SpringCloud-基础项目构建

4.构建springcloud基础项目结构

    构建完成后的项目结构如图：

　

4.1父项目建立

开发项目，现在基本都用到maven，以及用父子项目，以及公共模块依赖，来构建方便扩展的项目体系；

首先我们建立父项目 wfd360-station，主要是一个pom，管理module，以及管理依赖，规范所有jar包版本等；

我们Springcloud版本 用 Edgware.SR4

Springboot版本 用 1.5.13.RELEASE

修改pom.xml为：

<?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.wfd360.station</groupId>
    <artifactId>wfd360-station</artifactId>
    <version>1.0-SNAPSHOT</version>
    <modules>
        <module>common</module>
        <module>ticket-provider-6001</module>
        <module>ticket-consumer-80</module>
    </modules>
    <packaging>pom</packaging>
    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <maven.compiler.source>1.7</maven.compiler.source>
        <maven.compiler.target>1.7</maven.compiler.target>
        <druid.version>1.1.10</druid.version>
    </properties>

    <dependencyManagement>
        <dependencies>
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-dependencies</artifactId>
                <version>Edgware.SR4</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-dependencies</artifactId>
                <version>1.5.13.RELEASE</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
            <!-- 连接池 -->
            <dependency>
                <groupId>com.alibaba</groupId>
                <artifactId>druid</artifactId>
                <version>${druid.version}</version>
            </dependency>
        </dependencies>
    </dependencyManagement>

</project>

 

 这里引入了 springcloud 以及springboot  包括 druid连接池  以及 属性 规范编译 目标版本，包括连接池版本 编码等信息；

 4.2公共模块搭建

 新建module公共模块项目 common，主要是放一些其他项目公用的东西，比如实体类，工具类等等；

 pom.xml 加下 jpa和 mysql驱动包依赖

<?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>wfd360-station</artifactId>
        <groupId>com.wfd360.station</groupId>
        <version>1.0-SNAPSHOT</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>

    <artifactId>common</artifactId>
    <packaging>jar</packaging>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-jpa</artifactId>
        </dependency>
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
        </dependency>
    </dependencies>

</project>

我们新建Ticket实体

package com.wfd360.model;

import javax.persistence.*;
import java.io.Serializable;
/**
 * @author 姿势帝-博客园
 * @address https://www.cnblogs.com/newAndHui/
 * @WeChat 851298348
 * @create 07/12 9:13
 * @description
 */
@Entity
@Table(name="t_ticket")
public class Ticket implements Serializable {
    /**
     *序列号b vmvh
     */
    private static final long serialVersionUID = 1L;
    @Id
    @GeneratedValue
    private Integer id;
    /**
     * 出发车站
     */
    @Column
    private String startStation;
    /**
     * 到达车站
     */
    @Column
    private String stopStation;
    /**
     * 票价
     */
    @Column
    private Integer price;

    public Integer getId() {
        return id;
    }

    public void setId(Integer id) {
        this.id = id;
    }

    public String getStartStation() {
        return startStation;
    }

    public void setStartStation(String startStation) {
        this.startStation = startStation;
    }

    public String getStopStation() {
        return stopStation;
    }

    public void setStopStation(String stopStation) {
        this.stopStation = stopStation;
    }

    public Integer getPrice() {
        return price;
    }

    public void setPrice(Integer price) {
        this.price = price;
    }
}

包括映射

当然我们数据库里也提前建一个db_station数据库；

4.3ticket-provider-6001服务提供者项目建立

 我们新建一个服务器提供者module子模块，类似前面建的common公共模块，名称是 ticket-provider-6001

 pom.xml为：

<?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>wfd360-station</artifactId>
        <groupId>com.wfd360.station</groupId>
        <version>1.0-SNAPSHOT</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>

    <artifactId>ticket-provider-6001</artifactId>
    <dependencies>
        <dependency>
            <groupId>com.wfd360.station</groupId>
            <artifactId>common</artifactId>
            <version>${project.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-jpa</artifactId>
        </dependency>
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-tomcat</artifactId>
        </dependency>
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>druid</artifactId>
        </dependency>
        <!-- 修改后立即生效，热部署 -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>springloaded</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-devtools</artifactId>
        </dependency>
    </dependencies>

</project>

 该pom.xml中加common项目依赖，以及 springboot的 web jpa  驱动包 tomcat 连接池 配置 包括自动热部署配置。

application.yml配置：

server:
  port: 6001
  context-path: /

# 数据源配置
spring:
  datasource:
    type: com.alibaba.druid.pool.DruidDataSource
    driver-class-name: com.mysql.jdbc.Driver
    url: jdbc:mysql://localhost:3306/db_station
    username: root
    password: admin
  jpa:
    hibernate:
      ddl-auto: update
    show-sql: true
  thymeleaf:
    cache: false

