Java多线程中Spring的Bean注入失败

问题说明 : 

在spring框架进行项目开发，平时遇到了需要批量处理的数据的时候，会选择多线程进行数据批跑，但是会发现，启动多线程后，线程会出现service或者mapper文件注入失败的问题，导致线程启动失败，其中bean的注入方式选择的是spring常规的注解@Autowired进行注入

原因分析 :

web容器在启动应用时，spring容器是无法感知多线程的那些bean的，所以多线程的bean类无法获取spring容器的上下文，并不能通过@Autowired注入需要的bean

解决方案 :

线程中获取bean

import org.springframework.context.ApplicationContext;

public class ServiceFactory {
	public static ApplicationContext context = null;

	public static Object getInstance(String serviceName) {
		if (null == context) {
			context = ApplicationContextLoaderListener.getApplicationContext();
		}
		return context.getBean(serviceName);
	}
}

public class CardThread extends Thread{
	
	@Autowired
	private FinanceCardDoMapper financeCardDoMapper;
	
	private Integer startIndex;
	private Integer endIndex;
	private List<FinanceCardDo> dataList;
	
	public CardThread(Integer startIndex ,Integer endIndex ,List<FinanceCardDo> dataList) {
		super();
		this.startIndex = startIndex; 
		this.endIndex = endIndex; 
		this.dataList = dataList; 
	}
	
	public void run(){
		financeCardDoMapper = (FinanceCardDoMapper)MyBatisConfig.getApplicationContext().getBean(FinanceCardDoMapper.class);
		for (FinanceCardDo financeCardDo : dataList) {
			if (financeCardDo.getIndex() > startIndex && financeCardDo.getIndex() <= endIndex) {
				financeCardDo.setCardNo(DesUtil.encrypt("JzlcDes8",financeCardDo.getCardNo()));
				financeCardDo.setBankMobile(DesUtil.encrypt("JzlcDes8",financeCardDo.getBankMobile()));
				financeCardDoMapper.updateByPrimaryKeySelective(financeCardDo);
				System.out.println("该用户银行卡更新完成：index：" + financeCardDo.getIndex());
			}
		}
	}
}