《SpringCloud专题03》-微服务架构编码构建-服务提供者
1.微服务cloud整体聚合工程
1.1.父工程步骤
New Project
聚合总父工程名字
Maven选版本
字符编码
注解生效激活
java编译版本选8
File Type过滤
1.2.父工程POM
<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>4.0.0modelVersion>
<groupId>com.itxiongmao.springcloudgroupId>
<artifactId>springcloud2020artifactId>
<version>1.0-SNAPSHOTversion>
<modules>
<module>cloud-provider-payment8001module>
modules>
<packaging>pompackaging>
<properties>
<project.build.sourceEncoding>UTF-8project.build.sourceEncoding>
<maven.compiler.source>1.8maven.compiler.source>
<maven.compiler.target>1.8maven.compiler.target>
<junit.version>4.12junit.version>
<log4j.version>1.2.17log4j.version>
<lombok.version>1.16.18lombok.version>
<mysql.version>5.1.47mysql.version>
<druid.version>1.1.16druid.version>
<spring.boot.version>2.2.2.RELEASEspring.boot.version>
<spring.cloud.version>Hoxton.SR1spring.cloud.version>
<spring.cloud.alibaba.version>2.1.0.RELEASEspring.cloud.alibaba.version>
<mybatis.spring.boot.version>1.3.0mybatis.spring.boot.version>
properties>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.bootgroupId>
<artifactId>spring-boot-dependenciesartifactId>
<version>${spring.boot.version}version>
<type>pomtype>
<scope>importscope>
dependency>
<dependency>
<groupId>org.springframework.cloudgroupId>
<artifactId>spring-cloud-dependenciesartifactId>
<version>${spring.cloud.version}version>
<type>pomtype>
<scope>importscope>
dependency>
<dependency>
<groupId>com.alibaba.cloudgroupId>
<artifactId>spring-cloud-alibaba-dependenciesartifactId>
<version>${spring.cloud.alibaba.version}version>
<type>pomtype>
<scope>importscope>
dependency>
<dependency>
<groupId>mysqlgroupId>
<artifactId>mysql-connector-javaartifactId>
<version>${mysql.version}version>
dependency>
<dependency>
<groupId>com.alibabagroupId>
<artifactId>druidartifactId>
<version>${druid.version}version>
dependency>
<dependency>
<groupId>org.projectlombokgroupId>
<artifactId>lombokartifactId>
dependency>
dependencies>
dependencyManagement>
<build>
<plugins>
<plugin>
<groupId>org.springframework.bootgroupId>
<artifactId>spring-boot-maven-pluginartifactId>
<configuration>
<fork>truefork>
<addResources>trueaddResources>
configuration>
plugin>
plugins>
build>
<repositories>
<repository>
<id>nexus-aliyunid>
<name>Nexus aliyunname>
<url>http://maven.aliyun.com/nexus/content/groups/publicurl>
<releases>
<enabled>trueenabled>
releases>
<snapshots>
<enabled>falseenabled>
snapshots>
repository>
repositories>
project>
maven中跳过单元测试
2.Rest微服务工程搭建
2.1.Cloud-provider-payment8001 微服务提供者Module模块
2.1.1.建module
创建完成后回到父工程查看pom文件变化
2.1.2.改POM
<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>springcloud2020artifactId>
<groupId>com.itxiongmao.springcloudgroupId>
<version>1.0-SNAPSHOTversion>
parent>
<modelVersion>4.0.0modelVersion>
<artifactId>cloud-provider-payment8001artifactId>
<dependencies>
<dependency>
<groupId>org.springframework.bootgroupId>
<artifactId>spring-boot-starter-webartifactId>
dependency>
<dependency>
<groupId>org.springframework.bootgroupId>
<artifactId>spring-boot-starter-actuatorartifactId>
dependency>
<dependency>
<groupId>org.mybatis.spring.bootgroupId>
<artifactId>mybatis-spring-boot-starterartifactId>
<version>2.0.0version>
