Apache HttpClient 4.5实现https

没什么，就是记录个代码。

全部信任的

import org.apache.commons.collections.MapUtils;
import org.apache.http.*;
import org.apache.http.client.entity.UrlEncodedFormEntity;
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.NoopHostnameVerifier;
import org.apache.http.conn.ssl.SSLConnectionSocketFactory;
import org.apache.http.conn.ssl.TrustStrategy;
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.ssl.SSLContextBuilder;
import org.apache.http.util.EntityUtils;
import java.io.IOException;
import java.security.cert.CertificateException;
import java.security.cert.X509Certificate;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;

public class HttpsUtils {
    private static final String HTTP = "http";
    private static final String HTTPS = "https";
    private static SSLConnectionSocketFactory sslsf = null;
    private static PoolingHttpClientConnectionManager cm = null;
    private static SSLContextBuilder builder = null;
    static {
        try {
            builder = new SSLContextBuilder();
            // 全部信任 不做身份鉴定
            builder.loadTrustMaterial(null, new TrustStrategy() {
                @Override
                public boolean isTrusted(X509Certificate[] x509Certificates, String s) throws CertificateException {
                    return true;
                }
            });
            sslsf = new SSLConnectionSocketFactory(builder.build(), new String[]{"SSLv2Hello", "SSLv3", "TLSv1", "TLSv1.2"}, null, NoopHostnameVerifier.INSTANCE);
            Registry registry = RegistryBuilder.create()
                    .register(HTTP, new PlainConnectionSocketFactory())
                    .register(HTTPS, sslsf)
                    .build();
            cm = new PoolingHttpClientConnectionManager(registry);
            cm.setMaxTotal(200);//max connection
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
    /**
     * httpClient post请求
     * @param url 请求url
     * @param header 头部信息
     * @param param 请求参数 form提交适用
     * @param entity 请求实体 json/xml提交适用
     * @return 可能为空 需要处理
     * @throws Exception
     *
     */
    public static String post(String  url, Map header, Map param, HttpEntity entity) throws Exception {
        String result = "";
        CloseableHttpClient httpClient = null;
        try {
            httpClient = getHttpClient();
            HttpPost httpPost = new HttpPost(url);
            // 设置头信息
            if (MapUtils.isNotEmpty(header)) {
                for (Map.Entry entry : header.entrySet()) {
                    httpPost.addHeader(entry.getKey(), entry.getValue());
                }
            }
            // 设置请求参数
            if (MapUtils.isNotEmpty(param)) {
                List formparams = new ArrayList();
                for (Map.Entry entry : param.entrySet()) {
                    //给参数赋值
                    formparams.add(new BasicNameValuePair(entry.getKey(), entry.getValue()));
                }
                UrlEncodedFormEntity urlEncodedFormEntity = new UrlEncodedFormEntity(formparams, Consts.UTF_8);
                httpPost.setEntity(urlEncodedFormEntity);
            }
            // 设置实体 优先级高
            if (entity != null) {
                httpPost.setEntity(entity);
            }
            HttpResponse httpResponse = httpClient.execute(httpPost);
            int statusCode = httpResponse.getStatusLine().getStatusCode();
            if (statusCode == HttpStatus.SC_OK) {
                HttpEntity resEntity = httpResponse.getEntity();
                result = EntityUtils.toString(resEntity);
            } else {
　　　　　　　　　readHttpResponse(httpResponse);
            }
        } catch (Exception e) {throw e;
        } finally {
            if (httpClient != null) {
                httpClient.close();
            }
        }
        return result;
    }
    public static CloseableHttpClient getHttpClient() throws Exception {
        CloseableHttpClient httpClient = HttpClients.custom()
                .setSSLSocketFactory(sslsf)
                .setConnectionManager(cm)
                .setConnectionManagerShared(true)
                .build();
        return httpClient;
    }
    public static String readHttpResponse(HttpResponse httpResponse)
            throws ParseException, IOException {
        StringBuilder builder = new StringBuilder();
        // 获取响应消息实体
        HttpEntity entity = httpResponse.getEntity();
        // 响应状态
        builder.append("status:" + httpResponse.getStatusLine());
        builder.append("headers:");
        HeaderIterator iterator = httpResponse.headerIterator();
        while (iterator.hasNext()) {
            builder.append("\t" + iterator.next());
        }
        // 判断响应实体是否为空
        if (entity != null) {
            String responseString = EntityUtils.toString(entity);
            builder.append("response length:" + responseString.length());
            builder.append("response content:" + responseString.replace("\r\n", ""));
        }
        return builder.toString();
    }
}

