Spring-IOC容器-Bean管理-基于XML方式超详解

 public class Book { private String bName; private String bAuthor; //创建属性 public void setbName(String bName) { this.bName = bName; } //创建属性对应的 set 方法 public void setbAuthor(String bAuthor) { this.bAuthor = bAuthor; } } 

 public class Order { private String oName; private String address; public Order(String oName, String address) { this.oName = oName; this.address = address; } } 

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 public class UserService {//service类 //创建UserDao类型属性，生成set方法 private UserDao userDao; public void setUserDao(UserDao userDao) { this.userDao = userDao; } public void add() { System.out.println("service add..............."); userDao.update();//调用dao方法 } } public class UserDaoImpl implements UserDao {//dao类 @Override public void update() { System.out.println("dao update..........."); } } 

 //部门类 public class Dept { private String dname; public void setDname(String dname) { this.dname = dname; } } //员工类 public class Emp { private String ename; private String gender; //员工属于某一个部门，使用对象形式表示 private Dept dept; public void setDept(Dept dept) { this.dept = dept; } public void setEname(String ename) { this.ename = ename; } public void setGender(String gender) { this.gender = gender; } } 

 //方式二：生成dept的get方法（get方法必须有！！） public Dept getDept() { return dept; } 

 //（1）创建类，定义数组、list、map、set 类型属性，生成对应 set 方法 public class Stu { //1 数组类型属性 private String[] courses; //2 list集合类型属性 private List list; //3 map集合类型属性 private Map maps; //4 set集合类型属性 private Set sets; public void setSets(Set sets) { this.sets = sets; } public void setCourses(String[] courses) { this.courses = courses; } public void setList(List list) { this.list = list; } public void setMaps(Map maps) { this.maps = maps; } 

    java课程数据库课程  张三小三   MySQLRedis

 //学生所学多门课程 private List courseList;//创建集合 public void setCourseList(List courseList) { this.courseList = courseList; } 

    xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util.xsd">   易筋经九阴真经九阳神功 

 public class MyBean implements FactoryBean { //定义返回bean @Override public Course getObject() throws Exception { Course course = new Course(); course.setCname("abc"); return course; } } 

 @Test public void test3() { ApplicationContext context = new ClassPathXmlApplicationContext("bean3.xml"); Course course = context.getBean("myBean", Course.class);//返回值类型可以不是定义的bean类型！ System.out.println(course); } 

 public class Orders { //无参数构造 public Orders() { System.out.println("第一步---执行无参数构造创建bean实例"); } private String oname; public void setOname(String oname) { this.oname = oname; System.out.println("第二步---调用set方法设置属性值"); } //创建执行的初始化的方法 public void initMethod() { System.out.println("第三步---执行初始化的方法"); } //创建执行的销毁的方法 public void destroyMethod() { System.out.println("第五步---执行销毁的方法"); } } 

 @Test public void test1(){ ApplicationContext context=new ClassPathXmlApplicationContext("bean1.xml"); Orders orders = context.getBean("orders", Orders.class); System.out.println("第四步---获取创建bean实例对象"); System.out.println(orders); ((ClassPathXmlApplicationContext)context).close(); } 

 public class MyBeanPost implements BeanPostProcessor {//创建后置处理器实现类 @Override public Object postProcessBeforeInitialization(Object bean, String beanName) throws BeansException { System.out.println("在初始化之前执行的方法"); return bean; } @Override public Object postProcessAfterInitialization(Object bean, String beanName) throws BeansException { System.out.println("在初始化之后执行的方法"); return bean; } } 

 prop.driverClass=com.mysql.jdbc.Driver prop.url=jdbc:mysql://localhost:3306/userDb prop.userName=root prop.password=root