zuul（路由网关）与 Hystrix Dasboard 监控平台搭建

基于 eureka 服务于发现（集群模式）添加内容

1..... zuul 路由网关

　　zuul 核心就是过滤器通过过滤器实现请求过滤身份校验等

　　过滤：对请求的处理过程进行干预

　　请求路由：将外部请求转发到具体微服务实例上

2.....Zuul 过滤展示 -----------自定义过滤器 ----

　　继承ZuulFilter ZuulFilter是一个抽象类需要覆盖它的四个方法

1.... pom.xml

 1 <?xml version="1.0" encoding="UTF-8"?>
 2 <project xmlns="http://maven.apache.org/POM/4.0.0"
 3          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 4          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
 5     <parent>
 6         <artifactId>spring-cloud-parent</artifactId>
 7         <groupId>com.wsc</groupId>
 8         <version>1.0-SNAPSHOT</version>
 9         <relativePath>../springCloud/spring-cloud-parent/pom.xml</relativePath>
10     </parent>
11     <modelVersion>4.0.0</modelVersion>
12 
13     <artifactId>springCloud-zuul</artifactId>
14 
15 
16     <properties>
17         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
18         <maven.compiler.source>1.8</maven.compiler.source>
19         <maven.compiler.target>1.8</maven.compiler.target>
20     </properties>
21     <dependencies>
22         <!--服务提供者注册进服务中心-->
23         <dependency>
24             <groupId>org.springframework.cloud</groupId>
25             <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
26         </dependency>
27         <!--服务提供者注册进服务中心-->
28         <dependency>
29             <groupId>org.springframework.boot</groupId>
30             <artifactId>spring-boot-starter-web</artifactId>
31         </dependency>
32         <!--路由网关-->
33         <dependency>
34             <groupId>org.springframework.cloud</groupId>
35             <artifactId>spring-cloud-starter-netflix-zuul</artifactId>
36         </dependency>
37     </dependencies>
38 </project>

pom.xml

2..... loginFilter 类实现过滤

 1 package com.wsc.core.login;
 2 
 3 import com.netflix.zuul.ZuulFilter;
 4 import com.netflix.zuul.context.RequestContext;
 5 import com.netflix.zuul.exception.ZuulException;
 6 import org.slf4j.Logger;
 7 import org.slf4j.LoggerFactory;
 8 import org.springframework.stereotype.Component;
 9 
10 import javax.servlet.http.HttpServletRequest;
11 import java.io.IOException;
12 
13 /**
14  * @version 1.0
15  * @ClassName LoginFilter
16  * @Description TODO
17  * @Author WSC
18  * @Date 2019/9/2 10:16
19  * 
20  * filterType:  返回字符串代表过滤器的类型    返回值有以下四个
21  *
22  *             pre        在请求路由之前执行
23  *
24  *             route:     在请求路由的时候调用
25  *
26  *             post :     请求路由之后进行调用  
27  *
28  *             eroor :    处理请求发生错误时调用
29  *
30  *        filterOrder :   返回整数值
31  *
32  *        shouldOrder :  返回boolean 值  判断过滤器是否执行  true 要执行此过滤器 
33  *
34  *          run   :      过滤器的业务逻辑
35  *
36  **/
37 @Component
38 public class LoginFilter extends ZuulFilter {
39 
40     Logger logger = LoggerFactory.getLogger(getClass());
41     @Override
42     public String filterType() {
43         return "pre"; //请求路由前调用
44     }
45 
46     @Override
47     public int filterOrder() {
48         return 1; // int 值来定义  过滤器的执行的顺序  数据越小优先级越高
49     }
50 
51     @Override
52     public boolean shouldFilter() {
53         return true;  //  该过滤器是否执行  true代表执行
54     }
55 
56     @Override
57     public Object run() throws ZuulException {
58         RequestContext currentContext = RequestContext.getCurrentContext();
59         HttpServletRequest request = currentContext.getRequest();
60         // 请求参数token的值
61         String token = request.getParameter("token");
62         if(token==null){
63             logger.warn("此操作需要先登录系统.............");
64             currentContext.setSendZuulResponse(false);// 拒绝访问
65             currentContext.setResponseStatusCode(200); //  设置响应状态码
66           try {
67               currentContext.getResponse().getWriter().write("token is empty");
68           }catch(IOException e){
69             e.printStackTrace();
70             }
71             return null;
72         }
73         logger.info("ok");
74         return null;
75     }
76 }

