감성코딩

.gitignore 커밋(commit) 되어 있는 파일 무시(ignore)

tlo — Wed, 28 Jun 2023 20:15:13 +0900

이미 커밋(commit)되어 있는 .classpath, .project 등 설정 파일을 무시(ignore)

.gitignore 파일에 .classpath, .project 등록

# Eclipse Core      
.project

# JDT-specific (Eclipse Java Development Tools)     
.classpath

특정 경로의 파일을 무시

local에서의 변경 사항 없이 변경된 .gitignore 목록 적용 가능

git update-index --skip-worktree test/path/.classpath
git update-index --skip-worktree test/path/.project

[MacOS 개발환경 #24] redis-cluster 설정

tlo — Tue, 3 Jan 2023 19:46:53 +0900

[MacOS 개발환경 #24] redis-cluster 설정

1. redis-cluster 설정

2. 환경

3. Homebrew 설치

4. cluster 설정

5. 노드 실행

6. 결과 화면

1. redis-cluster 설정

2. 환경

MacOS M1 - macOS Ventura 13.1

3. Homebrew 설치

[MacOS 개발환경 #15] redis 설치 - homebrew 활용

redis 설치 - homebrew 활용 (MacOS Apple Silicon) redis 6.2.5 Homebrew 설치 Homebrew 설치 터미널 > 1 brew install redis redis background 실행 1 brew services start redis redis background 중지 1 brew services stop redis redis 실행 1 /opt/hom

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4. 클러스터 구성

redis.conf를 복사 --> redis_7000.conf, redis_7001.conf, redis_7002.conf

4.1 redis.conf 파일 수정

- 각 노드별 conf 파일 수정

ex. port 7000 노드 설정 파일 수정

[redis_7000.conf]

port 7000

pidfile /var/run/redis_7000.pid

dbfilename dump.rdb

cluster-enabled yes

cluster-config-file nodes_7000.conf

cluster-node-timeout 3000

5. 노드 실행

/opt/homebrew/opt/redis/bin/redis-server /Users/user/Documents/my/app/databases/redis_cluster_test/7000/redis_7000.conf

/opt/homebrew/opt/redis/bin/redis-server /Users/user/Documents/my/app/databases/redis_cluster_test/7001/redis_7001.conf

/opt/homebrew/opt/redis/bin/redis-server /Users/user/Documents/my/app/databases/redis_cluster_test/7002/redis_7002.conf

/opt/homebrew/opt/redis/bin/redis-cli --cluster create 127.0.0.1:7000 127.0.0.1:7001 127.0.0.1:7002

6. 결과화면

[MacOS 개발환경 #23] ActiveMQ 설치 - Homebrew 활용

tlo — Tue, 20 Dec 2022 20:19:10 +0900

[MacOS 개발환경 #23] ActiveMQ 설치 - Homebrew 활용

1. ActiveMQ 설치 - Homebrew 활용

2. 환경

3. Homebrew 설치

4. 다운로드 - Homebrew 활용

1. ActiveMQ 설치 - Homebrew 활용

2. 환경

MacOS M1 - macOS Monterey 12.0.1

3. Homebrew 설치

[MacOS 개발환경 #1] Homebrew 설치

맥(MacOS) M1 (Apple Silicon) 개발환경 - Homebrew 설치 Homebrew 설치 > Homebrew 설치 확인 1 2 3 /bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)" bre..

