SpringCloud Alibaba完整使用

     首先创建pom工程  ***Alibaba-Cloud***
|<?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.hxx.alibaba</groupId>
<artifactId>Alibaba-Cloud</artifactId>
<version>1.0-SNAPSHOT</version>
<modules>
<module>Alibaba-Cloud-Member</module>
<module>Alibaba-Cloud-Provder</module>
<module>Alibaba-Gateway-Api</module>
</modules>
<packaging>pom</packaging>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.0.1.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-dependencies</artifactId>
<version>Finchley.SR1</version>
<type>pom</type>
<scope>import</scope>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-alibaba-dependencies</artifactId>
<version>0.2.2.RELEASE</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<dependencies>
<!--引入配置中心阿里巴巴-->
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-alibaba-nacos-config</artifactId>
</dependency>
<!--引入注册中心阿里巴巴-->
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
</dependency>
<!--sentinel-->
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-alibaba-sentinel</artifactId>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<version>1.18.2</version>
<optional>true</optional>
</dependency>
</dependencies> </project>|
工程名称  ​Alibaba-Cloud-Provder
​​package com.hxx.alibaba.controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
/**
* 使用说明： 使用了 yaml配置中心后我的请求一直访问不到资源是404  出现这个情况的话 在Controller类在加一个@RequestMapping("/alibaba")
*
* @author huangxiangxiang
* @version 2.0.0
* @createTime 2019年09月10日 13:25:00
*/
@RestController
@RequestMapping("/alibaba")
public class ProvderController {
@RequestMapping("/getNmae")
public String getNmaeList(String name) {
System.out.println("生产者");
return name + "生产者";
}
}

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.client.discovery.EnableDiscoveryClient;
/**
启动类
* 使用说明：生产者生产东西
*
* @author huangxiangxiang
* @version 2.0.0
* @createTime 2019年09月10日 13:22:00
*/
@SpringBootApplication
@EnableDiscoveryClient
public class ProvderApp {
public static void main(String[] args) {
SpringApplication.run(ProvderApp.class, args);
}
}

创建消费者工程 Alibaba-Cloud-Member

package com.hxx.alibaba.controller;

import com.hxx.alibaba.consum.ConsumService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;

/**
 * 使用说明：
 *
 * @author huangxiangxiang
 * @version 2.0.0
 * @createTime 2019年09月10日 13:32:00
 */

@RestController
@RequestMapping("/aonsum")
public class ConsumController {

    @Autowired
    private ConsumService consumService;

    @RequestMapping("/getNmae")
    public String getNmae(@RequestParam("name") String name) {
        String nmaes = consumService.getNmae(name);
        System.out.println(".......消费者fegin调用.....配置中心................." + nmaes);
        return nmaes;
    }
}

import com.hxx.alibaba.exceptionhandler.SentinelExceptionHandler;
import org.springframework.cloud.openfeign.FeignClient;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
/**
* 使用说明：远程调用fegin --- 加入fallback 熔断器  解决连锁反应 被调用服务挂的的时候 和服务崩溃的情况
*
* @author huangxiangxiang
* @version 2.0.0
* @createTime 2019年09月10日 13:30:00
*/
@FeignClient(value = "alibaba-cloud-prod-provder",fallback = SentinelExceptionHandler.class)
public interface ConsumService {
@RequestMapping("/alibaba/getNmae")
public String getNmae(@RequestParam("name")  String name);
}

package com.hxx.alibaba.exceptionhandler;
import com.hxx.alibaba.consum.ConsumService;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Component;
/**
* 使用说明：实现限流的异常处理
*
* @author huangxiangxiang
* @version 2.0.0
* @createTime 2019年08月22日 18:07:00
*/
@Component
public class SentinelExceptionHandler implements ConsumService {
final static Logger logger = LoggerFactory.getLogger(SentinelExceptionHandler.class);
@Override
public String getNmae(String name) {
logger.info("sentinel 熔断处理 {}", "SentinelExceptionHandler");
return "Sentinel {由于你的访问次数太多，已为你限流、您已进入保护模式，请稍后再试！}>>>熔断处理函数";
}
}