loginFilter

3....启动类

 1 package com.wsc.core;
 2 
 3 import org.springframework.boot.SpringApplication;
 4 import org.springframework.boot.autoconfigure.SpringBootApplication;
 5 import org.springframework.cloud.netflix.zuul.EnableZuulProxy;
 6 
 7 /**
 8  * @version 1.0
 9  * @ClassName Start_zuul_7001
10  * @Description TODO
11  * @Author WSC
12  * @Date 2019/8/30 17:14
13  **/
14 @EnableZuulProxy   // 开启zuul功能
15 @SpringBootApplication
16 public class Start_zuul_7001 {
17     public static void main(String[] args) {
18         SpringApplication.run(Start_zuul_7001.class,args);
19     }
20 }

启动类

4.....application.yml配置

 1 server:
 2   port: 7001
 3 spring:
 4   application:
 5     name: microserver-zuul-geteway
 6 eureka:
 7   client:
 8     register-with-eureka: true             #服务注册开关
 9     fetch-registry: true                  #服务发现开关
10     service-url:
11       defaultZone: http://eureka6001.com:6001/eureka/, http://eureka6002.com:6002/eureka/
12   instance:
13     instanceId: ${spring.application.name}:${server.port}   #  2   指定实例ID 不显示主机名
14     preferipAddress: true  # 访问路径可以显示ip 地址
15 
16 zuul:
17   routes:
18     povider-product:  # 路由的名称、名称任意  保持所有路由名称唯一
19         path: /product/**   #访问路径
20         service-id: microserver-product  
21         strip-prefix: false    # 代理转发时 去掉前缀

application.yml

过滤效果

通过验证

3...... Fegin 客户端服务熔断

　　　　hystrix-8001 在 eureka 服务于发现（集群模式）上

1......pom.xml

 1 <?xml version="1.0" encoding="UTF-8"?>
 2 <project xmlns="http://maven.apache.org/POM/4.0.0"
 3          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 4          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
 5     <parent>
 6         <artifactId>spring-cloud-parent</artifactId>
 7         <groupId>com.wsc</groupId>
 8         <version>1.0-SNAPSHOT</version>
 9         <relativePath>../springCloud/spring-cloud-parent/pom.xml</relativePath>
10     </parent>
11     <modelVersion>4.0.0</modelVersion>
12 
13     <artifactId>comsumer-consumer</artifactId>
14 
15 
16     <properties>
17         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
18         <maven.compiler.source>1.8</maven.compiler.source>
19         <maven.compiler.target>1.8</maven.compiler.target>
20     </properties>
21     <dependencies>
22         <dependency>
23             <groupId>com.wsc</groupId>
24             <artifactId>common</artifactId>
25             <version>1.0-SNAPSHOT</version>
26         </dependency>
27         <!--springboot web启动器-->
28         <dependency>
29             <groupId>org.springframework.boot</groupId>
30             <artifactId>spring-boot-starter-web</artifactId>
31         </dependency>
32         <!--Ribbon 相关的依赖-->
33         <!--spring-cloud-starter-netflix-eureka-client  会自动添加spring-cloud-starter-netflix-ribbon-->
34         <dependency>
35             <groupId>org.springframework.cloud</groupId>
36             <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
37         </dependency>
38         <!--feign的依赖-->
39         <dependency>
40             <groupId>org.springframework.cloud</groupId>
41             <artifactId>spring-cloud-starter-openfeign</artifactId>
42         </dependency>
43     </dependencies>
44 </project>

pom.xml

2.....application.yml

 1 server:
 2   port: 80
 3 eureka:
 4   client:
 5     register-with-eureka: true             #服务注册开关
 6     fetch-registry: true                  #服务发现开关
 7     service-url:
 8       defaultZone: http://eureka6001.com:6001/eureka/,http://eureka6002.com:6002/eureka/    # http://localhost:6001/eureka # 1 显示主机名
 9 #    decoder-name:
10 #      instance:
11 #        instanceId: ${spring.application.name}:${server.port}   #  2   指定实例ID 不显示主机名
12 #        preferipAddress: true
13 
14 #  在fegin中需要开启Hystrix
15 feign:
16   hystrix:
17     enabled: true

