Apache HttpClient和HttpAsyncClient应用

官网地址 http://hc.apache.org/
官方PDF地址: http://hc.apache.org/httpcomponents-core-ga/tutorial/pdf/httpcore-tutorial.pdf

HttpClient是基于HttpCore的HTTP / 1.1兼容HTTP代理实现。 它还为客户端身份验证,HTTP状态管理和HTTP连接管理提供可重用的组件。 HttpComponents Client是Commons HttpClient 3.x的继承者和替代者。 强烈建议Commons HttpClient用户进行升级。
HttpClient 特性

  • 基于标准的纯Java,HTTP版本1.0和1.1的实现
  • 在可扩展的OO框架中完全实现所有HTTP方法(GET,POST,PUT,DELETE,HEAD,OPTIONS和TRACE)。
  • 支持使用HTTPS(基于SSL的HTTP)协议进行加密。
  • 通过HTTP代理的透明连接。
  • 通过CONNECT方法通过HTTP代理建立的HTTPS连接隧道。
  • 基本,摘要,NTLMv1,NTLMv2,NTLM2会话,SNPNEGO,Kerberos身份验证方案。
  • 用于自定义身份验证方案的插件机制。
  • 可插拔的安全套接字工厂,使使用第三方解决方案更加容易
  • 在多线程应用程序中使用的连接管理支持。支持设置
  • 最大总连接数以及每个主机的最大连接数。检测并关闭陈旧的连接。
  • 自动Cookie处理,用于从服务器读取Set-Cookie:标头,并在适当时在Cookie:标头中发回。
  • 自定义Cookie策略的插件机制。
  • 请求输出流,以避免通过直接流到服务器的套接字来缓冲任何内容主体。
  • 响应输入流,通过直接从套接字流传输到服务器来有效读取响应主体。
  • 在HTTP / 1.0中使用KeepAlive的持久连接和在HTTP / 1.1中的持久性
  • 直接访问服务器发送的响应代码和标头。
  • 设置连接超时的能力。
  • 支持HTTP / 1.1响应缓存。

Asynch HttpClient是基于HttpCore NIO和HttpClient组件的HTTP / 1.1兼容HTTP代理实现。 它是Apache HttpClient的补充模块,适用于特殊情况,在特殊情况下,就原始数据吞吐量而言,处理大量并发连接的能力比性能更为重要。
HttpAsyncClient特性

  • 基于标准的纯Java,HTTP版本1.0和1.1的实现
  • 在可扩展的OO框架中完全实现所有HTTP方法(GET,POST,PUT,DELETE,HEAD,OPTIONS和TRACE)。
  • 支持使用HTTPS(基于SSL的HTTP)协议进行加密。
  • 通过HTTP代理的透明连接。\
  • 通过CONNECT方法通过HTTP代理建立的HTTPS连接隧道。
  • 连接管理支持并发请求执行。支持设置最大总连接数以及每个主机的最大连接数。检测并关闭过期的连接。
  • 在HTTP / 1.0中使用KeepAlive的持久连接和在HTTP / 1.1中的持久性
  • 设置连接超时的能力。
  • 源代码可根据Apache许可免费获得。
  • 基本,摘要,NTLMv1,NTLMv2,NTLM2会话,SNPNEGO和Kerberos身份验证方案。
  • 用于自定义身份验证方案的插件机制。
  • 自动Cookie处理,用于从服务器读取Set-Cookie:标头,并在适当时在Cookie:标头中发回。
  • 自定义Cookie策略的插件机制。
  • 支持HTTP / 1.1响应缓存。
  • 支持流水线的请求执行和处理。

前言

​ 超文本传输协议(HTTP)可能是当今Internet上使用的最重要的协议。 Web服务,支持网络的设备和网络计算的增长继续将HTTP协议的作用扩展到用户驱动的Web浏览器之外,同时增加了需要HTTP支持的应用程序的数量。
​ 尽管java.net软件包提供了用于通过HTTP访问资源的基本功能,但它并未提供许多应用程序所需的全部灵活性或功能。 HttpClient试图填补这一点通过提供高效,最新且功能丰富的软件包来实现最新的HTTP标准和建议的客户端,从而使此方法无效
​ HttpClient是为扩展而设计的,同时提供对基本HTTP协议的强大支持,对于构建HTTP感知的客户端应用程序(例如Web浏览器,Web服务)的任何人来说,HttpClient可能都会感兴趣客户端或利用或扩展HTTP协议进行分布式通信的系统。

