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Merge branch 'master' of https://github.com/haerong22/Study

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haerong22
2021-09-01 17:44:43 +09:00
parent 58d328cb59 db7f32fc2f
commit abf70e98f9
21 changed files with 995 additions and 0 deletions
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39
spring-data-jpa/.gitignore vendored Normal file
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HELP.md
.gradle
build/
!gradle/wrapper/gradle-wrapper.jar
!**/src/main/**/build/
!**/src/test/**/build/
### STS ###
.apt_generated
.classpath
.factorypath
.project
.settings
.springBeans
.sts4-cache
bin/
!**/src/main/**/bin/
!**/src/test/**/bin/
### IntelliJ IDEA ###
.idea
*.iws
*.iml
*.ipr
out/
!**/src/main/**/out/
!**/src/test/**/out/
### NetBeans ###
/nbproject/private/
/nbbuild/
/dist/
/nbdist/
/.nb-gradle/
### VS Code ###
.vscode/
**.db

34
spring-data-jpa/build.gradle Normal file
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plugins {
id 'org.springframework.boot' version '2.5.4'
id 'io.spring.dependency-management' version '1.0.11.RELEASE'
id 'java'
}
group = 'com.example'
version = '0.0.1-SNAPSHOT'
sourceCompatibility = '11'
configurations {
compileOnly {
extendsFrom annotationProcessor
}
}
repositories {
mavenCentral()
}
dependencies {
implementation 'org.springframework.boot:spring-boot-starter-data-jpa'
implementation 'org.springframework.boot:spring-boot-starter-web'
implementation 'com.github.gavlyukovskiy:p6spy-spring-boot-starter:1.5.7'
compileOnly 'org.projectlombok:lombok'
runtimeOnly 'com.h2database:h2'
annotationProcessor 'org.projectlombok:lombok'
testImplementation 'org.springframework.boot:spring-boot-starter-test'
}
test {
useJUnitPlatform()
}

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spring-data-jpa/gradle/wrapper/gradle-wrapper.jar vendored Normal file
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spring-data-jpa/gradle/wrapper/gradle-wrapper.properties vendored Normal file
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distributionBase=GRADLE_USER_HOME
distributionPath=wrapper/dists
distributionUrl=https\://services.gradle.org/distributions/gradle-7.1.1-bin.zip
zipStoreBase=GRADLE_USER_HOME
zipStorePath=wrapper/dists

