HttpClient之配置ssl，采用繞過證書驗證實現https

/**
* 繞過驗證
*
* @return
* @throws NoSuchAlgorithmException
* @throws KeyManagementException
*/
public static SSLContext createIgnoreVerifySSL() throws NoSuchAlgorithmException, KeyManagementException {
SSLContext sc = SSLContext.getInstance("SSLv3");

// 實現一個X509TrustManager接口，用於繞過驗證，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;
}

 

/**
* 模擬請求
*
* @param url 資源地址
* @param map 參數列表
* @param encoding 編碼
* @return
* @throws NoSuchAlgorithmException
* @throws KeyManagementException
* @throws IOException
* @throws ClientProtocolException
*/
public static String send(String url, Map<String,String> map,String encoding) throws KeyManagementException, NoSuchAlgorithmException, ClientProtocolException, IOException {
String body = "";
//采用繞過驗證的方式處理https請求
SSLContext sslcontext = createIgnoreVerifySSL();

// 設置協議http和https對應的處理socket鏈接工廠的對象
Registry<ConnectionSocketFactory> socketFactoryRegistry = RegistryBuilder.<ConnectionSocketFactory>create()
.register("http", PlainConnectionSocketFactory.INSTANCE)
.register("https", new SSLConnectionSocketFactory(sslcontext))
.build();
PoolingHttpClientConnectionManager connManager = new PoolingHttpClientConnectionManager(socketFactoryRegistry);
HttpClients.custom().setConnectionManager(connManager);

//創建自定義的httpclient對象
CloseableHttpClient client = HttpClients.custom().setConnectionManager(connManager).build();
// CloseableHttpClient client = HttpClients.createDefault();

//創建post方式請求對象
HttpPost httpPost = new HttpPost(url);

//裝填參數
List<NameValuePair> nvps = new ArrayList<NameValuePair>();
if(map!=null){
for (Entry<String, String> entry : map.entrySet()) {
nvps.add(new BasicNameValuePair(entry.getKey(), entry.getValue()));
}
}
//設置參數到請求對象中
httpPost.setEntity(new UrlEncodedFormEntity(nvps, encoding));

System.out.println("請求地址："+url);
System.out.println("請求參數："+nvps.toString());

//設置header信息
//指定報文頭【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)");

//執行請求操作，並拿到結果（同步阻塞）
CloseableHttpResponse response = client.execute(httpPost);
//獲取結果實體
HttpEntity entity = response.getEntity();
if (entity != null) {
//按指定編碼轉換結果實體為String類型
body = EntityUtils.toString(entity, encoding);
}
EntityUtils.consume(entity);
//釋放鏈接
response.close();
return body;
}