详解SpringBoot开发使用@ImportResource注解影响 *

问题描述

今天在给SpringBoot项目配置 * 的时候发现怎么都进不到 * 的方法里面，在搜索引擎上看了无数篇关于配置 * 的文章都没有找到解决方案。

就在我准备放弃的时候，在 CSDN 上发现了一篇文章，说的是SpringBoot 用了@ImportResource 配置的 * 就不起作用了。于是我就赶紧到Application启动类看了一眼，果然项目中使用了@ImportResource 注解用于配置系统的参数。

代码如下：

启动类配置

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
// 注意这里 ！！！！
@ImportResource(locations={"classpath:config/application-*.xml"})
@EnableHystrix
public class Application extends SpringBootServletInitializer {

public static void main(String[] args) {
  SpringApplication.run(Application.class, args);
 }
}

* 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 {

/**
  * * (用户登录验证)
  * @param registry
  */
 @Override
 public void addInterceptors(InterceptorRegistry registry) {
   // addPathPatterns 用于添加拦截规则
   // excludePathPatterns 用户排除拦截
   registry.addInterceptor(new LoginInterceptor()).addPathPatterns("/**").excludePathPatterns("/user","/login");
   super.addInterceptors(registry);
 }
}

* 实现

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("******进来了******");
   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 {
 }
}

具体为什么使用@ImportResource注解会影响 * 的配置，如果有机会研究一下源码或许能够找到答案。

PS : SpringBoot 版本 1.5.2

来源：https://www.cnblogs.com/yuansc/p/9077509.html