184
spring-data-jpa/gradlew vendored Normal file
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#!/usr/bin/env sh
#
# Copyright 2015 the original author or authors.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# https://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
##############################################################################
##
## Gradle start up script for UN*X
##
##############################################################################
# Attempt to set APP_HOME
# Resolve links: $0 may be a link
PRG="$0"
# Need this for relative symlinks.
while [ -h "$PRG" ]; do
ls=$(ls -ld "$PRG")
link=$(expr "$ls" : '.*-> \(.*\)$')
if expr "$link" : '/.*' >/dev/null; then
PRG="$link"
else
PRG=$(dirname "$PRG")"/$link"
fi
done
SAVED="$(pwd)"
cd "$(dirname \"$PRG\")/" >/dev/null
APP_HOME="$(pwd -P)"
cd "$SAVED" >/dev/null
APP_NAME="Gradle"
APP_BASE_NAME=$(basename "$0")
# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
# Use the maximum available, or set MAX_FD != -1 to use that value.
MAX_FD="maximum"
warn() {
echo "$*"
}
die() {
echo
echo "$*"
echo
exit 1
}
# OS specific support (must be 'true' or 'false').
cygwin=false
msys=false
darwin=false
nonstop=false
case "$(uname)" in
CYGWIN*)
cygwin=true
;;
Darwin*)
darwin=true
;;
MSYS* | MINGW*)
msys=true
;;
NONSTOP*)
nonstop=true
;;
esac
CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
# Determine the Java command to use to start the JVM.
if [ -n "$JAVA_HOME" ]; then
if [ -x "$JAVA_HOME/jre/sh/java" ]; then
# IBM's JDK on AIX uses strange locations for the executables
JAVACMD="$JAVA_HOME/jre/sh/java"
else
JAVACMD="$JAVA_HOME/bin/java"
fi
if [ ! -x "$JAVACMD" ]; then
die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
Please set the JAVA_HOME variable in your environment to match the
location of your Java installation."
fi
else
JAVACMD="java"
which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
Please set the JAVA_HOME variable in your environment to match the
location of your Java installation."
fi
# Increase the maximum file descriptors if we can.
if [ "$cygwin" = "false" -a "$darwin" = "false" -a "$nonstop" = "false" ]; then
MAX_FD_LIMIT=$(ulimit -H -n)
if [ $? -eq 0 ]; then
if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ]; then
MAX_FD="$MAX_FD_LIMIT"
fi
ulimit -n $MAX_FD
if [ $? -ne 0 ]; then
warn "Could not set maximum file descriptor limit: $MAX_FD"
fi
else
warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
fi
fi
# For Darwin, add options to specify how the application appears in the dock
if $darwin; then
GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
fi
# For Cygwin or MSYS, switch paths to Windows format before running java
if [ "$cygwin" = "true" -o "$msys" = "true" ]; then
APP_HOME=$(cygpath --path --mixed "$APP_HOME")
CLASSPATH=$(cygpath --path --mixed "$CLASSPATH")
JAVACMD=$(cygpath --unix "$JAVACMD")
# We build the pattern for arguments to be converted via cygpath
ROOTDIRSRAW=$(find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null)
SEP=""
for dir in $ROOTDIRSRAW; do
ROOTDIRS="$ROOTDIRS$SEP$dir"
SEP="|"
done
OURCYGPATTERN="(^($ROOTDIRS))"
# Add a user-defined pattern to the cygpath arguments
if [ "$GRADLE_CYGPATTERN" != "" ]; then
OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
fi
# Now convert the arguments - kludge to limit ourselves to /bin/sh
i=0
for arg in "$@"; do
CHECK=$(echo "$arg" | egrep -c "$OURCYGPATTERN" -)
CHECK2=$(echo "$arg" | egrep -c "^-") ### Determine if an option
if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ]; then ### Added a condition
eval $(echo args$i)=$(cygpath --path --ignore --mixed "$arg")
else
eval $(echo args$i)="\"$arg\""
fi
i=$(expr $i + 1)
done
case $i in
0) set -- ;;
1) set -- "$args0" ;;
2) set -- "$args0" "$args1" ;;
3) set -- "$args0" "$args1" "$args2" ;;
4) set -- "$args0" "$args1" "$args2" "$args3" ;;
5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
esac
fi
# Escape application args
save() {
for i; do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/"; done
echo " "
}
APP_ARGS=$(save "$@")
# Collect all arguments for the java command, following the shell quoting and substitution rules
eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS"
exec "$JAVACMD" "$@"

