java.security.InvalidAlgorithmParameterException: the trustAnchors parameter must be non-empty解决方法

报错显示：

javax.net.ssl.SSLException: java.lang.RuntimeException: Unexpected error: java.security.InvalidAlgorithmParameterException: the trustAnchors parameter must be non-empty
    at org.apache.axis.AxisFault.makeFault(AxisFault.java:101)

 

用下边这篇文章，成功解决。工具类：

/*
 * Log			changed by 	 	Date			Desc
 * L48972_1    huang.hui	2018-12-18		调用接口，绕开验证
*/
package com.css.eshop.util;

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;
import java.util.Map.Entry;

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

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.http.HttpEntity;
import org.apache.http.NameValuePair;
import org.apache.http.ParseException;
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 com.css.eshop.model.Respones;
import com.css.eshop.model.TokenVo;
import com.google.gson.Gson;

public class HttpClientNoValidation {
	protected static Log logger = LogFactory.getLog(HttpClientUtil.class);
	/**
	 * 绕过验证
	 * 	
	 * @return
	 * @throws NoSuchAlgorithmException 
	 * @throws KeyManagementException 
	 */
	public static SSLContext createIgnoreVerifySSL() throws NoSuchAlgorithmException, KeyManagementException {
		SSLContext sc = SSLContext.getInstance("SSLv3");
 
		// 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;
	}
	/**
	 * 模拟请求
	 * 
	 * @param url		资源地址
	 * @param map	参数列表
	 * @param encoding	编码
	 * @return
	 * @throws NoSuchAlgorithmException 
	 * @throws KeyManagementException 
	 * @throws IOException 
	 * @throws ClientProtocolException 
	 */
	public static String sendPost(String url, Map map,String encoding) throws KeyManagementException, NoSuchAlgorithmException, ClientProtocolException, IOException {
		String body = "";
		//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 socketFactoryRegistry = RegistryBuilder.create()
            .register("http", PlainConnectionSocketFactory.INSTANCE)
            .register("https", new SSLConnectionSocketFactory(sslcontext))
            .build();
        PoolingHttpClientConnectionManager connManager = new PoolingHttpClientConnectionManager(socketFactoryRegistry);
        HttpClients.custom().setConnectionManager(connManager);
 
        //创建自定义的httpclient对象
		CloseableHttpClient client = HttpClients.custom().setConnectionManager(connManager).build();
//		CloseableHttpClient client = HttpClients.createDefault();
		
		//创建post方式请求对象
		HttpPost httpPost = new HttpPost(url);
		
		//装填参数
		List nvps = new ArrayList();
		if(map!=null){
			for (Entry entry : map.entrySet()) {
				nvps.add(new BasicNameValuePair(entry.getKey(), entry.getValue()));
			}
		}
		//设置参数到请求对象中
		httpPost.setEntity(new UrlEncodedFormEntity(nvps, encoding));
 
		System.out.println("请求地址："+url);
		System.out.println("请求参数："+nvps.toString());
		
		//设置header信息
		//指定报文头【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)");
		
		//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, encoding);
		}
		EntityUtils.consume(entity);
		//释放链接
		response.close();
        return body;
	}
	/**
	 * 模拟请求Get
	 * 
	 * @param url		资源地址
	 * @param map	参数列表
	 * @param encoding	编码
	 * @return
	 * @throws NoSuchAlgorithmException 
	 * @throws KeyManagementException 
	 * @throws IOException 
	 * @throws ClientProtocolException 
	 */
	public static Respones send(String url, Map map,String encoding) throws KeyManagementException, NoSuchAlgorithmException, ClientProtocolException, IOException {
		String body = "";
		String strResult = "";
		Respones responseVo = new Respones();
		//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 socketFactoryRegistry = RegistryBuilder.create()
            .register("http", PlainConnectionSocketFactory.INSTANCE)
            .register("https", new SSLConnectionSocketFactory(sslcontext))
            .build();
        PoolingHttpClientConnectionManager connManager = new PoolingHttpClientConnectionManager(socketFactoryRegistry);
        HttpClients.custom().setConnectionManager(connManager);
 
        //创建自定义的httpclient对象
		CloseableHttpClient client = HttpClients.custom().setConnectionManager(connManager).build();
//		CloseableHttpClient client = HttpClients.createDefault();
		CloseableHttpResponse response=null;
		try {
		//创建post方式请求对象
		//HttpPost httpPost = new HttpPost(url);
		HttpGet httpget= new HttpGet(url);
		//装填参数
		List nvps = new ArrayList();
		if(map!=null){
			for (Entry entry : map.entrySet()) {
				nvps.add(new BasicNameValuePair(entry.getKey(), entry.getValue()));
			}
		}
		//设置参数到请求对象中
		//httpPost.setEntity(new UrlEncodedFormEntity(nvps, encoding));
 
