• OkHttp工具类


    package com.lonely.utils;
    
    import com.ztkj.common.log.interceptors.HttpLogInterceptor;
    import okhttp3.*;
    import org.apache.http.client.utils.URIBuilder;
    import org.slf4j.Logger;
    import org.slf4j.LoggerFactory;
    
    import javax.net.ssl.*;
    import java.io.IOException;
    import java.net.MalformedURLException;
    import java.net.URISyntaxException;
    import java.security.SecureRandom;
    import java.security.cert.CertificateException;
    import java.security.cert.X509Certificate;
    import java.util.HashMap;
    import java.util.Iterator;
    import java.util.Map;
    import java.util.Set;
    import java.util.concurrent.TimeUnit;
    
    /**
     * @author lonely
     * @Date 2019/9/2 14:05
     * @Description 基于okhttp的工具类
     */
    public class OkHttpUtil {
    
        private static final Logger logger = LoggerFactory.getLogger(OkHttpUtil.class);
    
        public final static int READ_TIMEOUT = 100;
        public final static int CONNECT_TIMEOUT = 60;
        public final static int WRITE_TIMEOUT = 60;
        public static final MediaType JSON = MediaType.parse("application/json; charset=utf-8");
    
        private static final String CONTENT_TYPE = "Content-Type";
    
        private static final byte[] LOCKER = new byte[0];
        private static OkHttpUtil mInstance;
        private OkHttpClient mOkHttpClient;
    
    
        private OkHttpUtil() {
            //todo 由于是静态工具类,只会创建client一次,如果以后需要不同请求不同超时时间,不能这样使用
            okhttp3.OkHttpClient.Builder clientBuilder = new okhttp3.OkHttpClient.Builder();
            //设置读取超市时间
            clientBuilder.readTimeout(READ_TIMEOUT, TimeUnit.SECONDS);
            //设置超时连接时间
            clientBuilder.connectTimeout(CONNECT_TIMEOUT, TimeUnit.SECONDS);
            //设置写入超时时间
            clientBuilder.writeTimeout(WRITE_TIMEOUT, TimeUnit.SECONDS);
            //支持HTTPS请求,跳过证书验证
            clientBuilder.sslSocketFactory(createSSLSocketFactory());
            clientBuilder.hostnameVerifier(new HostnameVerifier() {
                @Override
                public boolean verify(String hostname, SSLSession session) {
                    return true;
                }
            });
    
            //添加拦截器
            clientBuilder.addInterceptor(new HttpLogInterceptor());
            mOkHttpClient = clientBuilder.build();
        }
    
        /**
         * 单例模式获取NetUtils
         *
         * @return
         */
        public static OkHttpUtil getInstance() {
            if (mInstance == null) {
                synchronized (LOCKER) {
                    if (mInstance == null) {
                        mInstance = new OkHttpUtil();
                    }
                }
            }
            return mInstance;
        }
    
    
        /**
         * get请求,同步方式,获取网络数据,是在主线程中执行的,需要新起线程,将其放到子线程中执行
         *
         * @param url
         * @return
         */
        public Response getData(String url) {
            return getData(url, null);
        }
    
    
        /**
         * get请求,同步方式,获取网络数据,是在主线程中执行的,需要新起线程,将其放到子线程中执行
         *
         * @param url
         * @return
         */
        public Response getData(String url, Map<String, String> headerMap) {
            //1 构造Request
            Request.Builder builder = new Request.Builder().get().url(url);
            //Request request = builder.get().url(url).build();
            //builder = builder.get().url(url);
            /*if (headerMap != null && headerMap.isEmpty()) {
                for (Map.Entry<String, String> headerEntry : headerMap.entrySet()) {
                    builder.addHeader(headerEntry.getKey(), headerEntry.getValue());
                }
            }*/
            addHeaders(headerMap,builder);
            Request request = builder.build();
    
    
            //2 将Request封装为Call
            Call call = mOkHttpClient.newCall(request);
            //3 执行Call,得到response
            Response response = null;
            try {
                response = call.execute();
            } catch (IOException e) {
                e.printStackTrace();
            }
            return response;
        }
    
