【Spring】【3】处理filter不能利用spring注入
前言:filter里面需要查询数据库,于是注入了service类,但是发现根本注入不了
正文:
解决方法:主要就是init()部分代码
public class AppFilter implements Filter { private AkskService akskService;//这个就是需要注入的service public void destroy() { } public void doFilter(ServletRequest servletReq, ServletResponse servletRes, FilterChain chain) throws IOException, ServletException { HttpServletRequest request = (HttpServletRequest) servletReq; HttpServletResponse response = (HttpServletResponse) servletRes; } public void init(FilterConfig config) throws ServletException { ServletContext context = config.getServletContext(); //这里获取applicationContext ApplicationContext ctx = WebApplicationContextUtils.getWebApplicationContext(context); akskService = (AkskService) ctx.getBean(AkskService.class); } }
参考博客:
filter不能利用spring注入怎么办? - Blitz_Man - CSDN博客
https://blog.csdn.net/xiakepan/article/details/49074023