HttpClient工具类-基于4.3.x版本

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于 2024-03-13 09:48:15 发布 · 789 阅读

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文章标签：

#http

本文介绍了如何在SpringBoot项目中使用ApacheHttpClient组件，配置连接池大小、路由连接数、重试策略以及处理各种网络异常，如SSL握手异常和连接超时。

主要涉及连接池,请求重试相关配置

package com.epoch.webservices.util;

import com.google.common.collect.Maps;
import lombok.extern.slf4j.Slf4j;
import org.apache.http.*;
import org.apache.http.client.HttpRequestRetryHandler;
import org.apache.http.client.config.RequestConfig;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.client.protocol.HttpClientContext;
import org.apache.http.conn.HttpClientConnectionManager;
import org.apache.http.conn.routing.HttpRoute;
import org.apache.http.entity.ContentType;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.DefaultConnectionKeepAliveStrategy;
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.beans.factory.annotation.Value;
import org.springframework.stereotype.Component;

import javax.net.ssl.SSLException;
import javax.net.ssl.SSLHandshakeException;
import java.io.IOException;
import java.io.InterruptedIOException;
import java.net.UnknownHostException;
import java.nio.charset.StandardCharsets;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.concurrent.TimeUnit;

@Slf4j
@Component
public class HttpClientUtil {

    private static final int retryInterval = 3000;

    @Value("${fssc.webservices.interface.voucher-after-push-connection-timeout:10000}")
    public Integer DEFAULT_CONNECTION_TIME_OUT;

    @Value("${fssc.webservices.interface.voucher-after-push-read-timeout:60000}")
    public Integer

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