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geektime-spring-family
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DigitalSonic 6 years ago
parent fed65b2ace
commit 2a6e741222
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25
FAQ 2019-03/jpa-demo/.gitignore vendored
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/target/
!.mvn/wrapper/maven-wrapper.jar
### STS ###
.apt_generated
.classpath
.factorypath
.project
.settings
.springBeans
.sts4-cache
### IntelliJ IDEA ###
.idea
*.iws
*.iml
*.ipr
### NetBeans ###
/nbproject/private/
/nbbuild/
/dist/
/nbdist/
/.nb-gradle/
/build/

64
FAQ 2019-03/jpa-demo/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>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.1.2.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>geektime.spring.springbucks</groupId>
<artifactId>jpa-demo</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>jpa-demo</name>
<description>Demo project for Spring Boot</description>
<properties>
<java.version>1.8</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<dependency>
<groupId>org.joda</groupId>
<artifactId>joda-money</artifactId>
<version>1.0.1</version>
</dependency>
<dependency>
<groupId>org.jadira.usertype</groupId>
<artifactId>usertype.core</artifactId>
<version>6.0.1.GA</version>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<optional>true</optional>
</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>

61
FAQ 2019-03/jpa-demo/src/main/java/geektime/spring/springbucks/jpademo/JpaDemoApplication.java
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package geektime.spring.springbucks.jpademo;
import geektime.spring.springbucks.jpademo.model.Coffee;
import geektime.spring.springbucks.jpademo.model.CoffeeOrder;
import geektime.spring.springbucks.jpademo.repository.CoffeeOrderRepository;
import geektime.spring.springbucks.jpademo.repository.CoffeeRepository;
import lombok.extern.slf4j.Slf4j;
import org.joda.money.CurrencyUnit;
import org.joda.money.Money;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.ApplicationArguments;
import org.springframework.boot.ApplicationRunner;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.data.jpa.repository.config.EnableJpaRepositories;
import java.util.Arrays;
@SpringBootApplication
@EnableJpaRepositories
@Slf4j
public class JpaDemoApplication implements ApplicationRunner {
@Autowired
private CoffeeRepository coffeeRepository;
@Autowired
private CoffeeOrderRepository orderRepository;
public static void main(String[] args) {
SpringApplication.run(JpaDemoApplication.class, args);
}
@Override
public void run(ApplicationArguments args) throws Exception {
initOrders();
}
private void initOrders() {
Coffee espresso = Coffee.builder().name("espresso")
.price(Money.of(CurrencyUnit.of("CNY"), 20.0))
.build();
coffeeRepository.save(espresso);
log.info("Coffee: {}", espresso);
Coffee latte = Coffee.builder().name("latte")
.price(Money.of(CurrencyUnit.of("CNY"), 30.0))
.build();
coffeeRepository.save(latte);
log.info("Coffee: {}", latte);
log.info("Total Coffee: {}", coffeeRepository.count());
CoffeeOrder order = CoffeeOrder.builder()
.customer("Li Lei")
.items(Arrays.asList(espresso, latte))
.state(0)
.build();
orderRepository.save(order);
log.info("Order: {}", order);
}
}

41
FAQ 2019-03/jpa-demo/src/main/java/geektime/spring/springbucks/jpademo/model/Coffee.java
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package geektime.spring.springbucks.jpademo.model;
import lombok.AllArgsConstructor;
import lombok.Builder;
import lombok.Data;
import lombok.NoArgsConstructor;
import org.hibernate.annotations.CreationTimestamp;
import org.hibernate.annotations.Type;
import org.hibernate.annotations.UpdateTimestamp;
import org.joda.money.Money;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.Table;
import java.io.Serializable;
import java.util.Date;
@Entity
@Table(name = "T_MENU")
@Builder
@Data
@NoArgsConstructor
@AllArgsConstructor
public class Coffee implements Serializable {
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
private Long id;
private String name;
@Column
@Type(type = "org.jadira.usertype.moneyandcurrency.joda.PersistentMoneyMinorAmount",
parameters = {@org.hibernate.annotations.Parameter(name = "currencyCode", value = "CNY")})
private Money price;
@Column(updatable = false)
@CreationTimestamp
private Date createTime;
@UpdateTimestamp
private Date updateTime;
}