bootstrap.properties 配置文件
#端口已经配置到 -NACOS 注册中心
spring.application.name=alibaba-cloud-member
#配置文件的地址
spring.cloud.nacos.config.server-addr=192.168.220.129:8848
#注册中心的地址
#spring.cloud.nacos.discovery.server-addr=192.168.220.128:8848
# 限流监控中心
#spring.cloud.sentinel.transport.dashboard=192.168.220.128:8080
#spring.cloud.sentinel.eager=true
spring.cloud.nacos.config.file-extension= yaml

package alibaba.fielt;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.google.common.collect.Maps;
import org.springframework.cloud.gateway.filter.GatewayFilterChain;
import org.springframework.cloud.gateway.filter.GlobalFilter;
import org.springframework.core.Ordered;
import org.springframework.core.io.buffer.DataBuffer;
import org.springframework.http.HttpStatus;
import org.springframework.http.server.reactive.ServerHttpResponse;
import org.springframework.stereotype.Component;
import org.springframework.web.server.ServerWebExchange;
import reactor.core.publisher.Mono;
import java.util.Map;
/**
* 使用说明： 鉴权过滤器
*
* @author huangxiangxiang
* @version 2.0.0
* @createTime 2019年09月10日 15:55:00
*/
@Component
public class AuthFilter implements GlobalFilter, Ordered {
@Override
public Mono<Void> filter(ServerWebExchange exchange, GatewayFilterChain chain) {
String token = exchange.getRequest().getQueryParams().getFirst("token");
if (token == null || token.isEmpty()) {
ServerHttpResponse response = exchange.getResponse();
Map<Object, Object> map = Maps.newHashMap();
map.put("code", 401);
map.put("message", "非法请求！");
map.put("cause", "Token not is null");
ObjectMapper mapper = new ObjectMapper();
try {
byte[] bytes = mapper.writeValueAsBytes(map);
// 输出错误信息到页面
DataBuffer buffer = response.bufferFactory().wrap(bytes);
response.setStatusCode(HttpStatus.UNAUTHORIZED);
response.getHeaders().add("Content-Type", "application/json;charset=UTF-8");
return response.writeWith(Mono.just(buffer));
} catch (JsonProcessingException e) {
e.printStackTrace();
}
}
return chain.filter(exchange);
}
//设置过滤器的执行顺序
@Override
public int getOrder() {
return Ordered.LOWEST_PRECEDENCE;
}
}
package alibaba;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.client.discovery.EnableDiscoveryClient;
/**
* 使用说明： 路由网管启动类
*
* @author huangxiangxiang
* @version 2.0.0
* @createTime 2019年09月10日 14:27:00
*/
@SpringBootApplication
@EnableDiscoveryClient
public class GatewayApp {
public static void main(String[] args) {
SpringApplication.run(GatewayApp.class, args);
}
}

#1、端口已经配置到 -NACOS 注册中心
#--这个要和 Nacos 的 Data ID 前缀一致
spring.application.name=alibaba-cloud-gateway
#2、配置文件的地址
spring.cloud.nacos.config.server-addr=192.168.220.129:8848
#3、注册中心的地址
spring.cloud.nacos.discovery.server-addr=192.168.220.129:8848
#4、限流监控中心
spring.cloud.sentinel.transport.dashboard=192.168.220.129:8080
spring.cloud.sentinel.eager=true
#5、配置以yaml的形式----不配置就拉取不到
spring.cloud.nacos.config.file-extension=yaml
#路由的网关  -id -uri 去掉-  在yml中不要在 路由中加 -

server:
    port: 9000 spring:
    cloud:
        gateway:
            discovery:
                locator:
                    enabled: true
            routes:
                id: ALIBABA-CLOUD-MEMBER
                uri: lb://alibaba-cloud-member
                predicates:
                  Method=GET,POST
                id: alibaba-cloud-provder
                uri: lb://alibaba-cloud-provder
                predicates:
                  Method=GET,POST logging:   level:
    org.springframework.cloud.gateway: debug

-javaagent:D:\hxxcloud02\Alibaba-Cloud\Alibaba-cloud-external-skywalking\agent\skywalking-agent.jar
-Dskywalking.agent.service_name=alibaba-cloud-prod-provder
-Dskywalking.collector.backend_service=192.168.220.129:8080