SpringBoot開發使用@ImportResource注解影響攔截器

問題描述

今天在給SpringBoot項目配置攔截器的時候發現怎么都進不到攔截器的方法里面，在搜索引擎上看了無數篇關於配置攔截器的文章都沒有找到解決方案。

就在我准備放棄的時候，在 CSDN 上發現了一篇文章，說的是SpringBoot 用了@ImportResource 配置的攔截器就不起作用了。於是我就趕緊到Application啟動類看了一眼，果然項目中使用了@ImportResource 注解用於配置系統的參數。

代碼如下：

啟動類配置

package com.xx.xxx;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.builder.SpringApplicationBuilder;
import org.springframework.boot.web.servlet.ServletComponentScan;
import org.springframework.boot.web.support.SpringBootServletInitializer;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.ImportResource;


@EnableDiscoveryClient
@EnableAutoConfiguration(exclude = {DataSourceAutoConfiguration.class,
        ThymeleafAutoConfiguration.class})
@SpringBootApplication
// 注意這里 ！！！！
@ImportResource(locations={"classpath:config/application-*.xml"})
@EnableHystrix
public class Application extends SpringBootServletInitializer {
   
    public static void main(String[] args) {
      SpringApplication.run(Application.class, args);
   }
}

攔截器配置

package com.xx.xxx.config;

import com.example.springbootdemo.Interceptor.LoginInterceptor;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.cache.annotation.EnableCaching;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.ImportResource;
import org.springframework.web.servlet.config.annotation.InterceptorRegistry;
import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter;


@Configuration
public class WebMvcConfig extends WebMvcConfigurerAdapter {

    /**
     * 攔截器(用戶登錄驗證)
     * @param registry
     */
    @Override
    public void addInterceptors(InterceptorRegistry registry) {
        // addPathPatterns 用於添加攔截規則
        // excludePathPatterns 用戶排除攔截
        registry.addInterceptor(new LoginInterceptor()).addPathPatterns("/**").excludePathPatterns("/user","/login");
        super.addInterceptors(registry);
    }
}

攔截器實現

package com.xx.xxx.interceptor;

import org.springframework.stereotype.Component;
import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.ModelAndView;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

public class LoginInterceptor implements HandlerInterceptor {
    
    private final static Logger LOGGER = LoggerFactory.getLogger(LoginInterceptor.class);
    
    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
        LOGGER.info("******進來了******");
        return true;
    }

    @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 {
    }
}

具體為什么使用@ImportResource注解會影響攔截器的配置，如果有機會研究一下源碼或許能夠找到答案。

PS : SpringBoot 版本 1.5.2