View Code

3.....FeignService

 1 package com.wsc.core.service;
 2 
 3 import com.wsc.core.pojo.Product;
 4 import org.springframework.cloud.openfeign.FeignClient;
 5 import org.springframework.web.bind.annotation.PathVariable;
 6 import org.springframework.web.bind.annotation.RequestMapping;
 7 import org.springframework.web.bind.annotation.RequestMethod;
 8 
 9 import java.util.List;
10 
11 @FeignClient(value = "microserver-product",fallback = ProductClientServiceFallBack.class)
12 public interface FeignService {
13     @RequestMapping(value = "/product/get/{id}",method = RequestMethod.GET)
14     Product get(@PathVariable Long id);
15     @RequestMapping(value = "/product/list",method = RequestMethod.GET)
16     List<Product> list();
17     @RequestMapping(value = "/product/add",method = RequestMethod.POST)
18     boolean add(Product product);
19 }

View Code

4.....ProductClientServiceFallBack

 1 package com.wsc.core.service;
 2 
 3 import com.wsc.core.pojo.Product;
 4 import org.springframework.stereotype.Component;
 5 
 6 import java.util.List;
 7 
 8 /**
 9  * @version 1.0
10  * @ClassName ProductClientServiceFallBack
11  * @Description TODO
12  * @Author WSC
13  * @Date 2019/9/2 14:41
14  **/
15 @Component
16 public class ProductClientServiceFallBack implements FeignService{
17     @Override
18     public Product get(Long id) {
19         return new Product(id,"id="+id+"无数据-fegin&hystrix","无效的数据库");
20     }
21 
22     @Override
23     public List<Product> list() {
24         return null;
25     }
26 
27     @Override
28     public boolean add(Product product) {
29         return false;
30     }
31 }

View Code

5....ConfigBeanController

 1 package com.wsc.core.controller;
 2 
 3 import com.wsc.core.pojo.Product;
 4 import com.wsc.core.service.FeignService;
 5 import org.springframework.beans.factory.annotation.Autowired;
 6 import org.springframework.web.bind.annotation.PathVariable;
 7 import org.springframework.web.bind.annotation.RequestMapping;
 8 import org.springframework.web.bind.annotation.RestController;
 9 
10 import java.util.List;
11 
12 /**
13  * @version 1.0
14  * @ClassName ConfigBeanController
15  * @Description TODO
16  * @Author WSC
17  * @Date 2019/8/27 14:33
18  **/
19 @RestController
20 public class ConfigBeanController {
21     @Autowired
22     private FeignService feignService;
23     @RequestMapping(value ="/product/add")
24     public boolean add(Product product){
25         return feignService.add(product);
26     }
27 
28     @RequestMapping(value = "/consumer/{id}")
29     public Product get(@PathVariable("id") Long id) {
30         return feignService.get(id);
31     }
32     @RequestMapping(value = "/consumer/product/list")
33     public List<Product> list() {
34         return feignService.list();
35     }
36 }

View Code

6.....Start_800_feign

 1 package com.wsc.core;
 2 
 3 import org.springframework.boot.SpringApplication;
 4 import org.springframework.boot.autoconfigure.SpringBootApplication;
 5 import org.springframework.cloud.netflix.eureka.EnableEurekaClient;
 6 import org.springframework.cloud.openfeign.EnableFeignClients;
 7 
 8 /**
 9  * @version 1.0
10  * @ClassName Start_80
11  * @Description TODO
12  * @Author WSC
13  * @Date 2019/8/27 14:31
14  **/
15 @EnableFeignClients(basePackages ="com.wsc.core")  //feign  通过接口+注解    获得服务的调用
16 @EnableEurekaClient //自动注册eureka
17 @SpringBootApplication
18 public class Start_800_feign {
19     public static void main(String[] args) {
20         SpringApplication.run(Start_800_feign.class,args);
21     }
22 }

