1、创立一个Maven构造的利用

IDEA创立我的项目时抉择maven我的项目

2、pom.xml中增加一下依赖
<?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>org.example</groupId>    <artifactId>common</artifactId>    <version>1.0-SNAPSHOT</version>    <dependencies>        <!-- https://mvnrepository.com/artifact/org.springframework/spring-context -->        <dependency>            <groupId>org.springframework</groupId>            <artifactId>spring-context</artifactId>            <version>5.2.10.RELEASE</version>        </dependency>        <!-- https://mvnrepository.com/artifact/org.springframework/spring-jdbc -->        <dependency>            <groupId>org.springframework</groupId>            <artifactId>spring-jdbc</artifactId>            <version>5.2.10.RELEASE</version>        </dependency>        <!-- https://mvnrepository.com/artifact/mysql/mysql-connector-java -->        <dependency>            <groupId>mysql</groupId>            <artifactId>mysql-connector-java</artifactId>            <version>8.0.21</version>        </dependency>        <!-- https://mvnrepository.com/artifact/org.projectlombok/lombok -->        <dependency>            <groupId>org.projectlombok</groupId>            <artifactId>lombok</artifactId>            <version>1.18.12</version>            <scope>provided</scope>        </dependency>    </dependencies>    <build>        <plugins>            <plugin>                <groupId>org.apache.maven.plugins</groupId>                <artifactId>maven-compiler-plugin</artifactId>                <configuration>                    <source>1.8</source>                    <target>1.8</target>                </configuration>            </plugin>        </plugins>    </build></project>
3、创立Spring配置文件service.xml

在这里能够找到Spring官网给的样例。上面是我运行失常的配置。

<?xml version="1.0" encoding="UTF-8"?><!--  ~ Copyright (c) Huawei Technologies Co., Ltd. 2020-2020. All rights reserved.  --><beans xmlns="http://www.springframework.org/schema/beans"       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"       xmlns:context="http://www.springframework.org/schema/context"       xsi:schemaLocation="http://www.springframework.org/schema/beans        http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context https://www.springframework.org/schema/context/spring-context.xsd">    <bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">        <property name="driverClassName" value="com.mysql.cj.jdbc.Driver"/>        <property name="url" value="jdbc:mysql://localhost:3306/mysql?useUnicode=true&amp;characterEncoding=utf-8"/>        <property name="username" value="root"/>        <property name="password" value="root"/>    </bean>    <bean id="jdbcTemplate" class="org.springframework.jdbc.core.JdbcTemplate">        <property name="dataSource" ref="dataSource"/>    </bean>    <context:component-scan base-package="entity"/></beans>
4、编写须要Spring治理的Bean和main办法

治理的Bean这里就省略了，main办法代码如下：

import entity.User;import org.springframework.context.ApplicationContext;import org.springframework.context.support.ClassPathXmlApplicationContext;public class Main { public static void main(String[] args) { ApplicationContext context = new ClassPathXmlApplicationContext("service.xml");        User user = (User) context.getBean("user");        System.out.println(user.getName());    }}