		System.out.println("请求地址："+url);
		System.out.println("请求参数："+nvps.toString());
		
		//设置header信息
		//指定报文头【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)");
		
		//执行请求操作，并拿到结果（同步阻塞）
		 response = client.execute(httpget);
		//获取结果实体
		HttpEntity entity = response.getEntity();
		int iGetResultCode = response.getStatusLine().getStatusCode();
		if (entity != null) {
			//按指定编码转换结果实体为String类型
			//body = EntityUtils.toString(entity, encoding);
			strResult = EntityUtils.toString(entity);
		}
	
		responseVo.setResponeCde(iGetResultCode);
		responseVo.setResult(strResult);
		//EntityUtils.consume(entity);
		} catch (Exception ex) {
			responseVo.setResponeCde(500);
			responseVo.setResult("error");
			logger.error("executeGetMethod", ex);
		} finally {
			 try {
				if(response !=null){
					response.close();
				}
			} catch (Exception e) {
				logger.error("executeGetMethod", e);
			}
		}
		//释放链接
		response.close();
        return responseVo;
	}
	/**
	 * 模拟请求Get()
	 * 
	 * @param url		资源地址
	 * @param map	参数列表
	 * @param map	token
	 * @param encoding	编码
	 * @return
	 * @throws NoSuchAlgorithmException 
	 * @throws KeyManagementException 
	 * @throws IOException 
	 * @throws ClientProtocolException 
	 */
	public static Respones sendTokenToGet(String url, Map map,Respones tokenRespones,String encoding) throws KeyManagementException, NoSuchAlgorithmException, ClientProtocolException, IOException {
		//处理token参数 start
		String  token = tokenRespones.getResult();
         if(tokenRespones.getResponeCde() >= 303){
         	return tokenRespones;
         }
         Gson gson = new Gson();
         TokenVo t = gson.fromJson(token, TokenVo.class);
         logger.info(" Token\t: " + t.getToken());
         token = t.getToken();
       //处理token参数 end
         
		String body = "";
		String strResult = "";
		Respones responseVo = new Respones();
		//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 socketFactoryRegistry = RegistryBuilder.create()
            .register("http", PlainConnectionSocketFactory.INSTANCE)
            .register("https", new SSLConnectionSocketFactory(sslcontext))
            .build();
        PoolingHttpClientConnectionManager connManager = new PoolingHttpClientConnectionManager(socketFactoryRegistry);
        HttpClients.custom().setConnectionManager(connManager);
 
        //创建自定义的httpclient对象
		CloseableHttpClient client = HttpClients.custom().setConnectionManager(connManager).build();
//		CloseableHttpClient client = HttpClients.createDefault();
		CloseableHttpResponse response=null;
		try {
		//创建post方式请求对象
		//HttpPost httpPost = new HttpPost(url);
		HttpGet httpget= new HttpGet(url);
		//装填参数
		List nvps = new ArrayList();
		if(map!=null){
			for (Entry entry : map.entrySet()) {
				nvps.add(new BasicNameValuePair(entry.getKey(), entry.getValue()));
			}
		}
		//设置参数到请求对象中
		//httpPost.setEntity(new UrlEncodedFormEntity(nvps, encoding));
 
		System.out.println("请求地址："+url);
		System.out.println("请求参数："+nvps.toString());
		
		//设置header信息
		//指定报文头【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)");
		httpget.setHeader("Authorization", token);
		
		//执行请求操作，并拿到结果（同步阻塞）
		 response = client.execute(httpget);
		//获取结果实体
		HttpEntity entity = response.getEntity();
		int iGetResultCode = response.getStatusLine().getStatusCode();
		if (entity != null) {
			//按指定编码转换结果实体为String类型
			//body = EntityUtils.toString(entity, encoding);
			strResult = EntityUtils.toString(entity);
		}
	
		responseVo.setResponeCde(iGetResultCode);
		responseVo.setResult(strResult);
		//EntityUtils.consume(entity);
		} catch (Exception ex) {
			responseVo.setResponeCde(500);
			responseVo.setResult("error");
			logger.error("executeGetMethod", ex);
		} finally {
			 try {
				if(response !=null){
					response.close();
				}
			} catch (Exception e) {
				logger.error("executeGetMethod", e);
			}
		}
		//释放链接
		response.close();
        return responseVo;
	}
	public static void main(String[] args) throws ParseException, IOException, KeyManagementException, NoSuchAlgorithmException {
        //获取token
		String url = "https://..../token";//获取token的地址
		Respones body = send(url, null, "utf-8");
		System.out.println("交易响应结果：");
		System.out.println(body.getResponeCde());
		System.out.println(body.getResult());
		
