初步提交

.idea/.gitignore

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+# Default ignored files
+/shelf/
+/workspace.xml
+# Editor-based HTTP Client requests
+/httpRequests/
+# Datasource local storage ignored files
+/dataSources/
+/dataSources.local.xml

.idea/compiler.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="CompilerConfiguration">
+    <annotationProcessing>
+      <profile name="Maven default annotation processors profile" enabled="true">
+        <sourceOutputDir name="target/generated-sources/annotations" />
+        <sourceTestOutputDir name="target/generated-test-sources/test-annotations" />
+        <outputRelativeToContentRoot value="true" />
+        <module name="springLearn202503" />
+      </profile>
+    </annotationProcessing>
+  </component>
+</project>

.idea/encodings.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="Encoding">
+    <file url="file://$PROJECT_DIR$/springLearn202503/src/main/java" charset="UTF-8" />
+    <file url="file://$PROJECT_DIR$/springLearn202503/src/main/resources" charset="UTF-8" />
+  </component>
+</project>

.idea/jarRepositories.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="RemoteRepositoriesConfiguration">
+    <remote-repository>
+      <option name="id" value="central" />
+      <option name="name" value="Central Repository" />
+      <option name="url" value="https://repo.maven.apache.org/maven2" />
+    </remote-repository>
+    <remote-repository>
+      <option name="id" value="central" />
+      <option name="name" value="Maven Central repository" />
+      <option name="url" value="https://repo1.maven.org/maven2" />
+    </remote-repository>
+    <remote-repository>
+      <option name="id" value="jboss.community" />
+      <option name="name" value="JBoss Community repository" />
+      <option name="url" value="https://repository.jboss.org/nexus/content/repositories/public/" />
+    </remote-repository>
+  </component>
+</project>

.idea/misc.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ExternalStorageConfigurationManager" enabled="true" />
+  <component name="MavenProjectsManager">
+    <option name="originalFiles">
+      <list>
+        <option value="$PROJECT_DIR$/springLearn202503/pom.xml" />
+      </list>
+    </option>
+  </component>
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_1_8" default="true" project-jdk-name="1.8" project-jdk-type="JavaSDK">
+    <output url="file://$PROJECT_DIR$/out" />
+  </component>
+</project>

.idea/modules.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectModuleManager">
+    <modules>
+      <module fileurl="file://$PROJECT_DIR$/.idea/spring20250421.iml" filepath="$PROJECT_DIR$/.idea/spring20250421.iml" />
+    </modules>
+  </component>
+</project>

.idea/spring20250421.iml

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+<?xml version="1.0" encoding="UTF-8"?>
+<module type="JAVA_MODULE" version="4">
+  <component name="NewModuleRootManager" inherit-compiler-output="true">
+    <exclude-output />
+    <content url="file://$MODULE_DIR$" />
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+  </component>
+</module>

.idea/vcs.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="" vcs="Git" />
+  </component>
+</project>

springLearn202503/pom.xml

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+<?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.sec</groupId>
+    <artifactId>springLearn202503</artifactId>
+    <version>1.0-SNAPSHOT</version>
+
+    <properties>
+        <maven.compiler.source>8</maven.compiler.source>
+        <maven.compiler.target>8</maven.compiler.target>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+    </properties>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.springframework</groupId>
+            <artifactId>spring-context</artifactId>
+            <version>5.3.21</version>
+        </dependency>
+        <dependency>
+            <groupId>junit</groupId>
+            <artifactId>junit</artifactId>
+            <version>4.13.2</version>
+            <!--            <scope>test</scope>-->
+        </dependency>
+        <dependency>
+            <groupId>mysql</groupId>
+            <artifactId>mysql-connector-java</artifactId>
+            <version>8.0.23</version>
+        </dependency>
+        <dependency>
+            <groupId>com.alibaba</groupId>
+            <artifactId>druid</artifactId>
+            <version>1.1.22</version>
+        </dependency>
+        <dependency>
+            <groupId>com.mchange</groupId>
+            <artifactId>c3p0</artifactId>
+            <version>0.9.5.4</version>
+        </dependency>
+    </dependencies>
+</project>