重写检验函数的

package com.space.utils.http;
 
import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONObject;
import org.apache.commons.lang3.StringUtils;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.NameValuePair;
import org.apache.http.client.HttpClient;
import org.apache.http.client.config.AuthSchemes;
import org.apache.http.client.config.CookieSpecs;
import org.apache.http.client.config.RequestConfig;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpDelete;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.client.methods.HttpPut;
import org.apache.http.config.Registry;
import org.apache.http.config.RegistryBuilder;
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.socket.ConnectionSocketFactory;
import org.apache.http.conn.socket.PlainConnectionSocketFactory;
import org.apache.http.conn.ssl.NoopHostnameVerifier;
import org.apache.http.conn.ssl.SSLConnectionSocketFactory;
import org.apache.http.conn.ssl.SSLSocketFactory;
import org.apache.http.entity.ByteArrayEntity;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.impl.client.HttpClientBuilder;
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 javax.net.ssl.SSLContext;
import javax.net.ssl.TrustManager;
import javax.net.ssl.X509TrustManager;
import java.io.IOException;
import java.io.UnsupportedEncodingException;
import java.net.URLEncoder;
import java.security.KeyManagementException;
import java.security.NoSuchAlgorithmException;
import java.security.cert.X509Certificate;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.Map;
 
/**
 * http请求工具类
 * @author zhuzhe
 * @date 2018/5/3 11:46
 */
public class HttpUtils {
 
    /**
     * get
     *
     * @param host
     * @param path
     *
     * @param headers
     * @param querys
     * @return
     * @throws Exception
     */
    public static HttpResponse doGet(String host, String path,
                                     Map headers,
                                     Map querys)
            throws Exception {
        HttpClient httpClient = wrapClient(host,path);
        HttpGet request = new HttpGet(buildUrl(host, path, querys));
        for (Map.Entry e : headers.entrySet()) {
            request.addHeader(e.getKey(), e.getValue());
        }
        return httpClient.execute(request);
    }
 
    /**
     * post form
     *
     * @param host
     * @param path
     *
     * @param headers
     * @param querys
     * @param bodys
     * @return
     * @throws Exception
     */
    public static HttpResponse doPost(String host, String path,
                                      Map headers,
                                      Map querys,
                                      Map bodys)
            throws Exception {
        HttpClient httpClient = wrapClient(host,path);
        HttpPost request = new HttpPost(buildUrl(host, path, querys));
        for (Map.Entry e : headers.entrySet()) {
            request.addHeader(e.getKey(), e.getValue());
        }
        if (bodys != null) {
            List nameValuePairList = new ArrayList();
 
            for (String key : bodys.keySet()) {
                nameValuePairList.add(new BasicNameValuePair(key, bodys.get(key)));
            }
            UrlEncodedFormEntity formEntity = new UrlEncodedFormEntity(nameValuePairList, "utf-8");
            formEntity.setContentType("application/x-www-form-urlencoded; charset=UTF-8");
            request.setEntity(formEntity);
        }
        return httpClient.execute(request);
    }
 
    /**
     * Post String
     *
     * @param host
     * @param path
     *
     * @param headers
     * @param querys
     * @param body
     * @return
     * @throws Exception
     */
    public static HttpResponse doPost(String host, String path,
                                      Map headers,
                                      Map querys,
                                      String body)
            throws Exception {
        HttpClient httpClient = wrapClient(host,path);
        HttpPost request = new HttpPost(buildUrl(host, path, querys));
        for (Map.Entry e : headers.entrySet()) {
            request.addHeader(e.getKey(), e.getValue());
        }
        if (StringUtils.isNotBlank(body)) {
            request.setEntity(new StringEntity(body, "utf-8"));
        }
        return httpClient.execute(request);
    }
 
    /**
     * Post stream
     *
     * @param host
     * @param path
     *
     * @param headers
     * @param querys
     * @param body
     * @return
     * @throws Exception
     */
    public static HttpResponse doPost(String host, String path,
                                      Map headers,
                                      Map querys,
                                      byte[] body)
            throws Exception {
        HttpClient httpClient = wrapClient(host,path);
        HttpPost request = new HttpPost(buildUrl(host, path, querys));
        for (Map.Entry e : headers.entrySet()) {
            request.addHeader(e.getKey(), e.getValue());
        }
        if (body != null) {
            request.setEntity(new ByteArrayEntity(body));
        }
        return httpClient.execute(request);
    }
 
    /**
     * Put String
     * @param host
     * @param path
     *
     * @param headers
     * @param querys
     * @param body
     * @return
     * @throws Exception
     */
    public static HttpResponse doPut(String host, String path,
                                     Map headers,
                                     Map querys,
                                     String body)
            throws Exception {
        HttpClient httpClient = wrapClient(host,path);
        HttpPut request = new HttpPut(buildUrl(host, path, querys));
        for (Map.Entry e : headers.entrySet()) {
            request.addHeader(e.getKey(), e.getValue());
        }
        if (StringUtils.isNotBlank(body)) {
            request.setEntity(new StringEntity(body, "utf-8"));
        }
        return httpClient.execute(request);
    }
 
    /**
     * Put stream
     * @param host
     * @param path
     *
     * @param headers
     * @param querys
     * @param body
     * @return
     * @throws Exception
     */
    public static HttpResponse doPut(String host, String path,
                                     Map headers,
                                     Map querys,
                                     byte[] body)
            throws Exception {
        HttpClient httpClient = wrapClient(host,path);
        HttpPut request = new HttpPut(buildUrl(host, path, querys));
        for (Map.Entry e : headers.entrySet()) {
            request.addHeader(e.getKey(), e.getValue());
        }
        if (body != null) {
            request.setEntity(new ByteArrayEntity(body));
        }
        return httpClient.execute(request);
    }
 