		//使用get调用接口，并传token
		String url2="https://....";
		Respones body2 = sendTokenToGet(url2, null,body, "utf-8");
		System.out.println(body2.getResponeCde()+", "+body2.getResult());
		System.out.println("-----------------------------------");

}

实体类：

import java.io.Serializable;

public class Respones implements Serializable{
	
	private static final long serialVersionUID = 1L;
	
	private int responeCde;
	
	private String result;

	public int getResponeCde() {
		return responeCde;
	}

	public void setResponeCde(int responeCde) {
		this.responeCde = responeCde;
	}

	public String getResult() {
		return result;
	}

	public void setResult(String result) {
		this.result = result;
	}
	
}

package com.css.eshop.model;

public class TokenVo {

	private String ip;
	private String token;
	private String expiration;

	public String getIp() {
		return ip;
	}

	public void setIp(String ip) {
		this.ip = ip;
	}

	public String getToken() {
		return token;
	}

	public void setToken(String token) {
		this.token = token;
	}

	public String getExpiration() {
		return expiration;
	}

	public void setExpiration(String expiration) {
		this.expiration = expiration;
	}
}

在python中，requests.get(url,verify=False)  设置一下就ok。

 

参考文章：轻松把玩HttpClient之配置ssl，采用绕过证书验证实现https

httpclient不能直接访问https的资源，这次就来模拟一下环境，然后配置https测试一下。在前面的文章中，分享了一篇自己生成并在tomcat中配置ssl的文章《Tomcat配置SSL》，大家可以据此来在本地配置https。我已经配置好了，效果是这样滴：

可以看到已经信任该证书（显示浅绿色小锁），浏览器可以正常访问。现在我们用代码测试一下：

    public static void main(String[] args) throws ParseException, IOException, KeyManagementException, NoSuchAlgorithmException, HttpProcessException {
        String url = "https://sso.tgb.com:8443/cas/login";
        String body = send(url, null, "utf-8");
        System.out.println("交易响应结果：");
        System.out.println(body);
        System.out.println("-----------------------------------");
    }

发现抛出了异常，我知道的有两种方案（也许还有我不知道的方案），这里介绍第一种方案，也是用的比较多的方案——绕过证书验证。直接看代码吧：

    

/**
     * 绕过验证
     *     
     * @return
     * @throws NoSuchAlgorithmException 
     * @throws KeyManagementException 
     */
    public static SSLContext createIgnoreVerifySSL() throws NoSuchAlgorithmException, KeyManagementException {
        SSLContext sc = SSLContext.getInstance("SSLv3");
 
        // 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;
    }
然后修改原来的send方法：
    /**
     * 模拟请求
     * 
     * @param url        资源地址
     * @param map    参数列表
     * @param encoding    编码
     * @return
     * @throws NoSuchAlgorithmException 
     * @throws KeyManagementException 
     * @throws IOException 
     * @throws ClientProtocolException 
     */
    public static String send(String url, Map map,String encoding) throws KeyManagementException, NoSuchAlgorithmException, ClientProtocolException, IOException {
        String body = "";
        //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 socketFactoryRegistry = RegistryBuilder.create()
            .register("http", PlainConnectionSocketFactory.INSTANCE)
            .register("https", new SSLConnectionSocketFactory(sslcontext))
            .build();
        PoolingHttpClientConnectionManager connManager = new PoolingHttpClientConnectionManager(socketFactoryRegistry);
        HttpClients.custom().setConnectionManager(connManager);
 
        //创建自定义的httpclient对象
        CloseableHttpClient client = HttpClients.custom().setConnectionManager(connManager).build();
//        CloseableHttpClient client = HttpClients.createDefault();
        
        //创建post方式请求对象
        HttpPost httpPost = new HttpPost(url);
        
        //装填参数
        List nvps = new ArrayList();
        if(map!=null){
            for (Entry entry : map.entrySet()) {
                nvps.add(new BasicNameValuePair(entry.getKey(), entry.getValue()));
            }
        }
        //设置参数到请求对象中
        httpPost.setEntity(new UrlEncodedFormEntity(nvps, encoding));
 
        System.out.println("请求地址："+url);
        System.out.println("请求参数："+nvps.toString());
        
        //设置header信息
        //指定报文头【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)");
        
        //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, encoding);
        }
        EntityUtils.consume(entity);
        //释放链接
        response.close();
        return body;
    }

现在再进行测试，发现果然通了。
--------------------- 

原文：https://blog.csdn.net/xiaoxian8023/article/details/49865335 
参考博客：

https://blog.csdn.net/xiaoxian8023/article/category/5968067