Spring 工程搭建

创建项目

1.使用idea创建Maven工程

• File————new————Project；
• 查看JDK————选择Maven————Next；
• 
• 输入项目名：SpringDemoLiuJie————next；完成

2.配置Maven

• File————Settings————搜索Maven;
• Maven home directory:选择安装路径——D:/Java/IntelliJ IDEA 2020.1/plugins/maven/lib/maven3
• 勾选Overrid将setting文件位置及仓库位置改为自配置;
• User settings file：maven安装路径\conf\setting.xml——D:\Java\apache-maven-3.6.3\apache-maven-3.6.3\conf\settings.xml
• Local repository：maven安装路径\repository——D:\Java\apache-maven-3.6.3\apache-maven-3.6.3\repositor

图解：

 

搭建配置

1, 引入依赖jar包

Java基础包：libs目录的四个spring基础包

网址：MavenRepository

代码

<dependencies>
    <!-- https://mvnrepository.com/artifact/org.springframework/spring-core -->
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-core</artifactId>
        <version>5.2.13.RELEASE</version>
    </dependency>
    <!-- https://mvnrepository.com/artifact/org.springframework/spring-beans -->
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-beans</artifactId>
        <version>5.2.13.RELEASE</version>
    </dependency>
    <!-- https://mvnrepository.com/artifact/org.springframework/spring-context -->
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-context</artifactId>
        <version>5.2.13.RELEASE</version>
    </dependency>
    <!-- https://mvnrepository.com/artifact/org.springframework/spring-expression -->
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-expression</artifactId>
        <version>5.2.13.RELEASE</version>
    </dependency>
    <!-- https://mvnrepository.com/artifact/org.springframework/spring-aop -->
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-aop</artifactId>
        <version>5.2.13.RELEASE</version>
    </dependency>
    <!-- https://mvnrepository.com/artifact/org.springframework/spring-jcl -->
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-jcl</artifactId>
        <version>5.2.13.RELEASE</version>
    </dependency>
</dependencies>

2.刷新Maven自动下载

3.在\src\main\resources下创建applicationContext.xml配置文件
输入代码：

<?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:util="http://www.springframework.org/schema/util"
       xsi:schemaLocation="
        http://www.springframework.org/schema/beans
        https://www.springframework.org/schema/beans/spring-beans.xsd
        http://www.springframework.org/schema/util
        https://www.springframework.org/schema/util/spring-util.xsd
       ">

    <!-- bean definitions here -->
    <bean id="UserService" class="services.impl.UserServicelmpl"/>

</beans>

4.刷新
提示：Application context not configured for this file————点Configure application context————ok


测试
接口类


实现类


实现接口并使用快捷键添加接口方法实现

• Alt+Enter打开自动导入框
• 选择第一个自动导入接口方法实现类

测试类

运行结果