如何在javafilter中注入service

2024-12-16 12:02:49

推荐回答（1个）

回答1：

在javafilter中注入service方法：
public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException { HttpServletRequest req = (HttpServletRequest)request; HttpServletResponse resp = (HttpServletResponse)response; ServletContext sc = req.getSession().getServletContext();
XmlWebApplicationContext cxt = (XmlWebApplicationContext)WebApplicationContextUtils.getWebApplicationContext(sc);

if(cxt != null && cxt.getBean("usersService") != null && usersService == null)
usersService = (UsersService) cxt.getBean("usersService");

Users users = this.usersService.queryByOpenid(openid);

public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException { HttpServletRequest req = (HttpServletRequest)request; HttpServletResponse resp = (HttpServletResponse)response; ServletContext sc = req.getSession().getServletContext();
XmlWebApplicationContext cxt = (XmlWebApplicationContext)WebApplicationContextUtils.getWebApplicationContext(sc);

if(cxt != null && cxt.getBean("usersService") != null && usersService == null)
usersService = (UsersService) cxt.getBean("usersService");

Users users = this.usersService.queryByOpenid(openid);
public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException { HttpServletRequest req = (HttpServletRequest)request; HttpServletResponse resp = (HttpServletResponse)response; ServletContext sc = req.getSession().getServletContext();
XmlWebApplicationContext cxt = (XmlWebApplicationContext)WebApplicationContextUtils.getWebApplicationContext(sc);

if(cxt != null && cxt.getBean("usersService") != null && usersService == null)
usersService = (UsersService) cxt.getBean("usersService");

Users users = this.usersService.queryByOpenid(openid);