ソフトウェアエンジニアの技術ブログ：Software engineer tech blog

gradleで作ります。

dependencies {
	implementation 'org.springframework.boot:spring-boot-starter-data-jpa'
	implementation 'org.springframework.boot:spring-boot-starter-mustache'
	implementation 'org.springframework.boot:spring-boot-starter-web'
	implementation 'org.flywaydb:flyway-core'
	developmentOnly 'org.springframework.boot:spring-boot-devtools'
	runtimeOnly 'org.postgresql:postgresql'
	testImplementation 'org.springframework.boot:spring-boot-starter-test'
}

YAMLファイルの作成
src/main/resources/application.yml

spring:
  datasource:
    url:jdbc:postgresql://localhost:5432/test
    driverClassName:org.postgresql.Driver
    username:root
    password:
  mvc:
   favicon:
     enabled:false

ん？　Nullにするとエラーになるな

V1__Create.sql

create table tsubuyaki (
	id serial primary key,
	txt varchar(100) not null,
	version integer not null default 0,
	updated_time timestamp not null default current_timestamp,
	created_time timestamp not null default current_timestamp
);

Model

package com.example.demo.model;

import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.Version;

import org.hibernate.validator.constraints.NotEmpty;

@Entity
public class Tsubuyaki extends TimestampEntity {
	
	@Id @GeneratedValue(strategy=GenerationType.IDENTITY)
	public long id;
	
	@NotEmpty
	public String txt;
	
	@Version
	public long version;
}

package com.example.demo.model;

import java.sql.Timestamp;
import java.util.Date;

import javax.persistence.Column;
import javax.persistence.MappedSuperclass;
import javax.persistence.PrePersist;
import javax.persistence.PreUpdate;

@MappedSuperclass
public abstract class TimestampEntity {
	
	public Timestamp updatedTime;
	
	@Column(updatable=false)
	public Timestamp createdTime;
	
	@PrePersist
	public void prePersist() {
		Timestamp ts = new Timestamp((new Date()).getTime());
		this.createdTime = ts;
		this.updatedTime = ts;
	}
	
	@PreUpdate
	public void preUpdate() {
		this.updatedTime = new Timestamp((new Date()).getTime());
	}
}

Repository

package com.example.demo.repository;

import org.springframework.data.repository.CrudRepository;

import com.example.demo.model.Tsubuyaki;

public interface TsubuyakiRepository extends
CrudRepository<Tsubuyaki, Long>{
	Iterable<Tsubuyaki> findAllByOrderByUpdatedTimeDesc();
}

controller

package com.example.demo.controller;

import java.util.Collections;
import java.util.Map;

import javax.validation.Valid;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;

import com.example.demo.model.Tsubuyaki;
import com.example.demo.repository.TsubuyakiRepository;

@RestController @RequestMapping("/tsubuyaki")
public class TsubuyakiController {
	
	@Autowired TsubuyakiRepository repo;
	
	@RequestMapping(method=RequestMethod.POST)
	public Map<String, Tsubuyaki> create(
			@Valid @RequestBody Tsubuyaki tsubuyaki
			){
			return Collections.singletonMap(
					"tsubuyaki", repo.save(tsubuyaki));
		
	}
	@RequestMapping(method=RequestMethod.GET)
	public Map<String, Tsubuyaki> read(){
			return Collections.singletonMap(
					"tsubuyaki", repo.findAllByOrderByUpdatedTimeDesc());
		
	}
	@RequestMapping(path="/{id}", method=RequestMethod.PUT)
	public void update(
			@PathVariable Long id, @RequestParam String txt
			){
			Tsubuyaki tsubuyaki = repo.findOne(id);
			tsubuyaki.txt = txt;
			repo.save(tsubuyaki);
	}
	@RequestMapping(path="/{id}", method=RequestMethod.DELETE)
	public void delete(
			@PathVariable Long id
			){
			repo.delete(id);
	}
	
}

ぐぬぬぬ。。。

Controller

package com.example.demo;

import java.util.Date;
import java.text.SimpleDateFormat;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.scheduling.annotation.EnableScheduling;
import org.springframework.scheduling.annotation.Scheduled;

@SpringBootApplication
@EnableScheduling
public class HelloController {
	
	private static final SimpleDateFormat
	fmt = new SimpleDateFormat("HH:mm:ss");
	
	@Scheduled(fixedRate = 5000)
	public void reportTime() {
		System.out.println(fmt.format(new Date()));
	}
	
	public static void main(String[] args) {
		SpringApplication.run(HelloController.class, args);
	}
}

==========================
CONDITION EVALUATION DELTA
==========================

Positive matches:
—————–

TaskSchedulingAutoConfiguration#taskScheduler matched:
– @ConditionalOnBean (names: org.springframework.context.annotation.internalScheduledAnnotationProcessor; SearchStrategy: all) found bean ‘org.springframework.context.annotation.internalScheduledAnnotationProcessor’; @ConditionalOnMissingBean (types: org.springframework.scheduling.annotation.SchedulingConfigurer,org.springframework.scheduling.TaskScheduler,java.util.concurrent.ScheduledExecutorService; SearchStrategy: all) did not find any beans (OnBeanCondition)

Negative matches:
—————–

None

Exclusions:
———–

None

Unconditional classes:
———————-

None

16:02:28
16:02:33
16:02:38
16:02:43
16:02:48
16:02:53
16:02:58
16:03:03
16:03:08
16:03:13
16:03:18
16:03:23
16:03:28
16:03:33
16:03:38

なんやこれは、すげえ

application.propertiesの設定
メッセージを messages_ja.properties で設定できるようにする
application.properties

spring.messages.basename=messages
spring.messages.cache-seconds=-1
spring.messages.encoding=UTF-8

messages_ja.properties

key=\u3053\u3093\u306B\u3061\u306F\u3002

Controller

String message = msg.getMessage("key",null,Locale.JAPAN);

@RequestMapping(value="/msg", method=RequestMethod.GET)
public Map<String, String> msg(Locale locale){
	String message = msg.getMessage("key", null, locale);
	return Collections.singletonMap("message", message);
}

なるほどー