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@rem
@rem Copyright 2015 the original author or authors.
@rem
@rem Licensed under the Apache License, Version 2.0 (the "License");
@rem you may not use this file except in compliance with the License.
@rem You may obtain a copy of the License at
@rem
@rem https://www.apache.org/licenses/LICENSE-2.0
@rem
@rem Unless required by applicable law or agreed to in writing, software
@rem distributed under the License is distributed on an "AS IS" BASIS,
@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
@rem See the License for the specific language governing permissions and
@rem limitations under the License.
@rem
@if "%DEBUG%" == "" @echo off
@rem ##########################################################################
@rem
@rem Gradle startup script for Windows
@rem
@rem ##########################################################################
@rem Set local scope for the variables with windows NT shell
if "%OS%"=="Windows_NT" setlocal
set DIRNAME=%~dp0
if "%DIRNAME%" == "" set DIRNAME=.
set APP_BASE_NAME=%~n0
set APP_HOME=%DIRNAME%
@rem Resolve any "." and ".." in APP_HOME to make it shorter.
for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi
@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m"
@rem Find java.exe
if defined JAVA_HOME goto findJavaFromJavaHome
set JAVA_EXE=java.exe
%JAVA_EXE% -version >NUL 2>&1
if "%ERRORLEVEL%" == "0" goto execute
echo.
echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
echo.
echo Please set the JAVA_HOME variable in your environment to match the
echo location of your Java installation.
goto fail
:findJavaFromJavaHome
set JAVA_HOME=%JAVA_HOME:"=%
set JAVA_EXE=%JAVA_HOME%/bin/java.exe
if exist "%JAVA_EXE%" goto execute
echo.
echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
echo.
echo Please set the JAVA_HOME variable in your environment to match the
echo location of your Java installation.
goto fail
:execute
@rem Setup the command line
set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
@rem Execute Gradle
"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %*
:end
@rem End local scope for the variables with windows NT shell
if "%ERRORLEVEL%"=="0" goto mainEnd
:fail
rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
rem the _cmd.exe /c_ return code!
if not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
exit /b 1
:mainEnd
if "%OS%"=="Windows_NT" endlocal
:omega

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spring-data-jpa/settings.gradle Normal file
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rootProject.name = 'spring-data-jpa'

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spring-data-jpa/src/main/java/com/example/springdatajpa/SpringDataJpaApplication.java Normal file
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package com.example.springdatajpa;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
@SpringBootApplication
public class SpringDataJpaApplication {
public static void main(String[] args) {
SpringApplication.run(SpringDataJpaApplication.class, args);
}
}

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spring-data-jpa/src/main/java/com/example/springdatajpa/controller/HelloController.java Normal file
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package com.example.springdatajpa.controller;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;
@RestController
public class HelloController {
@GetMapping("/hello")
public String hello() {
return "hello";
}
}

13
spring-data-jpa/src/main/java/com/example/springdatajpa/dto/MemberDto.java Normal file
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package com.example.springdatajpa.dto;
import lombok.AllArgsConstructor;
import lombok.Data;
@Data
@AllArgsConstructor
public class MemberDto {
private Long id;
private String username;
private String teamName;
}

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spring-data-jpa/src/main/java/com/example/springdatajpa/entity/Member.java Normal file
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package com.example.springdatajpa.entity;
import lombok.*;
import javax.persistence.*;
@Entity
@Getter @Setter
@NoArgsConstructor(access = AccessLevel.PROTECTED)
@ToString(of = {"id", "username", "age"})
@NamedQuery(
name="Member.findByUsername",
query="select m from Member m where m.username = :username"
)
public class Member {
@Id @GeneratedValue
@Column(name = "member_id")
private Long id;
private String username;
private int age;
@ManyToOne(fetch = FetchType.LAZY)
@JoinColumn(name = "team_id")
private Team team;
public Member(String username) {
this.username = username;
}
public Member(String username, int age, Team team) {
this.username = username;
this.age = age;
if (team != null) {
changeTeam(team);
}
}
public Member(String username, int age) {
this.username = username;
this.age = age;
}
public void changeTeam(Team team) {
this.team = team;
team.getMembers().add(this);
}
}

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spring-data-jpa/src/main/java/com/example/springdatajpa/entity/Team.java Normal file
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package com.example.springdatajpa.entity;
import lombok.*;
import javax.persistence.*;
import java.util.ArrayList;
import java.util.List;
@Entity
@Getter @Setter
@NoArgsConstructor(access = AccessLevel.PROTECTED)
@ToString(of = {"id", "name"})
public class Team {
@Id @GeneratedValue
@Column(name = "team_id")
private Long id;
private String name;
@OneToMany(mappedBy = "team")
private List<Member> members = new ArrayList<>();
public Team(String name) {
this.name = name;
}
}

