Spring内部Bean利用set注入数据实现将DataSource交由Spring管理-----Spring框架

た入场券 2024-03-23 18:09 70阅读 0赞

>     <?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="OrderDao" class="com.powernode.spring6.dao.OrderDao"/>
>         <bean id="OrderService" class="com.powernode.spring6.service.OrderService">
>             
>             <property name="orderDao" ref="OrderDao"/>
>         </bean>
>         <bean id="OS" class="com.powernode.spring6.service.OrderService">
>             <property name="orderDao">
>                 
>                 <bean class="com.powernode.spring6.dao.OrderDao"/>
>             </property>
>         </bean>
>         <bean id="User" class="com.powernode.spring6.Bean.User">
>             
>             <property name="username" value="张三"/>
>             <property name="age" value="20"/>
>             <property name="password" value="123456"/>
>         </bean>
>         <bean id="SimpleValueType" class="com.powernode.spring6.Bean.SimpleValueType">
>             <property name="age" value="20"/>
>             <property name="ages" value="20"/>
>             <property name="username" value="张三"/>
>             <property name="flag" value="false"/>
>             <property name="F" value="false"/>
>             <property name="seasons" value="WINTER"/>
>             <property name="clazz" value="java.lang.String"/>
>             <property name="c" value="男"/>
>             <property name="character" value="女"/>
>             <property name="f" value="true"/>
>             
>             <property name="birthday" value="Fri Aug 04 11:48:02 CST 2023"/>
>         </bean>
>         <bean id="MyDataSource" class="com.powernode.spring6.jdbc.MyDataSource">
>             <property name="driver" value="com.mysql.cj.jdbc.Driver"/>
>             <property name="url" value="jdbc:mysql://localhost:13306/spring6"/>
>             <property name="username" value="root"/>
>             <property name="password" value="abc123"/>
>         </bean>
>     </beans>
> 
>     <?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="OrderDao" class="com.powernode.spring6.dao.OrderDao"/>
>         <bean id="OrderService" class="com.powernode.spring6.service.OrderService">
>             
>             <property name="orderDao" ref="OrderDao"/>
>         </bean>
>         <bean id="OS" class="com.powernode.spring6.service.OrderService">
>             <property name="orderDao">
>                 
>                 <bean class="com.powernode.spring6.dao.OrderDao"/>
>             </property>
>         </bean>
>         <bean id="User" class="com.powernode.spring6.Bean.User">
>             
>             <property name="username" value="张三"/>
>             <property name="age" value="20"/>
>             <property name="password" value="123456"/>
>         </bean>
>         <bean id="SimpleValueType" class="com.powernode.spring6.Bean.SimpleValueType">
>             <property name="age" value="20"/>
>             <property name="ages" value="20"/>
>             <property name="username" value="张三"/>
>             <property name="flag" value="false"/>
>             <property name="F" value="false"/>
>             <property name="seasons" value="WINTER"/>
>             <property name="clazz" value="java.lang.String"/>
>             <property name="c" value="男"/>
>             <property name="character" value="女"/>
>             <property name="f" value="true"/>
>             
>             <property name="birthday" value="Fri Aug 04 11:48:02 CST 2023"/>
>         </bean>
>         <bean id="MyDataSource" class="com.powernode.spring6.jdbc.MyDataSource">
>             <property name="driver" value="com.mysql.cj.jdbc.Driver"/>
>             <property name="url" value="jdbc:mysql://localhost:13306/spring6"/>
>             <property name="username" value="root"/>
>             <property name="password" value="abc123"/>
>         </bean>
>     </beans>

>     package com.powernode.spring6.Bean;
>     
>     public class User
>     {
>         //String是简单类型,int也是简单类型
>         private String username;
>         private int age;
>         private String password;
>         public void setUsername(String username) {
>             this.username = username;
>         }
>         public void setAge(int age) {
>             this.age = age;
>         }
>         public void setPassword(String password) {
>             this.password = password;
>         }
>         @Override
>         public String toString() {
>             return "User{" +
>                     "username='" + username + '\'' +
>                     ", age=" + age +
>                     ", password='" + password + '\'' +
>                     '}';
>         }
>     }
> 
>     package com.powernode.spring6.Bean;
>     
>     public class User
>     {
>         //String是简单类型,int也是简单类型
>         private String username;
>         private int age;
>         private String password;
>         public void setUsername(String username) {
>             this.username = username;
>         }
>         public void setAge(int age) {
>             this.age = age;
>         }
>         public void setPassword(String password) {
>             this.password = password;
>         }
>         @Override
>         public String toString() {
>             return "User{" +
>                     "username='" + username + '\'' +
>                     ", age=" + age +
>                     ", password='" + password + '\'' +
>                     '}';
>         }
>     }

