Springboot框架——3.整合SpringMVC

1.修改端口号：

在application.properties中添加如下配置即可：

server.port=8088

2.静态资源访问：

首先打开ResourceProperties这个类的源码：

将静态资源放到类中默认位置即可实现访问：

http://localhost:8088/erth.jpg

3.拦截器：

先定义个拦截器：

package com.lxj.interceptor;

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

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


public class LoginInterceptor implements HandlerInterceptor {

    private Logger logger=LoggerFactory.getLogger(LoginInterceptor.class);
    @Override
    public boolean preHandle(HttpServletRequest request,HttpServletResponse response,Object handler){
        logger.debug("执行前！");
        return true;
    }

    @Override
    public void postHandle(HttpServletRequest request,HttpServletResponse response,Object handler,ModelAndView modelAndView){
        logger.debug("执行后！");
    }

    @Override
    public void afterCompletion(HttpServletRequest request,HttpServletResponse response,Object handler,Exception ex){
        logger.debug("跳转后！");
    }

    /*
     * 这里注意日志级别，默认显示info以上级别，如果显示更低级别需要在配置文件中配置 logging.level.com.lxj=debug */
}

然后通过实现WebMvcConfigure并添加@Configuration注解来实现自定义拦截器：

package com.lxj.config;

import com.lxj.interceptor.LoginInterceptor;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.config.annotation.InterceptorRegistration;
import org.springframework.web.servlet.config.annotation.InterceptorRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;

@Configuration
public class MvcConfig implements WebMvcConfigurer {
    @Bean  //将LoginInterceptor拦截器注入到spring容器中
    public LoginInterceptor loginInterceptor(){
        return new LoginInterceptor();
    }

    @Override //重写接口方法，添加自定义拦截器
    public void addInterceptors(InterceptorRegistry registry){
        // registry注册拦截器
        // addPathPatterns添加拦截路径：
        //  '?'  匹配任何单字符
        //  '*'  匹配0或者任意数量字符
        //  '**' 匹配0或者更多目录
        registry.addInterceptor(this.loginInterceptor()).addPathPatterns("/**");
    }

}