SpringBoot這個框架我一直比較喜歡,但迫于沒有時間整理,一直延續到現在才來整理框架。這個文章將是一個系列,從基礎到復雜,后面將會不斷推出系列內容。所有示例都使用Intellij IDEA編寫,項目構建方式選擇了Gradle
本篇文章主要介紹持久層、API文檔、基礎日志的配制。在數據持久層上我選擇的是Spring-data-jpa,使用它非常方便,可少寫很多代碼,效率也不錯,而且還是spring的親兒子;api文檔選擇的是Swagger UI2,Swagger可以自動生成API文檔,在文檔界面上還可以測試,給開發代來很多方便的;日志這一部分的話就用了比較基礎的東西了,會把運行日志輸出到指定文件中,方便維護時查找問題。
第一步,創建項目并配制build.gradle文件
通過Intellij IDEA新建一個Gradle項目,在build.gradle文件中添加項目配制,執行一次Refresh all Gradle Projects
apply plugin: 'java'
apply plugin: 'org.springframework.boot'
buildscript {
repositories {
jcenter()
}
dependencies {
classpath("org.springframework.boot:spring-boot-gradle-plugin:1.5.2.RELEASE")
}
}
repositories {
jcenter()
}
dependencies {
compile "org.springframework.boot:spring-boot-starter"
compile 'org.springframework.boot:spring-boot-starter-actuator'
compile 'org.springframework.boot:spring-boot-starter-web'
compile 'org.springframework.boot:spring-boot-starter-data-jpa'
compile 'org.springframework.boot:spring-boot-starter-amqp'
compile 'org.springframework.boot:spring-boot-starter-integration'
compile 'org.springframework.integration:spring-integration-file:4.3.5.RELEASE'
compile 'org.springframework.boot:spring-boot-devtools'
compile 'mysql:mysql-connector-java'
compile 'com.google.code.gson:gson:2.8.0'
compile "io.springfox:springfox-swagger-ui:2.2.2"
compile "io.springfox:springfox-swagger2:2.2.2"
testCompile("org.springframework.boot:spring-boot-starter-test")
}
第二步,創建項目文件目錄
- 創建java文件夾,在src文件夾下創建文件夾“/main/java”
- 創建resources文件夾,在src文件夾下創建文件夾“/main/resources”
第三步,配制application.yml文件
在“src/main/resources/”文件夾下新建文件“application.yml”,并修改其中內容。
server:服務器相關設定,在這晨設定了服務啟動后的端口號和服務的根地址
spring.datasource:配制系統數據源
spring.jpa:設置jpa的基礎信息
logging:調協日志的信息,logging.file設置日志文件的存放,可以是“D:\test.logging”這種方式
server:
port: 8081
context-path: /api/
spring:
datasource:
driverClassName: com.mysql.jdbc.Driver
url: jdbc:mysql://220.192.001.001:3306/test
username: root
password: 123456
initialSize: 5
minIdle: 5
maxActive: 20
jpa:
hibernate:
ddl-auto: update
naming:
strategy: org.hibernate.cfg.ImprovedNamingStrategy
show-sql: true
database: mysql
logging:
file: springboot.log
第四步,添加Application.java文件
在項目java包中添加Application.java文件,并初始化內容
package leix.lebean.sweb;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.builder.SpringApplicationBuilder;
import org.springframework.boot.web.support.SpringBootServletInitializer;
import org.springframework.context.ApplicationContext;
@SpringBootApplication
public class Application extends SpringBootServletInitializer {
@Autowired
ApplicationContext context;
@Override
protected SpringApplicationBuilder configure(SpringApplicationBuilder builder) {
return builder.sources(Application.class);
}
public static void main(String[] args) throws Exception {
SpringApplication.run(Application.class, args);
}
}
到這里所有的配制就完成了,剩下的就是數據層的使用了,下面介紹一上jpa的使用
創建數據實體
package leix.lebean.sweb.model;
import javax.persistence.*;
import java.io.Serializable;
/**
* Name:City
* Description:
* Author:leix
* Time: 2017/3/28 14:02
*/
@Entity
@Table(name = "city")
public class City implements Serializable{
@Id
@Column(name = "id")
@GeneratedValue(strategy = GenerationType.IDENTITY)
private int id;
@Column(name = "name")
private String name;
@Column(name = "state")
private String state;
@Column(name = "country")
private String country;
public int getId() {return id;}
public void setId(int id) {this.id = id;}
public String getName() {return name;}
public void setName(String name) { this.name = name;}
public String getState() {return state;}
public void setState(String state) {this.state = state;}
public String getCountry() {return country;}
public void setCountry(String country) {this.country = country;}
}
創建數據處理倉庫,jpa的具體語法在這里不詳細講述了,后面會專門寫一篇文章來介紹
package leix.lebean.sweb.repository;
import leix.lebean.sweb.model.City;
import org.springframework.data.jpa.repository.JpaRepository;
/**
* Name:CityRepository
* Description:
* Author:leix
* Time: 2017/3/28 14:13
*/
public interface CityRepository extends JpaRepository<City, Integer> {
City findById(int id);
}
數據處理倉庫的調用
package leix.lebean.sweb.service.impl;
import leix.lebean.sweb.model.City;
import leix.lebean.sweb.repository.CityRepository;
import leix.lebean.sweb.service.CityService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
@Service
@Transactional
public class CityServiceImpl implements CityService {
@Autowired
CityRepository cityRepository;
@Override
public City findById(int id) {
return cityRepository.findById(id);
}
}
源碼看這里:https://github.com/lebean/spring-boot/tree/master/chapter01