 注意：空格

TicketRepository接口：

package com.wfd360.repository;

import com.wfd360.model.Ticket;
import org.springframework.data.jpa.repository.JpaRepository;
import org.springframework.data.jpa.repository.JpaSpecificationExecutor;
import org.springframework.stereotype.Repository;

/**
 * Created by 姿势帝-博客园 on 2020/6/25.
 * 欢迎添加笔者wx(851298348)共同探讨、学习！
 */
@Repository
public interface TicketRepository  extends
        JpaRepository<Ticket, Integer>,JpaSpecificationExecutor<Ticket> {
}

TicketService接口：

package com.wfd360.service;

import com.wfd360.model.Ticket;

import java.util.List;

/**
 * Created by 姿势帝-博客园 on 2020/6/25.
 * 欢迎添加笔者wx(851298348)共同探讨、学习！
 */

public interface TicketService {
    /**
     * 添加或者修改车票信息
     *
     * @param ticket
     */
    void save(Ticket ticket);

    /**
     * 根据id查找车票信息
     *
     * @param id
     * @return
     */
    Ticket findById(Integer id);

    /**
     * 查询车票信息
     *
     * @return
     */
    List<Ticket> list();

    /**
     * 根据id删除车票信息
     *
     * @param id
     */
    void delete(Integer id);
}

TicketServiceImpl实现类：

package com.wfd360.service.impl;

import com.wfd360.model.Ticket;
import com.wfd360.repository.TicketRepository;
import com.wfd360.service.TicketService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.util.List;

/**
 * Created by 姿势帝-博客园 on 2020/6/25.
 * 欢迎添加笔者wx(851298348)共同探讨、学习！
 */
@Service
public class TicketServiceImpl implements TicketService {
    @Autowired
    private TicketRepository ticketRepository;

    @Override
    public void save(Ticket ticket) {
        ticketRepository.save(ticket);
    }

    @Override
    public Ticket findById(Integer id) {
        return ticketRepository.findOne(id);
    }

    @Override
    public List<Ticket> list() {
        return ticketRepository.findAll();
    }

    @Override
    public void delete(Integer id) {
        ticketRepository.delete(id);
    }
}

 TicketProviderController类：

package com.wfd360.controller;

import com.wfd360.model.Ticket;
import com.wfd360.service.TicketService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.*;

import java.util.List;

/**
 * Created by 姿势帝-博客园 on 2020/3/25.
 * 欢迎添加笔者wx(851298348)共同探讨、学习！
 */
@Controller
@RequestMapping("/ticket")
public class TicketController {
    @Autowired
    private TicketService ticketService;
    /**
     * 添加或者修改车票信息
     * @param ticket
     * @return
     */
    @PostMapping(value="/save")
    @ResponseBody
    public boolean save(Ticket ticket){
        try{
            ticketService.save(ticket);
            return true;
        }catch(Exception e){
            return false;
        }
    }

    /**
     * 查询车票信息
     * @return
     */
    @GetMapping(value="/list")
    @ResponseBody
    public List<Ticket> list(){
        List<Ticket> list = ticketService.list();
        Ticket ticket = new Ticket();
        ticket.setStartStation("1001服务提供(代码添加)");
        list.add(ticket);
        return list;
    }

    /**
     * 根据id查询车票信息
     * @return
     */
    @GetMapping(value="/get/{id}")
    @ResponseBody
    public Ticket get(@PathVariable("id") Integer id){
        return ticketService.findById(id);
    }

    /**
     * 根据id删除车票信息
     * @return
     */
    @GetMapping(value="/delete/{id}")
    @ResponseBody
    public boolean delete(@PathVariable("id") Integer id){
        try{
            ticketService.delete(id);
            return true;
        }catch(Exception e){
            return false;
        }
    }
}

启动类TicketProviderApplication_6001：

package com.wfd360;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

/**
 * Created by 姿势帝-博客园 on 2020/6/25.
 * 欢迎添加笔者wx(851298348)共同探讨、学习！
 */
@SpringBootApplication
public class TicketProviderApplication_6001 {
    /**
     * @param args
     */
    public static void main(String[] args) {
        SpringApplication.run(TicketProviderApplication_6001.class, args);
    }
}

我们运行启动类，自动生成t_ticket表；

我们加点数据，方便测试：

 

浏览器请求：http://localhost:6001/ticket/list

 

 然后添加修改的话 我们借用下 postman插件（请自行测试）；

springCloud课程与代码下载:https://www.cnblogs.com/newAndHui/p/13210228.html