dependency>
<dependency>
<groupId>com.alibabagroupId>
<artifactId>druid-spring-boot-starterartifactId>
<version>1.1.10version>
dependency>
<dependency>
<groupId>mysqlgroupId>
<artifactId>mysql-connector-javaartifactId>
dependency>
<dependency>
<groupId>org.springframework.bootgroupId>
<artifactId>spring-boot-starter-jdbcartifactId>
dependency>
<dependency>
<groupId>org.springframework.bootgroupId>
<artifactId>spring-boot-starter-testartifactId>
<scope>testscope>
dependency>
dependencies>
project>
2.1.3.主启动
package com.itxiongmao;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
@SpringBootApplication
public class PaymentMain8001 {
public static void main(String[] args) {
SpringApplication.run(PaymentMain8001.class,args);
}
}
2.1.4.写YML
server:
port: 8001
spring:
application:
name: cloud-payment-service
datasource:
type: com.alibaba.druid.pool.DruidDataSource
driver-class-name: org.gjt.mm.mysql.Driver
url: jdbc:mysql://127.0.0.1:3306/db2020_cloud?useUnicode=true&characterEncoding=utf-8&useSSL=false
username: root
password: 123456
mybatis:
mapper-locations: classpath:mapper/*.xml
type-aliases-package: com.itxiongmao.springcloud.entities
2.1.5.测试数据库
-- ----------------------------
-- Table structure for payment
-- ----------------------------
DROP TABLE IF EXISTS `payment`;
CREATE TABLE `payment` (
`id` bigint(20) NOT NULL AUTO_INCREMENT COMMENT '主键',
`serial` varchar(200) DEFAULT NULL COMMENT '支付流水号',
PRIMARY KEY (`id`) USING BTREE
) ENGINE=InnoDB AUTO_INCREMENT=36 DEFAULT CHARSET=utf8 ROW_FORMAT=DYNAMIC COMMENT='支付表';
-- ----------------------------
-- Records of payment
-- ----------------------------
INSERT INTO `payment` VALUES ('31', 'test001');
INSERT INTO `payment` VALUES ('32', 'test002');
INSERT INTO `payment` VALUES ('34', 'test003');
2.1.6.主实体Payment
新建一个module，专门把实体类做一个工程
package com.itxiongmao.springcloud.entities;
import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;
import java.io.Serializable;
/**
* @BelongsProject: springcloud2020
* @BelongsPackage: com.itxiongmao.springcloud.entities
* @CreateTime: 2020-07-07 23:32
* @Description: TODO
*/
@Data
@AllArgsConstructor
@NoArgsConstructor
public class Payment implements Serializable {
private Long id;
private String serial;
}
<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>springcloud2020artifactId>
<groupId>com.itxiongmao.springcloudgroupId>
<version>1.0-SNAPSHOTversion>
parent>
<modelVersion>4.0.0modelVersion>
<artifactId>cloud-api-commonsartifactId>
<dependencies>
<dependency>
<groupId>org.projectlombokgroupId>
<artifactId>lombokartifactId>
<version>${lombok.version}version>
dependency>
dependencies>
project>
2.1.7.Json封装体CommonResult
package com.itxiongmao.springcloud.entities;
import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;
/**
* @BelongsProject: springcloud2020
* @BelongsPackage: com.itxiongmao.springcloud.entities
* @CreateTime: 2020-07-07 23:36
* @Description: TODO
*/
@Data
@AllArgsConstructor
@NoArgsConstructor
public class CommonResult<T> {
private Integer code;
private String message;
private T data;
public CommonResult(Integer code, String message) {
this(code, message, null);
}
}
2.1.8.接口PaymentDao
package com.itxiongmao.dao;
