springcloud集成网关加config

　　　　　　　　　　　　　　springcloud集成网关加config

1.集成网关创建新模块

 

 2.导入依赖

 <dependency>
        <groupId>org.springframework.cloud</groupId>
        <artifactId>spring-cloud-starter-netflix-zuul</artifactId>
    </dependency>

    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-web</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework.cloud</groupId>
        <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
    </dependency>
    <dependency>
        <groupId>com.alibaba</groupId>
        <artifactId>fastjson</artifactId>
        <version>1.2.55</version>
    </dependency>

3.配置yml

eureka:
  client:
    serviceUrl:
      defaultZone: http://peer1:1003/eureka/,http://peer2:1002/eureka/ #注册中心地址 #注册中心地址
server:
  port: 5000


zuul:
  ignored-services: "*"    #禁止使用服务名字进行访问
  routes:
    order-server: "/order/**"
    student-server: "/student/**"
    user-service: "/user/**"
  prefix: "/servers"

4.主配置类打开网关注解

@SpringBootApplication
@EnableCircuitBreaker//开启熔断器
/**
 * @EnableZuulServer开启网关
 */
@EnableZuulProxy
public class ZuullApplication5000 {

    public static void main(String[] args) {
        SpringApplication.run(ZuullApplication5000.class);
    }
}

5.实现ZuulFilter定义过滤器

@Component
public class LoginCheckFilter  extends ZuulFilter {

    public static final String PRE_TYPE = "pre";
    //定义优先级数字 越大优先级越高
    public static final int FILTER_ORDER = 1;

    /**
     *
     * Filtered prefix
     *
     */
    @Override
    public String filterType() {
        return PRE_TYPE;
    }

    /**
     * The bigger the number, the higher the priority
     *
     */
    @Override
    public int filterOrder() {
        return FILTER_ORDER;
    }

    /**
     * Execute the run method according to the return value type
     * @return
     */
    @Override
    public boolean shouldFilter() {
        /**
         *Get access path
         * Determine the request path
         */
        HttpServletRequest request = RequestContext.getCurrentContext().getRequest();

        if (request.getRequestURI().contains("login")){
            return false;
        }

        return true;
    }

    @Override
    public Object run() throws ZuulException {

        HttpServletRequest request = RequestContext.getCurrentContext().getRequest();
        String token = request.getHeader("access-token");
        /**
         * Determines whether the string is empty
         */
        if (!StringUtils.hasLength(token)){
            /**
             *Get the response object
             */
            HttpServletResponse response = RequestContext.getCurrentContext().getResponse();
            /**
             *Response object content Settings
             */
            response.setContentType("test/json,charset=utf-8");
            /**
             * Set the response status encoding
             */
            response.setStatus(HttpStatus.SC_UNAUTHORIZED);
            /**
             *Set error message
             */
            Map<String,Object> map = new HashMap<>();
            map.put("success", false);
            map.put("message", "请先登录在进行访问");
            /**
             * The conversion data type is json
             */
            String json = JSON.toJSONString(map);
            try {
                response.getWriter().write(json);
            } catch (IOException e) {
                e.printStackTrace();
            }
            /**
             * Stop the release
             */
            RequestContext.getCurrentContext().setSendZuulResponse(false);
        }
        return null;
    }

集成配置中心：配置中心原理图

　　1.码云创建自己的账号添加配置文件

 

　　2.创建config模块

 

 　　3.导入依赖

<dependencies>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-config-server</artifactId>
        </dependency>

　　4.yml配置

eureka:
  client:
    serviceUrl:
      defaultZone: http://peer1:1003/eureka/,http://peer2:1002/eureka/ #注册中心地址
  instance:
    prefer-ip-address: true #使用ip地址注册
    instance-id: config-server  #指定服务的id
server:
  port: 6002
spring:
  application:
    name: config-server
  cloud:
    config:
      server:
        git:
          uri: https://gitee.com/wang_yi_mo/springcloud-config.git
          username: 13699638505
          password: 0427java

　　5.配置类开启配置中心

@SpringBootApplication
@EnableDiscoveryClient
@EnableConfigServer
public class EurekaServerApplication6002 {

    public static void main(String[] args) {
        SpringApplication.run(EurekaServerApplication6002.class);
    }
}

　　6.启动模块

　　7.测试：http://localhost:6002/application-student-test.yml

　　8.修改student-server微服务

　　9.删除student-server层的yml配置bootstrap.yml

spring:
  cloud:
    config:
      uri: http://localhost:6002
      name: application-student   #后面会找到那个配置文件自动加入你的环境#-test.yml
      profile: test  #测试环境
      label: master

　　10.开启服务浏览器直接访问