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spring-data-jpa/src/main/java/com/example/springdatajpa/repository/MemberJpaRepository.java Normal file
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package com.example.springdatajpa.repository;
import com.example.springdatajpa.entity.Member;
import org.springframework.stereotype.Repository;
import javax.persistence.EntityManager;
import javax.persistence.PersistenceContext;
import java.util.List;
import java.util.Optional;
@Repository
public class MemberJpaRepository {
@PersistenceContext
private EntityManager em;
public Member save(Member member) {
em.persist(member);
return member;
}
public void delete(Member member) {
em.remove(member);
}
public List<Member> findAll() {
return em.createQuery("select m from Member m", Member.class)
.getResultList();
}
public Optional<Member> findById(Long id) {
Member member = em.find(Member.class, id);
return Optional.ofNullable(member);
}
public long count() {
return em.createQuery("select count(m) from Member m", Long.class)
.getSingleResult();
}
public Member find(Long id) {
return em.find(Member.class, id);
}
public List<Member> findByUsernameAndAgeGreaterThan(String username, int age) {
return em.createQuery("select m from Member m where m.username = :username and m.age > :age", Member.class)
.setParameter("username", username)
.setParameter("age", age)
.getResultList();
}
public List<Member> findByUsername(String username) {
return em.createNamedQuery("Member.findByUsername", Member.class)
.setParameter("username", username)
.getResultList();
}
public List<Member> findByPage(int age, int offset, int limit) {
return em.createQuery("select m from Member m where m.age = :age order by m.username desc", Member.class)
.setParameter("age", age)
.setFirstResult(offset)
.setMaxResults(limit)
.getResultList();
}
public long totalCount(int age) {
return em.createQuery("select count(m) from Member m where m.age = :age", Long.class)
.setParameter("age", age)
.getSingleResult();
}
}

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spring-data-jpa/src/main/java/com/example/springdatajpa/repository/MemberRepository.java Normal file
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package com.example.springdatajpa.repository;
import com.example.springdatajpa.dto.MemberDto;
import com.example.springdatajpa.entity.Member;
import org.springframework.data.jpa.repository.JpaRepository;
import org.springframework.data.jpa.repository.Query;
import org.springframework.data.repository.query.Param;
import java.util.Collection;
import java.util.List;
import java.util.Optional;
public interface MemberRepository extends JpaRepository<Member, Long> {
List<Member> findByUsernameAndAgeGreaterThan(String username, int age);
@Query(name = "Member.findByUsername") // named query 가 있는지 먼저 찾고(domain.methodName) -> query creation
List<Member> findByUsername(@Param("username") String username);
@Query("select m from Member m where m.username = :username and m.age = :age")
List<Member> findMember(@Param("username") String username, @Param("age") int age);
@Query("select m.username from Member m")
List<String> findUsernameList();
@Query("select new com.example.springdatajpa.dto.MemberDto(m.id, m.username, t.name) from Member m join m.team t")
List<MemberDto> findMemberDto();
@Query("select m from Member m where m.username in :names")
List<Member> findByNames(@Param("names") Collection<String> names);
List<Member> findListByUsername(String username); // 컬렉션
Member findMemberByUsername(String username); // 단건
Optional<Member> findOptionalByUsername(String username); // Optional
}

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spring-data-jpa/src/main/java/com/example/springdatajpa/repository/TeamJpaRepository.java Normal file
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package com.example.springdatajpa.repository;
import com.example.springdatajpa.entity.Team;
import org.springframework.stereotype.Repository;
import javax.persistence.EntityManager;
import javax.persistence.PersistenceContext;
import java.util.List;
import java.util.Optional;
@Repository
public class TeamJpaRepository {
@PersistenceContext
private EntityManager em;
public Team save(Team team) {
em.persist(team);
return team;
}
public void delete(Team team) {
em.remove(team);
}
public List<Team> findAll() {
return em.createQuery("select t from Team t", Team.class)
.getResultList();
}
public Optional<Team> findById(Long id) {
Team team = em.find(Team.class, id);
return Optional.ofNullable(team);
}
public long count() {
return em.createQuery("select count(t) from Team t", Long.class)
.getSingleResult();
}
}

