IDEA下创建Springboot，thymeleaf，Mybatis，Postgresql，Gradle项目

最近Springboot框架越来越流行，因为集成了tomcat，可以直接打成jar包，方便部署，又可以完全摒弃配置文件，很适用于现在流行的微服务。下面让我们来完成Springboot项目的搭建。

1、目录结构

2、gradle文件

下载相应的jar包

group 'bingo'version '1.0.0'apply plugin: 'java'repositories {    mavenCentral()}buildscript {    ext {        springBootVersion = '1.4.1.RELEASE'    }    repositories {        mavenCentral()    }    dependencies {        classpath("org.springframework.boot:spring-boot-gradle-plugin:${springBootVersion}")    }}apply plugin: 'spring-boot'jar {    baseName = 'bingo'    version = '1.0.0'}sourceCompatibility = 1.8targetCompatibility = 1.8repositories {    mavenCentral()}dependencies {    compile('org.springframework.boot:spring-boot-devtools')    compile('org.springframework.boot:spring-boot-starter-thymeleaf')    compile('org.springframework.boot:spring-boot-starter-web')    compile('org.springframework.boot:spring-boot-starter-aop')    compile('org.springframework.boot:spring-boot-starter-cache')    compile('org.mybatis.spring.boot:mybatis-spring-boot-starter:1.1.1')    compile('org.postgresql:postgresql:9.4.1212.jre7')    testCompile('org.springframework.boot:spring-boot-starter-test')}task wrapper(type: Wrapper) {    gradleVersion = '2.12'}

3、BingoApplication启动文件

整个Springboot项目由此class中的main程序启动，由@SpringBootApplication完成对项目初始化的bean创建。其中mybatis首先需要由mybatis-spring jar中的sqlSessionFactoryBean生成SqlSessionFactory，然后再配置dateSource。最后由@MapperScan注解完成对dao的bean的生成

@SpringBootApplication@MapperScan("com.blog.sqlmap")public class BingoApplication {    public static void main(String[] args) {        new SpringApplicationBuilder().bannerMode(Banner.Mode.OFF);        SpringApplication application = new SpringApplication(BingoApplication.class);        application.setBannerMode(Banner.Mode.OFF);        application.run(args);    }    @Bean    @ConfigurationProperties(prefix = "spring.datasource")    public DataSource dataSource() {        return new org.apache.tomcat.jdbc.pool.DataSource();    }    @Bean    public SqlSessionFactory sqlSessionFactoryBean() throws Exception {        SqlSessionFactoryBean sqlSessionFactoryBean = new SqlSessionFactoryBean();        sqlSessionFactoryBean.setDataSource(dataSource());        PathMatchingResourcePatternResolver resolver = new PathMatchingResourcePatternResolver();        sqlSessionFactoryBean.setMapperLocations(resolver.getResources("classpath:/mybatis/*.xml"));        return sqlSessionFactoryBean.getObject();    }    @Bean    public PlatformTransactionManager transactionManager() {        return new DataSourceTransactionManager(dataSource());    }}

4、application.properties配置文件

配置了关于thymeleaf的配置和postgresql数据库连接dataSource的配置。

server.session-timeout= -1  server.tomcat.uri-encoding = UTF-8# THYMELEAF (ThymeleafAutoConfiguration)spring.thymeleaf.prefix=classpath:/web/spring.thymeleaf.suffix=.htmlspring.thymeleaf.mode=HTML5spring.thymeleaf.encoding=UTF-8spring.thymeleaf.content-type=text/htmlspring.thymeleaf.cache=truespring.mvc.favicon.enabled = falsespring.datasource.url = jdbc:postgresql://localhost/postgresspring.datasource.username = postgresspring.datasource.password = rootspring.datasource.driver-class-name=org.postgresql.Driver

5、Controller，server，dao，及sqlmap

dao层只需要定义一个接口，由BingoApplication中的注解@MapperScan(“com.blog.sqlmap”)完成dao bean的创建。

@RequestMapping("/datebase")@Controllerpublic class DatebaseController {    @Autowired    private DatebaseService datebaseService;    @RequestMapping("/page")    public ModelAndView page(){        List<Datebase> datebaseList =  datebaseService.findDatebaseList();        ModelAndView mav = new ModelAndView("/datebase/datebase1");        mav.addObject("test",datebaseList.get(0));        return mav;    }public interface DatebaseService {    List<Datebase> findDatebaseList();}@Servicepublic class DatebaseServiceImpl implements DatebaseService{    @Autowired    private DatebaseDao datebaseDao;    @Override    public List<Datebase> findDatebaseList() {        return datebaseDao.findDatebaseList();    }}public interface DatebaseDao {    List<Datebase> findDatebaseList();}<?xml version="1.0" encoding="UTF-8" ?><!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd" ><mapper namespace="com.blog.sqlmap.DatebaseDao" >    <select id="findDatebaseList" resultType="com.blog.datebase.model.Datebase">        select * from datebase    </select></mapper>

6、datebase1 HTML页面

thymeleaf中用标签th:text=”${…}”或者 th:value=”{…}”来接受后台传出来的数据,这样就会展示从后台传过来的text对象。

<!doctype html><html xmlns="http://www.w3.org/1999/xhtml"      xmlns:th="http://www.thymeleaf.org"><meta charset="utf-8"/><div th:fragment="header">    <link rel="stylesheet" href="/css/common/init.css" type="text/css"/>    <link rel="stylesheet" href="/css/common/common.css" type="text/css"/>    <div class="log" th:text="${test.username}">登录</div></div></html>

现在呢，我们的Springboot项目已经完成，也已经能够跑起来了。截图呢，我也不贴了，也就是一个字段而已。
关于mybatis，目前在学习源码，以后会写几篇关于mybatis源码的博文。
如果你觉得有什么可以改进的地方，请不要吝啬你的手指，给我留言吧。