新建的springboot跳轉頁面404的問題

從start.spring.io下載的maven項目,功能選擇的web,部署到本地后controller斷點能擊中，但retrun后提示404，同時后台打印一條error日志

Cannot forward to error page for request [/] as the response has already been committed. As a result, the response may have the wrong status code. If your application is running on WebSphere Application Server you may be able to resolve this problem by setting com.ibm.ws.webcontainer.invokeFlushAfterService to false

解決方法

　　pom.xm引入

<dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-thymeleaf</artifactId>
        </dependency>

就好了。