIE 5.0; Windows NT; DigExt)");

        //執行請求操作，並拿到結果（同步阻塞）
        CloseableHttpResponse response = client.execute(httpGet);
        //獲取結果實體
        HttpEntity entity = response.getEntity();
        if (entity != null) {
            //按指定編碼轉換結果實體爲String類型
            body = EntityUtils.toString(entity, encoding);
        }
        EntityUtils.consume(entity);
        //釋放鏈接
        response.close();
        return body;
    }
    
    /**
     * 模擬請求 form表單提交
     *
     * @param url     訪問地址 https://api.weixin.qq.com/sns/jscode2session
     * @param map  參數列表
     * @param encoding 編碼
     * @return
     * @throws NoSuchAlgorithmException
     * @throws KeyManagementException
     * @throws IOException
     * @throws ClientProtocolException
     */
    public static String postway(String url, Map<String,String> map, String encoding) throws KeyManagementException, NoSuchAlgorithmException, ClientProtocolException, IOException {
        String body = "";
        //採用繞過驗證的方式處理https請求
        SSLContext sslcontext = createIgnoreVerifySSL();

        // 設置協議http和https對應的處理socket鏈接工廠的對象
        Registry<ConnectionSocketFactory> socketFactoryRegistry = RegistryBuilder.<ConnectionSocketFactory>create()
                .register("http", PlainConnectionSocketFactory.INSTANCE)
                .register("https", new SSLConnectionSocketFactory(sslcontext))
                .build();
        PoolingHttpClientConnectionManager connManager = new PoolingHttpClientConnectionManager(socketFactoryRegistry);
        HttpClients.custom().setConnectionManager(connManager);

        //創建自定義的httpclient對象
        CloseableHttpClient client = HttpClients.custom().setConnectionManager(connManager).build();
//    CloseableHttpClient client = HttpClients.createDefault();

        //創建post方式請求對象
        HttpPost httpPost = new HttpPost(url);

        //裝填參數
        List<NameValuePair> nvps = new ArrayList<NameValuePair>();
        if(map!=null){
            for (Map.Entry<String, String> entry : map.entrySet()) {
                nvps.add(new BasicNameValuePair(entry.getKey(), entry.getValue()));
            }
        }
        //設置參數到請求對象中
        httpPost.setEntity(new UrlEncodedFormEntity(nvps, encoding));

        System.out.println("請求地址："+url);
        System.out.println("請求參數："+nvps.toString());

        //設置header信息
        //指定報文頭【Content-type】、【User-Agent】
        httpPost.setHeader("Content-type", "application/x-www-form-urlencoded");
        httpPost.setHeader("User-Agent", "Mozilla/4.0 (compatible; MSIE 5.0; Windows NT; DigExt)");

        //執行請求操作，並拿到結果（同步阻塞）
        CloseableHttpResponse response = client.execute(httpPost);
        //獲取結果實體
        HttpEntity entity = response.getEntity();
        if (entity != null) {
            //按指定編碼轉換結果實體爲String類型
            body = EntityUtils.toString(entity, encoding);
        }
        EntityUtils.consume(entity);
        //釋放鏈接
        response.close();
        return body;
    }

/**
     * 模擬請求 Json數據提交
     *
     * @param url     資源地址
     * @param   參數  對傳參實體類進行json轉換，String param=JSONObject.toJSONString(object);
     * @param encoding 編碼
     * @return
     * @throws NoSuchAlgorithmException
     * @throws KeyManagementException
     * @throws IOException
     * @throws ClientProtocolException
     */
    public String postway(String url,String param, String encoding) throws KeyManagementException, NoSuchAlgorithmException, ClientProtocolException, IOException {
        String body = "";
        //採用繞過驗證的方式處理https請求
        SSLContext sslcontext = createIgnoreVerifySSL();

        // 設置協議http和https對應的處理socket鏈接工廠的對象
        Registry<ConnectionSocketFactory> socketFactoryRegistry = RegistryBuilder.<ConnectionSocketFactory>create()
                .register("http", PlainConnectionSocketFactory.INSTANCE)
                .register("https", new SSLConnectionSocketFactory(sslcontext))
                .build();
        PoolingHttpClientConnectionManager connManager = new PoolingHttpClientConnectionManager(socketFactoryRegistry);
        HttpClients.custom().setConnectionManager(connManager);

        //創建自定義的httpclient對象
        CloseableHttpClient client = HttpClients.custom().setConnectionManager(connManager).build();
//    CloseableHttpClient client = HttpClients.createDefault();

        //創建post方式請求對象
        HttpPost httpPost = new HttpPost(url);

        //設置參數到請求對象中
//        httpPost.setEntity(new StringEntity(JSONObject.toJSONString(map), Charset.forName(encoding)));
        httpPost.setEntity(new StringEntity(param, Charset.forName(encoding)));

        System.out.println("請求地址："+url);

        //設置header信息
        //指定報文頭【Content-type】、【User-Agent】
//        httpPost.setHeader("Content-type", "application/x-www-form-urlencoded");
        httpPost.setHeader("Content-type", "application/json");
        httpPost.setHeader("User-Agent", "Mozilla/4.0 (compatible; MSIE 5.0; Windows NT; DigExt)");

        //執行請求操作，並拿到結果（同步阻塞）
        CloseableHttpResponse response = client.execute(httpPost);
        //獲取結果實體
        HttpEntity entity = response.getEntity();
        if (entity != null) {
            //按指定編碼轉換結果實體爲String類型
            body = EntityUtils.toString(entity, encoding);
        }
        EntityUtils.consume(entity);
        //釋放鏈接
        response.close();
        return body;
    }
}