spring cloud 第四课使用zuul

使用zuul配置网关，拦截请求，解决跨域问题，过滤请求信息

下面是原有代码加上zuul

服务工程（主要用于注册eureka）

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.netflix.eureka.server.EnableEurekaServer;
import org.springframework.context.annotation.ComponentScan;

/**
 * Created by 79782 on 2018/6/11.
 */
@ComponentScan(basePackages = { "com.yf.controller" })
@SpringBootApplication
@EnableEurekaServer
public class EurekaApplication {
    public static void main(String[] args) {
        //new SpringApplicationBuilder(EurekaApplication.class).web(true).run(args);

        //或者pom引spring-boot-starter-web,然后用下面这个启动
        SpringApplication.run(EurekaApplication.class, args);
    }

}

spring.application.name=eureka-server

server.port=8899

#强制不注册到注册服务器
eureka.client.register-with-eureka=false
eureka.client.fetch-registry=false

#注册中心地址
eureka.client.serviceUrl.defaultZone=http://localhost:${server.port}/eureka/

#驱逐下线的服务，间隔,5秒，默认是60，建议开发和测试环境配置
#org.springframework.cloud.netflix.eureka.server.EurekaServerConfigBean.evictionIntervalTimerInMs
eureka.server.evictionIntervalTimerInMs=5000

<?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">
    <modelVersion>4.0.0</modelVersion>

    <groupId>com.test</groupId>
    <artifactId>erueka</artifactId>
    <version>1.0-SNAPSHOT</version>

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>1.5.2.RELEASE</version>
    </parent>

    <dependencyManagement>
        <dependencies>
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-dependencies</artifactId>
                <version>Camden.SR6</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
        </dependencies>
    </dependencyManagement>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>

        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-eureka-server</artifactId>
        </dependency>
    </dependencies>

</project>

2.服务：

package com.yf.controller;

import org.springframework.beans.factory.annotation.Value;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import java.util.ArrayList;
import java.util.List;

/**
 * Created by 79782 on 2018/6/11.
 */
@RestController
public class FirstServer {
    @Value("${server.port}")
    private String serverPort;

    @RequestMapping("/getMenberAll")
    public List<String> getMenberAll(){
        List<String> listUser = new ArrayList<String>();
        listUser.add("zhangsan");
        listUser.add("lisi");
        listUser.add("wangwu");
        listUser.add("serverPort"+serverPort);
        return listUser;
    }

    @RequestMapping("/getMemberService")
    public String getOederService(){
        return "this is member";
    }

}

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.netflix.eureka.EnableEurekaClient;
import org.springframework.cloud.netflix.eureka.server.EnableEurekaServer;
import org.springframework.context.annotation.ComponentScan;

/**
 * Created by 79782 on 2018/6/11.
 */
@ComponentScan(basePackages = { "com.yf.controller" })
@SpringBootApplication
@EnableEurekaClient
public class EurekaApplication {
    public static void main(String[] args) {
        //new SpringApplicationBuilder(EurekaApplication.class).web(true).run(args);

        //或者pom引spring-boot-starter-web,然后用下面这个启动
        SpringApplication.run(EurekaApplication.class, args);
    }

}

eureka:
  client:
    serviceUrl:
      defaultZone: http://localhost:8899/eureka/
server:
  port: 8763
spring:
  application:
    name: service-member

<?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">
    <modelVersion>4.0.0</modelVersion>

    <groupId>com.yf</groupId>
    <artifactId>eruekaService</artifactId>
    <version>1.0-SNAPSHOT</version>

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>1.5.2.RELEASE</version>
    </parent>

    <dependencyManagement>
        <dependencies>
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-dependencies</artifactId>
                <version>Camden.SR6</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
        </dependencies>
    </dependencyManagement>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>

        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-eureka-server</artifactId>
        </dependency>
    </dependencies>

</project>

3.消费服务

package com.yf.controller;

import com.yf.service.OrderMemberService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.core.annotation.Order;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import java.util.List;

/**
 * Created by 79782 on 2018/6/11.
 */
@RestController
public class OrderMemberController {
    @Autowired
    private OrderMemberService orderMemberService;

    @RequestMapping("/orderGetService")
    public List<String> orderGetService(){
        System.out.println("order use memeber....");
        return orderMemberService.getOrderUserAll();
    }

    @RequestMapping("/getOederService")
    public String getOederService(){
        return "this is order";
    }
}

package com.yf.service;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.web.client.RestTemplate;

import java.util.List;

