1.@requestmapping注解,属于org.springframework.web.bind.annotation包下。org.springframework.web jar包。
2.@RestController注解,也属于org.springframework.web.bind.annotation包下,org.springframework.web jar包。
都是spring mvc,也就是spring web jar包下
3.@ComponentScan(basePackages = "com.pingan.property.icore.pap.*")注解,包扫面注解,属于spring下的jar包,context上下文中嘛,负责spring的ioc注入。
--->org.springframework.context.annotation;org.springframework.context jar包
4.@SpringBootApplication 属于org.springframework.boot.autoconfigure包下。org.springframework.boot jar包下。
5.@MapperScan(basePackages = "com.pingan.property.icore.pap.**.dao")注解,mapper当然属于mybatis了,所以属于mybatis的jar包下。
属于org.mybatis.spring.annotation;org.mybatis.spring jar包下。mybatis对接spring的jar包叫做org.mybatis.spring jar包
@SpringBootApplication
@ComponentScan(basePackages = "com.pingan.property.icore.pap.*")
@MapperScan(basePackages = "com.pingan.property.icore.pap.**.dao")
public class DemoApplication implements EnvironmentAware {
private RelaxedPropertyResolver propertyResolver;
@Override
public void setEnvironment(Environment env) {
this.propertyResolver = new RelaxedPropertyResolver(env, "spring.datasource.");
}
@Bean(destroyMethod = "close", initMethod = "init")
public DataSource dataSource() {
DruidDataSource dataSource = new DruidDataSource();
dataSource.setUrl(propertyResolver.getProperty("url"));
dataSource.setDriverClassName(propertyResolver.getProperty("driverClassName"));
dataSource.setDefaultAutoCommit(Boolean.parseBoolean(propertyResolver.getProperty("defaultAutoCommit")));
return dataSource;
}
public static void main(String[] args) {
SpringApplication.run(DemoApplication.class, args);
}
}
6.@Bean注解,属于org.springframework.context.annotation下,都是用来项目启动时向ioc容器中注入bean的注解
@Bean(destroyMethod = "close", initMethod = "init")
public DataSource dataSource() {
DruidDataSource dataSource = new DruidDataSource();
dataSource.setUrl(propertyResolver.getProperty("url"));
dataSource.setDriverClassName(propertyResolver.getProperty("driverClassName"));
dataSource.setDefaultAutoCommit(Boolean.parseBoolean(propertyResolver.getProperty("defaultAutoCommit")));
return dataSource;
}
7.@@Configuration org.springframework.context.annotation;
6.EnvironmentAware 接口,属于org.springframework.context包下
7.RelaxedPropertyResolver类,属于org.springframework.boot.bind包下。
public class RelaxedPropertyResolver implements PropertyResolver,实现了PropertyResolver接口
原文地址:http://www.cnblogs.com/panxuejun/p/6711118.html