OkHttpClient实现http请求异步

本是古典何须时尚 2022-09-15 11:54 293阅读 0赞

1、AsyncHttpTest

package com.http.file;
    
    import com.alibaba.fastjson.JSON;
    
    import java.util.Arrays;
    import java.util.HashMap;
    import java.util.List;
    
    public class AsyncHttpTest {
    
        public static void doPost(String url, Object req) {
    
            String reqJson = JSON.toJSONString(req);
    
            HttpClientUtils.doAsyncPost(url, null, reqJson, MediaTypes.APPLICATION_JSON_UTF8, new ResultCallBack() {
    
                @Override
                public void onRequestFailure(String url, Exception e) {
                    System.out.println("请求失败：" + e.getMessage());
                }
    
                @Override
                public void onResponseFailure(String url, int code, String responseBody) {
                    System.out.println("响应失败：" + code);
                }
    
                @Override
                public void onSuccess(String url, String responseBody) {
                    System.out.println("http异步请求线程名称:" + Thread.currentThread().getName());
                    System.out.println("请求成功：" + responseBody);
                    return;
                }
            });
        }
    
        public static void main(String[] args) throws Exception {
            System.out.println("主线程名称：" + Thread.currentThread().getName());
            String url = "http://47.104.128.174:8063/api/sidebar/dicConfig/findDic";
            List<String> array = Arrays.asList("gender");
            AsyncHttpTest.doPost(url, array);
    
            Thread.sleep(3000);
    
            System.out.println("-----------------------------------------------------");
            String reqStr = JSON.toJSONString(array);
            String res = HttpClientUtils.doPost(url, new HashMap<>(), reqStr, MediaTypes.APPLICATION_JSON_UTF8);
            System.out.println("http同步请求，响应结果：" + res);
    
        }
    
    }

2、HttpClientUtils

package com.http.file;
    
    import com.alibaba.fastjson.JSON;
    import lombok.extern.slf4j.Slf4j;
    import okhttp3.*;
    import org.apache.commons.collections4.MapUtils;
    import org.apache.commons.lang.StringUtils;
    
    import javax.net.ssl.*;
    import java.io.IOException;
    import java.io.UnsupportedEncodingException;
    import java.net.URLEncoder;
    import java.security.SecureRandom;
    import java.security.cert.CertificateException;
    import java.security.cert.X509Certificate;
    import java.util.Arrays;
    import java.util.Map;
    import java.util.concurrent.TimeUnit;
    
    @Slf4j
    public class HttpClientUtils {
        /**
         * 超时参数
         */
        private static final int CONNECT_TIME_OUT = 120;
        private static final int READ_TIME_OUT = 60;
        private static final int WRITE_TIME_OUT = 60;
        private static OkHttpClient HTTP_CLIENT;
    
        static {
            HTTP_CLIENT = new OkHttpClient.Builder()
                    //为构建者填充超时时间
                    .connectTimeout(CONNECT_TIME_OUT, TimeUnit.SECONDS)///连接超时
                    .readTimeout(READ_TIME_OUT, TimeUnit.SECONDS)
                    .writeTimeout(WRITE_TIME_OUT, TimeUnit.SECONDS)
                    //允许重定向
                    .followRedirects(true)
                    .sslSocketFactory(createSSLSocketFactory(), new TrustAllManager())
                    .hostnameVerifier(new TrustAllHostnameVerifier())
                    .connectionPool(new ConnectionPool(300, 5, TimeUnit.MINUTES))
                    .connectionSpecs(Arrays.asList(ConnectionSpec.MODERN_TLS, ConnectionSpec.COMPATIBLE_TLS,
                            ConnectionSpec.CLEARTEXT))
                    .build();
        }
    
        public static SSLSocketFactory createSSLSocketFactory() {
            SSLSocketFactory sSLSocketFactory = null;
            try {
                SSLContext sc = SSLContext.getInstance("TLS");
                sc.init(null, new TrustManager[]{new TrustAllManager()},
                        new SecureRandom());
                sSLSocketFactory = sc.getSocketFactory();
            } catch (Exception ignored) {
            }
            return sSLSocketFactory;
        }
    
        public static class TrustAllManager implements 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 new X509Certificate[0];
            }
        }
    
        public static class TrustAllHostnameVerifier implements HostnameVerifier {
            @Override
            public boolean verify(String hostname, SSLSession session) {
                return true;
            }
        }
    