44
FAQ 2019-03/jpa-demo/src/main/java/geektime/spring/springbucks/jpademo/model/CoffeeOrder.java
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package geektime.spring.springbucks.jpademo.model;
import lombok.AllArgsConstructor;
import lombok.Builder;
import lombok.Data;
import lombok.NoArgsConstructor;
import org.hibernate.annotations.CreationTimestamp;
import org.hibernate.annotations.UpdateTimestamp;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.JoinTable;
import javax.persistence.ManyToMany;
import javax.persistence.Table;
import java.io.Serializable;
import java.util.Date;
import java.util.List;
@Entity
@Table(name = "T_ORDER")
@Data
@NoArgsConstructor
@AllArgsConstructor
@Builder
public class CoffeeOrder implements Serializable {
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
private Long id;
private String customer;
@ManyToMany
@JoinTable(name = "T_ORDER_COFFEE")
private List<Coffee> items;
@Column(nullable = false)
private Integer state;
@Column(updatable = false)
@CreationTimestamp
private Date createTime;
@UpdateTimestamp
private Date updateTime;
}

7
FAQ 2019-03/jpa-demo/src/main/java/geektime/spring/springbucks/jpademo/repository/CoffeeOrderRepository.java
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package geektime.spring.springbucks.jpademo.repository;
import geektime.spring.springbucks.jpademo.model.CoffeeOrder;
import org.springframework.data.repository.CrudRepository;
public interface CoffeeOrderRepository extends CrudRepository<CoffeeOrder, Long> {
}

7
FAQ 2019-03/jpa-demo/src/main/java/geektime/spring/springbucks/jpademo/repository/CoffeeRepository.java
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package geektime.spring.springbucks.jpademo.repository;
import geektime.spring.springbucks.jpademo.model.Coffee;
import org.springframework.data.repository.CrudRepository;
public interface CoffeeRepository extends CrudRepository<Coffee, Long> {
}

7
FAQ 2019-03/jpa-demo/src/main/resources/application.properties
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spring.jpa.hibernate.ddl-auto=create-drop
spring.jpa.properties.hibernate.show_sql=true
spring.jpa.properties.hibernate.format_sql=true
spring.datasource.url=jdbc:mysql://localhost/springbucks?useSSL=false
spring.datasource.username=springbucks
spring.datasource.password=springbucks

17
FAQ 2019-03/jpa-demo/src/test/java/geektime/spring/springbucks/jpademo/JpaDemoApplicationTests.java
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package geektime.spring.springbucks.jpademo;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.test.context.junit4.SpringRunner;
@RunWith(SpringRunner.class)
@SpringBootTest
public class JpaDemoApplicationTests {
@Test
public void contextLoads() {
}
}

25
FAQ 2019-03/stream-demo/.gitignore vendored
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/target/
!.mvn/wrapper/maven-wrapper.jar
### STS ###
.apt_generated
.classpath
.factorypath
.project
.settings
.springBeans
.sts4-cache
### IntelliJ IDEA ###
.idea
*.iws
*.iml
*.ipr
### NetBeans ###
/nbproject/private/
/nbbuild/
/dist/
/nbdist/
/.nb-gradle/
/build/

30
FAQ 2019-03/stream-demo/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>geektime.spring.faq</groupId>
<artifactId>stream-demo</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<java.version>1.8</java.version>
</properties>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<configuration>
<source>${java.version}</source>
<target>${java.version}</target>
<encoding>${project.build.sourceEncoding}</encoding>
</configuration>
</plugin>
</plugins>
</build>
</project>

19
FAQ 2019-03/stream-demo/src/main/java/geektime/spring/faq/Demo.java
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package geektime.spring.faq;
import java.util.Arrays;
import java.util.List;
import java.util.stream.Collectors;
public class Demo {
public static void main(String[] args) {
Arrays.asList("Foo", "Bar").stream()
.filter(s -> s.equalsIgnoreCase("foo"))
.map(s -> s.toUpperCase())
.forEach(System.out::println);
Arrays.stream(new String[] { "s1", "s2", "s3" })
.map(s -> Arrays.asList(s))
.flatMap(l -> l.stream())
.forEach(System.out::println);
}
}
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