1、创建项目
点击“Create New Project”,新建项目
选择Maven项目
项目配置
使用本地安装的Maven
一直点击Next,最后点击完成
当控制台中出现“BUILD SUCCESS”,项目创建成功
2、加载依赖
在pom.xml文件中添加Spring依赖和日志相关依赖
<dependencies>
<!--测试相关-->
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.11</version>
<scope>test</scope>
</dependency>
<!--Spring核心基础依赖-->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>5.0.2.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>5.0.2.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-beans</artifactId>
<version>5.0.2.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-expression</artifactId>
<version>5.0.2.RELEASE</version>
</dependency>
<!--日志相关-->
<dependency>
<groupId>commons-logging</groupId>
<artifactId>commons-logging</artifactId>
<version>1.2</version>
</dependency>
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>1.2.17</version>
</dependency>
</dependencies>
3、代码实现
在main目录下面创建java和resources目录
分别在java和resources目录上点击右键,分别选择Mark Directory as-->Sources Root 和 Mark Directory as -->Resources Root,设置为源码目录和资源目录
创建dao包,在dao包下创建TestDao接口和TestDao接口的实现类,结构如下图:
TestDao接口代码示例:
package dao;
public interface TestDao {
public void sayHello();
}
TestDaoImpl实现类代码示例:
package dao;
public class TestDaoImpl implements TestDao {
@Override
public void sayHello() {
System.out.println("Hello,Spring!");
}
}
在resources资源目录点击右键,依次选择New-->XML Configuration File-->Spring Config,创建applicationContext.xml的配置文件
applicationContext.xml配置文件代码示例:
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd">
<!--把testDao对象的创建权交给Spring-->
<bean id="testDao" class="dao.TestDaoImpl"></bean>
</beans>
创建test包,在test包下创建测试类SpringTest
SpringTest类代码示例:
package test;
import dao.TestDao;
import org.junit.jupiter.api.Test;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
public class SpringTest {
@Test
public void demo(){
//初始化Spring容器ApplicationContext,加载配置文件
ApplicationContext application = new ClassPathXmlApplicationContext("applicationContext.xml");
//通过容器获取testDao实例
TestDao testDao = (TestDao) application.getBean("testDao");
testDao.sayHello();
}
}
点击测试方法左侧的运行按钮,选择Run,测试代码
运行后控制台显示结果
到此项目运行成功!