springcloud微服务实例

SOA 框架优缺点

打车系统微服务

微服务结构图

实例

依赖

<parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>1.5.10.RELEASE</version>
        <relativePath />
    </parent>

    <dependencyManagement>
        <dependencies>
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-dependencies</artifactId>
                <version>Edgware.SR2</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
        </dependencies>
    </dependencyManagement>

注册中心 appMain

@SpringBootApplication
@EnableEurekaServer
public class EurekaApplication {

    public static void main(String[] args) {
        new SpringApplicationBuilder(EurekaApplication.class).web(true).run(args);
    }
}

application.yml

spring:
  application:
    name: userui
server:
  port: 80
eureka:
  instance:
    hostname: localhost
    #注册到注册中心的微服务都是IP地址
    preferIpAddress: true
  client:
    #是否注册到注册中心
    registerWithEureka: true
    #是否抓取注册中心的注册信息
    fetchRegistry: true
    serviceUrl:
      #微服务和客户端用来注册和发现的地址
      defaultZone: http://192.168.174.129:8761/eureka/

用户微服务

application.yml

server:
  port: 8881
eureka:
  instance:
    hostname: localhost
    #注册到注册中心的微服务都是IP地址
    preferIpAddress: true
  client:
    #是否注册到注册中心
    registerWithEureka: true
    #是否抓取注册中心的注册信息
    fetchRegistry: false
    serviceUrl:
      #微服务和客户端用来注册和发现的地址
      defaultZone: http://192.168.174.129:8761/eureka/
spring:
  application:
    name: ouyang
  datasource:
    driver-class-name: com.mysql.jdbc.Driver
    url: jdbc:mysql://192.168.0.250/school
    username: root
    password: ps123456

用户微服务pom

<?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">
    <parent>
        <artifactId>SpringCloud</artifactId>
        <groupId>cn.ps</groupId>
        <version>1.0-SNAPSHOT</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>

    <artifactId>SpringcCloud_UserServer</artifactId>

    <dependencies>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-eureka</artifactId>
        </dependency>
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-jpa</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>com.baomidou</groupId>
            <artifactId>mybatis-plus-boot-starter</artifactId>
            <version>3.0.6</version>
        </dependency>

        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <version>1.16.12</version>
            <scope>provided</scope>
        </dependency>
    </dependencies>
     <!--将依赖一起打包，否则无法运行-->
        <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>
</project>

用户微服务结果类

package cn.ps.entity;

import lombok.Data;
import lombok.NoArgsConstructor;
import java.util.List;

@Data
@NoArgsConstructor
public class Result {
    private List data;
    private int code;
    private String msg;
}

用户微服务结果类

package cn.ps.entity;

import lombok.Data;
import lombok.NoArgsConstructor;

@Data
@NoArgsConstructor
public class Users {
    private String userName;
    private String sex;
}

用户微服务Mapper

package cn.ps;

import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.builder.SpringApplicationBuilder;
import org.springframework.cloud.netflix.eureka.EnableEurekaClient;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;

@SpringBootApplication
@EnableEurekaClient
@RestController
package cn.ps.mapper;

import cn.ps.entity.Users;
import com.baomidou.mybatisplus.core.mapper.BaseMapper;
import org.apache.ibatis.annotations.Mapper;
import org.apache.ibatis.annotations.Param;
import org.apache.ibatis.annotations.Select;
import java.util.List;

@Mapper
public interface UsersMapper extends BaseMapper {
    @Select("select * from users where userName=#{userName} and sex=#{sex}")
    public List<Users> query(@Param("userName") String userName, @Param("sex") String sex);
}

用户操作界面

登陆界面

 <font size="5" color="990000">请登录</font><hr>
    <form name=“frmManage” method="post"
          action="rlogin">
        <font size="3" color="990000">
            <label>姓&nbsp;&nbsp;名</label>
            <input type="text" name="userName"><br>
            <label>性&nbsp;&nbsp;别</label>
            <input type="text" name="sex" ><br>
            <input type="submit" value="登录" />
        </font>
    </form>

打包

 <!--将依赖一起打包，否则不会加依赖，无法运行-->
    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>

docker 运行

java -jar jar包名   运行jar项目
netstat -aon | gind '端口号'   	查看端口被占用的进程

监控界面，查看已注册微服务

url 输入localhost：8761