通过HttpClient以post方式发送https/http请求，请求及返回参数格式为json和xml两种方式，解决https加ip直接访问的ssl签名认证问题

          最近项目中需要向外部服务发送https请求，但是外部服务测试环境提供的访问地址为https加ip、端口的访问方式，由于SSL签名认证问题（网上搜索大多说是因为https后面设计为跟域名绑定访问），无法访问，后来尝试网上各大神的解决方案，完美解决该问题。将代码保存下来，以备不时之需。

import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.entity.StringEntity;
import org.apache.http.message.BasicHeader;
import org.apache.http.util.EntityUtils;

/**
 * @param :
 * @author :     mym
 * @version :    V1.0
 * @date :       2019/07/16 17:25
 * @describe :   发送http请求
 * @return :
 */
public class HttpClientUtil {
    /* *
    * @author :     mym
    * @date Date :  2019/7/20 11:16
    * @version :    V1.0
    * @describe :   https发送json格式的请求  出参、入参都是json串
    * @param :      
    * @return :     
    */
    public static String doJsonPost(String url,String jsonstr,String charset){
        HttpClient httpClient = null;
        HttpPost httpPost = null;
        String result = null;
        try{
            httpClient = new SSLClient();
            httpPost = new HttpPost(url);
            httpPost.addHeader("Content-Type", "application/json");
            StringEntity se = new StringEntity(jsonstr,charset);
            se.setContentType("text/json");
            se.setContentEncoding(new BasicHeader("Content-Type", "application/json"));
            httpPost.setEntity(se);
            HttpResponse response = httpClient.execute(httpPost);
            if(response != null){
                HttpEntity resEntity = response.getEntity();
                if(resEntity != null){
                    result = EntityUtils.toString(resEntity,charset);
                }
            }
        }catch(Exception e){
            e.printStackTrace();
        }
        return result;
    }
    /* *
    * @author :     mym
    * @date Date :  2019/7/20 11:17
    * @version :    V1.0
    * @describe :   http发送xml格式的请求  出参、入参都是xml
    * @param :
    * @return :
    */
    public static String doXmlPost(String url,String xml,String charset){
        HttpClient httpClient = null;
        HttpPost httpPost = null;
        String result = null;
        try{
            httpClient = new SSLClient();
            httpPost = new HttpPost(url);
            httpPost.addHeader("Content-Type", "application/xml");
            StringEntity se = new StringEntity(xml,charset);
            se.setContentType("text/xml");
            se.setContentEncoding(new BasicHeader("Content-Type", "application/xml"));
            httpPost.setEntity(se);
            HttpResponse response = httpClient.execute(httpPost);
            if(response != null){
                HttpEntity resEntity = response.getEntity();
                if(resEntity != null){
                    result = EntityUtils.toString(resEntity,charset);
                }
            }
        }catch(Exception e){
            e.printStackTrace();
        }
        return result;
    }
}

import org.apache.http.conn.ClientConnectionManager;
import org.apache.http.conn.scheme.Scheme;
import org.apache.http.conn.scheme.SchemeRegistry;
import org.apache.http.conn.ssl.SSLSocketFactory;
import org.apache.http.impl.client.DefaultHttpClient;

import javax.net.ssl.SSLContext;
import javax.net.ssl.TrustManager;
import javax.net.ssl.X509TrustManager;
import java.security.cert.CertificateException;
import java.security.cert.X509Certificate;

/**
 * @param :
 * @author :     mym
 * @version :    V1.0
 * @date :       2019/07/16 17:21
 * @describe :   信任https 签名
 * @return :
 */
public class SSLClient extends DefaultHttpClient {
    public SSLClient() throws Exception{
        super();
        SSLContext ctx = SSLContext.getInstance("TLS");
        X509TrustManager tm = new X509TrustManager() {
            @Override
            public void checkClientTrusted(X509Certificate[] chain,
                                           String authType) throws CertificateException {
            }
            @Override
            public void checkServerTrusted(X509Certificate[] chain,
                                           String authType) throws CertificateException {
            }
            @Override
            public X509Certificate[] getAcceptedIssuers() {
                return null;
            }
        };
        ctx.init(null, new TrustManager[]{tm}, null);
        SSLSocketFactory ssf = new SSLSocketFactory(ctx, SSLSocketFactory.ALLOW_ALL_HOSTNAME_VERIFIER);
        ClientConnectionManager ccm = this.getConnectionManager();
        SchemeRegistry sr = ccm.getSchemeRegistry();
        sr.register(new Scheme("https", 443, ssf));
    }
}

需要的maven依赖：

<dependency>
    <groupId>org.apache.httpcomponents</groupId>
    <artifactId>httpclient</artifactId>
    <version>4.3.5</version>
</dependency>

码字不易，转载请注明出处！