【springcloud】简单创建一个springcloud项目

 

简单的springcloud搭建

注册中心：eureka

接口服务：server

web服务：web

网关：zuul

 

1、创建一个空的maven项目为springcloud

 

 

 

 

 

 

 

 

  

 

  

2、修改pom.xml文件

 

<?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.xiaostudy</groupId>
    <artifactId>springcloudTest</artifactId>
    <version>1.0-SNAPSHOT</version>
    <packaging>pom</packaging>

    <modules>
    </modules>

    <build>
        <plugins>
            <!--参考文章：https://blog.csdn.net/liupeifeng3514/article/details/80236077-->
            <plugin>
                <!-- 指定maven编译的jdk版本,如果不指定,maven3默认用jdk 1.5 maven2默认用jdk1.3 -->
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <configuration>
                    <!-- 源代码使用的JDK版本 -->
                    <source>1.8</source>
                    <!-- 需要生成的目标class文件的编译版本 -->
                    <target>1.8</target>
                    <!-- 字符集编码 -->
                    <encoding>UTF-8</encoding>
                    <!-- 跳过测试 -->
                    <skip>true</skip>
                </configuration>
            </plugin>
        </plugins>
    </build>

</project>

pom.xml文件

 

3、创建注册中心Eureka

 

 

  

 

 

 

 

 

 

 

 

 

 

  

 3.1、配置注册中心eureka的配置文件application.yml

 1 server:
 2   port: 9900
 3 
 4 eureka:
 5   instance:
 6     hostname: localhost
 7   client:
 8     #     声明是否将自己的信息注册到 Eureka 服务器上
 9     registerWithEureka: false
10     #     是否到 Eureka 服务器中抓取注册信息
11     fetchRegistry: false
12     serviceUrl:
13       defaultZone: http://@eureka.user.name@:@eureka.user.password@@${eureka.instance.hostname}:${server.port}/eureka/
14 
15 
16 spring:
17   application:
18     name: eurka-service
19   security:
20     user:
21       name: @eureka.user.name@
22       password: @eureka.user.password@

 

 

 

 

 

 

<?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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.2.6.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>com.xiaostudy</groupId>
    <artifactId>eureka</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>eureka</name>
    <description>Demo project for Spring Boot</description>

    <properties>
        <java.version>1.8</java.version>
        <spring-cloud.version>Hoxton.SR3</spring-cloud.version>

        <eureka.user.name>admin</eureka.user.name>
        <eureka.user.password>xiaostudy.test</eureka.user.password>
    </properties>

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

        <!--为eureka配置账号密码-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-security</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
            <exclusions>
                <exclusion>
                    <groupId>org.junit.vintage</groupId>
                    <artifactId>junit-vintage-engine</artifactId>
                </exclusion>
            </exclusions>
        </dependency>
    </dependencies>

    <dependencyManagement>
        <dependencies>
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-dependencies</artifactId>
                <version>${spring-cloud.version}</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>
        <resources>
            <resource>
                <!--指定resources插件处理哪个目录下的资源文件-->
                <directory>src/main/resources</directory>
                <!--打开资源过滤功能-->
                <filtering>true</filtering>
            </resource>
        </resources>
    </build>

</project>

eureka的pom.xml文件

 

3.2、添加@EnableEurekaServer注解

 

 

  

3.3、启动注册中心

 

 

  

注：如果启动报读取不了yml文件，可能是编码问题。把编码设置成utf-8就可以了。

 

3.4、访问

http://localhost:9900/

 

 

 

 

 

  

 注：如果启动后登陆不了，可以试试添加配置类（必须，不然其他服务发现不了注册中心）

 1 package com.xiaostudy.eureka.config;
 2 
 3 import org.springframework.security.config.annotation.web.builders.HttpSecurity;
 4 import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;
 5 import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
 6 
 7 @EnableWebSecurity
 8 public class WebSecurityConfig extends WebSecurityConfigurerAdapter {
 9 
10     @Override
11     protected void configure(HttpSecurity http) throws Exception {
12         //关闭csrf
13         http.csrf().disable();
14         super.configure(http);
15     }
16 }

 

4、创建一个server模块，模拟发布接口

 

 

 

 

 

 

 

 

 

 

 

  

4.1、添加注解@EnableDiscoveryClient和@EnableFeignClients

 

 

 server的yml文件

 1 server:
 2   port: 9901
 3 
 4 eureka:
 5   instance:
 6     preferIpAddress: true
 7     instance-id: ${spring.cloud.client.ip-address}:${server.port}
 8   client:
 9     serviceUrl:
10       defaultZone: http://@eureka.user.name@:@eureka.user.password@@localhost:9900/eureka/
11 
12 spring:
13   application:
14     name: server-service
15   cloud:
16     loadbalancer:
17       retry:
18         enabled: false

 

 

 

 

 

<?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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.2.6.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>com.xiaostudy</groupId>
    <artifactId>server</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>server</name>
    <description>Demo project for Spring Boot</description>

    <properties>
        <java.version>1.8</java.version>
        <spring-cloud.version>Hoxton.SR3</spring-cloud.version>

        <eureka.user.name>admin</eureka.user.name>
        <eureka.user.password>xiaostudy.test</eureka.user.password>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-openfeign</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
            <exclusions>
                <exclusion>
                    <groupId>org.junit.vintage</groupId>
                    <artifactId>junit-vintage-engine</artifactId>
                </exclusion>
            </exclusions>
        </dependency>
    </dependencies>