    /**
     * Delete
     *
     * @param host
     * @param path
     *
     * @param headers
     * @param querys
     * @return
     * @throws Exception
     */
    public static HttpResponse doDelete(String host, String path,
                                        Map headers,
                                        Map querys)
            throws Exception {
        HttpClient httpClient = wrapClient(host,path);
        HttpDelete request = new HttpDelete(buildUrl(host, path, querys));
        for (Map.Entry e : headers.entrySet()) {
            request.addHeader(e.getKey(), e.getValue());
        }
        return httpClient.execute(request);
    }
 
    /**
     * 构建请求的 url
     * @param host
     * @param path
     * @param querys
     * @return
     * @throws UnsupportedEncodingException
     */
    private static String buildUrl(String host, String path, Map querys) throws UnsupportedEncodingException {
        StringBuilder sbUrl = new StringBuilder();
        if (!StringUtils.isBlank(host)) {
            sbUrl.append(host);
        }
        if (!StringUtils.isBlank(path)) {
            sbUrl.append(path);
        }
        if (null != querys) {
            StringBuilder sbQuery = new StringBuilder();
            for (Map.Entry query : querys.entrySet()) {
                if (0 < sbQuery.length()) {
                    sbQuery.append("&");
                }
                if (StringUtils.isBlank(query.getKey()) && !StringUtils.isBlank(query.getValue())) {
                    sbQuery.append(query.getValue());
                }
                if (!StringUtils.isBlank(query.getKey())) {
                    sbQuery.append(query.getKey());
                    if (!StringUtils.isBlank(query.getValue())) {
                        sbQuery.append("=");
                        sbQuery.append(URLEncoder.encode(query.getValue(), "utf-8"));
                    }
                }
            }
            if (0 < sbQuery.length()) {
                sbUrl.append("?").append(sbQuery);
            }
        }
        return sbUrl.toString();
    }
 
    /**
     * 获取 HttpClient
     * @param host
     * @param path
     * @return
     */
    private static HttpClient wrapClient(String host,String path) {
        HttpClient httpClient = HttpClientBuilder.create().build();
        if (host != null && host.startsWith("https://")) {
            return sslClient();
        }else if (StringUtils.isBlank(host) && path != null && path.startsWith("https://")) {
            return sslClient();
        }
        return httpClient;
    }
 
    /**
     * 在调用SSL之前需要重写验证方法，取消检测SSL
     * 创建ConnectionManager，添加Connection配置信息
     * @return HttpClient 支持https
     */
    private static HttpClient sslClient() {
        try {
            // 在调用SSL之前需要重写验证方法，取消检测SSL
            X509TrustManager trustManager = new X509TrustManager() {
                @Override public X509Certificate[] getAcceptedIssuers() {
                    return null;
                }
                @Override public void checkClientTrusted(X509Certificate[] xcs, String str) {}
                @Override public void checkServerTrusted(X509Certificate[] xcs, String str) {}
            };
            SSLContext ctx = SSLContext.getInstance(SSLConnectionSocketFactory.TLS);
            ctx.init(null, new TrustManager[] { trustManager }, null);
            SSLConnectionSocketFactory socketFactory = new SSLConnectionSocketFactory(ctx, NoopHostnameVerifier.INSTANCE);
            // 创建Registry
            RequestConfig requestConfig = RequestConfig.custom().setCookieSpec(CookieSpecs.STANDARD_STRICT)
                    .setExpectContinueEnabled(Boolean.TRUE).setTargetPreferredAuthSchemes(Arrays.asList(AuthSchemes.NTLM,AuthSchemes.DIGEST))
                    .setProxyPreferredAuthSchemes(Arrays.asList(AuthSchemes.BASIC)).build();
            Registry socketFactoryRegistry = RegistryBuilder.create()
                    .register("http", PlainConnectionSocketFactory.INSTANCE)
                    .register("https",socketFactory).build();
            // 创建ConnectionManager，添加Connection配置信息
            PoolingHttpClientConnectionManager connectionManager = new PoolingHttpClientConnectionManager(socketFactoryRegistry);
            CloseableHttpClient closeableHttpClient = HttpClients.custom().setConnectionManager(connectionManager)
                    .setDefaultRequestConfig(requestConfig).build();
            return closeableHttpClient;
        } catch (KeyManagementException ex) {
            throw new RuntimeException(ex);
        } catch (NoSuchAlgorithmException ex) {
            throw new RuntimeException(ex);
        }
    }
 
    /**
     * 将结果转换成JSONObject
     * @param httpResponse
     * @return
     * @throws IOException
     */
    public static JSONObject getJson(HttpResponse httpResponse) throws IOException {
        HttpEntity entity = httpResponse.getEntity();
        String resp = EntityUtils.toString(entity, "UTF-8");
        EntityUtils.consume(entity);
        return JSON.parseObject(resp);
    }
}