  1. HttpClient作用域

  • 基于HttpCore的客户端HTTP传输库

  • 基于经典(阻塞)I / O

  • 内容不可知

  1. HttpClient不是什么

HttpClient不是浏览器。 它是客户端HTTP传输库。 HttpClient的目的是传输和接收HTTP消息,HttpClient将不会尝试处理内容,执行HTML页面中嵌入的javascript,尝试猜测内容类型(如果未显式设置),重新格式化请求/重写位置URI或其他与HTTP传输无关的功能。
最新Pom引入

   <dependency>
            <groupId>org.apache.httpcomponents</groupId>
            <artifactId>httpasyncclient</artifactId>
            <version>4.1.4</version>
        </dependency>

        <dependency>
            <groupId>org.apache.httpcomponents</groupId>
            <artifactId>httpclient</artifactId>
            <version>4.5.10</version>
        </dependency>
        <dependency>
            <groupId>org.apache.httpcomponents</groupId>
            <artifactId>httpmime</artifactId>
            <version>4.5.10</version>
        </dependency>

在这里插入图片描述
在这里插入图片描述
HttpClient连接池简单封装
支持https 无须认证请求

import com.alibaba.fastjson.JSONObject;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.HttpStatus;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.ResponseHandler;
import org.apache.http.client.config.RequestConfig;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.client.utils.URIBuilder;
import org.apache.http.config.Registry;
import org.apache.http.config.RegistryBuilder;
import org.apache.http.config.SocketConfig;
import org.apache.http.conn.DnsResolver;
import org.apache.http.conn.HttpConnectionFactory;
import org.apache.http.conn.ManagedHttpClientConnection;
import org.apache.http.conn.routing.HttpRoute;
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.entity.ByteArrayEntity;
import org.apache.http.entity.ContentType;
import org.apache.http.impl.DefaultConnectionReuseStrategy;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.DefaultConnectionKeepAliveStrategy;
import org.apache.http.impl.client.DefaultHttpRequestRetryHandler;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.impl.conn.DefaultHttpResponseParserFactory;
import org.apache.http.impl.conn.ManagedHttpClientConnectionFactory;
import org.apache.http.impl.conn.PoolingHttpClientConnectionManager;
import org.apache.http.impl.conn.SystemDefaultDnsResolver;
import org.apache.http.impl.io.DefaultHttpRequestWriterFactory;
import org.apache.http.ssl.SSLContextBuilder;
import org.apache.http.util.EntityUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import javax.net.ssl.SSLContext;
import java.io.IOException;
import java.io.Serializable;
import java.net.URI;
import java.nio.charset.StandardCharsets;
import java.security.cert.CertificateException;
import java.security.cert.X509Certificate;
import java.util.concurrent.TimeUnit;


/**
 * @author Created by niugang on 2020/3/25/15:13
 * HttpClient实现应该是线程安全的。 建议将此类的相同实例重用于多个请求执行。
 */
public class HttpClientV2Utils {

    private static final Logger LOGGER = LoggerFactory.getLogger(HttpClientV2Utils.class);

    public static CloseableHttpClient httpClient = null;


    /**
     * 获取HttpClient工具类
     *
     * @return CloseableHttpClient
     * @throws Exception Exception
     */
    public static synchronized CloseableHttpClient getHttpClient() throws Exception {
        if (httpClient == null) {

            //使用 loadTrustMaterial() 方法实现一个信任策略,信任所有证书
            SSLContext sslContext = new SSLContextBuilder().loadTrustMaterial(null, new TrustStrategy() {
                // 信任所有
                @Override
                public boolean isTrusted(X509Certificate[] chain, String authType) throws CertificateException {
                    return true;
                }
            }).build();
            // 该主机名验证程序实际上关闭了主机名验证。 它接受任何有效的SSL会话并匹配目标主机
            SSLConnectionSocketFactory sslsf = new SSLConnectionSocketFactory(sslContext, NoopHostnameVerifier.INSTANCE);