>     package com.powernode.spring6.jdbc;
>     
>     import javax.sql.DataSource;
>     import java.io.PrintWriter;
>     import java.sql.Connection;
>     import java.sql.SQLException;
>     import java.sql.SQLFeatureNotSupportedException;
>     import java.util.logging.Logger;
>     //数据源是用来获取连接对象的,所有的数据源都要实现java规范,javax.sql.DataSource
>     //凡是能提供connection对象的就是数据源
>     public class MyDataSource implements DataSource//把数据源交由Spring管理
>     {
>         private String driver;
>         private String url;
>         private String username;
>         private String password;
>     
>         @Override
>         public String toString() {
>             return "MyDataSource{" +
>                     "driver='" + driver + '\'' +
>                     ", url='" + url + '\'' +
>                     ", username='" + username + '\'' +
>                     ", password='" + password + '\'' +
>                     '}';
>         }
>     
>         public void setDriver(String driver) {
>             this.driver = driver;
>         }
>     
>         public void setUrl(String url) {
>             this.url = url;
>         }
>     
>         public void setUsername(String username) {
>             this.username = username;
>         }
>     
>         public void setPassword(String password) {
>             this.password = password;
>         }
>     
>         //获取数据库连接对象的时候需要4个信息,driver,url,username,password
>         @Override
>         public Connection getConnection() throws SQLException {
>             return null;
>         }
>     
>         @Override
>         public Connection getConnection(String username, String password) throws SQLException {
>             return null;
>         }
>     
>         @Override
>         public PrintWriter getLogWriter() throws SQLException {
>             return null;
>         }
>     
>         @Override
>         public void setLogWriter(PrintWriter out) throws SQLException {
>     
>         }
>     
>         @Override
>         public void setLoginTimeout(int seconds) throws SQLException {
>     
>         }
>     
>         @Override
>         public int getLoginTimeout() throws SQLException {
>             return 0;
>         }
>     
>         @Override
>         public Logger getParentLogger() throws SQLFeatureNotSupportedException {
>             return null;
>         }
>     
>         @Override
>         public <T> T unwrap(Class<T> iface) throws SQLException {
>             return null;
>         }
>     
>         @Override
>         public boolean isWrapperFor(Class<?> iface) throws SQLException {
>             return false;
>         }
>     }
> 
>     package com.powernode.spring6.jdbc;
>     
>     import javax.sql.DataSource;
>     import java.io.PrintWriter;
>     import java.sql.Connection;
>     import java.sql.SQLException;
>     import java.sql.SQLFeatureNotSupportedException;
>     import java.util.logging.Logger;
>     //数据源是用来获取连接对象的,所有的数据源都要实现java规范,javax.sql.DataSource
>     //凡是能提供connection对象的就是数据源
>     public class MyDataSource implements DataSource//把数据源交由Spring管理
>     {
>         private String driver;
>         private String url;
>         private String username;
>         private String password;
>     
>         @Override
>         public String toString() {
>             return "MyDataSource{" +
>                     "driver='" + driver + '\'' +
>                     ", url='" + url + '\'' +
>                     ", username='" + username + '\'' +
>                     ", password='" + password + '\'' +
>                     '}';
>         }
>     
>         public void setDriver(String driver) {
>             this.driver = driver;
>         }
>     
>         public void setUrl(String url) {
>             this.url = url;
>         }
>     
>         public void setUsername(String username) {
>             this.username = username;
>         }
>     
>         public void setPassword(String password) {
>             this.password = password;
>         }
>     
>         //获取数据库连接对象的时候需要4个信息,driver,url,username,password
>         @Override
>         public Connection getConnection() throws SQLException {
>             return null;
>         }
>     
>         @Override
>         public Connection getConnection(String username, String password) throws SQLException {
>             return null;
>         }
>     
>         @Override
>         public PrintWriter getLogWriter() throws SQLException {
>             return null;
>         }
>     
>         @Override
>         public void setLogWriter(PrintWriter out) throws SQLException {
>     
>         }
>     
>         @Override
>         public void setLoginTimeout(int seconds) throws SQLException {
>     
>         }
>     
>         @Override
>         public int getLoginTimeout() throws SQLException {
>             return 0;
>         }
>     
>         @Override
>         public Logger getParentLogger() throws SQLFeatureNotSupportedException {
>             return null;
>         }
>     
>         @Override
>         public <T> T unwrap(Class<T> iface) throws SQLException {
>             return null;
>         }
>     
>         @Override
>         public boolean isWrapperFor(Class<?> iface) throws SQLException {
>             return false;
>         }
>     }

