使用Springboot快速搭建项目

####1. 项目入口

package com.kyx.app;

import com.kyx.app.bean.TestSpringSource;
import com.kyx.app.spring.conf.AppConf;
import com.zaxxer.hikari.HikariDataSource;
import org.mybatis.spring.annotation.MapperScan;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.boot.web.servlet.ServletComponentScan;
import org.springframework.context.annotation.Bean;

import javax.sql.DataSource;

@SpringBootApplication
@EnableAutoConfiguration(exclude = {DataSourceAutoConfiguration.class})
@ServletComponentScan
@MapperScan(basePackages = "com.kyx.app.mybatis.mapper")
public class DemoApplication {

	private Logger logger = LoggerFactory.getLogger(DemoApplication.class);

	@Autowired
	private AppConf appConf;

//	@Value("${mybatis.mapperLocations}")
//	private String mapperLocations;
//	@Value("${mybatis.typeAliasPackage}")
//	private String typeAliasPackage;

//	@Bean
//	public FilterRegistrationBean get() {
//		SessionFilter sessionFilter = new SessionFilter();
//		return new FilterRegistrationBean(sessionFilter);
//	}
//	@Bean
//	public ServletRegistrationBean servletRegistrationBean(){
//		return new ServletRegistrationBean(new MyServlet(),"/lottery/go");
//	}
//	@Bean
//	public ServletListenerRegistrationBean servletListenerRegistrationBean(){
//		return new ServletListenerRegistrationBean(new MyServletListener());
//	}
//	@Bean
//	public Filter sessionFilter(){
//		SessionFilter sessionFilter = new SessionFilter();
//		return  sessionFilter;
//	}
	@Bean
	@ConfigurationProperties(prefix = "spring.dataSource")
	public DataSource dataSources(){
		return new HikariDataSource();
	}


//	@Bean
//	public SqlSessionFactory sqlSessionFactory() throws Exception{
//			SqlSessionFactoryBean sessionFactory = new SqlSessionFactoryBean();
//			sessionFactory.setDataSource(dataSource());
//			// 使用xml,必须
			logger.info("=======>application.properties: {}",mapperLocations);
			logger.info("=======>application.properties: {}",typeAliasPackage);
//
//			sessionFactory.setTypeAliasesPackage(appConf.getTypeAliasPackage());
//			sessionFactory.setMapperLocations(new PathMatchingResourcePatternResolver().getResources(appConf.getMapperLocations()));
//			return sessionFactory.getObject();
//	}



//	@Bean
//	public SqlSessionFactory sqlSessionFactory(DataSource dataSource) throws Exception{
//		SqlSessionFactoryBean sessionFactory = new SqlSessionFactoryBean();
//		sessionFactory.setDataSource(dataSource);
//		// 使用xml,必须
			logger.info("=======>application.properties: {}",mapperLocations);
			logger.info("=======>application.properties: {}",typeAliasPackage);
//
//		sessionFactory.setTypeAliasesPackage(appConf.getTypeAliasPackage());
//		sessionFactory.setMapperLocations(new PathMatchingResourcePatternResolver().getResources(appConf.getMapperLocations()));
//		return sessionFactory.getObject();
//	}
//
//	@Bean
//	public SqlSessionDaoSupport sqlSessionDaoSupport(SqlSessionFactory sqlSessionFactory){
//		System.out.println(sqlSessionFactory);
//		SqlSessionDaoSupport sqlSessionDaoSupport = new SqlSessionDaoSupport() {
//			@Override
//			public void setSqlSessionFactory(SqlSessionFactory sqlSessionFactory) {
//				super.setSqlSessionFactory(sqlSessionFactory);
//			}
//		};
//		return sqlSessionDaoSupport;
//	}

	@Bean
	public TestSpringSource setVersion(){
		TestSpringSource test = new TestSpringSource();
		test.setVersion("1.0");
		return test;
	}
	public static void main(String[] args) {
			//System.setProperty("spring.devtools.restart.enabled", "true");
//			TestSpringSource test = new TestSpringSource();
//			test.setVersion("1.0");
			//SpringApplication.run("classpath:applicationContext.xml", args);
			SpringApplication.run(DemoApplication.class, args);
	}
}

#####1. 所有需要项目启动就加载的东西需要在@Configuration(@SpringBootApplication
继承了它)的类中实例化，如filter、listener等。
2. 实例化方式：
- @Bean 手动实例化
- @ServletComponentScan 和@WebFilter、 @WebListener、 @WebServlet

---

####2. @RestController使用，使得URL更加restful

package com.kyx.config.api;

import com.kyx.config.domain.DeviceConfig;
import com.kyx.config.domain.DeviceConfigExample;
import com.kyx.config.repository.mapper.DeviceConfigMapper;
import com.kyx.config.service.DeviceConfigService;
import com.kyx.config.support.view.Ok;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.servlet.ModelAndView;

import java.util.List;

/**
 * Created by XuHe on 17/1/9.
 */
@RestController
@RequestMapping("/device")
public class DeviceConfigController {
    @Autowired
    private DeviceConfigMapper mapper;

    @Autowired
    private DeviceConfigService service;

    @RequestMapping(path = "sn/{sn}" , method = RequestMethod.GET)
    public Ok getBySN(@PathVariable String sn){
        return new Ok(service.getBySN(sn));
    }

    @RequestMapping(path = "sn/{sn}" , method = RequestMethod.PUT)
    public String update(){
        return "ok";
    }

}

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