            //为支持的协议方案创建自定义连接套接字工厂的注册表。
            Registry<ConnectionSocketFactory> socketFactoryRegistry = RegistryBuilder.<ConnectionSocketFactory>create()
                    .register("http", PlainConnectionSocketFactory.INSTANCE)
                    .register("https", sslsf)
                    .build();

            //HTTPConnection工厂 :配置请求/解析响应
            HttpConnectionFactory<HttpRoute, ManagedHttpClientConnection> connFactory = new ManagedHttpClientConnectionFactory(
                    DefaultHttpRequestWriterFactory.INSTANCE, DefaultHttpResponseParserFactory.INSTANCE);
            //DNS解析器
            DnsResolver dnsResolver = SystemDefaultDnsResolver.INSTANCE;

            //创建池化管理器
            PoolingHttpClientConnectionManager manager = new PoolingHttpClientConnectionManager(
                    socketFactoryRegistry, connFactory, dnsResolver);
            // 默认为Socket配置
            SocketConfig socketConfig = SocketConfig.custom()
                    .setTcpNoDelay(true)
                    .build();
            manager.setDefaultSocketConfig(socketConfig);
            // 配置永久连接的最大总数或每个路由限制
            // 可以保留在池中或由连接管理器租用。
            //每个路由的默认最大连接,每个路由实际最大连接为默认为DefaultMaxPreRoute控制,而MaxTotal是控制整个池子最大数
            manager.setMaxTotal(100);
            manager.setDefaultMaxPerRoute(10);
            // 在从连接池获取连接时,连接不活跃多长时间后需要进行一次验证,默认为2s
            manager.setValidateAfterInactivity(5 * 1000);

            //默认请求配置
            //设置连接超时时间 4s
            //设置等待数据超时时间,5s
            //设置从连接池获取连接的等待超时时间
            RequestConfig defaultRequestConfig = RequestConfig.custom()
                    .setConnectTimeout(4 * 1000)
                    .setSocketTimeout(5 * 1000)
                    .setConnectionRequestTimeout(2000)
                    .build();

            httpClient = HttpClients.custom()
                    .setConnectionManager(manager)
                    .setDefaultRequestConfig(defaultRequestConfig)
                    //连接池不是共享模式
                    .setConnectionManagerShared(false)
                    .evictIdleConnections(60, TimeUnit.SECONDS)
                    //定期回收空闲连接
                    .evictExpiredConnections()
                    .setConnectionTimeToLive(60, TimeUnit.SECONDS)
                    //连接重用策略,即是否能keeplive
                    .setConnectionReuseStrategy(DefaultConnectionReuseStrategy.INSTANCE)
                    //长连接配置,即获取长连接生产多长时间
                    .setKeepAliveStrategy(DefaultConnectionKeepAliveStrategy.INSTANCE)
                    //设置重试次数,默认为3次;当前禁用掉(根据需要重启)
                    .setRetryHandler(new DefaultHttpRequestRetryHandler(0, false))
                    .build();
            // jvm 停止或重启时,关闭连接池释放连接资源(跟数据库连接池类似)
            Runtime.getRuntime().addShutdownHook(new Thread() {
                @Override
                public void run() {
                    try {
                        httpClient.close();
                    } catch (IOException e) {
                        LOGGER.error("HttpClient close exception", e);
                    }
                }
            });

        }

        return httpClient;
    }

    /**
     * get方法封装
     * <p>
     * 要使用     EntityUtils.consume(response.getEntity());或者EntityUtils.toString(response.getEntity());
     * 消费响应,不推荐HttpEntity.getContent.close方法来释放连接,处理不好异常将导致连接不释放,也不推荐CloseableHttpClient#close关闭连接,它将直接关闭
     * socket,导致长连接不能复用
     *
     * @param httpGet httpGet
     * @return String
     */
    private static String doGet(HttpGet httpGet) {
        HttpResponse response = null;
        try {
            response = getHttpClient().execute(httpGet);
            if (response.getStatusLine().getStatusCode() != HttpStatus.SC_OK) {
                if (response.getEntity() != null) {
                    EntityUtils.consume(response.getEntity());
                }
                LOGGER.info("GET execute exception [{}]->[{}]", response.getStatusLine(), response.getStatusLine().getReasonPhrase());
                return "error";
            } else {
                return EntityUtils.toString(response.getEntity());
            }
        } catch (Exception e) {
            if (response != null) {
                try {
                    EntityUtils.consume(response.getEntity());
                } catch (IOException e1) {
                    LOGGER.info("GET consume response entity exception", e);
                }
            }
        }

