• HTTP请求 工具类


    绕开SSL的http请求工具类:

    package com.brave.solid.utils;
    
    import org.apache.commons.lang.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.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.entity.ByteArrayEntity;
    import org.apache.http.entity.StringEntity;
    import org.apache.http.impl.client.CloseableHttpClient;
    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 org.springframework.stereotype.Component;
    
    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 admin
     */
    @Component
    public class HttpUtils {
    
        /**
         * get
         *
         * @param host
         * @param path
         * @param headers
         * @param queryMap
         * @return
         * @throws Exception
         */
        public static HttpResponse doGet(String host, String path,
                                         Map<String, String> headers,
                                         Map<String, String> queryMap)
                throws Exception {
            HttpClient httpClient = wrapClient(host, path);
            HttpGet request = new HttpGet(buildUrl(host, path, queryMap));
            for (Map.Entry<String, String> e : headers.entrySet()) {
                request.addHeader(e.getKey(), e.getValue());
            }
            request.setConfig(setTimeOutConfig(request.getConfig()));
            HttpResponse httpResponse = httpClient.execute(request);
            return httpClient.execute(request);
        }
    
        /**
         * post form
         *
         * @param host
         * @param path
         * @param headers
         * @param queryMap
         * @param bodyMap
         * @return
         * @throws Exception
         */
        public static HttpResponse doPost(String host, String path,
                                          Map<String, String> headers,
                                          Map<String, String> queryMap,
                                          Map<String, String> bodyMap)
                throws Exception {
            HttpClient httpClient = wrapClient(host, path);
            HttpPost request = new HttpPost(buildUrl(host, path, queryMap));
            for (Map.Entry<String, String> e : headers.entrySet()) {
                request.addHeader(e.getKey(), e.getValue());
            }
            request.setConfig(setTimeOutConfig(request.getConfig()));
            if (bodyMap != null && bodyMap.size() > 0) {
                List<NameValuePair> nameValuePairList = new ArrayList<NameValuePair>();
    
                for (String key : bodyMap.keySet()) {
                    nameValuePairList.add(new BasicNameValuePair(key, bodyMap.get(key)));
                }
                UrlEncodedFormEntity formEntity = new UrlEncodedFormEntity(nameValuePairList, "utf-8");
                formEntity.setContentType("application/json");
                request.setEntity(formEntity);
            }
            return httpClient.execute(request);
        }
    
        /**
         * Post String
         *
         * @param host
         * @param path
         * @param headers
         * @param queryMap
         * @param body
         * @return
         * @throws Exception
         */
        public static HttpResponse doPost(String host, String path,
                                          Map<String, String> headers,
                                          Map<String, String> queryMap,
                                          String body)
                throws Exception {
            HttpClient httpClient = wrapClient(host, path);
            HttpPost request = new HttpPost(buildUrl(host, path, queryMap));
            for (Map.Entry<String, String> e : headers.entrySet()) {
                request.addHeader(e.getKey(), e.getValue());
            }
            if (StringUtils.isNotBlank(body)) {
                request.setEntity(new StringEntity(body, "utf-8"));
            }
            request.setConfig(setTimeOutConfig(request.getConfig()));
            return httpClient.execute(request);
        }
    
        /**
         * Post stream
         *
         * @param host
         * @param path
         * @param headers
         * @param queryMap
         * @param body
         * @return
         * @throws Exception
         */
        public static HttpResponse doPost(String host, String path,
                                          Map<String, String> headers,
                                          Map<String, String> queryMap,
                                          byte[] body)
                throws Exception {
            HttpClient httpClient = wrapClient(host, path);
            HttpPost request = new HttpPost(buildUrl(host, path, queryMap));
            for (Map.Entry<String, String> e : headers.entrySet()) {
                request.addHeader(e.getKey(), e.getValue());
            }
            if (body != null) {
                request.setEntity(new ByteArrayEntity(body));
            }
            request.setConfig(setTimeOutConfig(request.getConfig()));
            return httpClient.execute(request);
        }
    
