Springboot登录拦截器

Springboot登录拦截器 和 swagger框架接口自动生成html文档

使用开发工具：IDEA

实现步骤如下

1.需导入的依赖如下：

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-thymeleaf</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
       
        <!--swagger api 依赖 -->
        <dependency>
            <groupId>io.springfox</groupId>
            <artifactId>springfox-swagger2</artifactId>
            <version>2.9.2</version>
        </dependency>

        <dependency>
            <groupId>io.springfox</groupId>
            <artifactId>springfox-swagger-ui</artifactId>
            <version>2.9.2</version>
        </dependency>


        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
            <exclusions>
                <exclusion>
                    <groupId>org.junit.vintage</groupId>
                    <artifactId>junit-vintage-engine</artifactId>
                </exclusion>
            </exclusions>
        </dependency>
    </dependencies>

2.登录拦截器类

package com.ckf.springbootinterceptor.config; import org.springframework.web.servlet.HandlerInterceptor; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import javax.servlet.http.HttpSession; import java.util.ArrayList; import java.util.List; /** * 登录拦截器 */
public class LoginInterceptor implements HandlerInterceptor { /** * 用于存储排除拦截的url （登录/login.html, /css,/js,/img） */
    private List<String> urls = new ArrayList<String>(); /** * 进入控制器之前拦截 */ @Override public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception { HttpSession session = request.getSession(); if (session.getAttribute("admin") != null) { //已登录，放行。。
            return true; } else { System.out.println("你还没登录，没有权限"); /* response.sendRedirect("/no_login");*/
      /* session.setAttribute("no_login",session); request.setAttribute("msg", "没有权限，先登录");*/
            //未登录，拦截 返回login
            response.sendRedirect("/login");    //未登录，拦截跳转到登录页
            return false; } } /*设置能通过的url*/
    public List<String> getUrls() { urls.add("/login");   //login url请求
        urls.add("/doLogin");  //登录请求
        urls.add("/no_login"); urls.add("/swagger-ui.html"); //静态资源
        urls.add("/img/*"); urls.add("/js/*"); urls.add("/css/*"); return urls; } }

3.注册拦截器配置类

package com.ckf.springbootinterceptor.config; import org.springframework.context.annotation.Configuration; import org.springframework.web.servlet.config.annotation.InterceptorRegistry; import org.springframework.web.servlet.config.annotation.WebMvcConfigurer; /** * 注册拦截器配置类 */ @Configuration public class WebappAdrapter implements WebMvcConfigurer { /** * 将登录拦截器添加进来 * addPathPatterns()添加拦截 * excludePathPatterns（）排除拦截 */ @Override public void addInterceptors(InterceptorRegistry registry) { //实例化登录拦截器，用于注册
        LoginInterceptor loginInterceptor = new LoginInterceptor(); /*** * 所有路径都被拦截 addPathPatterns("/**") * 允许通过 excludePathPatterns("/login", "/register") */ registry.addInterceptor(loginInterceptor).addPathPatterns("/**").excludePathPatterns("/swagger-resources/**").excludePathPatterns(loginInterceptor.getUrls()); WebMvcConfigurer.super.addInterceptors(registry);  } }

项目已托管码云

地址：https://gitee.com/ckfeng/springboot-interceptor.git