spring MVC 普通类引用service

帮助类

package com.cn.socialPlatform.util;

import org.springframework.context.ApplicationContext;

import org.springframework.context.ApplicationContextAware;

/**

 * <p>类描述 :以静态变量保存Spring ApplicationContext, 可在任何代码任何地方任何时候中取出ApplicaitonContext.</p>

 * @version 1.0.0

 * @author shalei</a>

 */

public class SpringContextHolder implements ApplicationContextAware {

private  static ApplicationContext applicationContext;

/**
* 实现ApplicationContextAware接口的context注入函数, 将其存入静态变量.
*/
public synchronized void setApplicationContext(ApplicationContext applicationContext) {
//当前方法加入;synchronized,解决findbugs扫描出的问题
System.out.println("====SpringContextHolder==========setApplicationContext=========");
SpringContextHolder.applicationContext = applicationContext;
}

/**
* 取得存储在静态变量中的ApplicationContext.
*/
public static ApplicationContext getApplicationContext() {
checkApplicationContext();
return applicationContext;
}

/**
* 从静态变量ApplicationContext中取得Bean, 自动转型为所赋值对象的类型.
*/
@SuppressWarnings("unchecked")
public static <T> T getBean(String name) {
checkApplicationContext();
return (T) applicationContext.getBean(name);
}

/**
* 从静态变量ApplicationContext中取得Bean, 自动转型为所赋值对象的类型.
*/
@SuppressWarnings("unchecked")
public static <T> T getBean(Class<T> clazz) {
checkApplicationContext();
return (T) applicationContext.getBeansOfType(clazz);
}

private static void checkApplicationContext() {
if (applicationContext == null) {
throw new IllegalStateException("applicaitonContext未注入,请在applicationContext.xml中定义SpringContextHolder");
}
}

}

spring-mybatis.xml  配置文件中添加

<!-- SpringContextHandler定义 -->
<bean class="com.lzjs.jup.SpringContextHolder" lazy-init="false"/>

在需要使用service的类里就可以调用了

WjMtTradeAreaServiceImpl wjMtTradeAreaService = (WjMtTradeAreaServiceImpl)SpringContextHolder.getApplicationContext().getBean("wjMtTradeAreaServiceImpl");