        /**
         * json参数的同步get请求 返回对象
         *
         * @param url    请求URL
         * @param header 请求头
         * @param clazz  返回对象类型
         * @return 返回对象
         */
        public static <E> E doGetReturnJson(String url, Map<String, String> header, Class<E> clazz) {
            String result = doGet(url, header);
            if (StringUtils.isBlank(result)) {
                return null;
            }
            return JSON.parseObject(result, clazz);
        }
    
        /**
         * json参数的同步Post请求 返回对象
         *
         * @param url         请求URL
         * @param header      请求头
         * @param requestBody 请求报文
         * @param mediaType   请求类型
         * @param clazz       返回对象类型
         * @return 返回对象
         */
        public static <E> E doPostReturnJson(String url, Map<String, String> header, String requestBody,
                                             MediaTypes mediaType, Class<E> clazz) {
            String result = doPost(url, header, requestBody, mediaType);
            if (StringUtils.isBlank(result)) {
                return null;
            }
            return JSON.parseObject(result, clazz);
        }
    
        /**
         * json参数的同步Post请求
         *
         * @param url     请求url
         * @param jsonStr 请求json
         * @return return message
         */
        public static String doPostWithJson(String url, String jsonStr) {
            return doPost(url, null, jsonStr, MediaTypes.APPLICATION_JSON_UTF8);
        }
    
        /**
         * xml参数的同步Post请求
         *
         * @param url    请求url
         * @param xmlStr 请求xml
         * @return return message
         */
        public static String doPostWithXml(String url, String xmlStr) {
            return doPost(url, null, xmlStr, MediaTypes.APPLICATION_XML_UTF8);
        }
    
        public static String doPut(String url, Map<String, String> formMap) {
            return doPut(url, formMap, MediaTypes.APPLICATION_FORM_UTF8);
        }
    
        public static String doDelete(String url) {
            Request.Builder builder = new Request.Builder().delete().url(url);
            return execute(url, builder.build());
        }
    
        /**
         * 同步Get请求
         *
         * @param url    请求url
         * @param header 请求头参数
         * @return 返回报文
         */
        public static String doGet(String url, Map<String, String> header) {
            Request.Builder builder = new Request.Builder().get().url(url);
            if (MapUtils.isNotEmpty(header)) {
                for (Map.Entry<String, String> entry : header.entrySet()) {
                    builder.addHeader(entry.getKey(), entry.getValue());
                }
            }
            return execute(url, builder.build());
        }
    
        /**
         * 同步Get请求
         *
         * @param url 请求url
         * @return 返回报文
         */
        public static byte[] doGetReturnBytes(String url) {
            Request.Builder builder = new Request.Builder().get().url(url);
            return executeBytes(url, builder.build());
        }
    
        /**
         * 同步Get请求
         *
         * @param url 请求url
         * @return 返回报文
         */
        public static byte[] doGetReturnBytes(String url, Map<String, String> header) {
            Request.Builder builder = new Request.Builder().get().url(url);
            if (MapUtils.isNotEmpty(header)) {
                for (Map.Entry<String, String> entry : header.entrySet()) {
                    builder.addHeader(entry.getKey(), entry.getValue());
                }
            }
            return executeBytes(url, builder.build());
        }
    
        /**
         * 同步Get请求
         *
         * @param url 请求url
         * @return 返回响应体
         */
        public static Response doGet(String url) {
            Request.Builder builder = new Request.Builder().get().url(url);
            log.info("执行请求[{}]", url);
            try {
                return HTTP_CLIENT.newCall(builder.build()).execute();
            } catch (IOException e) {
                throw new HttpClientException("执行请求[" + url + "]失败", e);
            }
        }
    