View Code

4..... Hystrix Dasboard 监控平台搭建

　　　　Hystrix 还提供了准时的调用监控（Hystrix Dashboard) Hystrix会持续的记录所有的通过Hystrix的请求进行的信息，并以统计报表和图形的形式展示给用户看包含执行了多少次的请求多少次成功和失败

　　　　　　 Netflix 通过Hystrix-metrics-event-stream 项目实现了对以上指标的监控 springCloud 也提供了Hystrix Dashboard 的整合对监控内容转换成可视化界面

1.... 启动类

 1 package com.wsc.core.start;
 2 
 3 import org.springframework.boot.SpringApplication;
 4 import org.springframework.boot.autoconfigure.SpringBootApplication;
 5 import org.springframework.cloud.netflix.hystrix.dashboard.EnableHystrixDashboard;
 6 
 7 /**
 8  * @version 1.0
 9  * @ClassName Start_9001
10  * @Description TODO
11  * @Author WSC
12  * @Date 2019/9/2 14:58
13  **/
14 @EnableHystrixDashboard   // 开启服务监控
15 @SpringBootApplication
16 public class Start_9001 {
17     public static void main(String[] args) {
18         SpringApplication.run(Start_9001.class,args);
19     }
20 }

启动类

2....pom.xml

 1 <?xml version="1.0" encoding="UTF-8"?>
 2 <project xmlns="http://maven.apache.org/POM/4.0.0"
 3          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 4          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
 5     <parent>
 6         <artifactId>spring-cloud-parent</artifactId>
 7         <groupId>com.wsc</groupId>
 8         <version>1.0-SNAPSHOT</version>
 9         <relativePath>../springCloud/spring-cloud-parent/pom.xml</relativePath>
10     </parent>
11     <modelVersion>4.0.0</modelVersion>
12 
13     <artifactId>hystrix-dashboard-9001</artifactId>
14 
15 
16     <properties>
17         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
18         <maven.compiler.source>1.8</maven.compiler.source>
19         <maven.compiler.target>1.8</maven.compiler.target>
20     </properties>
21     <dependencies>
22         <dependency>
23             <groupId>com.wsc</groupId>
24             <artifactId>common</artifactId>
25             <version>1.0-SNAPSHOT</version>
26         </dependency>
27         <dependency>
28             <groupId>org.springframework.boot</groupId>
29             <artifactId>spring-boot-starter-web</artifactId>
30         </dependency>
31         <dependency>
32 <!--            熔断器-->
33             <groupId>org.springframework.cloud</groupId>
34             <artifactId>spring-cloud-starter-netflix-hystrix</artifactId>
35         </dependency>
36         <dependency>
37 <!--            监控-->
38             <groupId>org.springframework.cloud</groupId>
39             <artifactId>spring-cloud-starter-netflix-hystrix-dashboard</artifactId>
40         </dependency>
41     </dependencies>
42 </project>

pom.xml

3......application.yml

1 server:
2   port: 9001
3 
4   # 进入  hystrix  界面:::  http://localhost:9001/hystrix
5 
6　　#  进入 监测 界面   ：：：：   http://localhost:9001/actuator/hystrix.stream

相关阅读:
链表操作
 建立简单的链表
 scanf()函数用法小结
 快速求某年某月是第几天（未整理）
合并两个有序数组(未整理)
如何配置JAVA的环境变量、Tomcat环境变量
 【动态规划】流水作业调度问题与Johnson法则
 分治法（二）
分治法（一）
HTML5入门十一---Canvas画布实现画图（二）
原文地址：https://www.cnblogs.com/wangshichang/p/11449106.html