标签:注解 contex odi scan ext cache root 接口 ges
一.关于spring boot
1.spring boot 简而言之就是使spring启动更容易,它的座右铭是"just run",大多数spring应用程序仅仅需要很少的配置,使用spring-boot将大大减少编写spring相关的代码量和xml配置文件
2.通常情况下spring-boot会在classpath下寻找application.properties或者application.yml配置文件,绝大多数的应用都会在此配置文件里配置
二 spring boot集成Mybatis
gradle配置:
//gradle配置: compile("org.springframework.boot:spring-boot-starter-web:1.4.2.RELEASE") compile (‘org.mybatis.spring.boot:mybatis-spring-boot-starter:1.3.0‘){ exclude group:‘org.springframework‘ } compile("mysql:mysql-connector-java:5.1.39")
application.yml配置
spring:
profiles:
active: local
mybatis:
configuration:
log-impl: org.apache.ibatis.logging.slf4j.Slf4jImpl
cache-enabled: true
interceptors:
-com.github.pagehelper.PageHelper
mapper-locations: classpath:mapper/*.xml
application-local.yml配置
spring: datasource: username: root password: driver-class-name: com.mysql.jdbc.Driver url: jdbc:mysql://localhost:3306/house?characterEncoding=utf8 server: port: 8082
注意此处配置文件最好在classpath的根目录下
三.spring-boot启动代码:
package com.lyhs.machineparts.run; import com.lyhs.machineparts.entity.User; import com.lyhs.machineparts.mapper.UserMapper; import org.mybatis.spring.annotation.MapperScan; import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication; import org.springframework.context.ApplicationContext; import org.springframework.context.annotation.ComponentScan; import java.sql.SQLException; import java.util.List; /** * 1.注意@MapperScan注解必须在spring-boot处标注,作用是扫描Mapper接口并创建其代理对象,作用类似于MapperScannerConfigure * 2.spring-boot对象池自动将根据配置文件自动创建SqlSessionFactoryBean与SqlSessionTemplate对象 * 3.spring-boot的好处省略绝大多数代码及配置文件 * Created by niechen on 17/7/16. */ @SpringBootApplication @ComponentScan("com.lyhs") @MapperScan(basePackages = "com.lyhs.machineparts.mapper") public class PortalProvider { public static void main(String[] args) throws SQLException { ApplicationContext applicationContext = SpringApplication.run(PortalProvider.class, args); UserMapper userMapper = applicationContext.getBean(UserMapper.class); // System.out.println(houseMapper.toString()); List<User> users = userMapper.selectAll(); for (User user : users) { System.out.println(user.getName()); } } }
标签:注解 contex odi scan ext cache root 接口 ges
原文地址:http://www.cnblogs.com/niechen/p/7214675.html