我可以更改 Spring 的 ProxyExchange 中使用的 RestTemplate 吗？

Question

我正在使用 Spring 的 ProxyExchange，我想更改默认值 RestTemplate（以便忽略开发环境中的证书）。

有办法吗？

使用 MVC（而不是 flux）

Answer 1

所以基本上我构建了一个RestTemplateCustomizer并添加了一个bean来自定义默认RestTemplate

Answer 2

我们使用 ProxyExchangeArgumentResolver class 改变了 RestTemplate。下面是代码片段

package com.vikrant.practice.config;

import org.apache.http.client.HttpClient;
import org.apache.http.client.config.RequestConfig;
import org.apache.http.impl.client.HttpClientBuilder;
import org.apache.http.impl.conn.PoolingHttpClientConnectionManager;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.boot.web.client.RestTemplateBuilder;
import org.springframework.cloud.gateway.mvc.config.ProxyExchangeArgumentResolver;
import org.springframework.cloud.gateway.mvc.config.ProxyProperties;
import org.springframework.cloud.gateway.mvc.config.ProxyResponseAutoConfiguration;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Import;
import org.springframework.http.client.HttpComponentsClientHttpRequestFactory;
import org.springframework.http.converter.ByteArrayHttpMessageConverter;
import org.springframework.web.client.RestTemplate;

import java.util.Optional;


@Configuration
@EnableAutoConfiguration
@ComponentScan(basePackages = {"com.vikrant.practice"})
public class XyzConfig {

    public RestTemplate restTemplate() {
        RequestConfig requestConfig = RequestConfig.custom()
                .setSocketTimeout(30000).setConnectTimeout(30000).build();

        PoolingHttpClientConnectionManager poolingHttpClientConnectionManager = new PoolingHttpClientConnectionManager();
        poolingHttpClientConnectionManager.setMaxTotal(100);
        poolingHttpClientConnectionManager.setDefaultMaxPerRoute(100);

        HttpClient httpClient = HttpClientBuilder
                .create().setDefaultRequestConfig(requestConfig)
                .setConnectionManager(poolingHttpClientConnectionManager)
                .disableCookieManagement().build();

        HttpComponentsClientHttpRequestFactory factory = new HttpComponentsClientHttpRequestFactory();
        factory.setConnectionRequestTimeout(1000);
        factory.setReadTimeout(30000);
        factory.setConnectTimeout(30000);
        factory.setHttpClient(httpClient);

        RestTemplate restTemplate = new RestTemplate(factory);
        return restTemplate;
    }

    @Bean
    public ProxyExchangeArgumentResolver proxyExchangeArgumentResolver(
            Optional<RestTemplateBuilder> optional, ProxyProperties proxy) {
        RestTemplate template = restTemplate();
        template.getMessageConverters().add(new ByteArrayHttpMessageConverter() {
            @Override
            public boolean supports(Class<?> clazz) {
                return true;
            }
        });
        ProxyExchangeArgumentResolver resolver = new ProxyExchangeArgumentResolver(template);
        resolver.setHeaders(proxy.convertHeaders());
        resolver.setSensitive(proxy.getSensitive());
        return resolver;
    }

}

这是为 SpringBoot 应用程序完成的。如果你想在 web 应用程序中使用它，那么创建一个 class 扩展 SpringBootServletInitializer 并实现 WebApplicationInitializer 并在配置方法下连接这个 class.

我可以更改 Spring 的 ProxyExchange 中使用的 RestTemplate 吗？

Can I alter the RestTemplate used in Spring's ProxyExchange?

spring-mvc

resttemplate