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5.14. Spring boot with MySQL

5.14.1. Maven

pom.xml

			
<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>netkiller.cn</groupId>
	<artifactId>api.netkiller.cn</artifactId>
	<version>0.0.1-SNAPSHOT</version>
	<packaging>jar</packaging>

	<name>api.netkiller.cn</name>
	<url>http://maven.apache.org</url>

	<properties>
		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
	</properties>

	<parent>
		<groupId>org.springframework.boot</groupId>
		<artifactId>spring-boot-starter-parent</artifactId>
		<version>1.3.0.RELEASE</version>
	</parent>
	<dependencies>
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-web</artifactId>
		</dependency>
<!-- 
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-security</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-jdbc</artifactId>
		</dependency>		

		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-data-redis</artifactId>
		</dependency>
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-data-mongodb</artifactId>
		</dependency>
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-amqp</artifactId>
		</dependency>
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-devtools</artifactId>
		</dependency>
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-test</artifactId>
			<scope>test</scope>
		</dependency>

		<dependency>
			<groupId>org.springframework.data</groupId>
			<artifactId>spring-data-mongodb</artifactId>
		</dependency>
	 	<dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
        </dependency>
		<dependency>
			<groupId>com.google.code.gson</groupId>
			<artifactId>gson</artifactId>
			<scope>compile</scope>
		</dependency>
		<dependency>
			<groupId>junit</groupId>
			<artifactId>junit</artifactId>
			<scope>test</scope>
		</dependency>
	</dependencies>

	<build>
		<sourceDirectory>src</sourceDirectory>
		<plugins>
			<plugin>
				<groupId>org.springframework.boot</groupId>
				<artifactId>spring-boot-maven-plugin</artifactId>
			</plugin>
			<plugin>
				<artifactId>maven-compiler-plugin</artifactId>
				<version>3.3</version>
				<configuration>
					<source />
					<target />
				</configuration>
			</plugin>
			<plugin>
				<artifactId>maven-war-plugin</artifactId>
				<version>2.6</version>
				<configuration>
					<warSourceDirectory>WebContent</warSourceDirectory>
					<failOnMissingWebXml>false</failOnMissingWebXml>
				</configuration>
			</plugin>
		</plugins>
	</build>

</project>
			
			

5.14.2. Resource

src/main/resources/application.properties

			
spring.datasource.driver-class-name=com.mysql.jdbc.Driver
spring.datasource.url=jdbc:mysql://192.168.6.1:3306/test
spring.datasource.username=root
spring.datasource.password=password

spring.jpa.database=MYSQL
spring.jpa.show-sql=true
spring.jpa.hibernate.ddl-auto=update
#spring.jpa.hibernate.ddl-auto=create-drop
			
			
spring.datasource.url=jdbc:mysql://localhost:3306/test
spring.datasource.username=root
spring.datasource.password=pasword
spring.datasource.driver-class-name=com.mysql.jdbc.Driver
spring.datasource.max-idle=10
spring.datasource.max-wait=10000
spring.datasource.min-idle=5
spring.datasource.initial-size=5
spring.datasource.validation-query=SELECT 1
spring.datasource.test-on-borrow=false
spring.datasource.test-while-idle=true
spring.datasource.time-between-eviction-runs-millis=18800
spring.datasource.jdbc-interceptors=ConnectionState;SlowQueryReport(threshold=0)			
			

5.14.3. Application

			
package api;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.context.properties.EnableConfigurationProperties;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;

import api.ApplicationConfiguration;

@SpringBootApplication
@EnableConfigurationProperties(ApplicationConfiguration.class)
@EnableAutoConfiguration
@ComponentScan({ "api.web", "api.rest","api.service" })
@EnableMongoRepositories
public class Application {

	public static void main(String[] args) {
		SpringApplication.run(Application.class, args);
	}

}
			
			

5.14.4. JdbcTemplate

			
package api.web;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.jdbc.core.JdbcTemplate;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;

import api.domain.City;
import api.domain.Article;
import api.ApplicationConfiguration;
import api.repository.CityRepository;
import api.repository.ArticleRepository;
import api.service.TestService;

@Controller
public class IndexController {

	@Autowired
	private CityRepository repository;

	@Autowired
	private TestService testService;

	@Autowired
	private ApplicationConfiguration propertie;

	@Autowired
	private JdbcTemplate jdbcTemplate;

	@RequestMapping(value = "/article")
	public @ResponseBody String dailyStats(@RequestParam Integer id) {
		String query = "SELECT id, title, content from article where id = " + id;

		return jdbcTemplate.queryForObject(query, (resultSet, i) -> {
			System.out.println(resultSet.getLong(1)+","+ resultSet.getString(2)+","+ resultSet.getString(3));
			return (resultSet.getLong(1)+","+ resultSet.getString(2)+","+ resultSet.getString(3));
		});
	}
}

			
			

5.14.5. CrudRepository

ArticleRepository

			
package api.repository;

import org.springframework.data.domain.Page;
import org.springframework.data.domain.Pageable;
import org.springframework.data.repository.CrudRepository;
import org.springframework.stereotype.Repository;

import api.domain.Article;

@Repository
public interface ArticleRepository extends CrudRepository<Article, Long> {

    Page<Article> findAll(Pageable pageable);

}
			
			

Article.java

			
package api.domain;

import java.io.Serializable;

import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.Id;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Table;

@Entity
@Table(name = "article")
public class Article implements Serializable {
	private static final long serialVersionUID = 7998903421265538801L;
	
	@Id
	@GeneratedValue(strategy=GenerationType.IDENTITY)
	@Column(name = "id", unique=true, nullable=false, insertable=true, updatable = false)
	private Long id;
	private String title;
	private String content;

	public Article(){
		
	}
	public Article(String title, String content) {
		this.title = title;
		this.content = content;
	}

	public Long getId() {
		return id;
	}
	
	public void setId(long id) {
		this.id = id;
	}

	public String getTitle() {
		return title;
	}

	public void setTitle(String title) {
		this.title = title;
	}

	public String getContent() {
		return content;
	}

	public void setContent(String content) {
		this.content = content;
	}

	@Override
	public String toString() {
		return "Article [id=" + id + ", title=" + title + ", content=" + content + "]";
	}

}
			
			
			
package api.web;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.jdbc.core.JdbcTemplate;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;

import api.domain.City;
import api.domain.Article;
import api.ApplicationConfiguration;
import api.repository.CityRepository;
import api.repository.ArticleRepository;
import api.service.TestService;

@Controller
public class IndexController {

	@Autowired
	private CityRepository repository;

	@Autowired
	private TestService testService;

	@Autowired
	private ApplicationConfiguration propertie;

	@Autowired
	private ArticleRepository articleRepository;

	@RequestMapping("/save")
	@ResponseBody
	public String save() {
		articleRepository.save(new Article("Neo", "Chen"));
		return "OK";
	}
	
	@RequestMapping("/mysql")
	@ResponseBody
	public String mysql() {
		
		for (Article article : articleRepository.findAll()) {
			System.out.println(article);
		}
		return "OK";
	}
}