Springboot如何实现代理服务器

<dependency>
    <groupId>org.mitre.dsmiley.httpproxy</groupId>
    <artifactId>smiley-http-proxy-servlet</artifactId>
    <version>1.6</version>
</dependency>
<dependency>
    <groupId>com.google.guava</groupId>
    <artifactId>guava</artifactId>
    <version>18.0</version>
</dependency>

    @Bean
    public Servlet baiduProxyServlet(){
        return new ProxyServlet();
    }
    @Bean
    public ServletRegistrationBean proxyServletRegistration(){
        ServletRegistrationBean registrationBean = new ServletRegistrationBean(baiduProxyServlet(), "/*");
        Map<String, String> params = ImmutableMap.of(
                "targetUri", "http://www.baidu.com",//目标服务器
                "log", "true");
        registrationBean.setInitParameters(params);
        return registrationBean;
    }

@Configuration
public class WebMVCConfig implements WebMvcConfigurer {
    @Override
    public void addCorsMappings(CorsRegistry registry) {
        registry.addMapping("/**")
                .allowedOrigins("*")
                .allowedMethods("GET", "HEAD", "POST", "PUT", "DELETE", "OPTIONS")
                .allowCredentials(true)
                .maxAge(3600)
                .allowedHeaders("*");
    }
}

my:
  proxy:
    http:
      addr: 3.3.3.3
      port: 1111
    https:
      addr: 3.3.3.3
      port: 1112
  exclude:
    paths:
      - 1.1.1.1
      - 2.2.2.2

import lombok.Data;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.context.annotation.Configuration;
import java.util.List;
@Data
@Configuration
@ConfigurationProperties(prefix = "my.proxy.exclude")
public class ProxyConfig {
   List<String> paths;
}

import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.boot.CommandLineRunner;
import org.springframework.boot.context.properties.EnableConfigurationProperties;
import org.springframework.stereotype.Component;
import pers.zzq.manage.config.ProxyConfig;
import java.util.List;
@Component
@Slf4j
@EnableConfigurationProperties(ProxyConfig.class)
public class ProxyInteceptorRunner implements CommandLineRunner {
   @Autowired
   ProxyConfig proxyConfig;
   @Value("${my.proxy.http.addr}")
   String httpAddr;
   @Value("${my.proxy.http.port}")
   String httpPort;
   @Value("${my.proxy.https.addr}")
   String httpsAddr;
   @Value("${my.proxy.https.port}")
   String httpsPort;
   @Override
   public void run(String... args) {
      System.setProperty("https.proxyHost", httpsAddr);
      System.setProperty("https.proxyPort", httpsPort);
      System.setProperty("http.proxyHost", httpAddr);
      System.setProperty("http.proxyPort", httpPort);
      StringBuilder sb = new StringBuilder();
      List<String> paths = proxyConfig.getPaths();
      for (String path : paths) {
         sb.append(path).append("|");
      }
      String s = sb.toString() + "localhost";
      System.setProperty("http.nonProxyHosts", s);
      System.setProperty("http.nonProxyHosts", s);
   }
}