JavaEE framework integration development entry to actual combat: Spring+SpringMVC+MyBAtis (micro-class version)-the first chapter of code exercises

Pure hand knock, thank you for your support

	使用eclipse编写，工程目录结构如下：

The first unit

Directory structure

The Spring core jar used is placed in the lib directory of WEB-INF

TestDao.java

package dao;

public interface TestDao {
    
    
	public void sayHello();
}

TestDaoImpl.java

package dao;

public class TestDaoImpl implements TestDao {
    
    

	@Override
	public void sayHello() {
    
    
		// TODO Auto-generated method stub
        System.out.println("Hello,Study hard!");
	}

}

Test.java

package test;

import org.springframework.beans.factory.BeanFactory;
import org.springframework.beans.factory.xml.XmlBeanFactory;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import org.springframework.context.support.FileSystemXmlApplicationContext;
import org.springframework.core.io.FileSystemResource;

import dao.TestDao;

public class test {
    
    

	public static void main(String[] args) {
    
    
		// TODO Auto-generated method stub
		/*初始化Spring容器，加载配置文件
		   BeanFactory工厂
		  BeanFactory beanFac=new XmlBeanFactory(new FileSystemResource("C:\\Users\\gao\\Desktop\\Spring环境搭建\\ch1\\src\\applicationContext.xml"));      
		   TestDao tt=(TestDao)beanFac.getBean("test");
		 */
			 
		//ApplicationContext appCon=new ClassPathXmlApplicationContext("applicationContext.xml");
        //TestDao tt=(TestDao)appCon.getBean("test");
		ApplicationContext appcon=
				new FileSystemXmlApplicationContext("C:\\\\Users\\\\gao\\\\Desktop\\\\Spring环境搭建\\\\ch1\\\\src\\\\applicationContext.xml");
		TestDao tt=(TestDao)appcon.getBean("test");
		tt.sayHello();
	}
}

application.xml

package test;

import org.springframework.beans.factory.BeanFactory;
import org.springframework.beans.factory.xml.XmlBeanFactory;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import org.springframework.context.support.FileSystemXmlApplicationContext;
import org.springframework.core.io.FileSystemResource;

import dao.TestDao;

public class test {
    
    

	public static void main(String[] args) {
    
    
		// TODO Auto-generated method stub
		/*初始化Spring容器，加载配置文件
		   BeanFactory工厂
		  BeanFactory beanFac=new XmlBeanFactory(new FileSystemResource("C:\\Users\\gao\\Desktop\\Spring环境搭建\\ch1\\src\\applicationContext.xml"));      
		   TestDao tt=(TestDao)beanFac.getBean("test");
		 */
			 
		//ApplicationContext appCon=new ClassPathXmlApplicationContext("applicationContext.xml");
        //TestDao tt=(TestDao)appCon.getBean("test");
		ApplicationContext appcon=
				new FileSystemXmlApplicationContext("C:\\\\Users\\\\gao\\\\Desktop\\\\Spring环境搭建\\\\ch1\\\\src\\\\applicationContext.xml");
		TestDao tt=(TestDao)appcon.getBean("test");
		tt.sayHello();
	}
}

web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5">
  <display-name>ch1</display-name>
  <welcome-file-list>
    <welcome-file>index.html</welcome-file>
    <welcome-file>index.htm</welcome-file>
    <welcome-file>index.jsp</welcome-file>
    <welcome-file>default.html</welcome-file>
    <welcome-file>default.htm</welcome-file>
    <welcome-file>default.jsp</welcome-file>
  </welcome-file-list>
</web-app>

operation result