import com.itxiongmao.springcloud.entities.Payment;
import org.apache.ibatis.annotations.Mapper;
import org.apache.ibatis.annotations.Param;
import java.util.List;
/**
* @BelongsProject: springcloud2020
* @BelongsPackage: com.itxiongmao.dao
* @CreateTime: 2020-07-07 23:38
* @Description: TODO
*/
@Mapper
public interface PaymentDao {
/**
* 通过ID查询单条数据
*
* @param id 主键
* @return 实例对象
*/
Payment queryById(Long id);
/**
* 查询指定行数据
*
* @param offset 查询起始位置
* @param limit 查询条数
* @return 对象列表
*/
List<Payment> queryAllByLimit(@Param("offset") int offset, @Param("limit") int limit);
/**
* 通过实体作为筛选条件查询
*
* @param payment 实例对象
* @return 对象列表
*/
List<Payment> queryAll(Payment payment);
/**
* 新增数据
*
* @param payment 实例对象
* @return 影响行数
*/
int insert(Payment payment);
/**
* 修改数据
*
* @param payment 实例对象
* @return 影响行数
*/
int update(Payment payment);
/**
* 通过主键删除数据
*
* @param id 主键
* @return 影响行数
*/
int deleteById(Long id);
}
2.1.9.mybatis的映射文件PaymentDao.xml
<mapper namespace="com.itxiongmao.dao.PaymentDao">
<resultMap type="com.itxiongmao.springcloud.entities.Payment" id="PaymentMap">
<result property="id" column="id" jdbcType="INTEGER"/>
<result property="serial" column="serial" jdbcType="VARCHAR"/>
resultMap>
<select id="queryById" resultMap="PaymentMap" parameterType="Long">
select
id, serial
from payment
where id = #{id}
select>
<select id="queryAllByLimit" resultMap="PaymentMap">
select
id, serial
from payment
limit #{offset}, #{limit}
select>
<select id="queryAll" resultMap="PaymentMap">
select
id, serial
from payment
<where>
<if test="id != null">
and id = #{id}
if>
<if test="serial != null and serial != ''">
and serial = #{serial}
if>
where>
select>
<insert id="insert" keyProperty="id" useGeneratedKeys="true">
insert into payment(serial)
values (#{serial})
insert>
<update id="update">
update payment
<set>
<if test="serial != null and serial != ''">
serial = #{serial},
if>
set>
where id = #{id}
update>
<delete id="deleteById">
delete from payment where id = #{id}
delete>
mapper>
2.1.10.接口PaymentService
package com.itxiongmao.service;
import com.itxiongmao.springcloud.entities.Payment;
import java.util.List;
/**
* @BelongsProject: springcloud2020
* @BelongsPackage: com.itxiongmao.service
* @CreateTime: 2020-07-07 23:48
* @Description: TODO
*/
public interface PaymentService {
/**
* 通过ID查询单条数据
*
* @param id 主键
* @return 实例对象
*/
Payment queryById(Long id);
/**
* 查询多条数据
*
* @param offset 查询起始位置
* @param limit 查询条数
* @return 对象列表
*/
List<Payment> queryAllByLimit(int offset, int limit);
/**
* 新增数据
*
* @param payment 实例对象
* @return 实例对象
*/
Payment insert(Payment payment);
/**
* 修改数据
*
* @param payment 实例对象
* @return 实例对象
*/
Payment update(Payment payment);
/**
* 通过主键删除数据
*
* @param id 主键
* @return 是否成功
*/
boolean deleteById(Long id);
}
2.1.11.接口PaymentService实现类
package com.itxiongmao.service.impl;
import com.itxiongmao.dao.PaymentDao;
import com.itxiongmao.service.PaymentService;
import com.itxiongmao.springcloud.entities.Payment;
import org.springframework.stereotype.Service;
import javax.annotation.Resource;
import java.util.List;
/**
* @BelongsProject: springcloud2020
* @BelongsPackage: com.itxiongmao.service.impl
* @CreateTime: 2020-07-07 23:49
* @Description: TODO
*/
