课程的edgeService依赖于课程服务的dubbo服务,对外提供的restAPI,跟用户的EdgeService有点类似,只是一个调用的是thrift,一个调用的是dubbo,比较特殊的是课程的EdgeService需要用户登录后才可以访问,如果没有登录的话,需要跳转到登录系统才可以访问。源码:https://github.com/limingios/msA-docker
* pom增加依賴
<?xml version="1.0" encoding="UTF-8"?> <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> <parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>1.5.3.RELEASE</version> </parent> <modelVersion>4.0.0</modelVersion> <groupId>com.idig8</groupId> <artifactId>course-edge-service</artifactId> <version>1.0-SNAPSHOT</version> <dependencies> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> <dependency> <groupId>commons-lang</groupId> <artifactId>commons-lang</artifactId> <version>2.6</version> </dependency> <dependency> <groupId>io.dubbo.springboot</groupId> <artifactId>spring-boot-starter-dubbo</artifactId> <version>1.0.0</version> </dependency> <dependency> <groupId>com.idig8</groupId> <artifactId>course-dubbo-service-api</artifactId> <version>1.0-SNAPSHOT</version> </dependency> <dependency> <groupId>com.idig8</groupId> <artifactId>user-edge-service-client</artifactId> <version>1.0-SNAPSHOT</version> </dependency> </dependencies> </project>
package com.idig8.course.controller; import com.alibaba.dubbo.config.annotation.Reference; import com.idig8.course.dto.CourseDTO; import com.idig8.course.service.ICourseService; import com.idig8.thrift.user.dto.UserDTO; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RequestMethod; import org.springframework.web.bind.annotation.ResponseBody; import javax.servlet.http.HttpServletRequest; import java.util.List; /** * Created by Michael on 2017/11/4. */ @Controller @RequestMapping("/course") public class CourseController { @Reference private ICourseService courseService; @RequestMapping(value = "/courseList", method = RequestMethod.GET) @ResponseBody public List<CourseDTO> courseList(HttpServletRequest request) { UserDTO user = (UserDTO)request.getAttribute("user"); System.out.println(user.toString()); return courseService.courseList(); } }
package com.idig8.course.filter; import com.idig8.thrift.user.dto.UserDTO; import com.idig8.user.client.LoginFilter; import org.springframework.beans.factory.annotation.Value; import org.springframework.stereotype.Component; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; /** * Created by liming. */ @Component public class CourseFilter extends LoginFilter { @Value("${user.edge.service.addr}") private String userEdgeServiceAddr; @Override protected String userEdgeServiceAddr() { return userEdgeServiceAddr; } @Override protected void login(HttpServletRequest request, HttpServletResponse response, UserDTO userDTO) { request.setAttribute("user", userDTO); } }
package com.idig8.course; import com.idig8.course.filter.CourseFilter; import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication; import org.springframework.boot.web.servlet.FilterRegistrationBean; import org.springframework.context.annotation.Bean; import java.util.ArrayList; import java.util.List; /** * Created by liming */ @SpringBootApplication public class ServiceApplication { public static void main(String args[]) { SpringApplication.run(ServiceApplication.class, args); } @Bean public FilterRegistrationBean filterRegistrationBean(CourseFilter courseFilter ) { FilterRegistrationBean filterRegistrationBean = new FilterRegistrationBean(); filterRegistrationBean.setFilter(courseFilter); List<String> urlPatterns = new ArrayList<String>(); urlPatterns.add("/*"); filterRegistrationBean.setUrlPatterns(urlPatterns); return filterRegistrationBean; } }
server.port=8081 #dubbo config spring.dubbo.application.name=course-service spring.dubbo.registry.address=zookeeper://47.98.183.16:2181 spring.dubbo.scan=com.idig8.course user.edge.service.addr=127.0.0.1:8082
PS:微服务跟之前说的一样就是互相通过RPC的方式进行通信,之间有自己的数据库,只是RPC暴露接口的方式来获取其他的微服务之间的数据。
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