spring alibaba官方文档 springcloudalibaba官方文档

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mob6454cc690811 2024-06-12 10:00:20

文章标签 spring alibaba官方文档 spring cloud spring 后端 ide 文章分类 架构后端开发

文章目录

SpringCloud Alibaba Nacos

创建Nacos 服务提供者

需求说明/图解
创建member-service-nacos-provider-10006 并注册到NacosServer8848

创建member-service-nacos-provider-10006
修改本模块pom.xml
创建application.yml
创建主启动类
为看到更好提示，修改Controller
测试

观察nacos 服务是否注册成功
浏览器输出: http://localhost:10006/member/get/1

SpringCloud Alibaba Nacos

创建Nacos 服务提供者

需求说明/图解

spring alibaba官方文档 springcloudalibaba官方文档_spring

创建member-service-nacos-provider-10006 并注册到NacosServer8848

创建member-service-nacos-provider-10006

参考member-service-nacos-provider-10004 来创建member-service-nacos-provider-10006 即可
创建好后，使用member-service-nacos-provider-10004 的源码和配置替换member-service-nacos-provider-10006 生成的代码
提醒，拷贝时不要忘记拷贝resources/mapper/MemberMapper.xml 这些xxx.xml 文件

修改本模块pom.xml

将member-service-provider-10000 的pom.xml 的…拷贝过来，修改即可

<?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>e-commerce-center</artifactId>
        <groupId>com.my.springcloud</groupId>
        <version>1.0-SNAPSHOT</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>

    <artifactId>member-service-nacos-provider-10006</artifactId>


    <!--引入相关的依赖-->
    <dependencies>

        <!--引入nacos-starter nacos的场景启动器starter -->
        <dependency>
            <groupId>com.alibaba.cloud</groupId>
            <artifactId>spring-cloud-alibaba-nacos-discovery</artifactId>
        </dependency>

        <!--引入web-starter 说明我们使用版本仲裁(从父项目继承了版本)
        -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>


        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-actuator</artifactId>
        </dependency>

        <!--引入mybatis-starter 整合到springboot-->
        <dependency>
            <groupId>org.mybatis.spring.boot</groupId>
            <artifactId>mybatis-spring-boot-starter</artifactId>
        </dependency>

        <!--引入druid-starter-->
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>druid-spring-boot-starter</artifactId>
            <!--这里需要我们指定版本, 因为父项目没有-->
            <version>1.1.17</version>
        </dependency>

        <!--引入mysql依赖,使用版本仲裁-->
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
        </dependency>

        <!--spring-boot-start-jdbc引入-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-jdbc</artifactId>
        </dependency>

        <!--lombok-->
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <optional>true</optional>
        </dependency>

        <!--引入test-starter-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
        </dependency>
        <!--引入公共模块-->
        <dependency>
            <groupId>com.my.springcloud</groupId>
            <artifactId>e_commerce_center-common-api</artifactId>
            <version>${project.version}</version>
        </dependency>
    </dependencies>
</project>

创建application.yml

将member-service-nacos-provider-10004 的application.yml 拷贝过来，修改端口即可

server:
  port: 10006

spring:
  application:
    name: member-service-nacos-provider #配置应用的名称
  datasource:
    type: com.alibaba.druid.pool.DruidDataSource
    url: jdbc:mysql://localhost:3306/e_commerce_center_db?useSSL=true&useUnicode=true&characterEncoding=UTF-8
    username: root
    password: 123456
  #配置nacos
  cloud:
    nacos:
      discovery:
        server-addr: localhost:8848 #配置Nacos Server的地址
#配置暴露所有的监控点
management:
  endpoints:
    web:
      exposure:
        include: '*'
#配置mybatis
mybatis:
  mapper-locations: classpath:mapper/*.xml #指定mapper.xml文件位置
  type-aliases-package: com.my.springcloud.entity # 实例类所在的包,这样通过类名就可以引用

创建主启动类

创建主启动类MemberNacosProviderApplication10006

//@EnableDiscoveryClient 引入的是Nacos发现注解
@EnableDiscoveryClient
@SpringBootApplication
public class MemberNacosProviderApplication10006 {
    public static void main(String[] args) {
        SpringApplication.run(MemberNacosProviderApplication10006.class,args);
    }
}

为看到更好提示，修改Controller

修改com/my/springcloud/controller/MemberController.java 的输出信息

@RestController
@Slf4j
public class MemberController {

    //装配MemberService
    @Resource
    private MemberService memberService;

    //添加方法/接口
    //说明
    //1. 我们的前端如果是以json格式来发送添加信息Member， 那么我们需要使用@RequestBody
    //   , 才能将数据封装到对应的bean, 同时保证http的请求头的 content-type是对应
    //2. 如果前端是以表单形式提交了，则不需要使用@RequestBody, 才会进行对象参数封装, 同时保证
    //   http的请求头的 content-type是对应
    @PostMapping("/member/save")
    public Result save(@RequestBody Member member) {
        log.info("service-provider member={}", member);
        int affected = memberService.save(member);
        if (affected > 0) { //说明添加成功
            return Result.success("添加会员成功 member-service-nacos-provider-10006", affected);
        } else {
            return Result.error("401", "添加会员失败");
        }
    }

    //查询的方法/接口
    //这里使用url占位符+@PathVariable
    @GetMapping("/member/get/{id}")
    //public Result getMemberById(@PathVariable("id") Long id, HttpServletRequest request) {
    public Result getMemberById(@PathVariable("id") Long id) {

        Member member = memberService.queryMemberById(id);

        //使用Result把查询到的结果返回
        if (member != null) {
            //return Result.success("查询会员成功 member-service-provider-10000 " + color + "-" + address, member);
            return Result.success("查询会员成功 member-service-nacos-provider-10006", member);
        } else {
            return Result.error("402", "ID= " + id + "不存在");
        }

    }
}