>     package com.powernode.spring6.Bean;
>     
>     import java.util.Date;
>     
>     public class SimpleValueType
>     {
>         private int age;
>         private Integer ages;
>         private boolean flag;
>         private Boolean F;
>         private char c;
>         private Character character;
>         private Seasons seasons;
>         private String username;
>         private Class clazz;
>         private Date birthday;
>     
>         public void setBirthday(Date birthday) {
>             this.birthday = birthday;
>         }
>         @Override
>         public String toString() {
>             return "SimpleValueType{" +
>                     "age=" + age +
>                     ", ages=" + ages +
>                     ", flag=" + flag +
>                     ", F=" + F +
>                     ", c=" + c +
>                     ", character=" + character +
>                     ", seasons=" + seasons +
>                     ", username='" + username + '\'' +
>                     ", clazz=" + clazz +
>                     ", birthday=" + birthday +
>                     '}';
>         }
>         public void setAge(int age) {
>             this.age = age;
>         }
>     
>         public void setAges(Integer ages) {
>             this.ages = ages;
>         }
>     
>         public void setFlag(boolean flag) {
>             this.flag = flag;
>         }
>     
>         public void setF(Boolean f) {
>             F = f;
>         }
>     
>         public void setC(char c) {
>             this.c = c;
>         }
>     
>         public void setCharacter(Character character) {
>             this.character = character;
>         }
>     
>         public void setSeasons(Seasons seasons) {
>             this.seasons = seasons;
>         }
>     
>         public void setUsername(String username) {
>             this.username = username;
>         }
>     
>         public void setClazz(Class clazz) {
>             this.clazz = clazz;
>         }
>     }
> 
>     package com.powernode.spring6.Bean;
>     
>     import java.util.Date;
>     
>     public class SimpleValueType
>     {
>         private int age;
>         private Integer ages;
>         private boolean flag;
>         private Boolean F;
>         private char c;
>         private Character character;
>         private Seasons seasons;
>         private String username;
>         private Class clazz;
>         private Date birthday;
>     
>         public void setBirthday(Date birthday) {
>             this.birthday = birthday;
>         }
>         @Override
>         public String toString() {
>             return "SimpleValueType{" +
>                     "age=" + age +
>                     ", ages=" + ages +
>                     ", flag=" + flag +
>                     ", F=" + F +
>                     ", c=" + c +
>                     ", character=" + character +
>                     ", seasons=" + seasons +
>                     ", username='" + username + '\'' +
>                     ", clazz=" + clazz +
>                     ", birthday=" + birthday +
>                     '}';
>         }
>         public void setAge(int age) {
>             this.age = age;
>         }
>     
>         public void setAges(Integer ages) {
>             this.ages = ages;
>         }
>     
>         public void setFlag(boolean flag) {
>             this.flag = flag;
>         }
>     
>         public void setF(Boolean f) {
>             F = f;
>         }
>     
>         public void setC(char c) {
>             this.c = c;
>         }
>     
>         public void setCharacter(Character character) {
>             this.character = character;
>         }
>     
>         public void setSeasons(Seasons seasons) {
>             this.seasons = seasons;
>         }
>     
>         public void setUsername(String username) {
>             this.username = username;
>         }
>     
>         public void setClazz(Class clazz) {
>             this.clazz = clazz;
>         }
>     }

>     import com.powernode.spring6.Bean.SimpleValueType;
>     import com.powernode.spring6.Bean.User;
>     import com.powernode.spring6.jdbc.MyDataSource;
>     import com.powernode.spring6.service.OrderService;
>     import org.junit.Test;
>     import org.springframework.context.ApplicationContext;
>     import org.springframework.context.support.ClassPathXmlApplicationContext;
>     
>     import java.util.Date;
>     
>     public class SpringDITest
>     {
>         public static void main(String[] args) {
>             System.out.println(new Date());
>         }
>         @Test
>         public void TestSetDI()
>         {
>             ApplicationContext applicationContext = new ClassPathXmlApplicationContext("set-di.xml");
>             OrderService OrderService = applicationContext.getBean("OrderService", OrderService.class);
>             OrderService.generate();
>             OrderService = applicationContext.getBean("OS",OrderService.class);
>             OrderService.generate();
>             User user = applicationContext.getBean("User", User.class);
>             System.out.println(user);
>             SimpleValueType simpleValueType = applicationContext.getBean("SimpleValueType",SimpleValueType.class);
>             System.out.println(simpleValueType);
>             applicationContext = new ClassPathXmlApplicationContext("set-di.xml");
>             MyDataSource MyDataSource = applicationContext.getBean("MyDataSource", MyDataSource.class);
>             System.out.println(MyDataSource);
>         }
>     }
> 
>     import com.powernode.spring6.Bean.SimpleValueType;
>     import com.powernode.spring6.Bean.User;
>     import com.powernode.spring6.jdbc.MyDataSource;
>     import com.powernode.spring6.service.OrderService;
>     import org.junit.Test;
>     import org.springframework.context.ApplicationContext;
>     import org.springframework.context.support.ClassPathXmlApplicationContext;
>     
>     import java.util.Date;
>     
>     public class SpringDITest
>     {
>         public static void main(String[] args) {
>             System.out.println(new Date());
>         }
>         @Test
>         public void TestSetDI()
>         {
>             ApplicationContext applicationContext = new ClassPathXmlApplicationContext("set-di.xml");
>             OrderService OrderService = applicationContext.getBean("OrderService", OrderService.class);
>             OrderService.generate();
>             OrderService = applicationContext.getBean("OS",OrderService.class);
>             OrderService.generate();
>             User user = applicationContext.getBean("User", User.class);
>             System.out.println(user);
>             SimpleValueType simpleValueType = applicationContext.getBean("SimpleValueType",SimpleValueType.class);
>             System.out.println(simpleValueType);
>             applicationContext = new ClassPathXmlApplicationContext("set-di.xml");
>             MyDataSource MyDataSource = applicationContext.getBean("MyDataSource", MyDataSource.class);
>             System.out.println(MyDataSource);
>         }
>     }