        /**
         * Put String
         *
         * @param host
         * @param path
         * @param headers
         * @param queryMap
         * @param body
         * @return
         * @throws Exception
         */
        public static HttpResponse doPut(String host, String path,
                                         Map<String, String> headers,
                                         Map<String, String> queryMap,
                                         String body)
                throws Exception {
            HttpClient httpClient = wrapClient(host, path);
            HttpPut request = new HttpPut(buildUrl(host, path, queryMap));
            for (Map.Entry<String, String> e : headers.entrySet()) {
                request.addHeader(e.getKey(), e.getValue());
            }
            if (StringUtils.isNotBlank(body)) {
                request.setEntity(new StringEntity(body, "utf-8"));
            }
            request.setConfig(setTimeOutConfig(request.getConfig()));
            return httpClient.execute(request);
        }
    
        /**
         * Put stream
         *
         * @param host
         * @param path
         * @param headers
         * @param queryMap
         * @param body
         * @return
         * @throws Exception
         */
        public static HttpResponse doPut(String host, String path,
                                         Map<String, String> headers,
                                         Map<String, String> queryMap,
                                         byte[] body)
                throws Exception {
            HttpClient httpClient = wrapClient(host, path);
            HttpPut request = new HttpPut(buildUrl(host, path, queryMap));
            for (Map.Entry<String, String> e : headers.entrySet()) {
                request.addHeader(e.getKey(), e.getValue());
            }
            if (body != null) {
                request.setEntity(new ByteArrayEntity(body));
            }
            request.setConfig(setTimeOutConfig(request.getConfig()));
            return httpClient.execute(request);
        }
    
        /**
         * Delete
         *
         * @param host
         * @param path
         * @param headers
         * @param queryMap
         * @return
         * @throws Exception
         */
        public static HttpResponse doDelete(String host, String path,
                                            Map<String, String> headers,
                                            Map<String, String> queryMap)
                throws Exception {
            HttpClient httpClient = wrapClient(host, path);
            HttpDelete request = new HttpDelete(buildUrl(host, path, queryMap));
            for (Map.Entry<String, String> e : headers.entrySet()) {
                request.addHeader(e.getKey(), e.getValue());
            }
            request.setConfig(setTimeOutConfig(request.getConfig()));
            return httpClient.execute(request);
        }
    
        /**
         * 构建请求的 url
         *
         * @param host
         * @param path
         * @param queryMap
         * @return
         * @throws UnsupportedEncodingException
         */
        private static String buildUrl(String host, String path, Map<String, String> queryMap) throws UnsupportedEncodingException {
            StringBuilder sbUrl = new StringBuilder();
            if (!StringUtils.isBlank(host)) {
                sbUrl.append(host);
            }
            if (!StringUtils.isBlank(path)) {
                sbUrl.append(path);
            }
            if (null != queryMap) {
                StringBuilder sbQuery = new StringBuilder();
                for (Map.Entry<String, String> query : queryMap.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<ConnectionSocketFactory> socketFactoryRegistry = RegistryBuilder.<ConnectionSocketFactory>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);
            }
        }
    
        /**
         * 设置 连接超时、 请求超时 、 读取超时  毫秒
         *
         * @param requestConfig
         * @return
         */
        private static RequestConfig setTimeOutConfig(RequestConfig requestConfig) {
            if (requestConfig == null) {
                requestConfig = RequestConfig.DEFAULT;
            }
            return RequestConfig.copy(requestConfig)
                    .setConnectionRequestTimeout(60000)
                    .setConnectTimeout(60000)
                    .setSocketTimeout(10000)
                    .build();
        }
    
        /**
         * 将结果转换成 String
         *
         * @param httpResponse
         * @return
         * @throws IOException
         */
        public static String parseString(HttpResponse httpResponse) throws IOException {
            HttpEntity entity = httpResponse.getEntity();
            String resp = EntityUtils.toString(entity, "UTF-8");
            EntityUtils.consume(entity);
            return resp;
        }
    }
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  • 原文地址:https://www.cnblogs.com/junbaba/p/13664132.html
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