自定义RestTemplate同时支持访问http与https

最新推荐文章于 2025-03-21 14:45:31 发布

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本文介绍如何配置自定义的RestTemplate，使其能够同时处理http和https请求，确保在不同协议间的无缝切换，提升应用的网络访问灵活性。

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package com.leyou;

import org.apache.http.config.Registry;
import org.apache.http.config.RegistryBuilder;
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.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.impl.conn.PoolingHttpClientConnectionManager;
import org.apache.http.ssl.SSLContextBuilder;
import org.springframework.context.annotation.Bean;
import org.springframework.http.client.HttpComponentsClientHttpRequestFactory;
import org.springframework.stereotype.Component;
import org.springframework.web.client.RestTemplate;

import java.security.KeyManagementException;
import java.security.KeyStoreException;
import java.security.NoSuchAlgorithmException;
import java.security.cert.X509Certificate;

@Component
public class rest {
    @Bean
    public RestTemplate ksRestTemplate() throws KeyStoreException, NoSuchAlgorithmException {
        final HttpComponentsClientHttpRequestFactory factory = new HttpComponentsClientHttpRequestFactory();
        //设置过期时间
        factory.setConnectionRequestTimeout(5000);
        factory.setReadTimeout(5000);
        factory.setReadTimeout(5000);
        final SSLContextBuilder builder = new SSLContextBuilder();
        try {
            //全部信任 不做身份鉴定
            builder.loadTrustMaterial(null, (X509Certificate[] x509Certificate, String s) -> true);
        } catch (NoSuchAlgorithmException e) {
            e.printStackTrace();
            throw e;
        } catch (KeyStoreException e) {
            throw e;
        }
        SSLConnectionSocketFactory socketFactory = null;
        try {
            //客户端支持SSLv2Hello，SSLv3,TLSv1，TLSv1
            socketFactory = new SSLConnectionSocketFactory(builder.build(), new String[]{"SSLv2Hello", "SSLv3", "TLSv1", "TLSv1.2"}, null, NoopHostnameVerifier.INSTANCE);
        } catch (NoSuchAlgorithmException e) {
            e.printStackTrace();
        } catch (KeyManagementException e) {
            e.printStackTrace();
        }
        //为自定义连接器注册http与https
        Registry<ConnectionSocketFactory> registry = RegistryBuilder.<ConnectionSocketFactory>create().register("http", new PlainConnectionSocketFactory()).register("https", socketFactory).build();
        PoolingHttpClientConnectionManager phccm = new PoolingHttpClientConnectionManager(registry);
        phccm.setMaxTotal(500);
        final CloseableHttpClient httpClient = HttpClients.custom().setSSLSocketFactory(socketFactory).setConnectionManager(phccm).setConnectionManagerShared(true).build();
        factory.setHttpClient(httpClient);
        final RestTemplate restTemplate = new RestTemplate(factory);
        return restTemplate;
    }


}