相比springmvc，springboot中拦截器不需要在xml中配置，只需定义拦截器类 implements HandlerInterceptor
和拦截器拦截路径的配置类extends WebMvcConfigurerAdapter
1.SessionInterceptor
package com.example.demo; import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.ModelAndView; import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse; /**
* Created by 20160216 on 2018/2/8.
*/
public class SessionInterceptor implements HandlerInterceptor
{
@Override
public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object o) throws Exception {
System.out.println("uri="+request.getRequestURI());
//登录不做拦截
if(request.getRequestURI().equals("/userbg/login") || request.getRequestURI().equals("/user/login_view"))
{
return true;
}
//验证session是否存在
Object obj = request.getSession().getAttribute("_session_user");
if(obj == null)
{
response.sendRedirect("/user/login_view");
return false;
}
return true;
} @Override
public void postHandle(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse, Object o, ModelAndView modelAndView) throws Exception { } @Override
public void afterCompletion(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse, Object o, Exception e) throws Exception { }
}
2.SessionConfiguration
package com.example.demo; import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.config.annotation.InterceptorRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter; /**
* Created by 20160216 on 2018/2/8.
*/
@Configuration
public class SessionConfiguration extends WebMvcConfigurerAdapter
{
@Override
public void addInterceptors(InterceptorRegistry registry) {
registry.addInterceptor(new SessionInterceptor()).addPathPatterns("/**");
}
}