    <dependencyManagement>
        <dependencies>
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-dependencies</artifactId>
                <version>${spring-cloud.version}</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>
        <resources>
            <resource>
                <!--指定resources插件处理哪个目录下的资源文件-->
                <directory>src/main/resources</directory>
                <!--打开资源过滤功能-->
                <filtering>true</filtering>
            </resource>
        </resources>
    </build>

</project>

server的pom.xml文件

 

4.2、创建services及实现类、controller和接口

services接口

package com.xiaostudy.server.services;

public interface TestServices {

    public String get(String name);
}

services实现类

package com.xiaostudy.server.services.impl;

import com.xiaostudy.server.services.TestServices;
import org.springframework.stereotype.Service;

@Service
public class TestServicesImpl implements TestServices {

    @Override
    public String get(String name) {
        return "参数name：" + name;
    }
}

controller

package com.xiaostudy.server.controller;

import com.xiaostudy.server.services.TestServices;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

@RestController
@RequestMapping("/test")
public class TestController {

    @Autowired
    private TestServices testServices;

    @RequestMapping("/get")
    public String get(String name) {
        return testServices.get(name);
    }
}

接口

package com.xiaostudy.server.apis;

import org.springframework.cloud.openfeign.FeignClient;
import org.springframework.web.bind.annotation.RequestMapping;

@FeignClient(name = "server-service", contextId = "TestServicesApis")
public interface TestServicesApis {

    @RequestMapping("/test/get")
    public String get(String name);
}

 

4.3、启动server

 

 

 

 

 

 

5、添加一个web模块，通过接口调用服务

 

 

 

 

 

<?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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.2.6.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>com.xiaostudy</groupId>
    <artifactId>web</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>web</name>
    <description>Demo project for Spring Boot</description>

    <properties>
        <java.version>1.8</java.version>
        <spring-cloud.version>Hoxton.SR3</spring-cloud.version>

        <eureka.user.name>admin</eureka.user.name>
        <eureka.user.password>xiaostudy.test</eureka.user.password>
    </properties>

    <dependencies>
        <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.xiaostudy</groupId>
            <artifactId>server</artifactId>
            <version>0.0.1-SNAPSHOT</version>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
            <exclusions>
                <exclusion>
                    <groupId>org.junit.vintage</groupId>
                    <artifactId>junit-vintage-engine</artifactId>
                </exclusion>
            </exclusions>
        </dependency>
    </dependencies>

    <dependencyManagement>
        <dependencies>
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-dependencies</artifactId>
                <version>${spring-cloud.version}</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>
        <resources>
            <resource>
                <!--指定resources插件处理哪个目录下的资源文件-->
                <directory>src/main/resources</directory>
                <!--打开资源过滤功能-->
                <filtering>true</filtering>
            </resource>
        </resources>
    </build>

</project>

web的pom.xml文件

 

web的配置文件application.yml

server:
  port: 9902

eureka:
  instance:
    preferIpAddress: true
    instance-id: ${spring.cloud.client.ip-address}:${server.port}
  client:
    serviceUrl:
      defaultZone: http://@eureka.user.name@:@eureka.user.password@@localhost:9900/eureka/

spring:
  application:
    name: web-service
  cloud:
    loadbalancer:
      retry:
        enabled: false

 

 web的controller

package com.xiaostudy.web.controller;

import com.xiaostudy.server.apis.TestServicesApis;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

@RestController
@RequestMapping("/test")
public class TestWebController {

    @Autowired
    private TestServicesApis testServicesApis;

    @RequestMapping("/getTest")
    public String getTest() {
        return testServicesApis.get("通过web调用的");
    }
}

启动web

 

 

 

 

 

 6、添加网关zuul

 

 

 

 

 

 

<?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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.2.6.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>com.xiaostudy</groupId>
    <artifactId>zuul</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>zuul</name>
    <description>Demo project for Spring Boot</description>

    <properties>
        <java.version>1.8</java.version>
        <spring-cloud.version>Hoxton.SR3</spring-cloud.version>

        <eureka.user.name>admin</eureka.user.name>
        <eureka.user.password>xiaostudy.test</eureka.user.password>
    </properties>

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

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
            <exclusions>
                <exclusion>
                    <groupId>org.junit.vintage</groupId>
                    <artifactId>junit-vintage-engine</artifactId>
                </exclusion>
            </exclusions>
        </dependency>
    </dependencies>

    <dependencyManagement>
        <dependencies>
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-dependencies</artifactId>
                <version>${spring-cloud.version}</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>
        <resources>
            <resource>
                <!--指定resources插件处理哪个目录下的资源文件-->
                <directory>src/main/resources</directory>
                <!--打开资源过滤功能-->
                <filtering>true</filtering>
            </resource>
        </resources>
    </build>

</project>

zuul的pom.xml文件

 

 

 

server:
  port: 9903

eureka:
  instance:
    preferIpAddress: true
    instance-id: ${spring.cloud.client.ip-address}:${server.port}
  client:
    serviceUrl:
      defaultZone: http://@eureka.user.name@:@eureka.user.password@@localhost:9900/eureka/

spring:
  application:
    name: zuul-service
  cloud:
    loadbalancer:
      retry:
        enabled: false

zuul:
  routes:
    server:
      path: /server/**
      serviceId: server-service
      sensitiveHeaders: "*"
    web:
      path: /web/**
      serviceId: web-service
      sensitiveHeaders: "*"

zuul的application.yml文件

添加注解@EnableDiscoveryClient和@EnableZuulProxy

 

 

 启动zuul

 

 

 

 

 

 

 

 

后续在此基础上完善

 

来源：oschina

链接：https://my.oschina.net/u/4263893/blog/3275753