使用构造方法注入和setter注入的配置文件

ゞ浴缸里的玫瑰 2023-08-17 16:04 120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"
        xmlns:context="http://www.springframework.org/schema/context"
        xmlns:jdbc="http://www.springframework.org/schema/jdbc"
        xmlns:jee="http://www.springframework.org/schema/jee"
        xmlns:tx="http://www.springframework.org/schema/tx"
        xmlns:aop="http://www.springframework.org/schema/aop"
        xmlns:mvc="http://www.springframework.org/schema/mvc"
        xmlns:util="http://www.springframework.org/schema/util"
        xmlns:jpa="http://www.springframework.org/schema/data/jpa"
        xsi:schemaLocation="
            http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.2.xsd
            http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.2.xsd
            http://www.springframework.org/schema/jdbc http://www.springframework.org/schema/jdbc/spring-jdbc-3.2.xsd
            http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee-3.2.xsd
            http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.2.xsd
            http://www.springframework.org/schema/data/jpa http://www.springframework.org/schema/data/jpa/spring-jpa-1.3.xsd
            http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.2.xsd
            http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd
            http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-3.2.xsd">
    
        <bean id="test" class="dao.TestDaoImpl" />
    
        
        <bean id="myTestDao" class="dao.TestDaoImpl"></bean>
        
        <bean id="diService" class="service.DIServiceImpl">
            
            <constructor-arg index="0" ref="myTestDao" />
        </bean>
    
        
        <bean id="testDIService1" class="service.DIServiceImpl1">
            
            <property name="iTestDao" ref="myTestDao" />
        </bean>
    
    </beans>

构造方法实现类：

package service;
    /**
     * IDIService接口的实现类
     *
     * Title: DIServiceImpl
     *
     * Description: 
     *
     * @author Ethan
     *
     * @date 2019年6月25日
     *
     */
    
    import dao.ITestDao;
    
    public class DIServiceImpl implements IDIService{
        private ITestDao iTestDao;
        //构造方法，用于实现依赖注入接口对象iTestDao
        public DIServiceImpl(ITestDao iTestDao) {
            super();
            this.iTestDao = iTestDao;
        }
        public void sayHello() {
            //调用iTestDao中的sayHello方法
            iTestDao.sayHello();
            System.out.println("IDIService构造方法注入");
        }
        
    }

setter方式实现类：

package service;
    
    import dao.ITestDao;
    
    public class DIServiceImpl1 implements IDIService{
        private ITestDao iTestDao;
        //添加iTestDao的setter方法，用于实现依赖注入
    
        public ITestDao getiTestDao() {
            return iTestDao;
        }
    
        public void setiTestDao(ITestDao iTestDao) {
            this.iTestDao = iTestDao;
        }
    
        public void sayHello() {
            // TODO Auto-generated method stub
            //调用iTestDao中的sayHello方法
            iTestDao.sayHello();
            System.out.println("TestDaoImpl setter方法注入");
        }
        
        
    }

测试类：

package test;
    
    import org.junit.Test;
    import org.springframework.context.ApplicationContext;
    import org.springframework.context.support.ClassPathXmlApplicationContext;
    
    import service.IDIService;
    
    public class Tests2 {
        
        /**
         * 构造方法注入测试类
         *
         * Title: Test1
         *
         * Description: 
         * 
         *
         */
        @Test
        public void Test1() {
            ApplicationContext appCon = new ClassPathXmlApplicationContext("applicationContext.xml");
            IDIService ts = (IDIService) appCon.getBean("diService");
            ts.sayHello();
        }
        
        /**
         * 使用setter方式注入测试类
         *
         * Title: Test2
         *
         * Description: 
         * 
         *
         */
        @Test
        public void Test2() {
            ApplicationContext appCon = new ClassPathXmlApplicationContext("applicationContext.xml");
            IDIService ts = (IDIService) appCon.getBean("testDIService1");
            ts.sayHello();
        }
    }

转载于:https://www.cnblogs.com/WaterGe/p/11267164.html