springLearn202503/src/main/java/com/sec/Main.java

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+package com.sec;
+
+import com.alibaba.druid.pool.DruidDataSource;
+import com.alibaba.druid.pool.DruidPooledConnection;
+import com.mchange.v2.c3p0.ComboPooledDataSource;
+import com.sec.dao.UserDao;
+import org.springframework.context.support.ClassPathXmlApplicationContext;
+
+import java.beans.PropertyVetoException;
+import java.sql.*;
+
+//TIP To <b>Run</b> code, press <shortcut actionId="Run"/> or
+// click the <icon src="AllIcons.Actions.Execute"/> icon in the gutter.
+public class Main {
+    public static void main(String[] args) {
+//        ApplicationContext application=new ClassPathXmlApplicationContext("application.xml");
+        ClassPathXmlApplicationContext application=new ClassPathXmlApplicationContext("application.xml");
+        UserDao userDao1 = (UserDao)application.getBean("UserDao");
+//        UserDao userDao2 = (UserDao)application.getBean("UserDao");
+        System.out.println(userDao1);
+        application.close();
+//        System.out.println(userDao2);
+
+//        userDao.getData();
+        DruidDataSource druidDataSource=new DruidDataSource();
+        druidDataSource.setDriverClassName("com.mysql.jdbc.Driver");
+        druidDataSource.setUrl("jdbc:mysql://47.103.155.22:3306/learn_spring");
+        druidDataSource.setUsername("root");
+        druidDataSource.setPassword("mysql_wafeYX");
+
+        try {
+            DruidPooledConnection connection = druidDataSource.getConnection();
+            PreparedStatement preparedStatement = connection.prepareStatement(" select * from user_info ");
+            ResultSet resultSet = preparedStatement.executeQuery();
+            while (resultSet.next()) {
+                System.out.println(resultSet.getString("user_name")+" "+resultSet.getString("account_name"));
+//                System.out.println(resultSet.getString("account_name"));
+            }
+            resultSet.close();
+            preparedStatement.close();
+            connection.close();
+        } catch (SQLException e) {
+            throw new RuntimeException(e);
+        }
+        ComboPooledDataSource comboPooledDataSource=new ComboPooledDataSource();
+        try {
+            comboPooledDataSource.setDriverClass("com.mysql.jdbc.Driver");
+            comboPooledDataSource.setJdbcUrl("jdbc:mysql://47.103.155.22:3306/learn_spring");
+            comboPooledDataSource.setUser("root");
+            comboPooledDataSource.setPassword("mysql_wafeYX");
+
+            Connection connection = comboPooledDataSource.getConnection();
+            Statement statement = connection.createStatement();
+            ResultSet resultSet = statement.executeQuery("select * from user_info ");
+            while (resultSet.next()) {
+                System.out.println(resultSet.getString("user_name"));
+            }
+            statement.close();
+            connection.close();
+        } catch (PropertyVetoException | SQLException e) {
+            throw new RuntimeException(e);
+        }
+
+    }
+}

springLearn202503/src/main/java/com/sec/dao/UserDao.java

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+package com.sec.dao;
+
+public interface UserDao {
+    public void getData();
+}

springLearn202503/src/main/java/com/sec/dao/impl/UserDaoImpl.java

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+package com.sec.dao.impl;
+
+import com.sec.dao.UserDao;
+
+public class UserDaoImpl implements UserDao {
+
+    public UserDaoImpl(){
+        System.out.println("无参构造");
+    }
+
+    public void  init(){
+        System.out.println("初始化方法");
+    }
+
+    public void destroy(){
+        System.out.println("销毁方法");
+    }
+
+    @Override
+    public void getData() {
+        System.out.println("hello user!!!");
+    }
+}

springLearn202503/src/main/java/com/sec/factroy/DemoFactroy.java

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+package com.sec.factroy;
+
+import com.sec.dao.UserDao;
+import com.sec.dao.impl.UserDaoImpl;
+
+public class DemoFactroy
+{
+    public UserDao getDao(){
+        return new UserDaoImpl();
+    }
+}

springLearn202503/src/main/java/com/sec/factroy/StaticFactroy.java

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+package com.sec.factroy;
+
+import com.sec.dao.UserDao;
+import com.sec.dao.impl.UserDaoImpl;
+
+public class StaticFactroy {
+    public static UserDao getUserDao() {
+        return new UserDaoImpl();
+    }
+}

springLearn202503/src/main/resources/application.xml

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+<?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">
+<!--    <bean id="UserDao" class="com.impl.dao.com.sec.UserDaoImpl" scope="singleton" init-method="init" destroy-method="destroy"></bean>-->
+<!--    <bean id="UserDao" class="com.factroy.com.sec.StaticFactroy" factory-method="getUserDao"></bean>-->
+    <bean id="DemoFactroy" class="com.sec.factroy.DemoFactroy"></bean>
+    <bean id="UserDao" factory-bean="DemoFactroy" factory-method="getDao"></bean>
+</beans>

springLearn202503/target/classes/application.xml

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+<?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">
+<!--    <bean id="UserDao" class="com.impl.dao.com.sec.UserDaoImpl" scope="singleton" init-method="init" destroy-method="destroy"></bean>-->
+<!--    <bean id="UserDao" class="com.factroy.com.sec.StaticFactroy" factory-method="getUserDao"></bean>-->
+    <bean id="DemoFactroy" class="com.sec.factroy.DemoFactroy"></bean>
+    <bean id="UserDao" factory-bean="DemoFactroy" factory-method="getDao"></bean>
+</beans>