IDEA+Maven创建Spring项目

这篇随笔搭建的工程是普通的Spring工程，用于学习Spring框架，如果要搭建SpringMVC工程，可以参考另一篇

第一步：在IDEA点击new -> project

左侧选择Maven,直接点击Next。第一次使用IDEA的朋友，顶部还要选择Project SDK路径，就是Java的安装路径。

这里随便填一下之后点击Next

选择项目存放路径，或者保持默认，点击Finish，来到工程页面之后，在项目文件夹上右键并选择Add Framework Support

 

 在这个页面找一下Spring,打钩。点击OK

完成后，会下载Spring的jar包，并存放在项目的lib目录下。

下载完成之后创建一个简单的项目。

四个Java文件一个appContext.xml我贴在这里

public class Student { private String name; private Homework homework; public Student(){} public Student(String name, Homework homework) { this.name = name; this.homework = homework; } public void doHomeWork(){ System.out.println(homework.getContent()); } public String getName() { return name; } public void setName(String name) { this.name = name; } public Homework getHomework() { return homework; } public void setHomework(Homework homework) { this.homework = homework; } }

public class Homework { private String content; public Homework(){} public Homework(String content) { this.content = content; } public String getContent() { return content; } public void setContent(String content) { this.content = content; } }

import java.util.Date; public class CheckNowTime { public void beforDoHomework(){ System.out.println(new Date(System.currentTimeMillis())); } }

import org.springframework.context.support.ClassPathXmlApplicationContext; public class App { public static void main(String[] args) { ClassPathXmlApplicationContext context = new ClassPathXmlApplicationContext("appContext.xml"); Student student = context.getBean(Student.class); System.out.println(student.getName()+"准备做作业了"); student.doHomeWork(); context.close(); } }

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:aop="http://www.springframework.org/schema/aop" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd">
    <!-- 让Spring管理 Student bean -->
    <bean id="student" class="demo1.Student">
        <property name="name" value="小明"></property>
        <property name="homework" ref="homework"></property>
    </bean>

    <!-- 让Spring管理Homework bean-->
    <bean id="homework" class="demo1.Homework">
        <property name="content" value="how to calc 3+2 ?"></property>
    </bean>

    <!-- 切面定义-->
    <bean id="checktime" class="demo1.CheckNowTime"></bean>
    <aop:config>
        <aop:aspect ref="checktime">
            <aop:pointcut id="dohomework" expression="execution(* *.doHomeWork(..))"/>
            <aop:before pointcut-ref="dohomework" method="beforDoHomework"></aop:before>
        </aop:aspect>
    </aop:config>
</beans>

 

因为例子中使用Spring AOP,所以还需要引入一个jar包。我的pom.xml如下：

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>com.example</groupId>
    <artifactId>test</artifactId>
    <version>1.0-SNAPSHOT</version>

    <dependencies>
        <dependency>
            <groupId>org.aspectj</groupId>
            <artifactId>aspectjweaver</artifactId>
            <version>1.9.4</version>
        </dependency>
    </dependencies>

</project>

 

然后你就可以运行自己的Spring项目啦，main方法在App类里面。