7
spring-data-jpa/src/main/java/com/example/springdatajpa/repository/TeamRepository.java Normal file
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package com.example.springdatajpa.repository;
import com.example.springdatajpa.entity.Team;
import org.springframework.data.jpa.repository.JpaRepository;
public interface TeamRepository extends JpaRepository<Team, Long> {
}

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spring-data-jpa/src/main/resources/application.yml Normal file
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spring:
datasource:
url: jdbc:h2:tcp://localhost/~/Desktop/study/Study/spring-data-jpa/db
username: sa
password:
driver-class-name: org.h2.Driver
jpa:
hibernate:
ddl-auto: create
properties:
hibernate:
# show_sql: true
format_sql: true
logging.level:
org.hibernate.SQL: debug
# org.hibernate.type: trace

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spring-data-jpa/src/test/java/com/example/springdatajpa/SpringDataJpaApplicationTests.java Normal file
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package com.example.springdatajpa;
import org.junit.jupiter.api.Test;
import org.springframework.boot.test.context.SpringBootTest;
@SpringBootTest
class SpringDataJpaApplicationTests {
@Test
void contextLoads() {
}
}

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spring-data-jpa/src/test/java/com/example/springdatajpa/entity/MemberTest.java Normal file
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package com.example.springdatajpa.entity;
import org.junit.jupiter.api.Test;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.test.annotation.Rollback;
import org.springframework.transaction.annotation.Transactional;
import javax.persistence.EntityManager;
import javax.persistence.PersistenceContext;
import java.util.List;
import static org.junit.jupiter.api.Assertions.*;
@SpringBootTest
@Transactional
@Rollback(value = false)
class MemberTest {
@PersistenceContext
EntityManager em;
@Test
void testEntity() {
Team teamA = new Team("teamA");
Team teamB = new Team("teamB");
em.persist(teamA);
em.persist(teamB);
Member member1 = new Member("member1", 10, teamA);
Member member2 = new Member("member2", 10, teamA);
Member member3 = new Member("member3", 10, teamB);
Member member4 = new Member("member4", 10, teamB);
em.persist(member1);
em.persist(member2);
em.persist(member3);
em.persist(member4);
// 초기화
em.flush(); // 영속성 컨텍스트 -> DB
em.clear(); // 영속성 컨텍스트 캐시 삭제
// 확인
List<Member> members = em.createQuery("select m from Member m", Member.class)
.getResultList();
for (Member member : members) {
System.out.println("member = " + member);
System.out.println("member.getTeam() = " + member.getTeam());
}
}
}

