在非controller、service里@Resource注入service为null解决方法

 1 @Component //关键1
 2 public class ArticlesReceiver {
 3  
 4     @Resource
 5     private  WechatArticlesTempService wechatArticlesTempService;
 6      
 7     public static ArticlesReceiver articlesReceiver; //关键2
 8      
 9     @PostConstruct //关键3
10     public void init(){
11     　　　　articlesReceiver = this;
12     }
13          
14     public WechatArticlesTemp getResposeArticlesBoby(String mediaId) {
15 　　　　　　WechatArticlesTemp articlesTemp = articlesReceiver.wechatArticlesTempService.getById(mediaId); //关键4
16 　　　　　　return articlesTemp ;
17     }
18 }   

@Component //关键1
public class ArticlesReceiver {
 
    private static WechatArticlesTempService wechatArticlesTempService; //关键2
 
    @Autowired  //关键3
    public void setWechatArticlesTempService (WechatArticlesTempService wechatArticlesTempService){
          ArticlesReceiver.wechatArticlesTempService = wechatArticlesTempService;
    }
         
    public WechatArticlesTemp getResposeArticlesBoby(String mediaId) {
　　　　　　WechatArticlesTemp articlesTemp = wechatArticlesTempService.getById(mediaId); //关键4
　　　　　　return articlesTemp ;
    }
}

@Component //关键1
public class ArticlesReceiver {
 
    private static WechatArticlesTempService wechatArticlesTempService =  SpringContextHolder.getBean(WechatArticlesTempService.class); //关键2
 
    public WechatArticlesTemp getResposeArticlesBoby(String mediaId) {
　　　　　　WechatArticlesTemp articlesTemp = wechatArticlesTempService.getById(mediaId); //关键3
　　　　　　return articlesTemp ;
    }
}