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  • Spring cloud:订单微服务-新增

    环境

    1. spring cloud Edgware.SR6
    2. jdk 7
    3. sts 4.6.0
    4. mysql 5.7

    背景

    搭建订单微服务的环境。

    搭建步骤

    接口层

    package jiangbo.springcloud.controller;
    
    import java.util.List;
    
    import org.springframework.web.bind.annotation.DeleteMapping;
    import org.springframework.web.bind.annotation.GetMapping;
    import org.springframework.web.bind.annotation.PathVariable;
    import org.springframework.web.bind.annotation.PostMapping;
    import org.springframework.web.bind.annotation.RequestBody;
    import org.springframework.web.bind.annotation.RequestMapping;
    import org.springframework.web.bind.annotation.RestController;
    
    import jiangbo.springcloud.entity.OrderInfo;
    import jiangbo.springcloud.service.OrderInfoService;
    
    @RestController
    @RequestMapping("/order")
    public class OrderInfoController {
    
        private final OrderInfoService orderInfoService;
    
        public OrderInfoController(OrderInfoService orderInfoService) {
    
            this.orderInfoService = orderInfoService;
        }
    
        @GetMapping
        public List<OrderInfo> allOrders() {
    
            return orderInfoService.queryAllOrders();
        }
    
        @GetMapping("/{id}")
        public OrderInfo getOrderInfo(@PathVariable long id) {
    
            return orderInfoService.queryOrderInfo(id);
        }
    
        @DeleteMapping("/{id}")
        public int deleteOrderInfo(@PathVariable long id) {
    
            return orderInfoService.deleteOrderInfo(id);
        }
    
        @PostMapping
        public OrderInfo newOrderInfo(@RequestBody OrderInfo orderInfo) {
    
            return orderInfoService.insertOrderInfo(orderInfo);
        }
    }
    

    服务层

    package jiangbo.springcloud.service;
    
    import java.util.List;
    
    import jiangbo.springcloud.entity.OrderInfo;
    
    public interface OrderInfoService {
    
        List<OrderInfo> queryAllOrders();
    
        OrderInfo insertOrderInfo(OrderInfo orderInfo);
    
        OrderInfo queryOrderInfo(long id);
    
        int deleteOrderInfo(long id);
    }
    
    package jiangbo.springcloud.service.impl;
    
    import java.util.List;
    
    import org.springframework.stereotype.Service;
    import org.springframework.transaction.annotation.Transactional;
    
    import jiangbo.springcloud.dao.OrderInfoDao;
    import jiangbo.springcloud.entity.OrderInfo;
    import jiangbo.springcloud.service.OrderInfoService;
    
    @Service
    public class OrderInfoServiceImpl implements OrderInfoService {
    
        private final OrderInfoDao orderInfoDao;
    
        public OrderInfoServiceImpl(OrderInfoDao orderInfoDao) {
    
            this.orderInfoDao = orderInfoDao;
        }
    
        @Override
        public List<OrderInfo> queryAllOrders() {
    
            return orderInfoDao.queryAllOrders();
        }
    
        @Transactional
        @Override
        public OrderInfo insertOrderInfo(OrderInfo orderInfo) {
    
            long id = orderInfoDao.insertOrderInfo(orderInfo);
            return orderInfoDao.queryOrderInfo(id);
        }
    
        @Override
        public OrderInfo queryOrderInfo(long id) {
    
            return orderInfoDao.queryOrderInfo(id);
        }
    
        @Override
        public int deleteOrderInfo(long id) {
    
            return orderInfoDao.deleteOrderInfo(id);
        }
    }
    

    数据访问层

    package jiangbo.springcloud.dao;
    
    import java.util.List;
    
    import jiangbo.springcloud.entity.OrderInfo;
    
    public interface OrderInfoDao {
    
        List<OrderInfo> queryAllOrders();
    
        long insertOrderInfo(OrderInfo orderInfo);
    
