1.新建maven工程,在pom.xml导入相关依赖
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.5.2.RELEASE</version>
<relativePath /> <!-- lookup parent from repository -->
</parent>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
<java.version>1.8</java.version>
</properties>
<dependencies>
<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.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
</dependencies>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-dependencies</artifactId>
<version>Dalston.RC1</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
<repositories>
<repository>
<id>spring-milestones</id>
<name>Spring Milestones</name>
<url>https://repo.spring.io/milestone</url>
<snapshots>
<enabled>false</enabled>
</snapshots>
</repository>
</repositories>
2.在resources目录下新建application.yml
eureka:
client:
serviceUrl:
defaultZone: http://localhost:5555/eureka/
server:
port: 9999
spring:
application:
name: server-zuul
zuul:
routes:
api-a:
path: /api-fegin/**
service-id: server-fegin
api-b:
path: /api-provision/**
service-id: server-provision
3.新建MyFiler继承ZuulFilter
package com.zuul.filter;
import javax.servlet.http.HttpServletRequest;
import org.springframework.stereotype.Component;
import com.netflix.zuul.ZuulFilter;
import com.netflix.zuul.context.RequestContext;
@Component
public class MyFilter extends ZuulFilter{
@Override
public boolean shouldFilter() {
// TODO Auto-generated method stub
return true;
}
@Override
public Object run() {
//用于过滤是否携带token
/*
* RequestContext currentContext = RequestContext.getCurrentContext();
* HttpServletRequest request = currentContext.getRequest(); String parameter =
* request.getParameter("token"); if(parameter!=null) { return null; }
* currentContext.setSendZuulResponse(false);
* currentContext.setResponseStatusCode(401); try {
* currentContext.getResponse().getWriter().write("error"); } catch (Exception
* e) { // TODO: handle exception }
*/
return null;
}
@Override
public String filterType() {
// TODO Auto-generated method stub
return "pre";
}
@Override
public int filterOrder() {
// TODO Auto-generated method stub
return 0;
}
}
4.新建启动类
package com.zuul;
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;
@SpringBootApplication
@EnableEurekaClient
@EnableZuulProxy
public class ZuulApp {
public static void main(String[] args) {
SpringApplication.run(ZuulApp.class, args);
}
}
5.注意:启动服务顺序
1.启动eureka
2.启动服务server-provision
3.启动服务server-fegin
4.查询eureka,服务是否注册成功
5.查看上面服务启动成功后,启动zuul服务
6.访问网关,携带server-fegin服务请求路径,会自动跳转到server-fegin服务的username方法
http://localhost:9999/api-fegin/username
7.访问网关,携带server-provision服务请求路径,会自动跳转到server-provision服务的username方法
http://localhost:9999/api-provision/username
8.有效解决前后端分离跨域问题