spring boot 使用拦截器
1.创建拦截器类，继承HandlerInterceptor
2.注册拦截器，指定拦截规则
spring framework 中的拦截器类需要继承与HandlerInterceptor,spring boot也是一致的
package com.tons.intercept;
import lombok.extern.slf4j.Slf4j;
import org.springframework.web.servlet.HandlerInterceptor;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
@Slf4j
public class RecordIntercept implements HandlerInterceptor {
/*
request 请求对象
response 响应对象
handler 请求处理器，可以强转成HandlerMethod使用（可获取处理方法的相关信息）。
*/
@Override
public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
// 获取路由
String remoteAddr = request.getRemoteAddr();
// 获取访问路径 http:localhost:80/ 后面的url部分
String url = request.getRequestURI();
// 打印
log.debug("{}访问了[{}]",remoteAddr,url);
// 返回true 放行,false不放行
return true;
}
}
注册拦截器，指定拦截规则
package com.tons.config;
import com.tons.intercept.PowerIntercept;
import com.tons.intercept.RecordIntercept;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.config.annotation.InterceptorRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
import java.util.Arrays;
import java.util.List;
/**
* 配置拦截器
*/
@Configuration
public class InterceptConfig implements WebMvcConfigurer {
private static final List<String> STATIC_PATH = Arrays.asList("/","/index","/css/**","/js/**","/img/**","/media/**","/vendors/**","/element-ui/**","/temp/**","/public/**","/json/**","/favicon.ico","/error");
/**
* 配置拦截器
* @param registry 拦截器
*/
@Override
public void addInterceptors(InterceptorRegistry registry) {
WebMvcConfigurer.super.addInterceptors(registry);
//addPathPatterns 拦截路径
//excludePathPatterns 不拦截路径
// /**代表当前目录下所有资源(包含其内部子资源)
registry.addInterceptor(new RecordIntercept()).addPathPatterns("/**").excludePathPatterns(STATIC_PATH);
}
}