【springboot2 拦截器无效 _springboot 】

springboot2 拦截器无效

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springboot

详细描述

源码

Config:

import com.example.demo.interceptor.OneInterceptor;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.config.annotation.InterceptorRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;

@Configuration
public class InterceptorConfig implements WebMvcConfigurer {

@Override
public void addInterceptors(InterceptorRegistry registry) {
    registry.addInterceptor(new OneInterceptor()).addPathPatterns("/**");
}
}

OneInterceptor:

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Component;
import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.ModelAndView;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

@Component
public class OneInterceptor implements HandlerInterceptor {

private Logger logger = LoggerFactory.getLogger(OneInterceptor.class);

@Override
public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object object) throws Exception {
    logger.debug("拦截。。。");
    return false;
}

@Override
public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView modelAndView) {
    System.err.println("post");
}

@Override
public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) {
    System.err.println("after");
}

编辑于2024-11-22

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[西安|结业弟子]JAVA-白栋
0

代码也没问题呀，不走拦截器，不知道是不是启动器没有扫描到这两个类？因为启动器是扫描所在包的包（是不是绕口。。。），放包外面的话，启动器扫描不到这两个类，spirng容器启动时就不会加载这两个类，自然不会生效。
其次，重构代码可以解决80%的疑难杂症（不要问我怎么知道）

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编辑于2019-07-16

去第页