spring.mvc.async.request-timeout=20000

public class WebMvcConfig extends WebMvcConfigurerAdapter {
    @Override
    public void configureAsyncSupport(final AsyncSupportConfigurer configurer) {
        configurer.setDefaultTimeout(20000);
        configurer.registerCallableInterceptors(timeoutInterceptor());
    }
    @Bean
    public TimeoutCallableProcessingInterceptor timeoutInterceptor() {
        return new TimeoutCallableProcessingInterceptor();
    }
}

import lombok.extern.slf4j.Slf4j;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.http.client.HttpComponentsClientHttpRequestFactory;
import org.springframework.web.client.RestTemplate;
 
@Slf4j
@Configuration
public class RestTemplateConfig {
 
    @Bean
    @ConfigurationProperties(prefix = "rest.connection")
    public HttpComponentsClientHttpRequestFactory httpRequestFactory() {
        return new HttpComponentsClientHttpRequestFactory();
    }
 
    @Bean
    public RestTemplate customRestTemplate(){
        return new RestTemplate(httpRequestFactory());
    }
}

@Beanpublic SimpleClientHttpRequestFactory httpRequestFactory() {         
　　SimpleClientHttpRequestFactory requestFactory = new SimpleClientHttpRequestFactory();  
　　requestFactory.setConnectTimeout(1000);  
　　requestFactory.setReadTimeout(1000);               
　　return requestFactory;
}
     
@Beanpublic RestTemplate customRestTemplate(){
　　return new RestTemplate(httpRequestFactory());
}

#restTemplate配置# 連接不共用的時(shí)候，等待連接超時(shí)。
rest.connection.connectionRequestTimeout=30000#  建立連接超時(shí)
rest.connection.connectTimeout=30000# 建立連接成功后 從服務(wù)器讀取超時(shí)
rest.connection.readTimeout=30000

#restTemplate配置
rest.connection.connection-request-timeout=30000
rest.connection.connect-timeout=30000
rest.connection.read-timeout=30000