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4. 다운로드 - Homebrew 활용

ActiveMQ 설치

brew install activemq

5. ActiveMQ 실행

/opt/homebrew/opt/activemq/bin/activemq console

- java 11 이상에서 실행 필요

class file version 55.0은 jdk 11로 컴파일한 버전

[Java 실습 #25] 간단한 Http 호출 - HttpURLConnection 활용

tlo — Fri, 12 Aug 2022 19:05:03 +0900

[Java 실습 #25] 간단한 Http 호출 - HttpURLConnection 활용

1. HttpURLConnection을 활용한 간단한 Http 호출 - 문자열 반환

2. 개발환경

2.1. 개발환경

2.2. 라이브러리

3. 구현

3.1. 프로젝트 구조

3.2. 구현 - 소스코드

4. 결과

1. Java의 HttpURLConnection을 활용한 간단한 Http 호출 테스트

2. 개발환경

2.1. 개발환경

MacOS M1 - macOS Monterey 12.0.1

IntelliJ IDEA 2021.2 (Community Edition)

2.2. 라이브러리

JDK 1.8

3. 구현

3.1. 프로젝트 구조

Test.java 파일

3.2. 구현 - 소스코드

[ Test.java ]

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import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
 
public class Test {
    public static void main(String[] args) {
        String result = read("https://naver.com", 5000);
        System.out.println("result: \n" + result);
    }
 
    private static String read(String url, int timeout) {
        try {
            return read(new URL(url), timeout);
        } catch (MalformedURLException e) {
            e.printStackTrace();
            return null;
        }
    }
 
    private static String read(URL url, int timeout) {
        HttpURLConnection urlConnection = null;
        try {
            urlConnection = (HttpURLConnection) url.openConnection();
            if (timeout > 0) {
                urlConnection.setConnectTimeout(timeout);
            }
            urlConnection.connect();
 
            InputStream in = urlConnection.getInputStream();
            ByteArrayOutputStream out = new ByteArrayOutputStream();
 
            byte[] buf = new byte[1024 * 8];
            int length = 0;
            while ((length = in.read(buf)) >= 0) {
                out.write(buf, 0, length);
            }
//            String result = new String(out.toByteArray());
            return out.toString();
        } catch (IOException e) {
            e.printStackTrace();
        } finally {
            if (urlConnection != null) {
                urlConnection.disconnect();
            }
        }
        return null;
    }
}
 

4. 결과

4.1 java 컴파일

javac Test.java

4.2. 테스트 (naver.com 호출)

java Test

CentOS 7 - JDK 다운로드 및 설치 (rpm 버전)

tlo — Mon, 1 Aug 2022 19:53:05 +0900

I 리눅스(Linux) CentOS 7 ─ JDK 다운로드 및 설치 (rpm 버전)

https://www.oracle.com/kr/java/technologies/javase/javase8u211-later-archive-downloads.html

jdk-8u131-linux-x64.rpm

오라클 로그인 > Download 버튼 우클릭 후 링크 복사 > wget 다운로드 실행

wget --header "Cookie: oraclelicense=accept-securebackup-cookie" {복사한 링크}

ex.

wget --header "Cookie: oraclelicense=accept-securebackup-cookie" https://download.oracle.com/otn/java/jdk/8u131-b11/d54c1d3a09564ff266607d096fa80163/jdk-8u131-1inux-x64.rpm

rpm 파일 테스트

rpm -ivh jdk-8u131-linux-x64.rpm --test

rpm 설치

rpm -ivh jdk-8u131-linux-x64.rpm

java 설치 확인

java -version

[Java 실습 #24] 해당 class의 jar 파일 경로 추출

tlo — Fri, 29 Jul 2022 19:21:10 +0900

[Java 실습 #24] 해당 class의 jar 파일 경로 추출

1. class를 가지고 있는 jar 파일의 경로 추출

2. 개발환경

2.1. 개발환경

2.2. 라이브러리

3. 구현

3.1. 프로젝트 구조

3.2. 구현 - 소스코드

4. 결과

1. class를 가지고 있는 jar 파일의 경로 추출

2. 개발환경

2.1. 개발환경

MacOS M1 - macOS Monterey 12.0.1

IntelliJ IDEA 2021.2 (Community Edition)

2.2. 라이브러리

JDK 1.8

3. 구현

3.1. 프로젝트 구조

3.2. 구현 - 소스코드

[pom.xml]