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spring-data-jpa/src/test/java/com/example/springdatajpa/repository/MemberJpaRepositoryTest.java Normal file
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package com.example.springdatajpa.repository;
import com.example.springdatajpa.entity.Member;
import org.junit.jupiter.api.Test;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.test.annotation.Rollback;
import org.springframework.transaction.annotation.Transactional;
import java.util.List;
import static org.junit.jupiter.api.Assertions.*;
@SpringBootTest
@Transactional
@Rollback(value = false) // 롤백 false
class MemberJpaRepositoryTest {
@Autowired MemberJpaRepository memberJpaRepository;
@Test
void testMember() {
Member member = new Member("memberA");
Member savedMember = memberJpaRepository.save(member);
Member findMember = memberJpaRepository.find(savedMember.getId());
assertEquals(findMember.getId(), member.getId());
assertEquals(findMember.getUsername(), member.getUsername());
assertEquals(findMember, member); // findMember == member : 같은 트랜잭션 안에서는 영속성 컨텍스트 동일성 보장
}
@Test
void basicCRUD() {
Member member1 = new Member("member1");
Member member2 = new Member("member2");
memberJpaRepository.save(member1);
memberJpaRepository.save(member2);
// 단건 조회 검증
Member findMember1 = memberJpaRepository.findById(member1.getId()).get();
Member findMember2 = memberJpaRepository.findById(member2.getId()).get();
assertEquals(findMember1, member1);
assertEquals(findMember2, member2);
// 리스트 조회 검증
List<Member> all = memberJpaRepository.findAll();
assertEquals(2, all.size());
// 카운트 검증
long count = memberJpaRepository.count();
assertEquals(2, count);
// 삭제 검증
memberJpaRepository.delete(member1);
memberJpaRepository.delete(member2);
long deleteCount = memberJpaRepository.count();
assertEquals(0, deleteCount);
}
@Test
void findByUsernameAndAgeGreaterThen() {
Member m1 = new Member("aaa", 10);
Member m2 = new Member("aaa", 20);
memberJpaRepository.save(m1);
memberJpaRepository.save(m2);
List<Member> result = memberJpaRepository.findByUsernameAndAgeGreaterThan("aaa", 15);
assertEquals("aaa", result.get(0).getUsername());
assertEquals(20, result.get(0).getAge());
assertEquals(1, result.size());
}
@Test
void testNamedQuery() {
Member m1 = new Member("aaa", 10);
Member m2 = new Member("bbb", 20);
memberJpaRepository.save(m1);
memberJpaRepository.save(m2);
List<Member> result = memberJpaRepository.findByUsername("aaa");
assertEquals(m1, result.get(0));
}
@Test
void paging() {
// given
memberJpaRepository.save(new Member("member1", 10));
memberJpaRepository.save(new Member("member2", 10));
memberJpaRepository.save(new Member("member3", 10));
memberJpaRepository.save(new Member("member4", 10));
memberJpaRepository.save(new Member("member5", 10));
int age = 10;
int offset = 0;
int limit = 3;
// when
List<Member> members = memberJpaRepository.findByPage(age, offset, limit);
long totalCount = memberJpaRepository.totalCount(age);
// then
assertEquals(3, members.size());
assertEquals(5, totalCount);
}
}