        return "error";
    }

    public static void main(String[] args) throws Exception {
        HttpGet httpsget = new HttpGet("https://11.12.115.104:8443/bs/gateway/get.do");
        httpsget.setHeader("token", "c50e18bc01a62d395a9755b523bc2e50");
        String s = doGet(httpsget);
        LOGGER.info("doGet :{}", s);

        //####1.HTTPS get请求验证 方式二
        URI uri = new URIBuilder()
                .setScheme("https")
                .setHost("11.12.115.104")
                .setPort(8443)
                .setPath("/bs/gateway/get.do")
                .build();

        HttpGet httpsget1 = new HttpGet(uri);
        httpsget1.setHeader("token", "12fd6749989c7aa60ef34c8d53c0cf71");
        // 自定义响应处理器
        ResponseHandler<String> responseHandler = new ResponseHandler<String>() {

            @Override
            public String handleResponse(
                    final HttpResponse response) throws IOException {
                int status = response.getStatusLine().getStatusCode();
                if (status >= 200 && status < 300) {
                    HttpEntity entity = response.getEntity();
                    return entity != null ? EntityUtils.toString(entity, StandardCharsets.UTF_8) : null;
                } else {
                    throw new ClientProtocolException("Unexpected response status: " + status + "->" + response.getStatusLine().getReasonPhrase());
                }
            }

        };
        String execute = getHttpClient().execute(httpsget1, responseHandler);

        LOGGER.info("https get excute result {}", execute);
        //####2.Https Post请求验证  请求体为json数据

        JSONObject jsonObject = new JSONObject();
        jsonObject.put("user", "44444");
        jsonObject.put("ip", "192.168.1.3");
        jsonObject.put("status", "0");
        ByteArrayEntity byteArrayEntity = new ByteArrayEntity(jsonObject.toJSONString().getBytes(), ContentType.create("application/json", "UTF-8"));

        HttpPost httpspost = new HttpPost("https://11.12.115.104:8443/accessControl/saveDevice.do");
        httpspost.setHeader("token", "12fd6749989c7aa60ef34c8d53c0cf71");
        httpspost.setEntity(byteArrayEntity);

        String httpsGostExecute = getHttpClient().execute(httpspost, responseHandler);

        LOGGER.info("https post excute result {}", httpsGostExecute);
        //####3.http get

        HttpGet httpGet = new HttpGet("http://www.baidu.com");
        String httpGetExecute = getHttpClient().execute(httpGet, responseHandler);

        LOGGER.info("http get excute result {}", httpGetExecute);


    }
}

HttpAsyncClient连接池简单封装


package com.example.demo.utils;

import lombok.SneakyThrows;
import org.apache.http.*;

import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.config.CookieSpecs;
import org.apache.http.client.config.RequestConfig;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.concurrent.FutureCallback;
import org.apache.http.config.ConnectionConfig;
import org.apache.http.config.Registry;
import org.apache.http.config.RegistryBuilder;
import org.apache.http.conn.DnsResolver;

import org.apache.http.conn.ssl.NoopHostnameVerifier;
import org.apache.http.conn.ssl.TrustSelfSignedStrategy;

import org.apache.http.conn.ssl.TrustStrategy;
import org.apache.http.impl.conn.SystemDefaultDnsResolver;
import org.apache.http.impl.nio.client.CloseableHttpAsyncClient;
import org.apache.http.impl.nio.client.HttpAsyncClients;
import org.apache.http.impl.nio.codecs.DefaultHttpRequestWriterFactory;