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<?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>io.home.test</groupId>
    <artifactId>test-jar-location</artifactId>
    <version>1.0-SNAPSHOT</version>
 
    <properties>
        <build.jdk.source>8</build.jdk.source>
        <build.jdk.target>8</build.jdk.target>
    </properties>
 
    <build>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>3.6.1</version>
                <configuration>
                    <source>${build.jdk.source}</source>
                    <target>${build.jdk.target}</target>
                </configuration>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-jar-plugin</artifactId>
                <version>3.2.2</version>
                <configuration>
                    <archive>
                        <manifest>
                            <mainClass>io.home.test.Test</mainClass>
                        </manifest>
                    </archive>
                </configuration>
            </plugin>
        </plugins>
    </build>
 
</project>

[Test.java]

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package io.home.test;
 
import java.io.UnsupportedEncodingException;
import java.net.URLDecoder;
 
public class Test {
 
    public static void main(String[] args) {
        System.out.println("path: " + getJarFileName(Test.class));
    }
 
    public static String getJarFileName(Class clazz) {
        try {
            String jarFilePath = "" + clazz.getResource("/" + clazz.getName().replace('.', '/') + ".class");
            int sub = jarFilePath.indexOf("!");
            if (sub < 0) return null;
 
            jarFilePath = jarFilePath.substring("jar:file:".length(), sub);
            jarFilePath = URLDecoder.decode(jarFilePath, "UTF-8");
            jarFilePath = jarFilePath.replace('\\', '/');
            return jarFilePath;
        } catch (UnsupportedEncodingException e) {
            e.printStackTrace();
        }
        return null;
    }
}

4. 결과

mvn clean install

java -jar ./target/test-jar-location-1.0-SNAPSHOT.jar

주의사항

Windows os에서 실행시에는 jar 파일 경로를 못 가져올 것으로 예상

[Java 기초 #5] maven jar - no main manifest attribute

tlo — Thu, 28 Jul 2022 18:24:44 +0900

[Java 기초 #5] maven jar - no main manifest attribute

1. maven jar - no main manifest attribute

2. 개발환경

2.1. 개발환경

2.2. 라이브러리

3. 구현

3.1. 프로젝트 구조

3.2. 소스코드

4. 결과

1. maven jar 만들기 - no main manifest attribute

2. 개발환경

2.1. 개발환경

MacOS M1 - macOS Monterey 12.0.1

IntelliJ IDEA 2021.2 (Community Edition)

2.2. 라이브러리

JDK 1.8

3. 구현

3.1. 프로젝트 구조

3.2. 소스코드

[pom.xml]

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<?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>io.home.test</groupId>
    <artifactId>test-maven-hello</artifactId>
    <version>1.0-SNAPSHOT</version>
 
    <properties>
        <build.jdk.source>8</build.jdk.source>
        <build.jdk.target>8</build.jdk.target>
    </properties>
 
    <build>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>3.6.1</version>
                <configuration>
                    <source>${build.jdk.source}</source>
                    <target>${build.jdk.target}</target>
                </configuration>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-jar-plugin</artifactId>
                <version>3.2.2</version>
                <configuration>
                    <archive>
                        <manifest>
                            <mainClass>io.home.test.Test</mainClass>
                        </manifest>
                    </archive>
                </configuration>
            </plugin>
        </plugins>
    </build>
 
</project>

[Hello.java]

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public class Hello {
    public static void main(String[] args) {
        System.out.println("Hello World!");
    }
}

[Test.java]

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package io.home.test;
 
public class Test {
    public static void main(String[] args) {
        System.out.println("Hello Test World!");
    }
}

4. 결과

maven clean install

실행 결과

no main manifest attribute 문제는 build plugin 추가하여 해결

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<build>
    <plugins>
        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-jar-plugin</artifactId>
            <version>3.2.2</version>
            <configuration>
                <archive>
                    <manifest>
                        <mainClass>io.home.test.Test</mainClass>
                    </manifest>
                </archive>
            </configuration>
        </plugin>
    </plugins>
</build>

