/* * Copyright 2002-2012 the original author or authors. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://…
一.环境准备 对于学习源码来讲,拿到一大堆的代码,脑袋里肯定是嗡嗡的,所以从代码实例进行跟踪调试未尝不是一种好的办法,此处,我们准备了一个小例子: package com.zjl; public class Person { private String name; public String getName() { return name; } public void setName(String name) { this.name = name; } public void sayHello…
Spring IoC容器的初始化包括 BeanDefinition的Resource定位.载入和注册 这三个基本的过程.IoC容器的初始化过程不包含Bean依赖注入的实现.Bean依赖的注入一般会发生在第一次通过getBean向容器索取Bean的时候. 先看以下代码: ApplicationContext context = new ClassPathXmlApplicationContext("ioc.xml"); Car car = (Car) context.getBean(&q…
In Java, a utility class is a class that defines a set of methods that perform common functions. This post shows the most frequently used Java utility classes and their most commonly used methods. Both the class list and their method list are ordered…
IoC容器是什么?IoC文英全称Inversion of Control,即控制反转,我么可以这么理解IoC容器: 把某些业务对象的的控制权交给一个平台或者框架来同一管理,这个同一管理的平台可以称为IoC容器. 我们刚开始学习spring的时候会经常看到的类似下面的这代码: ApplicationContext appContext = new ClassPathXmlApplicationContext("cjj/models/beans.xml"); Person p = (Per…