        /**
         * 同步Post请求
         *
         * @param url 请求url
         * @return 返回报文
         */
        public static byte[] doPostReturnBytes(String url) {
            Request.Builder builder = new Request.Builder().post(
                    RequestBody.create(MediaTypes.APPLICATION_FORM_UTF8.getMediaType(), "")).url(url);
            return executeBytes(url, builder.build());
        }
    
        public static byte[] doPostReturnBytes(String url, String requestBody, MediaTypes mediaType) {
            RequestBody body = RequestBody.create(mediaType.getMediaType(), requestBody);
            Request.Builder builder = new Request.Builder()
                    .post(body)
                    .url(url);
            return executeBytes(url, builder.build());
        }
    
        /**
         * 同步Post请求
         *
         * @param url         请求url
         * @param header      请求头参数
         * @param requestBody 请求体参数
         * @param mediaType   请求类型
         * @return 返回报文
         */
        public static String doPost(String url, Map<String, String> header, String requestBody, MediaTypes mediaType) {
            RequestBody body = RequestBody.create(mediaType.getMediaType(), requestBody);
            return doPost(url, header, body);
        }
    
        public static String doPost(String url, Map<String, String> header, RequestBody requestBody) {
            Request.Builder builder = new Request.Builder()
                    .post(requestBody)
                    .url(url);
            if (MapUtils.isNotEmpty(header)) {
                for (Map.Entry<String, String> entry : header.entrySet()) {
                    builder.addHeader(entry.getKey(), entry.getValue());
                }
            }
            return execute(url, builder.build());
        }
    
        public static String doPut(String url, Map<String, String> formMap, MediaTypes mediaType) {
            FormBody.Builder bodyBuilder = new FormBody.Builder();
            if (MapUtils.isNotEmpty(formMap)) {
                for (Map.Entry<String, String> entry : formMap.entrySet()) {
                    bodyBuilder.add(entry.getKey(), entry.getValue());
                }
            }
    
            Request.Builder builder = new Request.Builder()
                    .put(bodyBuilder.build())
                    .url(url);
    
            return execute(url, builder.build());
        }
    
        /**
         * 异步Get请求
         *
         * @param url      请求url
         * @param header   请求头参数
         * @param callBack 异步通知接口，调用方实现
         */
        public static void doAsyncGet(String url, Map<String, String> header, ResultCallBack callBack) {
            Request.Builder builder = new Request.Builder().get().url(url);
            if (MapUtils.isNotEmpty(header)) {
                for (Map.Entry<String, String> entry : header.entrySet()) {
                    builder.addHeader(entry.getKey(), entry.getValue());
                }
            }
            asyncExecute(callBack, builder.build());
        }
    
        /**
         * 异步Post请求
         *
         * @param url         请求url
         * @param header      请求头参数
         * @param requestBody 请求体参数
         * @param mediaType   请求类型
         * @param callBack    异步通知接口，调用方实现
         */
        public static void doAsyncPost(String url, Map<String, String> header, String requestBody, MediaTypes mediaType,
                                       ResultCallBack callBack) {
            Request.Builder builder = new Request.Builder()
                    .post(RequestBody.create(mediaType.getMediaType(), requestBody))
                    .url(url);
            if (MapUtils.isNotEmpty(header)) {
                for (Map.Entry<String, String> entry : header.entrySet()) {
                    builder.addHeader(entry.getKey(), entry.getValue());
                }
            }
            asyncExecute(callBack, builder.build());
        }
    
        public static String buildUrl(String url, Map<String, String> querys) throws UnsupportedEncodingException {
            StringBuilder sbUrl = new StringBuilder();
            sbUrl.append(url);
            if (null != querys) {
                StringBuilder sbQuery = new StringBuilder();
                for (Map.Entry<String, String> 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();
        }
    
        /**
         * 同步执行http请求
         *
         * @param url     请求url
         * @param request 请求request对象
         * @return String 返回报文
         */
        private static String execute(String url, Request request) {
            log.info("执行请求[{}]", url);
            try (Response response = HTTP_CLIENT.newCall(request).execute()) {
    
                ResponseBody body = response.body();
                String responseBody = (body == null ? null : body.string());
    
                if (!response.isSuccessful()) {
                    log.error("执行请求[{}]失败, 响应码：{}, 响应体：{}", url, response.code(), responseBody);
                    throw new HttpClientException("执行请求[" + url + "]失败");
                }
                return responseBody;
            } catch (IOException e) {
                throw new HttpClientException("执行请求[" + url + "]失败", e);
            }
        }
    