[Spring Boot 실습 #15] MySQL 5.7 설정 - HikariCP 설정 (application.properties)

tlo — Mon, 4 Jul 2022 19:27:55 +0900

[Spring Boot 실습 #15] MySQL 5.7 설정 - HikariCP 설정 (application.properties)

1. Spring Boot MySQL 5.7 + HikariCP (application.properties)

2. 개발환경

2.1. 개발환경

3. 실행

3.1. 설정 파일

4. 결과

4.1. 결과화면

1. Spring Boot MySQL 5.7 + HikariCP 설정 (application.properties)

2. 개발환경

2.1. 개발환경

MacOS M1 - macOS Monterey 12.0.1

IntelliJ IDEA 2021.2 (Community Edition)

3. 실행

3.1. 설정 파일

[ application.properties ]

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###### Database Properties - Hikari + MySQL ###########################################
spring.datasource.hikari.driver-class-name=com.mysql.cj.jdbc.Driver
spring.datasource.hikari.jdbc-url=jdbc:mysql://{host}:{port}/{database}?useUnicode=true&characterEncoding=utf8&allowPublicKeyRetrieval=true&useSSL=false&serverTimezone=Asia/Seoul&useLegacyDatetimeCode=false
spring.datasource.hikari.username={username}
spring.datasource.hikari.password={password}
 
# MYSQL 5.7
spring.jpa.properties.hibernate.dialect=org.hibernate.dialect.MySQL5InnoDBDialect
spring.jpa.database.platform=mysql
spring.jpa.properties.hibernate.id.new_generator_mappings=false
spring.jpa.hibernate.ddl-auto=update
 

4. 결과

4.1. 결과화면

[Spring Boot 실습 #14] 백그라운드 실행

tlo — Wed, 22 Jun 2022 18:18:49 +0900

[Spring Boot 실습 #14] 백그라운드 실행

1. Spring Boot 백그라운드 실행

2. 개발환경

2.1. 개발환경

3. 실행

3.1. 실행 명령어

4. 결과

4.1. 결과화면

1. Spring Boot 백그라운드 실행

2. 개발환경

2.1. 개발환경

MacOS M1 - macOS Monterey 12.0.1

IntelliJ IDEA 2021.2 (Community Edition)

3. 실행

3.1. 실행 명령어

nohup java -jar ${JAVA_APP} &

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nohup java -jar /data/app/product-service-0.0.1-SNAPSHOT.jar &

4. 결과

4.1. 결과화면

nohup 파일 생성 확인

[Spring Boot 실습 #13] MyBatis CRUD - H2 Database

tlo — Mon, 13 Jun 2022 19:11:32 +0900

[Spring Boot 실습 #13] MyBatis CRUD - H2 Database

1. Spring Boot Mybatis 설정 및 기본 CRUD (H2 Database)

2. 개발환경

2.1. 개발환경

2.2. 라이브러리

3. 구현

3.1. 프로젝트 구조

3.2. 구현 - 소스코드

4. 결과

4.1. 테이블 생성

4.2. save

4.3. findAll, findById

4.4. update

4.5. delete

1. 임의의 http status code 반환

http 호출로 에러 발생시 정상 범위로 판단하여 임의의 http status code 반환

2. 개발환경

2.1. 개발환경

MacOS M1 - macOS Monterey 12.0.1

IntelliJ IDEA 2021.2 (Community Edition)

2.2. 라이브러리

JDK 11

spring-boot-2.6.6

3. 구현

3.1. 프로젝트 구조

3.2. 구현 - 소스코드

[ pom.xml ]

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<?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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.7.0</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>io.home.test</groupId>
    <artifactId>spring-boot-mybatis-starter</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>spring-boot-mybatis-starter</name>
    <description>Demo project for Spring Boot</description>
    <properties>
        <java.version>11</java.version>
    </properties>
    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-jdbc</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-jpa</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.mybatis.spring.boot</groupId>
            <artifactId>mybatis-spring-boot-starter</artifactId>
            <version>2.2.2</version>
        </dependency>
 