        /**
         * post form表单 请求,同步方式,提交数据,是在主线程中执行的,需要新起线程,将其放到子线程中执行
         *
         * @param url
         * @param bodyParams
         * @return
         */
        /*public Response postFormData(String url, Map<String, String> bodyParams) {
            //1构造RequestBody
            RequestBody body = setRequestBody(bodyParams);
            //2 构造Request
            Request.Builder requestBuilder = new Request.Builder();
            Request request = requestBuilder.post(body).addHeader(CONTENT_TYPE, HttpContentTypeEnum.FORM.contentTypeValue).url(url).build();
            //3 将Request封装为Call
            Call call = mOkHttpClient.newCall(request);
            //4 执行Call,得到response
            Response response = null;
            try {
                response = call.execute();
            } catch (IOException e) {
                e.printStackTrace();
            }
            return response;
        }*/
    
        /**
         * post方式
         *
         * @param url        请求url
         * @param bodyParams requestbody
         * @param headerMap  请求头信息
         * @return
         * @throws IOException
         */
        public Response postData(String url, Map<String, Object> bodyParams, Map<String, String> headerMap) throws Exception {
            //1构造RequestBody
            RequestBody body = setRequestBody(bodyParams, headerMap);
            //2 构造Request
            Request.Builder requestBuilder = new Request.Builder().post(body).url(url);
            //requestBuilder = requestBuilder.post(body).url(url);
            addHeaders(headerMap, requestBuilder);
            Request request = requestBuilder.build();
            //Request request = requestBuilder.post(body).addHeader(CONTENT_TYPE, HttpContentTypeEnum.JSON.contentTypeValue).url(url).build();
            //3 将Request封装为Call
            Call call = mOkHttpClient.newCall(request);
            //4 执行Call,得到response
            Response response = null;
            try {
                response = call.execute();
            } catch (IOException e) {
                e.printStackTrace();
            }
            return response;
        }
    
    
        /**
         * put请求方式
         *
         * @param url
         * @param bodyParams
         * @return
         */
        public Response putData(String url, Map<String, Object> bodyParams, Map<String, String> headerMap) throws Exception {
            //1构造RequestBody
            RequestBody body = setRequestBody(bodyParams, headerMap);
            //2 构造Request
            Request.Builder requestBuilder = new Request.Builder().put(body).url(url);
            addHeaders(headerMap, requestBuilder);
            Request request = requestBuilder.build();
            //3 将Request封装为Call
            Call call = mOkHttpClient.newCall(request);
            //4 执行Call,得到response
            Response response = null;
            try {
                response = call.execute();
            } catch (IOException e) {
                e.printStackTrace();
            }
            return response;
    
        }
    
    
        /**
         * @param url
         * @param bodyParams
         * @return
         */
        public Response delData(String url, Map<String, Object> bodyParams, Map<String, String> headerMap) throws Exception {
            //1构造RequestBody
            RequestBody body = setRequestBody(bodyParams, headerMap);
            //2 构造Request
            Request.Builder requestBuilder = new Request.Builder().delete(body).url(url);
            addHeaders(headerMap, requestBuilder);
            Request request = requestBuilder.build();
            //3 将Request封装为Call
            Call call = mOkHttpClient.newCall(request);
            //4 执行Call,得到response
            Response response = null;
            try {
                response = call.execute();
            } catch (IOException e) {
                e.printStackTrace();
            }
            return response;
        }
    
    
        /**
         * post的请求参数,构造RequestBody
         *
         * @param bodyParams
         * @return
         */
        private RequestBody setRequestBody(Map<String, Object> bodyParams, Map<String, String> headerMap) throws Exception {
            //判断请求头中是否存在 content-type字段
            if (headerMap == null || !headerMap.containsKey(CONTENT_TYPE)) {
                throw new Exception("请求头信息配置中无 Content-Type配置,请先配置");
            }
    
            String contentType = headerMap.get(CONTENT_TYPE);
            if ("application/x-www-form-urlencoded".equals(contentType)) {
                //表单提交 就是key-value 都是字符串型
                //转换
                Map<String, String> strBodyParamMap = new HashMap<>();
                if (bodyParams != null && !bodyParams.isEmpty()) {
                    bodyParams.forEach((key, value) -> {
                        if (value != null) {
                            strBodyParamMap.put(key, (String) value);
                        }
                    });
                }
                return buildRequestBodyByMap(strBodyParamMap);
            } else {
                //json
                return buildRequestBodyByJson(com.alibaba.fastjson.JSON.toJSONString(bodyParams));
            }
    
