Idea创建spring框架入门项目

布满荆棘的人生 2024-04-17 06:25 63阅读 0赞

这里就直接上手记录了：

1.创建一个新项目。

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2NobGVpXw_size_16_color_FFFFFF_t_70][]

2.命名

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2NobGVpXw_size_16_color_FFFFFF_t_70 1][]

初始化界面：

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2NobGVpXw_size_16_color_FFFFFF_t_70 2][]

创建测试类：

1.映射配置方式：

![2019082619411747.png][]

xml文件：

<?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 http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">
            <bean id = "user" class="Test.User"></bean>
    </beans>

User类：

public class User {
        public void add(){
            System.out.println("add.......");
        }
    }

Test类：

public class test {
        public static void main(String[] args) {
            ApplicationContext context = new ClassPathXmlApplicationContext("spring-config.xml");
            User user = (User) context.getBean("user");
            user.add();
        }
    }

结果：

![20190826194229915.png][]

2.注解配置：

注意：未修改的与第一种方法一致。

xml修改：

<?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: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 http://www.springframework.org/schema/context/spring-context.xsd">
            
            <context:component-scan base-package="Test"></context:component-scan>
    </beans>

User注释：

@Component(value = "user")
    public class UserDAO {
        public void add(){
            System.out.println("add.......");
        }
    }

结果：

![20190826200659430.png][]

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2NobGVpXw_size_16_color_FFFFFF_t_70]: https://image.dandelioncloud.cn/pgy_files/images/2024/04/17/88155b45721746b1bd97a7efce4164be.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2NobGVpXw_size_16_color_FFFFFF_t_70 1]: https://image.dandelioncloud.cn/pgy_files/images/2024/04/17/f148bb5032a746b6b8768ae9cd485710.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2NobGVpXw_size_16_color_FFFFFF_t_70 2]: https://image.dandelioncloud.cn/pgy_files/images/2024/04/17/e9963414c0144bdcb507e4e14c2b17ea.png
[2019082619411747.png]: https://image.dandelioncloud.cn/pgy_files/images/2024/04/17/fcdf2fe7371c4f82b765716d7b35c8e3.png
[20190826194229915.png]: https://image.dandelioncloud.cn/pgy_files/images/2024/04/17/5250a1d880c04268853c37e039f9579c.png
[20190826200659430.png]: https://image.dandelioncloud.cn/pgy_files/images/2024/04/17/fcb660a6239b4579bce87798b092699c.png