        <dependency>
            <groupId>com.h2database</groupId>
            <artifactId>h2</artifactId>
            <scope>runtime</scope>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
    </dependencies>
 
    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>
 
</project>

[ mybatis-config.xml ]

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<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE configuration
        PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
        "http://mybatis.org/dtd/mybatis-3-config.dtd">
 
<configuration>
    <typeAliases>
        <package name="io.home.test.app.product.domain"/>
    </typeAliases>
</configuration>

[ productMapper.xml ]

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<?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="io.home.test.app.product.mapper.ProductMapper">
 
    <select id="findAll" resultType="io.home.test.app.product.domain.Product">
        select * from TB_PRODUCT;
    </select>
 
    <select id="findById" resultType="io.home.test.app.product.domain.Product">
        select * from TB_PRODUCT where id = #{id};
    </select>
 
    <insert id="save" parameterType="io.home.test.app.product.domain.Product">
        INSERT INTO TB_PRODUCT (
            name,
            description,
            price,
            record_state,
            status,
            created_date,
            updated_date
        )
        VALUES (
            #{name},
            #{description},
            #{price},
            #{recordState},
            #{status},
            #{createdDate},
            #{updatedDate}
        )
    </insert>
 
    <update id="update" parameterType="io.home.test.app.product.domain.Product">
        UPDATE
            TB_PRODUCT
        SET
            <if test="name!=null">name=#{name}</if>
            <if test="description!=null">,description=#{description}</if>
            <if test="price!=null">,price=#{price}</if>
            <if test="recordState!=null">,record_state=#{recordState}</if>
            <if test="status!=null">,status=#{status}</if>
            <if test="createdDate!=null">,created_date=#{createdDate}</if>
            <if test="updatedDate!=null">,updated_date=#{updatedDate}</if>
        WHERE
            id=#{id};
    </update>
 
    <delete id="deleteById">
       delete from TB_PRODUCT where id = #{id};
    </delete>
 
</mapper>

[ init_ddl.sql ] 테이블 생성용 sql

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-- tb_product
CREATE TABLE IF NOT EXISTS `TB_PRODUCT`(
    id              bigint auto_increment primary key           comment 'id',
--  product_token   varchar(36)  not null                       comment 'product token',
    name            varchar(255) not null                       comment 'product name',
    description     varchar(255) null                           comment 'product description',
    status          varchar(30)  not null default 'PREPARED'    comment 'status',
    record_state    varchar(30)  not null default 'ACTIVE'      comment 'record_state',
    price           bigint default 0                            comment 'product price',
    created_date    datetime(6) null                            comment 'created date',
    updated_date    datetime(6) null                            comment 'updated date'
);
 
-- create
-- index tb_product_idx01 on tb_product (product_token);
 
create
index tb_product_idx02 on tb_product (created_date);
 
create
index tb_product_idx03 on tb_product (updated_date);

[ application.properties ]

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server.port=8080
# ===============================
# = SPRING JPA
# ===============================
spring.jpa.show-sql=true
spring.jpa.hibernate.ddl-auto=none
#spring.jpa.generate-ddl=true
#spring.jpa.hibernate.ddl-auto=update
 
# ===============================
# = SPRING H2
# ===============================
spring.h2.console.enabled=true
spring.h2.console.settings.web-allow-others=true
 
# ===============================
# = DATA SOURCE
# ===============================
# Set here configurations for the database connection
spring.datasource.platform=h2
spring.datasource.type=com.zaxxer.hikari.HikariDataSource
spring.datasource.url=jdbc:h2:file:./target/h2db/db/app;DB_CLOSE_DELAY=-1
spring.datasource.username=tester
spring.datasource.password=
 
# Keep the connection alive if idle for a long time (needed in production)
spring.datasource.testWhileIdle=true
spring.datasource.validationQuery=SELECT 1
 
