【配置】SpringBoot2.3.0添加拦截器并排除静态资源

• 前言： springboot版本：2.3.0
• thymeleaf版本：3.0.11
• Jq和Bootstrap用的webjars

• 实现HandlerInterceptor接口

  package com.live.config;
  
  import org.springframework.util.StringUtils;
  import org.springframework.web.servlet.HandlerInterceptor;
  
  import javax.servlet.http.HttpServletRequest;
  import javax.servlet.http.HttpServletResponse;
  
  public class MyHandlerInterceptor implements HandlerInterceptor {
  @Override
  public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
  //测试所用 *_*
  String login_user = (String) request.getSession().getAttribute("login_user");
  if (!StringUtils.isEmpty(login_user) &&login_user.equals("admin")) {
  return true;
  } else {
  response.sendRedirect("index");
  return false;
  }
  }
  }

• 添加拦截器

  需要排除掉静态资源

• 直接写static目录下的xxx文件，如：

  /asserts/**

  ；

• 如果写

  /static/

  **
  会有以下问题
• 资源被解释为 样式表，但使用 MIME 类型 text/plain 进行了传输

/webjars/**

package com.live.config;

import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.config.annotation.InterceptorRegistry;
import org.springframework.web.servlet.config.annotation.ViewControllerRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;

@Configuration
public class MyViewConfig implements WebMvcConfigurer {
@Override
public void addInterceptors(InterceptorRegistry registry) {
registry.addInterceptor(new MyHandlerInterceptor())
.addPathPatterns("/**")
.excludePathPatterns("/login","/"
,"/asserts/**","/webjars/**");
}
}

完！