Spring核心原理-bean 按名称自动装配

按名称自动装配示例

Bean 定义

<?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-3.0.xsd
  http://www.springframework.org/schema/context/
  http://www.springframework.org/schema/context/spring-context-3.0.xsd">
 
    <context:component-scan base-package="com.xqlee" />    
     
   <bean id="employee" class="com.xqlee.demo.beans.EmployeeBean" autowire="byName">
        <property name="fullName" value="Lokesh Gupta"/>
    </bean>
   
    <bean id="departmentBean" class="com.xqlee.demo.beans.DepartmentBean" >
        <property name="name" value="Human Resource" />
    </bean>
     
</beans>

使用 autowire="byName" 按名称自动装配依赖

public class EmployeeBean
{
    private String fullName;
      
    private DepartmentBean departmentBean;
  
    public DepartmentBean getDepartmentBean() {
        return departmentBean;
    }
  
    public void setDepartmentBean(DepartmentBean departmentBean) {
        this.departmentBean = departmentBean;
    }
  
    public String getFullName() {
        return fullName;
    }
  
    public void setFullName(String fullName) {
        this.fullName = fullName;
    }
}

public class DepartmentBean {
  private String name;
    public String getName() {
        return name;
    }
    public void setName(String name) {
        this.name = name;
    }
}

演示

import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
 
import com.howtodoinjava.demo.beans.EmployeeBean;
 
public class TestAutowire  {
  public static void main(String[] args) {
 
        ApplicationContext context =
                  new ClassPathXmlApplicationContext(new String[] {"application-context.xml"});
           
        EmployeeBean employee = (EmployeeBean) context.getBean ("employee");
 
        System.out.println(employee.getFullName());
 
        System.out.println(employee.getDepartmentBean().getName());
    }
}
 

Lokesh Gupta
Human Resource

spring核心原理 byName装载bean spring按名称装载

http://blog.xqlee.com/article/996.html