springboot实现拦截器
解决方法：
1.拦截器
import org.springframework.boot.web.servlet.FilterRegistrationBean;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.http.HttpHeaders;
import org.springframework.http.HttpMethod;
import org.springframework.web.cors.UrlBasedCorsConfigurationSource;
import org.springframework.web.filter.CorsFilter;
import org.springframework.web.servlet.config.annotation.InterceptorRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
import com.jc.admin.common.interceptor.UserInterceptorConfig;
@Configuration
public class WebAppConfig implements WebMvcConfigurer {
@Override
public void addInterceptors(InterceptorRegistry registry) {
// 注册自定义拦截器，添加拦截路径和排除拦截路径，表示/api/开头的请求都会拦截到UserInterceptorConfig的preHandle方法中
registry.addInterceptor(new UserInterceptorConfig()).addPathPatterns("/api/**");
}
}
2.拦截器业务类
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.BeanFactory;
import org.springframework.web.context.support.WebApplicationContextUtils;
import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.ModelAndView;
import com.alibaba.fastjson.JSONObject;
/**
* 拦截过滤
*/
public class UserInterceptorConfig implements HandlerInterceptor {
private static Logger logger = LoggerFactory.getLogger(UserInterceptorConfig.class);
@Override
public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler)
throws Exception {
//权限控制代码，return true可以请求
return false;
}
@Override
public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler,
ModelAndView modelAndView) throws Exception {
}
@Override
public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex)
throws Exception {
}
}