import org.apache.http.impl.nio.codecs.DefaultHttpResponseParserFactory;
import org.apache.http.impl.nio.conn.ManagedNHttpClientConnectionFactory;
import org.apache.http.impl.nio.conn.PoolingNHttpClientConnectionManager;
import org.apache.http.impl.nio.reactor.DefaultConnectingIOReactor;
import org.apache.http.impl.nio.reactor.IOReactorConfig;

import org.apache.http.nio.conn.ManagedNHttpClientConnection;
import org.apache.http.nio.conn.NHttpConnectionFactory;
import org.apache.http.nio.conn.NoopIOSessionStrategy;
import org.apache.http.nio.conn.SchemeIOSessionStrategy;
import org.apache.http.nio.conn.ssl.SSLIOSessionStrategy;
import org.apache.http.nio.reactor.ConnectingIOReactor;
import org.apache.http.nio.reactor.IOReactorException;
import org.apache.http.nio.util.HeapByteBufferAllocator;
import org.apache.http.ssl.SSLContextBuilder;
import org.apache.http.util.EntityUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import javax.net.ssl.SSLContext;
import java.io.IOException;
import java.nio.charset.CodingErrorAction;
import java.nio.charset.StandardCharsets;
import java.security.KeyManagementException;
import java.security.KeyStoreException;
import java.security.NoSuchAlgorithmException;
import java.security.cert.CertificateException;
import java.security.cert.X509Certificate;
import java.util.concurrent.Future;


/**
 * 此示例演示如何自定义和配置HTTP请求执行和连接管理的最常见方面。
 *
 * @author Created by niugang on 2020/3/24/11:25
 */
public class HttpAsyncClientUtils {


    private static final Logger LOGGER = LoggerFactory.getLogger(HttpAsyncClientUtils.class);
    public static CloseableHttpAsyncClient httpclient = null;


    /**
     * 获取 ttpAsyncClient
     *
     * @return CloseableHttpAsyncClient
     * @throws KeyStoreException        KeyStoreException
     * @throws NoSuchAlgorithmException NoSuchAlgorithmException
     * @throws IOReactorException       IOReactorException
     */
    public static synchronized CloseableHttpAsyncClient getHttpAsyncClient() throws KeyStoreException, NoSuchAlgorithmException, KeyManagementException, IOReactorException {
        if (httpclient == null) {


            // HTTPConnection工厂 :配置请求/解析响应
            NHttpConnectionFactory<ManagedNHttpClientConnection> connFactory = new ManagedNHttpClientConnectionFactory(
                    DefaultHttpRequestWriterFactory.INSTANCE, DefaultHttpResponseParserFactory.INSTANCE, HeapByteBufferAllocator.INSTANCE);


            //ssl 连接设置 无须证书也能访问 https
            //使用 loadTrustMaterial() 方法实现一个信任策略,信任所有证书
            SSLContext sslContext = new SSLContextBuilder().loadTrustMaterial(null, new TrustStrategy() {
                // 信任所有
                @Override
                public boolean isTrusted(X509Certificate[] chain, String authType) throws CertificateException {
                    return true;
                }
            }).build();

            // 为支持的协议方案创建自定义连接套接字工厂的注册表。
            Registry<SchemeIOSessionStrategy> sessionStrategyRegistry = RegistryBuilder.<SchemeIOSessionStrategy>create()
                    .register("http", NoopIOSessionStrategy.INSTANCE)
                    .register("https", new SSLIOSessionStrategy(sslContext, NoopHostnameVerifier.INSTANCE))
                    .build();

            //DNS解析器
            DnsResolver dnsResolver = SystemDefaultDnsResolver.INSTANCE;

            // Create I/O reactor configuration
            IOReactorConfig ioReactorConfig = IOReactorConfig.custom()
                    .setIoThreadCount(Runtime.getRuntime().availableProcessors())
                    .setConnectTimeout(30000)
                    .setSoTimeout(30000)
                    .build();

            // 创建一个定制的I/O reactort
            ConnectingIOReactor ioReactor = new DefaultConnectingIOReactor(ioReactorConfig);