# jndi
#spring.datasource.jndi-name=jdbc/test
 
# ===============================
# = MYBATIS
# ===============================
# MyBatis
# mapper.xml
mybatis.mapper-locations=mappers/**/*.xml
# model camel case
mybatis.configuration.map-underscore-to-camel-case=true
mybatis.configuration.config-location=classpath:mybatis-config.xml

[ io.home.test.app.product.domain.Product.java ] Product 모델

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package io.home.test.app.product.domain;
 
import io.home.test.base.entity.RecordState;
import org.hibernate.annotations.CreationTimestamp;
import org.hibernate.annotations.UpdateTimestamp;
import org.springframework.data.relational.core.mapping.Table;
 
import javax.persistence.*;
import java.math.BigDecimal;
import java.time.ZonedDateTime;
 
@Entity
//@Table(name = "tb_product")
public class Product {
 
    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    private Long id;
    private String name;
    private String description;
    private BigDecimal price;
 
    @CreationTimestamp
    @Column(name = "created_date", updatable = false)
    private ZonedDateTime createdDate = ZonedDateTime.now();
 
    @UpdateTimestamp
    @Column(name = "updated_date", updatable = true)
    private ZonedDateTime updatedDate;
 
    @Enumerated
    @Column(name = "record_state")
    private RecordState recordState = RecordState.ACTIVE;
 
    @Enumerated
    private Status status = Status.PREPARE;
 
    public enum Status {
        PREPARE("prepare"),
        ON_SALE("on sale"),
        OUT_OF_STOCK("out of stock"),
        END_OF_SALE("end of sale");
 
        private final String desc;
 
        Status(String desc) {
            this.desc = desc;
        }
 
        public String getDesc() {
            return desc;
        }
    }
 
    public Product() {
    }
 
    public Product(Long id, String name, BigDecimal price) {
        this.id = id;
        this.name = name;
        this.price = price;
    }
 
    public Long getId() {
        return id;
    }
 
    public void setId(Long id) {
        this.id = id;
    }
 
    public String getName() {
        return name;
    }
 
    public void setName(String name) {
        this.name = name;
    }
 
    public String getDescription() {
        return description;
    }
 
    public void setDescription(String description) {
        this.description = description;
    }
 
    public BigDecimal getPrice() {
        return price;
    }
 
    public void setPrice(BigDecimal price) {
        this.price = price;
    }
 
    public ZonedDateTime getCreatedDate() {
        return createdDate;
    }
 
    public void setCreatedDate(ZonedDateTime createdDate) {
        this.createdDate = createdDate;
    }
 
    public ZonedDateTime getUpdatedDate() {
        return updatedDate;
    }
 
    public void setUpdatedDate(ZonedDateTime updatedDate) {
        this.updatedDate = updatedDate;
    }
 
    public Status getStatus() {
        return status;
    }
 
    public void setStatus(Status status) {
        this.status = status;
    }
 
    public RecordState getRecordState() {
        return recordState;
    }
 
    public void setRecordState(RecordState recordState) {
        this.recordState = recordState;
    }
}

[ io.home.test.app.product.mapper.ProductMapper.java ] mybatis의 productMapper.xml과 연결

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package io.home.test.app.product.mapper;
 
import io.home.test.app.product.domain.Product;
import org.apache.ibatis.annotations.Select;
import org.springframework.stereotype.Repository;
 
import java.util.List;
 
@Repository
public interface ProductMapper {
 
    List<Product> findAll();
 
    Product findById(Long id);
 
    void save(Product product);
 
    void update(Product product);
 
    void deleteById(Long id);
 
//    @Select("SELECT CURRENT_TIMESTAMP result FROM sysibm.sysdummy1")    // db2
    @Select("SELECT CURRENT_TIMESTAMP FROM DUAL")    // H2
    String now() throws Exception;
 
}

[ io.home.test.app.product.service.ProductService.java ]