/**
 * Created by 79782 on 2018/6/11.
 */
@Service
public class OrderMemberService {

    @Autowired
    private RestTemplate restTemplate;

    public List<String> getOrderUserAll(){
        return restTemplate.getForObject("http://service-member/getMenberAll",List.class);
    }
}

package com.yf;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.client.loadbalancer.LoadBalanced;
import org.springframework.cloud.netflix.eureka.EnableEurekaClient;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.web.client.RestTemplate;

/**
 * Created by 79782 on 2018/6/11.
 */
@ComponentScan(basePackages = { "com.yf" })
@SpringBootApplication
@EnableEurekaClient
public class EurekaApplication {
    public static void main(String[] args) {

        SpringApplication.run(EurekaApplication.class, args);
    }

    @Bean
    @LoadBalanced //支持负载均衡
    RestTemplate restTemplate(){
        return new RestTemplate();
    }

}

eureka:
  client:
    serviceUrl:
      defaultZone: http://localhost:8899/eureka/
server:
  port: 8764
spring:
  application:
    name: service-order

<?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">
    <modelVersion>4.0.0</modelVersion>

    <groupId>com.yf</groupId>
    <artifactId>erueka-client</artifactId>
    <version>1.0-SNAPSHOT</version>


    <parent>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>1.5.2.RELEASE</version>
    </parent>

    <dependencyManagement>
    <dependencies>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-dependencies</artifactId>
            <version>Camden.SR6</version>
            <type>pom</type>
            <scope>import</scope>
        </dependency>
    </dependencies>
    </dependencyManagement>

    <dependencies>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter</artifactId>
    </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>

    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-test</artifactId>
        <scope>test</scope>
    </dependency>

    <dependency>
        <groupId>org.springframework.cloud</groupId>
        <artifactId>spring-cloud-starter-eureka-server</artifactId>
    </dependency>

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

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


    </dependencies>

</project>

4.配置zuul

package com.yf.controller;

import com.netflix.zuul.ZuulFilter;
import com.netflix.zuul.context.RequestContext;
import org.springframework.stereotype.Component;

import javax.servlet.http.HttpServletRequest;
import java.io.IOException;

/**
 * Created by 79782 on 2018/6/11.
 */
@Component
public class MyFilter extends ZuulFilter {
    @Override
    public String filterType() {
        return "pre";
    }

    @Override
    public int filterOrder() {
        return 0;
    }

    @Override
    public boolean shouldFilter() {
        return true;
    }

    @Override
    public Object run() {
        RequestContext ctx= RequestContext.getCurrentContext();
        HttpServletRequest request=ctx.getRequest();
        Object accessToken=request.getParameter("token");
        if(accessToken!=null){
            return null;
        }
        ctx.setSendZuulResponse(false);
        ctx.setResponseStatusCode(401);
        try {
            ctx.getResponse().getWriter().write("token is empty");
        } catch (IOException e) {
            e.printStackTrace();
        }
        return null;
    }
}

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.netflix.eureka.EnableEurekaClient;
import org.springframework.cloud.netflix.zuul.EnableZuulProxy;
import org.springframework.context.annotation.ComponentScan;

/**
 * Created by 79782 on 2018/6/11.
 */
@ComponentScan(basePackages = { "com.yf.controller" })
@SpringBootApplication
@EnableEurekaClient
@EnableZuulProxy
public class EurekaApplication {
    public static void main(String[] args) {
        //new SpringApplicationBuilder(EurekaApplication.class).web(true).run(args);

        //或者pom引spring-boot-starter-web,然后用下面这个启动
        SpringApplication.run(EurekaApplication.class, args);
    }

}

eureka:
  client:
    serviceUrl:
      defaultZone: http://localhost:8899/eureka/
server:
  port: 8769
spring:
  application:
    name: server-zuul
zuul:
  routes:
    api-a:
      path: /api-member/**
      service-id: service-member
    api-b:
      path: /api-order/**
      service-id: service-order

<?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">
    <modelVersion>4.0.0</modelVersion>

    <groupId>com.yf</groupId>
    <artifactId>service-zuul</artifactId>
    <version>1.0-SNAPSHOT</version>

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>1.5.2.RELEASE</version>
    </parent>

    <dependencyManagement>
        <dependencies>
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-dependencies</artifactId>
                <version>Camden.SR6</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
        </dependencies>
    </dependencyManagement>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>

        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-eureka-server</artifactId>
        </dependency>

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

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

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


    </dependencies>

</project>

spring cloud 第四课 使用zuul

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spring cloud 第四课使用zuul