        OrderInfo queryOrderInfo(long id);
    
        int deleteOrderInfo(long id);
    }
    
    package jiangbo.springcloud.dao;
    
    import java.util.Date;
    import java.util.List;
    
    import org.springframework.jdbc.core.BeanPropertyRowMapper;
    import org.springframework.jdbc.core.JdbcTemplate;
    import org.springframework.jdbc.core.RowMapper;
    import org.springframework.jdbc.core.namedparam.BeanPropertySqlParameterSource;
    import org.springframework.jdbc.core.simple.SimpleJdbcInsert;
    import org.springframework.stereotype.Repository;
    
    import jiangbo.springcloud.entity.OrderInfo;
    
    @Repository
    public class OrderInfoDaoImpl implements OrderInfoDao {
    
        private static final RowMapper<OrderInfo> ROW_MAPPER = new BeanPropertyRowMapper<>(OrderInfo.class);
    
        private static final String QUERY_ALL_SQL = "select * from order_info";
    
        private static final String QUERY_ORDER_INFO_BY_ID_SQL = QUERY_ALL_SQL + " where id = ?";
    
        private static final String DELETE_ORDER_INFO_BY_ID_SQL = "delete from order_info where id = ?";
    
        private JdbcTemplate jdbcTemplate;
    
        public OrderInfoDaoImpl(JdbcTemplate jdbcTemplate) {
    
            this.jdbcTemplate = jdbcTemplate;
        }
    
        @Override
        public List<OrderInfo> queryAllOrders() {
    
            return jdbcTemplate.query(QUERY_ALL_SQL, ROW_MAPPER);
        }
    
        @Override
        public long insertOrderInfo(OrderInfo orderInfo) {
    
            orderInfo.setUpdateTime(new Date());
            return new SimpleJdbcInsert(jdbcTemplate)
                    // 插入订单表
                    .withTableName("order_info")
                    // 指定主键
                    .usingGeneratedKeyColumns("id")
                    // 更新的列
                    .usingColumns("name", "amount", "update_time")
                    // 参数
                    .executeAndReturnKey(new BeanPropertySqlParameterSource(orderInfo)).longValue();
    
        }
    
        @Override
        public OrderInfo queryOrderInfo(long id) {
    
            return jdbcTemplate.queryForObject(QUERY_ORDER_INFO_BY_ID_SQL, ROW_MAPPER, id);
        }
    
        @Override
        public int deleteOrderInfo(long id) {
    
            return jdbcTemplate.update(DELETE_ORDER_INFO_BY_ID_SQL, id);
        }
    }
    

    验证

    启动服务,使用

    curl -H "Content-Type: application/json" -X POST --data '{"name":"jiangbo4","amount":"8.88"}', http://localhost:4410/order

    进行验证,插入数据库成功,则增删查功能都已实现。

    附录

    pom.xml

    <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>
        <parent>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-parent</artifactId>
            <version>Edgware.SR6</version>
        </parent>
    
        <groupId>jiangbo.springcloud</groupId>
        <artifactId>04spring-cloud-order</artifactId>
        <version>1.0.0</version>
        <packaging>jar</packaging>
    
        <properties>
            <java.version>1.7</java.version>
        </properties>
    
        <dependencies>
    
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-web</artifactId>
            </dependency>
    
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-jdbc</artifactId>
            </dependency>
    
            <dependency>
                <groupId>mysql</groupId>
                <artifactId>mysql-connector-java</artifactId>
                <scope>runtime</scope>
            </dependency>
    
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-test</artifactId>
                <scope>test</scope>
            </dependency>
    
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-devtools</artifactId>
                <scope>provided</scope>
            </dependency>
    
        </dependencies>
    
        <build>
            <plugins>
                <plugin>
                    <groupId>org.springframework.boot</groupId>
                    <artifactId>spring-boot-maven-plugin</artifactId>
                </plugin>
            </plugins>
        </build>
    </project>
    
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  • 原文地址:https://www.cnblogs.com/jiangbo44/p/12698661.html
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