        /**
         * 异步执行http请求
         *
         * @param callBack 异步通知接口，调用方实现
         * @param request  请求request对象
         */
        private static void asyncExecute(ResultCallBack callBack, final Request request) {
            String url = request.url().toString();
            log.info("执行请求[{}]", url);
            HTTP_CLIENT.newCall(request).enqueue(new Callback() {
    
                @Override
                public void onFailure(Call call, IOException e) {
                    callBack.onRequestFailure(call.request().url().toString(), e);
                }
    
                @Override
                public void onResponse(Call call, Response response) throws IOException {
    
                    ResponseBody body = response.body();
                    String responseBody = (body == null ? null : body.string());
    
                    if (!response.isSuccessful()) {
                        log.error("执行请求[{}]失败, 响应码：{}, 响应体：{}", url, response.code(), responseBody);
                        callBack.onResponseFailure(url, response.code(), responseBody);
                        return;
                    }
                    log.info("执行请求[{}]成功, 响应码：{}", url, response.code());
                    callBack.onSuccess(call.request().url().toString(), responseBody);
                }
            });
        }
    
        /**
         * 同步执行http请求
         *
         * @param url     请求url
         * @param request 请求request对象
         * @return byte[] 返回报文
         */
        private static byte[] executeBytes(String url, Request request) {
            log.info("执行请求[{}]", url);
            try (Response response = HTTP_CLIENT.newCall(request).execute()) {
    
                ResponseBody body = response.body();
                byte[] bytes = (body == null ? null : body.bytes());
    
                if (!response.isSuccessful()) {
                    log.error("执行请求[{}]失败, 响应码：{}", url, response.code());
                    throw new HttpClientException("执行请求[" + url + "]失败");
                }
                return bytes;
            } catch (IOException e) {
                throw new HttpClientException("执行请求[" + url + "]失败", e);
            }
        }
    
    }

3、ResultCallBack

package com.http.file;
    
    
    public interface ResultCallBack {
    
        /**
         * 请求失败，默认抛出{@link HttpClientException}
         *
         * @param url 请求url
         * @param e   异常
         */
        default void onRequestFailure(String url, Exception e) {
            throw new HttpClientException("执行请求[" + url + "]失败", e);
        }
    
        /**
         * 响应失败，默认抛出{@link HttpClientException}
         *
         * @param url          请求url
         * @param code         响应码
         * @param responseBody 响应体
         */
        default void onResponseFailure(String url, int code, String responseBody) {
            throw new HttpClientException("执行请求[" + url + "]失败");
        }
    
        /**
         * 响应成功
         *
         * @param url          请求url
         * @param responseBody 响应体
         */
        void onSuccess(String url, String responseBody);
    }

4、HttpClientException

package com.http.file;
    
    public class HttpClientException extends RuntimeException{
    
        public HttpClientException() {
        }
    
        public HttpClientException(String message) {
            super(message);
        }
    
        public HttpClientException(String message, Throwable cause) {
            super(message, cause);
        }
    
        public HttpClientException(Throwable cause) {
            super(cause);
        }
    
        public HttpClientException(String message, Throwable cause, boolean enableSuppression, boolean writableStackTrace) {
            super(message, cause, enableSuppression, writableStackTrace);
        }
    }

5、MediaTypes

package com.http.file;
    
    import okhttp3.MediaType;
    
    public enum MediaTypes {
        /**
         * APPLICATION_JSON
         */
        APPLICATION_JSON(MediaType.get("application/json")),
        /**
         * APPLICATION_JSON_UTF8
         */
        APPLICATION_JSON_UTF8(MediaType.get("application/json;charset=UTF-8")),
        /**
         * APPLICATION_XML
         */
        APPLICATION_XML(MediaType.get("application/xml")),
        /**
         * APPLICATION_XML_UTF8
         */
        APPLICATION_XML_UTF8(MediaType.get("application/xml;charset=UTF-8")),
    
    
        APPLICATION_FORM_UTF8(MediaType.get("application/x-www-form-urlencoded"));
    
    
        private MediaType mediaType;
    
        MediaTypes(MediaType mediaType) {
            this.mediaType = mediaType;
        }
    
        public MediaType getMediaType() {
            return mediaType;
        }
    }