        }
    
        /**
         * 表单方式提交构建
         *
         * @param bodyParams
         * @return
         */
        private RequestBody buildRequestBodyByMap(Map<String, String> bodyParams) {
            RequestBody body = null;
            okhttp3.FormBody.Builder formEncodingBuilder = new okhttp3.FormBody.Builder();
            if (bodyParams != null) {
                Iterator<String> iterator = bodyParams.keySet().iterator();
                String key = "";
                while (iterator.hasNext()) {
                    key = iterator.next().toString();
                    formEncodingBuilder.add(key, bodyParams.get(key));
                    logger.info(" 请求参数:{},请求值:{} ", key, bodyParams.get(key));
                }
            }
            body = formEncodingBuilder.build();
            return body;
        }
    
        /**
         * json方式提交构建
         *
         * @param jsonStr
         * @return
         */
        private RequestBody buildRequestBodyByJson(String jsonStr) {
            return RequestBody.create(JSON, jsonStr);
        }
    
    
        /**
         * 生成安全套接字工厂,用于https请求的证书跳过
         *
         * @return
         */
        public SSLSocketFactory createSSLSocketFactory() {
            SSLSocketFactory ssfFactory = null;
            try {
                SSLContext sc = SSLContext.getInstance("TLS");
                sc.init(null, new TrustManager[]{new TrustAllCerts()}, new SecureRandom());
                ssfFactory = sc.getSocketFactory();
            } catch (Exception e) {
            }
            return ssfFactory;
        }
    
    
        /**
         * 针对json post处理
         *
         * @param url
         * @param json
         * @return
         * @throws IOException
         */
        public String postJson(String url, String json) throws IOException {
            RequestBody body = RequestBody.create(JSON, json);
            Request request = new Request.Builder()
                    .url(url)
                    .post(body)
                    .build();
            Response response = mOkHttpClient.newCall(request).execute();
            if (response.isSuccessful()) {
                return response.body().string();
            } else {
                throw new IOException("Unexpected code " + response);
            }
        }
    
        public void postJsonAsyn(String url, String json, final MyNetCall myNetCall) throws IOException {
            RequestBody body = RequestBody.create(JSON, json);
            //2 构造Request
            Request.Builder requestBuilder = new Request.Builder();
            Request request = requestBuilder.post(body).url(url).build();
            //3 将Request封装为Call
            Call call = mOkHttpClient.newCall(request);
            //4 执行Call
            call.enqueue(new Callback() {
                @Override
                public void onFailure(Call call, IOException e) {
                    myNetCall.failed(call, e);
                }
    
                @Override
                public void onResponse(Call call, Response response) throws IOException {
                    myNetCall.success(call, response);
    
                }
            });
        }
    
        /**
         * 自定义网络回调接口
         */
        public interface MyNetCall {
            void success(Call call, Response response) throws IOException;
    
            void failed(Call call, IOException e);
        }
    
        /**
         * 构建http get请求,将参数拼接到url后面
         *
         * @param url
         * @param para
         * @return
         * @throws URISyntaxException
         * @throws MalformedURLException
         */
        public static String buildHttpGet(String url, Map<String, Object> para)
                throws URISyntaxException, MalformedURLException {
            URIBuilder builder = new URIBuilder(url);
            Set<String> set = para.keySet();
            for (String key : set) {
                builder.setParameter(key, String.valueOf(para.get(key)));
            }
            return builder.build().toURL().toString();
        }
    
    
        /**
         * 添加header信息
         *
         * @param headerMap
         * @param builder
         * @return
         */
        private static Request.Builder addHeaders(Map<String, String> headerMap, Request.Builder builder) {
            if (headerMap != null && !headerMap.isEmpty()) {
                headerMap.forEach((key, value) -> builder.addHeader(key, value));
            }
            return builder;
        }
    
        /**
         * 用于信任所有证书
         */
        class TrustAllCerts implements X509TrustManager {
            @Override
            public void checkClientTrusted(X509Certificate[] x509Certificates, String s) throws CertificateException {
            }
    
            @Override
            public void checkServerTrusted(X509Certificate[] x509Certificates, String s) throws CertificateException {
    
            }
    
            @Override
            public X509Certificate[] getAcceptedIssuers() {
                return new X509Certificate[0];
            }
        }
    
    }
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  • 原文地址:https://www.cnblogs.com/duguxiaobiao/p/12092030.html
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