标签：class servlet 添加 ring .com let auto exce user
我在拦截器中想自动注入一个对象的时候发现无法注入，获取到的一直是null
public class RestInterceptor implements HandlerInterceptor {
@Autowired
private EscUserMapper escUserMapper;
@Override
public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws BaseAppException {
return true;
}
@Override
public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler,
ModelAndView modelAndView) throws BaseAppException {
// TODO Auto-generated method stub
}
@Override
public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex)
throws BaseAppException {
// TODO Auto-generated method stub
}
}
解决办法：
在Spring添加拦截器之前先自己创建一下这个Spring Bean，这样就能在Spring映射这个拦截器前自动注入对象了。
@Configuration
public class RestWebAppConfigurer extends WebMvcConfigurerAdapter {
@Bean
public RestInterceptor restInterceptor() {
return new RestInterceptor();
}
public void addInterceptors(InterceptorRegistry registry) {
registry.addInterceptor(restInterceptor()).addPathPatterns("/iot/**");
super.addInterceptors(registry);
}
}
参考文档：http://www.cnblogs.com/niceboat/p/6958895.html
标签：class servlet 添加 ring .com let auto exce user
原文地址：http://www.cnblogs.com/luoluocaihong/p/7347653.html
