代碼架構(gòu)

package com.http.controller;

import com.http.RestTemplateConfig;
import org.springframework.http.HttpMethod;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.client.RestTemplate;

@RestController
@RequestMapping
public class httpControler {
    @RequestMapping(value = "two")
    public String two() {
        RestTemplate restTemplate = new RestTemplateConfig().restTemplate();
        String url = "https://www.baidu.com";
        ResponseEntity<String> res = restTemplate .getForEntity(url, String.class);
        return restTemplate.exchange(url, HttpMethod.GET, null, String.class).getBody();
    }
}

package com.http;

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.client.RestTemplate;

@Configuration
public class RestTemplateConfig {
    @Bean
    public RestTemplate restTemplate() {
        HttpsClientRequestFactory factory = new HttpsClientRequestFactory();
        //單位為ms (部分接口數(shù)據(jù)量大,讀取改為60秒)
        factory.setReadTimeout(60000);
        //單位為ms
        factory.setConnectTimeout(10000);
        return new RestTemplate(factory);
    }
}

package com.http;

import org.apache.http.conn.ssl.TrustStrategy;
import org.apache.http.ssl.SSLContexts;
import org.springframework.http.client.SimpleClientHttpRequestFactory;

import javax.net.ssl.HttpsURLConnection;
import javax.net.ssl.SSLContext;
import java.net.HttpURLConnection;
import java.security.KeyStore;

/**
 * 繼承SimpleClientHttpRequestFactory 根據(jù)連接支持實(shí)現(xiàn)http和https請求發(fā)送
 */
public class HttpsClientRequestFactory extends SimpleClientHttpRequestFactory {
    @Override
    protected void prepareConnection(HttpURLConnection connection, String httpMethod) {
        try {
            if (!(connection instanceof HttpsURLConnection)) {
                //http協(xié)議
                super.prepareConnection(connection, httpMethod);
            }
            if ((connection instanceof HttpsURLConnection)) {
                HttpsURLConnection httpsURLConnection = (HttpsURLConnection) connection;
                //https協(xié)議
                KeyStore trustStore = KeyStore.getInstance(KeyStore.getDefaultType());
                //信任任何鏈接(也就是忽略認(rèn)證)
                TrustStrategy anyTrustStrategy = (chain, authType) -> true;
                SSLContext ctx = SSLContexts.custom().loadTrustMaterial(trustStore, anyTrustStrategy).build();
                httpsURLConnection.setSSLSocketFactory(ctx.getSocketFactory());
                super.prepareConnection(httpsURLConnection, httpMethod);
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

效果
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