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package io.home.test.app.product.service;
 
import io.home.test.app.product.domain.Product;
import io.home.test.app.product.mapper.ProductMapper;
import org.springframework.stereotype.Service;
 
import java.util.List;
 
@Service
public class ProductService {
 
    private final ProductMapper productMapper;
 
    public ProductService(ProductMapper productMapper) {
        this.productMapper = productMapper;
    }
 
    public List<Product> findAll() {
        return productMapper.findAll();
    }
 
    public Product findById(Long id) {
        return productMapper.findById(id);
    }
 
    public void save(Product product) {
        productMapper.save(product);
    }
 
    public void update(Product product) {
        productMapper.update(product);
    }
 
    public void deleteById(Long id) {
        productMapper.deleteById(id);
    }
 
    public String now() throws Exception {
        return productMapper.now();
    }
 
}

[ io.home.test.app.product.web.ProductResource.java ]

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package io.home.test.app.product.web;
 
import io.home.test.app.product.domain.Product;
import io.home.test.app.product.service.ProductService;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.*;
 
import java.math.BigDecimal;
import java.time.ZonedDateTime;
import java.util.List;
 
@RequestMapping(value = "/api/products")
@RestController
public class ProductResource {
 
    private final ProductService productService;
 
    public ProductResource(ProductService productService) {
        this.productService = productService;
    }
 
    @GetMapping(value = "")
    public ResponseEntity<List<Product>> findAllProducts() {
        List<Product> products = productService.findAll();
        return ResponseEntity.ok(products);
    }
 
    @GetMapping(value = "/{id}")
    public ResponseEntity<Product> findById(@PathVariable(value = "id") Long id) {
        Product product = productService.findById(id);
        return ResponseEntity.ok(product);
    }
 
    @GetMapping(value = "/test/save")
    public ResponseEntity<?> testSave() {
        Product product = new Product();
        product.setName("test-product");
        product.setPrice(BigDecimal.valueOf(15000L));
        productService.save(product);
        return ResponseEntity.ok("saved");
    }
 
    @GetMapping(value = "/test/delete")
    public ResponseEntity<?> testDelete(@RequestParam(value = "id") long id) {
        productService.deleteById(id);
        return ResponseEntity.ok("deleted");
    }
 
    @GetMapping(value = "/test/update")
    public ResponseEntity<?> testUpdate(@RequestParam(value = "id") long id) {
        Product oldProduct = productService.findById(id);
 
        oldProduct.setName("new Name");
        oldProduct.setDescription("new Description");
        oldProduct.setUpdatedDate(ZonedDateTime.now());
 
        productService.update(oldProduct);
        return ResponseEntity.ok("updated");
    }
 
    @GetMapping(value = "/now")
    public ResponseEntity<?> now() throws Exception {
        String now = productService.now();
        return ResponseEntity.ok(now);
    }
}

[ io.home.test.base.entity.RecordState.java ]

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package io.home.test.base.entity;
 
public enum RecordState {
    ACTIVE,
    UPDATING,
    DELETED
}

[ io.home.test.SpringBootMybatisStarterApplication.java ] @MapperScan 추가

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package io.home.test;
 
import org.mybatis.spring.annotation.MapperScan;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
 
@MapperScan(basePackageClasses = SpringBootMybatisStarterApplication.class)
@SpringBootApplication
public class SpringBootMybatisStarterApplication {
 
    public static void main(String[] args) {
        SpringApplication.run(SpringBootMybatisStarterApplication.class, args);
    }
 
}

4. 결과

4.1. 테이블 생성

H2 console 접근

테이블 생성

4.2. save

save

http://localhost:8080/api/products/test/save

4.3. findAll, findById

findAll

http://localhost:8080/api/products

findById

http://localhost:8080/api/products/{id}

4.4. update

update

http://localhost:8080/api/products/test/update?id={id}

findById

http://localhost:8080/api/products/{id}

4.5. delete