java访问https，获取页面或者数据时，需要证书和账号密码的验证。

一 获取CRT证书

获取网站的证书，拿到证书后可能是crt格式，可以使用下面的命令转为p12格式

openssl pkcs12 -export -in Mycert.crt -inkey Mykey.key -out Mycert.p12 -name "Mycert"

Mycert.crt是证书，Mykey.key是生成证书同时生成的key，最终转出Mycert.p12

二 访问https，不需要账号密码

比如访问如下地址

https://hf.anjuke.com/esf-ajax/community/pc/autocomplete?city_id=33&kw=%E9%9D%92%E9%98%B3%E6%96%B0%E6%9D%91&type=3

public static void GetSSLJson4() throws Exception {
		
		final String certFile = "C:/Users/682556/wux-presto.seagate.com.p12";//证书
        final String storePass = "presto-seagate";//证书的密码
        final String keyPass = "presto-seagate";//key的密码，两者相同

        KeyStore keyStore;
        try (FileInputStream fis = new FileInputStream(certFile)) {
            keyStore = KeyStore.getInstance("PKCS12"); // or "JKS"
            keyStore.load(fis, storePass.toCharArray());//装载证书
        }

        SSLContextBuilder sslContextBuilder = SSLContexts.custom();
        sslContextBuilder.loadTrustMaterial(TrustAllStrategy.INSTANCE);
        sslContextBuilder.loadKeyMaterial(keyStore, keyPass.toCharArray());
        SSLContext sslContext = sslContextBuilder.build();

        HttpClientBuilder httpClientBuilder = HttpClients.custom();
        httpClientBuilder.setSSLContext(sslContext);
        httpClientBuilder.setSSLHostnameVerifier(NoopHostnameVerifier.INSTANCE);
        
        CloseableHttpClient httpClient = httpClientBuilder.build();
        HttpGet get = new HttpGet("https://hf.anjuke.com/esf-ajax/community/pc/autocomplete?city_id=33&kw=%E9%9D%92%E9%98%B3%E6%96%B0%E6%9D%91&type=3");
	
        CloseableHttpResponse response = null;
        response = httpClient.execute(get);
        
        HttpEntity entity = response.getEntity();
        String result = EntityUtils.toString(entity);
        System.out.println(result);
	}

运行上面的方法，获得json返回值

{"status":"ok","serverTime":{"year":2023,"month":"JUNE","dayOfWeek":"FRIDAY","dayOfYear":153,"era":"CE","chronology":{"calendarType":"iso8601","id":"ISO"},"leapYear":false,"monthValue":6,"dayOfMonth":2},"data":[{"id":337953,"name":"青阳新村","address":"蜀山-青阳北路-青阳北路31号","type":4,"areaId":3882,"areaName":"蜀山","price":"13818","listName":"qingyangxincun","flag":{"isCommission":"0"}}]}

三 访问https，需要账号密码

以下地址是我内部地址，需要登录输入账号密码

https://wux-presto.seagate.com:31265/v1/query/20230602_070334_01069_r2s92?pretty

https内容json

 

 Java代码

public static void GetSSLJson4() throws Exception {
		
		final String certFile = "C:/Users/682556/wux-presto.seagate.com.p12";//证书
        final String storePass = "presto-seagate";//证书的密码
        final String keyPass = "presto-seagate";//key的密码，两者相同

        KeyStore keyStore;
        try (FileInputStream fis = new FileInputStream(certFile)) {
            keyStore = KeyStore.getInstance("PKCS12"); // or "JKS"
            keyStore.load(fis, storePass.toCharArray());//装载证书
        }

        SSLContextBuilder sslContextBuilder = SSLContexts.custom();
        sslContextBuilder.loadTrustMaterial(TrustAllStrategy.INSTANCE);
        sslContextBuilder.loadKeyMaterial(keyStore, keyPass.toCharArray());
        SSLContext sslContext = sslContextBuilder.build();

        HttpClientBuilder httpClientBuilder = HttpClients.custom();
        httpClientBuilder.setSSLContext(sslContext);
        httpClientBuilder.setSSLHostnameVerifier(NoopHostnameVerifier.INSTANCE);
        
        //设置https网页账号密码
        CredentialsProvider provider = new BasicCredentialsProvider();
        provider.setCredentials(new AuthScope("wux-presto.seagate.com",31265), new UsernamePasswordCredentials("账号", "密码"));
        
        CloseableHttpClient httpClient = httpClientBuilder.setDefaultCredentialsProvider(provider).build();
        HttpGet get = new HttpGet("https://wux-presto.seagate.com:31265/v1/query/20230602_070334_01069_r2s92?pretty");
	
        CloseableHttpResponse response = null;
        response = httpClient.execute(get);
        
        HttpEntity entity = response.getEntity();
        String result = EntityUtils.toString(entity,"UTF-8");
        System.out.println(result);
	}

运行以上程序，返回结果