package com.szboanda.springboot.https;

import java.io.IOException;
import java.security.KeyManagementException;
import java.security.NoSuchAlgorithmException;
import java.security.cert.CertificateException;

import javax.net.ssl.SSLContext;
import javax.net.ssl.TrustManager;
import javax.net.ssl.X509TrustManager;

import org.apache.http.HttpEntity;
import org.apache.http.client.methods.CloseableHttpResponse;
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.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.util.EntityUtils;

public class HttpRequestUtil {

/**
* 执行https请求
*
* @param url 请求url
* @param param 参数
* @param token kong的Basic Auth凭证
* @return
*/
@SuppressWarnings("deprecation")
public static String exeHttpsRequest(String url, String param, String token) {
String body = "";
CloseableHttpClient client = null;
try {
// 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("http", PlainConnectionSocketFactory.INSTANCE)
.register("https", new SSLConnectionSocketFactory(sslcontext,
SSLConnectionSocketFactory.ALLOW_ALL_HOSTNAME_VERIFIER))
.build();
PoolingHttpClientConnectionManager connManager = new PoolingHttpClientConnectionManager(
socketFactoryRegistry);
HttpClients.custom().setConnectionManager(connManager);

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

// 创建post方式请求对象
HttpPost httpPost = new HttpPost(url);

// 指定报文头Content-type、User-Agent
httpPost.setHeader("Content-type", "application/json");
httpPost.setHeader("Authorization", "Basic " + token);
httpPost.setHeader("User-Agent", "Mozilla/5.0 (Windows NT 6.1; rv:6.0.2) Gecko/20100101 Firefox/6.0.2");
StringEntity stringEntity = new StringEntity(param, "UTF-8");
stringEntity.setContentType("application/json");
httpPost.setEntity(stringEntity);
// 执行请求操作，并拿到结果（同步阻塞）
CloseableHttpResponse response = client.execute(httpPost);

// 获取结果实体
HttpEntity entity = response.getEntity();
if (entity != null) {
// 按指定编码转换结果实体为String类型
body = EntityUtils.toString(entity, "UTF-8");
}

EntityUtils.consume(entity);
// 释放链接
response.close();
// System.out.println("body:" + body);
} catch (Exception ex) {
ex.printStackTrace();
} finally {
try {
client.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
return body;

}

private static SSLContext createIgnoreVerifySSL() throws NoSuchAlgorithmException, KeyManagementException {
SSLContext sc = SSLContext.getInstance("TLSv1.2");

// 实现一个X509TrustManager接口，用于绕过验证，不用修改里面的方法
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;
}

}

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