SpringBoot这个框架我一直比较喜欢,但迫于没有时间整理,一直延续到现在才来整理框架。这个文章将是一个系列,从基础到复杂,后面将会不断推出系列内容。所有示例都使用Intellij IDEA编写,项目构建方式选择了Gradle
本篇文章主要介绍持久层、API文档、基础日志的配制。在数据持久层上我选择的是Spring-data-jpa,使用它非常方便,可少写很多代码,效率也不错,而且还是spring的亲儿子;api文档选择的是Swagger UI2,Swagger可以自动生成API文档,在文档界面上还可以测试,给开发代来很多方便的;日志这一部分的话就用了比较基础的东西了,会把运行日志输出到指定文件中,方便维护时查找问题。
第一步,创建项目并配制build.gradle文件
通过Intellij IDEA新建一个Gradle项目,在build.gradle文件中添加项目配制,执行一次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,创建项目文件目录
- 创建java文件夹,在src文件夹下创建文件夹“/main/java”
- 创建resources文件夹,在src文件夹下创建文件夹“/main/resources”
第三步,配制application.yml文件
在“src/main/resources/”文件夹下新建文件“application.yml”,并修改其中内容。
server:服务器相关设定,在这晨设定了服务启动后的端口号和服务的根地址
spring.datasource:配制系统数据源
spring.jpa:设置jpa的基础信息
logging:调协日志的信息,logging.file设置日志文件的存放,可以是“D:\test.logging”这种方式
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
在项目java包中添加Application.java文件,并初始化内容
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);
}
}
到这里所有的配制就完成了,剩下的就是数据层的使用了,下面介绍一上jpa的使用
创建数据实体
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;}
}
创建数据处理仓库,jpa的具体语法在这里不详细讲述了,后面会专门写一篇文章来介绍
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);
}
数据处理仓库的调用
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);
}
}
源码看这里:https://github.com/lebean/spring-boot/tree/master/chapter01