java利用HttpClient进行https接口调用

1.为了避免需要证书，所以用一个类继承DefaultHttpClient类，忽略校验过程。

import java.security.cert.CertificateException;

import java.security.cert.X509Certificate;

import javax.net.ssl.SSLContext;

import javax.net.ssl.TrustManager;

import javax.net.ssl.X509TrustManager;

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;

/**

 * 用于进行Https请求的HttpClient

 * @ClassName: SSLClient

 * @Description: TODO

 * @author Devin <xxx>

 * @date 2017年2月7日 下午1:42:07

 *

 */

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));

    }

}

2.创建一个利用HttpClient发送post请求的工具类

import org.apache.http.HttpEntity;

import org.apache.http.HttpResponse;

import org.apache.http.StatusLine;

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;

/**

 * 利用HttpClient进行post请求的工具类

 * @ClassName: HttpClientUtil

 * @Description: TODO

 * @author Devin <xxx>

 * @date 2017年2月7日 下午1:43:38

 *

 */

public class HttpClientUtil {

    @SuppressWarnings("resource")

    public static String doPost(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);

            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 ex){

            ex.printStackTrace();

        }

        return result;

    }

}

3.测试代码

public static void main(String[] args){

        String url = "https://192.168.1.101/xxx";

        String jsonStr = "{xxx}";

        String httpOrgCreateTestRtn = HttpClientUtil.doPost(url, jsonStr, "utf-8");

    }