@Service("paymentService")
public class PaymentServiceImpl implements PaymentService {
@Resource
private PaymentDao paymentDao;
/**
* 通过ID查询单条数据
*
* @param id 主键
* @return 实例对象
*/
@Override
public Payment queryById(Long id) {
return this.paymentDao.queryById(id);
}
/**
* 查询多条数据
*
* @param offset 查询起始位置
* @param limit 查询条数
* @return 对象列表
*/
@Override
public List<Payment> queryAllByLimit(int offset, int limit) {
return this.paymentDao.queryAllByLimit(offset, limit);
}
/**
* 新增数据
*
* @param payment 实例对象
* @return 实例对象
*/
@Override
public Payment insert(Payment payment) {
this.paymentDao.insert(payment);
return payment;
}
/**
* 修改数据
*
* @param payment 实例对象
* @return 实例对象
*/
@Override
public Payment update(Payment payment) {
this.paymentDao.update(payment);
return this.queryById(payment.getId());
}
/**
* 通过主键删除数据
*
* @param id 主键
* @return 是否成功
*/
@Override
public boolean deleteById(Long id) {
return this.paymentDao.deleteById(id) > 0;
}
}
2.1.12.controller
package com.itxiongmao.controller;
import com.itxiongmao.service.PaymentService;
import com.itxiongmao.springcloud.entities.CommonResult;
import com.itxiongmao.springcloud.entities.Payment;
import org.springframework.web.bind.annotation.*;
import javax.annotation.Resource;
import java.util.List;
import java.util.concurrent.TimeUnit;
/**
* @BelongsProject: springcloud2020
* @BelongsPackage: com.itxiongmao.controller
* @CreateTime: 2020-07-07 23:50
* @Description: TODO
*/
@RestController
@RequestMapping("payment")
public class PaymentController {
/**
* 服务对象
*/
@Resource
private PaymentService paymentService;
/**
* 通过主键查询单条数据
*
* @param id 主键
* @return 单条数据
*/
@GetMapping("get/{id}")
public CommonResult<Payment> selectOne(@PathVariable("id") Long id) {
Payment payment = this.paymentService.queryById(id);
return new CommonResult<Payment>(200,"select success 8001!",payment);
}
@PostMapping("create")
public CommonResult create(Payment payment) {
Payment insert = this.paymentService.insert(payment);
System.out.println(insert);
System.out.println("1234567890");
return new CommonResult(200,"insert success" ,insert);
}
}
3.启动测试
3.1.测试访问
http://127.0.0.1:8001/payment/get/31
3.2.postman模拟post
3.3.开启Run DashBoard
通过修改idea的workspace.xml的方式快速打开Run Dashboard窗口，开启Run DashBoard
<component name="RunDashboard">
<option name="configurationTypes">
<set>
<option value="SpringBootApplicationConfigurationType" />
set>
option>
<option name="ruleStates">
<list>
<RuleState>
<option name="name" value="ConfigurationTypeDashboardGroupingRule" />
RuleState>
<RuleState>
<option name="name" value="StatusDashboardGroupingRule" />
RuleState>
list>
option>
component>
部分同学可能由于idea版本不同,需要关闭重启
4.热部署Devtools
Adding devtools to your project(添加到你的子工程)
<dependency>
<groupId>org.springframework.bootgroupId>
<artifactId>spring-boot-devtoolsartifactId>
<scope>runtimescope>
<optional>trueoptional>
dependency>
Adding plugin to your pom.xml(添加到你的父工程)
<build>
<plugins>
<plugin>
<groupId>org.springframework.bootgroupId>
<artifactId>spring-boot-maven-pluginartifactId>
<configuration>
<fork>truefork>
<addResources>trueaddResources>
configuration>
plugin>
plugins>
build>
Enabling automatic build
Update the value of
重启idea，测试热部署功能，修改Java代码，SpringBoot项目会重新自动重启！