springMVC系列（五）——springMVC拦截器实现接口访问日志

痛定思痛。 2022-06-16 13:52 176阅读 0赞

业务需求

记录访问接口的机器信息、ip地址、时间等数据并存储在数据库表中，要求对原代码没有入侵性，机器信息放在请求的中。

1.接口访问日志表mb\_accesslog

CREATE TABLE`mb_accesslog`(
     `id` int(11) NOTNULLAUTO_INCREMENT,
     `ip` varchar(20) NOTNULLCOMMENT 'IP',
     `code`varchar(20) NOT NULL COMMENT 'Code',
     `mac` varchar(20) NOTNULLCOMMENT 'Mac',
     `account`varchar(20) NOT NULL COMMENT 'Account',
     `model`varchar(50) DEFAULT NULL COMMENT '机型',
     `accesstime`datetimeNOTNULLCOMMENT '访问时间',
     `resource`varchar(100) NOT NULL COMMENT '访问资源',
     PRIMARYKEY(`id`)
    ) ENGINE=InnoDB AUTO_INCREMENT=1261 DEFAULT CHARSET=utf8;

2.拦截器AccesslogInterceptor，拦截器类必须实现HandlerInterceptorAdapter类，preHandle方法是拦截在访问开始前。

@Component
    public classAccesslogInterceptor extends HandlerInterceptorAdapter {
        @Autowired
        private AccesslogService accesslogService;
     
        public booleanpreHandle(HttpServletRequest request, HttpServletResponse response, Object handler)
               throws Exception {
           Stringip = request.getRemoteAddr();
           Stringcode= (String)request.getAttribute("code");
           Stringmac= (String)request.getAttribute("mac");
           Stringaccount= (String)request.getAttribute("account");
           Dateaccesstime= newDate();
           Stringresource= request.getRequestURI().split("/")[2];
           Accesslogaccesslog= newAccesslog(ip, code, mac, account, null, accesstime, resource);
           accesslogService.insertOne(accesslog);
           return true;
        }
    }

3.配置拦截器

<mvc:interceptors>     
       <mvc:interceptor>
           <mvc:mapping path="/bls/*"/>
           <bean class="com.yoostar.support.interceptor.AccesslogInterceptor"/>
       </mvc:interceptor>
    </mvc:interceptors>

4.编写测试类，通过get访问

@Test
    public voidtestPost() throwsIOException {
        Stringurl= "http://localhost:8080/study_ssmvc/bls/test.m3u8";
        Stringparam= "code=1&mac=2&account=12";
        URLrealUrl= newURL(url);
        URLConnectionuc = realUrl.openConnection();
        // 发送POST请求必须设置如下两行
        uc.setDoOutput(true);
        uc.setDoInput(true);
        OutputStreamos = uc.getOutputStream();
        PrintWriterout= newPrintWriter(os);
        out.print(param);
        out.flush();
       // 定义BufferedReader输入流来读取URL的响应
        BufferedReaderin = new BufferedReader(
                new InputStreamReader(uc.getInputStream()));  //这里才开始访问
       String line;
       String result= "";
       while((line= in.readLine()) != null) {
            result += line + "\n";
       }
       System.out.println(result);
    }