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1.拦截器
SpringMvc中的拦截器实现了HandlerInterceptor接口,通常使用与身份认证,授权和校验,模板视图,统一处理等;
public class HanderInterceptor1 implements HandlerInterceptor {
@Override
public void afterCompletion(HttpServletRequest arg0,
HttpServletResponse arg1, Object arg2, Exception arg3)
throws Exception {
}
@Override
public void postHandle(HttpServletRequest arg0, HttpServletResponse arg1,
Object arg2, ModelAndView arg3) throws Exception {
}
@Override
public boolean preHandle(HttpServletRequest arg0, HttpServletResponse arg1,
Object arg2) throws Exception {
return true;
}
}