HttpClient发送https请求忽略SSL证书

没有忽略时报错

javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.ssl.Alerts.getSSLException(Alerts.java:192)
    at sun.security.ssl.SSLSocketImpl.fatal(SSLSocketImpl.java:1959)

忽略https认证，就是自己构建一个x509认证，默认通过，再传到ssl配置工厂中；

  public static CloseableHttpClient trustAll(){
        //配置，发送https请求时，忽略ssl证书认证（否则会报错没有证书）
        SSLContext sslContext = null;
        try {
            sslContext = SSLContexts.custom().loadTrustMaterial(null, new TrustStrategy() {
                @Override
                public boolean isTrusted(X509Certificate[] x509Certificates, String s) throws CertificateException {
                    return true;
                }
            }).build();
        } catch (NoSuchAlgorithmException e) {
            e.printStackTrace();
        } catch (KeyManagementException e) {
            e.printStackTrace();
        } catch (KeyStoreException e) {
            e.printStackTrace();
        }

//创建httpClient
        CloseableHttpClient client = HttpClients.custom().setSSLContext(sslContext).setSSLHostnameVerifier(new NoopHostnameVerifier()).build();


        return client;
    }

发送请求时调用trustAll（）方法返回的client；

发送POST请求

 public static String doPost(Map<String, String> params, String url) throws URISyntaxException {//        设置请求超时时间
        RequestConfig requestConfig = RequestConfig.custom().setConnectTimeout(3000)
                .setConnectionRequestTimeout(3000)
                .setSocketTimeout(3000)
                .build();
        post.setConfig(requestConfig);
        System.out.println("url=" + url);
        String result = "";
        try {
            post.setHeader("Content-Type", "application/json;charset=UTF-8");//           设置json格式
            String strParam = JSONObject.toJSONString(params);
            StringEntity paramEntity = new StringEntity(strParam);
            paramEntity.setContentEncoding("utf-8");
            paramEntity.setContentType("application/json");
            post.setEntity(paramEntity);//发起请求 ， 调用trustAll（）方法返回的client
            HttpResponse httpResponse = trustAll().execute(post);
            //返回结果
            int statusCode = httpResponse.getStatusLine().getStatusCode();
            String postReturn = EntityUtils.toString(httpResponse.getEntity());
            result = "code=" + statusCode + ",result = " + postReturn;
            System.out.println(result);
        } catch (Exception e) {
            e.printStackTrace();
        }
        return result;
    }

参考：

https://blog.csdn.net/weixin_44671176/article/details/110230719

https://blog.csdn.net/u011221074/article/details/104675035