如何为Spring Boot中的所有控制器指定前缀？

我有控制器映射到/user and /order:

@RestController
@RequestMapping("/users")
public class UserController {
    ...
}

@RestController
@RequestMapping("/orders")
public class OrderController {
    ...
}

我想通过 URL 访问这些内容http://localhost:8080/api/users and http://localhost:8080/api/orders， 分别。

我如何在 Spring Boot 中实现这一目标？

您可以提供到 Spring Boot 应用程序的根上下文路径的映射/api/*在您的自定义配置中。

import org.springframework.boot.autoconfigure.web.DispatcherServletAutoConfiguration;
import org.springframework.boot.context.embedded.ServletRegistrationBean;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.DispatcherServlet;

@Configuration
public class DispatcherServletCustomConfiguration {

    @Bean
    public DispatcherServlet dispatcherServlet() {
        return new DispatcherServlet();
    }

    @Bean
    public ServletRegistrationBean dispatcherServletRegistration() {
        ServletRegistrationBean registration = new ServletRegistrationBean(
                dispatcherServlet(), "/api/");
        registration.setName(DispatcherServletAutoConfiguration.DEFAULT_DISPATCHER_SERVLET_REGISTRATION_BEAN_NAME);
        return registration;
    }
}

或将其添加到您的application.properties in src\main\resources folder

server.contextPath=/api

EDIT

从 Spring Boot 2.x 开始，该属性已被弃用 https://github.com/spring-projects/spring-boot/wiki/Spring-Boot-2.0-Migration-Guide#servlet-specific-server-properties并且应该替换为

server.servlet.contextPath=/api

您可以在这里找到更多内容Spring Boot 上下文根 https://stackoverflow.com/questions/20405474/spring-boot-context-root和这里将 servlet 映射添加到 DispatcherServlet http://www.leveluplunch.com/java/tutorials/011-add-servlet-mapping-to-dispatcherservlet-spring-boot/