带有两种MVC配置的Spring Boot

Question

我有一个带有REST API的Spring Boot应用程序，使用Jackson进行JSON视图配置。它的工作很好，我可以得到所有的春靴好。

Answer 1

如果您可以为每个上下文使用不同的端口，那么您只需覆盖DispatcherServleTautoConfigurationbean。所有其他的magic工作，multpart,Jackson等，您可以分别为每个子上下文配置Servlet和Jackson/multpart等，并注入父上下文的bean。

package test;

import static org.springframework.boot.autoconfigure.web.DispatcherServletAutoConfiguration.DEFAULT_DISPATCHER_SERVLET_BEAN_NAME;
import static org.springframework.boot.autoconfigure.web.DispatcherServletAutoConfiguration.DEFAULT_DISPATCHER_SERVLET_REGISTRATION_BEAN_NAME;

import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.boot.builder.SpringApplicationBuilder;
import org.springframework.boot.context.embedded.ServletRegistrationBean;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.PropertySource;
import org.springframework.http.converter.json.Jackson2ObjectMapperBuilder;
import org.springframework.web.servlet.DispatcherServlet;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter;

@Configuration
@EnableAutoConfiguration(exclude = {
        Application.Context1.class,
        Application.Context2.class
})
public class Application extends WebMvcConfigurerAdapter {

    @Bean
    public TestBean testBean() {
        return new TestBean();
    }

    public static void main(String[] args) {
        final SpringApplicationBuilder builder = new SpringApplicationBuilder().parent(Application.class);
        builder.child(Context1.class).run();
        builder.child(Context2.class).run();
    }

    public static class TestBean {
    }

    @Configuration
    @EnableAutoConfiguration(exclude = {Application.class, Context2.class})
    @PropertySource("classpath:context1.properties")
    public static class Context1 {

        @Bean(name = DEFAULT_DISPATCHER_SERVLET_BEAN_NAME)
        DispatcherServlet dispatcherServlet() {
            DispatcherServlet dispatcherServlet = new DispatcherServlet();
            // custom config here
            return dispatcherServlet;
        }

        @Bean(name = DEFAULT_DISPATCHER_SERVLET_REGISTRATION_BEAN_NAME)
        ServletRegistrationBean dispatcherServletRegistration() {
            ServletRegistrationBean registration = new ServletRegistrationBean(dispatcherServlet(), "/test1");
            registration.setName(DEFAULT_DISPATCHER_SERVLET_BEAN_NAME);
            // custom config here
            return registration;
        }

        @Bean
        Jackson2ObjectMapperBuilder jackson2ObjectMapperBuilder(TestBean testBean) {
            System.out.println(testBean);
            Jackson2ObjectMapperBuilder builder = new Jackson2ObjectMapperBuilder();
            // custom config here
            return builder;
        }
    }

    @Configuration
    @EnableAutoConfiguration(exclude = {Application.class, Context1.class})
    @PropertySource("classpath:context2.properties")
    public static class Context2 {

        @Bean(name = DEFAULT_DISPATCHER_SERVLET_BEAN_NAME)
        DispatcherServlet dispatcherServlet() {
            DispatcherServlet dispatcherServlet = new DispatcherServlet();
            // custom config here
            return dispatcherServlet;
        }

        @Bean(name = DEFAULT_DISPATCHER_SERVLET_REGISTRATION_BEAN_NAME)
        ServletRegistrationBean dispatcherServletRegistration() {
            ServletRegistrationBean registration = new ServletRegistrationBean(dispatcherServlet(), "/test2");
            registration.setName(DEFAULT_DISPATCHER_SERVLET_BEAN_NAME);
            // custom config here
            return registration;
        }

        @Bean
        Jackson2ObjectMapperBuilder jackson2ObjectMapperBuilder(TestBean testBean) {
            System.out.println(testBean);
            Jackson2ObjectMapperBuilder builder = new Jackson2ObjectMapperBuilder();
            // custom config here
            return builder;
        }
    }
}

context1/2.properties文件当前仅包含一个server.port=8080/8081，但您可以在其中为子上下文设置所有其他spring属性。