            // 使用自定义配置创建连接管理器。
            PoolingNHttpClientConnectionManager connManager = new PoolingNHttpClientConnectionManager(
                    ioReactor, connFactory, sessionStrategyRegistry, dnsResolver);

            //创建连接配置
            ConnectionConfig connectionConfig = ConnectionConfig.custom()
                    .setMalformedInputAction(CodingErrorAction.IGNORE)
                    .setUnmappableInputAction(CodingErrorAction.IGNORE)
                    .setCharset(Consts.UTF_8)
                    .build();
            // 将连接管理器配置为默认使用或针对特定主机使用连接配置。
            connManager.setDefaultConnectionConfig(connectionConfig);

            // 配置永久连接的最大总数或每个路由限制
            // 可以保留在池中或由连接管理器租用。
            //每个路由的默认最大连接,每个路由实际最大连接为默认为DefaultMaxPreRoute控制,而MaxTotal是控制整个池子最大数
            connManager.setMaxTotal(100);
            connManager.setDefaultMaxPerRoute(10);


            // 创建全局请求配置
            RequestConfig defaultRequestConfig = RequestConfig.custom()
                    .setCookieSpec(CookieSpecs.DEFAULT)
                    .setSocketTimeout(5 * 1000)
                    .setConnectTimeout(5 * 1000)
                    .setExpectContinueEnabled(true)
                    .build();

            // Create an HttpClientUtils with the given custom dependencies and configuration.
            httpclient = HttpAsyncClients.custom()
                    .setConnectionManager(connManager)
                    .setDefaultRequestConfig(defaultRequestConfig)
                    .build();

            //jvm 停止或重启时,关闭连接池释放连接资源(跟数据库连接池类似)
            Runtime.getRuntime().addShutdownHook(new Thread() {
                @Override
                public void run() {
                    try {
                        httpclient.close();
                    } catch (IOException e) {
                        LOGGER.error("HttpClient close exception", e);
                    }
                }
            });

        }
        return httpclient;
    }

    public static HttpResponse doGet(String url) {
        CloseableHttpAsyncClient httpAsyncClient = null;

        try {
            final HttpGet httpget = new HttpGet(url);


            LOGGER.info("Executing request {}", httpget.getRequestLine());
            httpAsyncClient = getHttpAsyncClient();

            httpAsyncClient.start();

            // Pass local context as a parameter
            Future<HttpResponse> future = httpAsyncClient.execute(httpget, new FutureCallback<HttpResponse>() {

                @SneakyThrows
                @Override
                public void completed(final HttpResponse response2) {
                    LOGGER.info("{} -> {} completed", httpget.getRequestLine(), response2.getStatusLine());
                }

                @Override
                public void failed(final Exception ex) {
                    LOGGER.error("{}->", httpget.getRequestLine(), ex);
                }

                @Override
                public void cancelled() {
                    LOGGER.error("{} cancelled", httpget.getRequestLine());
                }

            });
            //等待响应结果
            return future.get();
        } catch (Exception e) {
            LOGGER.error("GET execute exception ", e);
        } finally {
            if (httpAsyncClient != null) {
                //直接关闭socket,会导致长连接不能复用,所以返回Future,调用放调用get方法,将一直处于阻塞状态
                try {
                    httpAsyncClient.close();
                } catch (IOException e) {
                    LOGGER.error("GET execute httpAsyncClient close exception ", e);
                }
            }

        }
        return null;
    }

    public static void main(String[] args) throws Exception {
        HttpResponse response = doGet("https://11.12.115.104:8443/serverStatus/serverInfo");
        if (response == null) {
            return;
        }
        LOGGER.info("Response: {}", response.getStatusLine());
        int status = response.getStatusLine().getStatusCode();
        if (status >= 200 && status < 300) {
            HttpEntity entity = response.getEntity();
            String res = entity != null ? EntityUtils.toString(entity, StandardCharsets.UTF_8) : null;
            LOGGER.info("result->{}", res);
        } else {
            throw new ClientProtocolException("Unexpected response status: " + status + "->" + response.getStatusLine().getReasonPhrase());
        }

    }

}

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posted @ 2020-03-25 17:30  盲目的拾荒者  阅读(3260)  评论(0编辑  收藏  举报