【文件属性】：
文件名称：Spring原理模拟代码
文件大小：155KB
文件格式：ZIP
更新时间：2014-12-16 17:36:48
Spring,IOC控制反转
package com.ohc.spring;
import java.lang.reflect.Method;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.jdom.Document;
import org.jdom.Element;
import org.jdom.input.SAXBuilder;
public class ClassPathXmlApplicationContext implements BeanFactory {
private Map beans = new HashMap();
@SuppressWarnings("unchecked")
public ClassPathXmlApplicationContext() throws Exception {
SAXBuilder sb = new SAXBuilder();
Document doc = sb.build(this.getClass().getClassLoader()
.getResourceAsStream("beans.xml"));
Element root = doc.getRootElement();// 获取根元素
List list = root.getChildren("bean");// 获取名字为bean的所有元素
for (int i = 0; i < list.size(); i++) {
Element element = (Element) list.get(i);
String id = element.getAttributeValue("id");
String clazz = element.getAttributeValue("class");
Object o = Class.forName(clazz).newInstance();
beans.put(id, o);
for (Element propertyElement : (List) element
.getChildren("property")) {
String name = propertyElement.getAttributeValue("name");
String bean = propertyElement.getAttributeValue("bean");
Object beanObject = beans.get(bean);
String methodName = "set" + name.substring(0, 1).toUpperCase()
+ name.substring(1);
Method m = o.getClass().getMethod(methodName,
beanObject.getClass().getInterfaces()[0]);
m.invoke(o, beanObject);
}
}
}
@Override
public Object getBean(String name) {
return beans.get(name);
}
}
【文件预览】：
SpringPrinciple
----bin()
--------beans.xml(184B)
--------com()
----test()
--------com()
----.settings()
--------org.eclipse.jdt.core.prefs(629B)
----src()
--------beans.xml(184B)
--------com()
----.project(391B)
----.classpath(479B)
----lib()
--------jdom-1.1.2.jar(149KB)
