import
java.util.Map;
import
org.springframework.beans.BeansException;
import
org.springframework.context.ApplicationContext;
import
org.springframework.context.ApplicationContextAware;
/**
*
獲取ApplicationContext和Object的工具類
*
@author wjq
*
*/
@SuppressWarnings
({
"rawtypes"
,
"unchecked"
})
public
class
SpringContextUtils
implements
ApplicationContextAware
{
private
static
ApplicationContext
applicationContext;
public
void
setApplicationContext(ApplicationContext
arg0)
throws
BeansException
{
applicationContext
= arg0;
}
/**
*
獲取applicationContext對象
*
@return
*/
public
static
ApplicationContext
getApplicationContext(){
return
applicationContext;
}
/**
*
根據bean的id來查找對象
*
@param id
*
@return
*/
public
static
Object
getBeanById(String id){
return
applicationContext.getBean(id);
}
/**
*
根據bean的class來查找對象
*
@param c
*
@return
*/
public
static
Object
getBeanByClass(Class c){
return
applicationContext.getBean(c);
}
/**
*
根據bean的class來查找所有的對象(包括子類)
*
@param c
*
@return
*/
public
static
Map
getBeansByClass(Class c){
return
applicationContext.getBeansOfType(c);
}
}
1
|
ApplicationContext
ac = new FileSystemXmlApplicationContext( "applicationContext.xml" ) |
可選的操作方法有:
1
2
3
4
5
6
7
8
9
10
11
|
一: String[]
path={ "WebRoot/WEB-INF/applicationContext.xml" , "WebRoot/WEB-INF/applicationContext_task.xml" }; ApplicationContext
context = new FileSystemXmlApplicationContext(path); 二: String
path= "WebRoot/WEB-INF/applicationContext*.xml" ; ApplicationContext
context = new FileSystemXmlApplicationContext(path); 三: ApplicationContext
ctx = new FileSystemXmlApplicationContext( "classpath:地址" ); |