Spring Cloud——構建服務提供者

構建服務提供者 springcloud-study-provider-dept-8001

pom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">
    <parent>
        <artifactId>springcloud-study</artifactId>
        <groupId>com.sc.springcloud</groupId>
        <version>1.0-SNAPSHOT</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>

    <groupId>com.sc.springcloud</groupId>
    <artifactId>springcloud-study-provider-dept-8001</artifactId>
    <version>1.0-SNAPSHOT</version>


    <dependencies>
        <!--引入自己定義的api通用包-->
        <dependency>
            <groupId>com.sc.springcloud</groupId>
            <artifactId>springcloud-study-api</artifactId>
            <version>${project.version}</version>
        </dependency>
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
        </dependency>
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
        </dependency>
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>druid</artifactId>
        </dependency>
        <dependency>
            <groupId>ch.qos.logback</groupId>
            <artifactId>logback-core</artifactId>
        </dependency>
        <dependency>
            <groupId>org.mybatis.spring.boot</groupId>
            <artifactId>mybatis-spring-boot-starter</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-jetty</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
        </dependency>
        <!--熱部署 修改後立即生效-->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>springloaded</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-devtools</artifactId>
        </dependency>

    </dependencies>

</project>

yml文件配置

#配置服務器信息
server:
  port: 8001
  #context-path: /study 配置根目錄


#數據庫信息配置
spring:
  application:
    name: study-springcloud-dept  #應用名稱
  datasource:
    url: jdbc:mysql://localhost:3306/study?useUnicode=true&characterEncoding=UTF-8&serverTimezone=UTC&verifyServerCertificate=false&useSSL=false
    username: root
    password: root
    driver-class-name: com.mysql.jdbc.Driver
    type: com.alibaba.druid.pool.DruidDataSource

    #druid連接池配置
    initialSize: 5
    minIdle: 5
    maxActive: 20
    maxWait: 60000
    timeBetweenEvictionRunsMillis: 60000
    minEvictableIdleTimeMillis: 300000
    validationQuery: SELECT 1 FROM DUAL
    testWhileIdle: true
    testOnBorrow: false
    testOnReturn: false
    poolPreparedStatements: true
    # 配置監控統計攔截的filters,去掉監控界面sql無法統計，‘wall’用於防火牆
    filters: stat,wall,log4j
    maxPoolPreparedStatementPerConnectionSize: 20
    userGlobalDataSourceStat: true
    connectionProperties: druid.stat.mergeSql=true;druid.stat.slowSqlMillis=500

#Mybatis配置
mybatis:
  mapper-locations: classpath:mapper/*.xml
  type-aliases-package: com.dept.entity
  configuration:
    map-underscore-to-camel-case: true #開啓駝峯命名
    cache-enabled: true #開啓二級緩存

創建一個controller、service、dao、mapper.xml

@RestController
public class DeptController {

    @Autowired
    private DeptService deptService;

    @RequestMapping(value = "/dept/add",method = RequestMethod.POST)
    public boolean addDept(@RequestBody DeptEntity deptEntity) {
        return   deptService.addDept(deptEntity);
    }

    @RequestMapping(value = "/dept/findById/{deptNo}",method = RequestMethod.GET)
    public DeptEntity findById(Long deptNo) {
        return  deptService.findById(deptNo);
    }

    @RequestMapping(value = "/dept/findAll",method = RequestMethod.GET)
    public List<DeptEntity> findAll() {
        return deptService.findAll();
    }

}

public interface DeptService {

    /**
     * 插入
     * @param deptEntity
     * @return
     */
    boolean addDept(DeptEntity deptEntity);

    /**
     * 根據id查找
     * @param deptNo
     * @return
     */
    DeptEntity findById(Long deptNo);

    /**
     * 查詢全部
     * @return
     */
    List<DeptEntity> findAll();
}

@Service
public class DeptServiceImpl implements DeptService {

    @Autowired
    DeptDao deptDao;
    @Override
    public boolean addDept(DeptEntity deptEntity) {
      return   deptDao.addDept(deptEntity);
    }

    @Override
    public DeptEntity findById(Long deptNo) {
        return  deptDao.findById(deptNo);
    }

    @Override
    public List<DeptEntity> findAll() {
        return deptDao.findAll();
    }
}

@Mapper
public interface DeptDao {

    /**
     * 插入
     * @param deptEntity
     *
     * @return
     */
    boolean addDept(DeptEntity deptEntity);

    /**
     * 根據id查找
     * @param deptNo
     * @return
     */
    DeptEntity findById(Long deptNo);

    /**
     * 查詢全部
     * @return
     */
    List<DeptEntity> findAll();

}

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="com.springcloud.dao.DeptDao">

    <select id="findById" resultType="DeptEntity" parameterType="Long">
       SELECT * FROM  dept WHERE  dept_no = #{deptNo}
    </select>

    <select id="findAll" resultType="DeptEntity">
        SELECT * FROM  dept;
    </select>

    <insert id="addDept">
        INSERT INTO dept(dept_name,db_source) VALUE (#{deptName},DATABASE());
    </insert>

</mapper>

創建入口類

@SpringBootApplication
public class DeptProvider8001App {

    public static void main(String[] args) {
        SpringApplication.run(DeptProvider8001App.class,args);
    }
}

這樣，我們啓動它，就能提供部門的業務功能