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spring-data-jpa/src/test/java/com/example/springdatajpa/repository/MemberRepositoryTest.java Normal file
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package com.example.springdatajpa.repository;
import com.example.springdatajpa.dto.MemberDto;
import com.example.springdatajpa.entity.Member;
import com.example.springdatajpa.entity.Team;
import org.junit.jupiter.api.Test;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.dao.IncorrectResultSizeDataAccessException;
import org.springframework.test.annotation.Rollback;
import org.springframework.transaction.annotation.Transactional;
import java.util.Arrays;
import java.util.List;
import java.util.Optional;
import static org.junit.jupiter.api.Assertions.*;
@SpringBootTest
@Transactional
@Rollback(value = false)
public class MemberRepositoryTest {
@Autowired
MemberRepository memberRepository;
@Autowired
TeamRepository teamRepository;
@Test
void testMember() {
Member member = new Member("memberA");
Member savedMember = memberRepository.save(member);
Member findMember = memberRepository.findById(savedMember.getId()).get();
assertEquals(findMember.getId(), member.getId());
assertEquals(findMember.getUsername(), member.getUsername());
assertEquals(findMember, member); // findMember == member : 같은 트랜잭션 안에서는 영속성 컨텍스트 동일성 보장
}
@Test
void basicCRUD() {
Member member1 = new Member("member1");
Member member2 = new Member("member2");
memberRepository.save(member1);
memberRepository.save(member2);
// 단건 조회 검증
Member findMember1 = memberRepository.findById(member1.getId()).get();
Member findMember2 = memberRepository.findById(member2.getId()).get();
assertEquals(findMember1, member1);
assertEquals(findMember2, member2);
// 리스트 조회 검증
List<Member> all = memberRepository.findAll();
assertEquals(2, all.size());
// 카운트 검증
long count = memberRepository.count();
assertEquals(2, count);
// 삭제 검증
memberRepository.delete(member1);
memberRepository.delete(member2);
long deleteCount = memberRepository.count();
assertEquals(0, deleteCount);
}
@Test
void findByUsernameAndAgeGreaterThen() {
Member m1 = new Member("aaa", 10);
Member m2 = new Member("aaa", 20);
memberRepository.save(m1);
memberRepository.save(m2);
List<Member> result = memberRepository.findByUsernameAndAgeGreaterThan("aaa", 15);
assertEquals("aaa", result.get(0).getUsername());
assertEquals(20, result.get(0).getAge());
assertEquals(1, result.size());
}
@Test
public void testNamedQuery() {
Member m1 = new Member("aaa", 10);
Member m2 = new Member("bbb", 20);
memberRepository.save(m1);
memberRepository.save(m2);
List<Member> result = memberRepository.findByUsername("aaa");
assertEquals(m1, result.get(0));
}
@Test
public void testQuery() {
Member m1 = new Member("aaa", 10);
Member m2 = new Member("bbb", 20);
memberRepository.save(m1);
memberRepository.save(m2);
List<Member> result = memberRepository.findMember("aaa", 10);
assertEquals(m1, result.get(0));
}
@Test
public void findUsernameList() {
Member m1 = new Member("aaa", 10);
Member m2 = new Member("bbb", 20);
memberRepository.save(m1);
memberRepository.save(m2);
List<String> result = memberRepository.findUsernameList();
for (String s : result) {
System.out.println("s = " + s);
}
assertEquals(2, result.size());
}
@Test
public void findMemberDto() {
Team team = new Team("teamA");
teamRepository.save(team);
Member m1 = new Member("aaa", 10);
m1.setTeam(team);
memberRepository.save(m1);
List<MemberDto> result = memberRepository.findMemberDto();
assertEquals("aaa", result.get(0).getUsername());
assertEquals("teamA", result.get(0).getTeamName());
}
@Test
public void findByNames() {
Member m1 = new Member("aaa", 10);
Member m2 = new Member("bbb", 20);
memberRepository.save(m1);
memberRepository.save(m2);
List<Member> result = memberRepository.findByNames(Arrays.asList("aaa", "bbb"));
for (Member member : result) {
System.out.println("member = " + member);
}
}
@Test
public void returnType() {
Member m1 = new Member("aaa", 10);
Member m2 = new Member("bbb", 20);
Member m3 = new Member("ddd", 20);
Member m4 = new Member("ddd", 20);
memberRepository.save(m1);
memberRepository.save(m2);
memberRepository.save(m3);
memberRepository.save(m4);
List<Member> memberList = memberRepository.findListByUsername("aaa");
Member member = memberRepository.findMemberByUsername("aaa");
Optional<Member> optionalMember = memberRepository.findOptionalByUsername("ccc");
assertEquals(1, memberList.size());
assertEquals(m1, member);
assertTrue(optionalMember.isEmpty());
List<Member> resultList = memberRepository.findListByUsername("ccc");
Member result = memberRepository.findMemberByUsername("ccc");
assertEquals(0, resultList.size()); // 조회 데이터가 없을 경우 빈 리스트 리턴
assertNull(result); // 조회 데이터가 없을 경우 exception 발생 X -> spring data jpa 가 예외처리 하여 null 리턴
assertThrows(IncorrectResultSizeDataAccessException.class,
() -> memberRepository.findOptionalByUsername("ddd")); // 반환 타입은 단건 인데 여러 건이 조회 되었을 경우 예외 발생
}
}