Unable to start web server; nested exception is org.springframework.boot.web.server.WebServerException: Unable

引用和是关于Spring Boot启动web服务器时的异常信息。这个异常通常发生在启动类配置有问题的情况下。可以通过在启动类上添加@EnableAutoConfiguration注解来解决这个问题。如下所示：

@EnableAutoConfiguration
@Controller
public class HelloController {
    @ResponseBody
    @RequestMapping("/hello")
    public String hello(){
        return "hello SpringBoot!";
    }
}

这样配置之后，应该能够解决启动web服务器的异常问题。

另外，你还可以查看错误日志来帮助排查问题。引用中的代码展示了如何打印错误日志：

@Slf4j
@EnableScheduling
@EnableFeignClients(basePackages = "com.iot")
@SpringBootApplication(scanBasePackages={"com.iot"})
@MapperScan({"com.iot.daily.*.dao"})
public class DailyApplication implements ApplicationRunner {
    public static void main(String[] args) {
        try {
            SpringApplication.run(DailyApplication.class, args);
        } catch (Exception e) {
            e.printStackTrace();
            log.error("报错原因 ============== ", e);
        }
    }

    @Override
    public void run(ApplicationArguments args) throws Exception {
        log.info("日报系统启动成功了！......");
    }
}

你可以根据错误日志中的具体信息来进一步排查并解决问题。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
#### 引用[.reference_title]
- *1* *3* [Unable to start web server... nested exception is org.springframework.boot.web.server.WebServerExcepti](https://blog.csdn.net/weixin_44299027/article/details/118325768)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v92^chatsearchT0_1"}}] [.reference_item style="max-width: 50%"]
- *2* [SpringBoot报错：Unable to start web ... nested exception is org.springframework.context.Application](https://blog.csdn.net/dl962454/article/details/105881089)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v92^chatsearchT0_1"}}] [.reference_item style="max-width: 50%"]
[ .reference_list ]