Java异常处理004:Springboot项目在tomcat下正常启动,但是无法访问(页面和接口)
解决方案:
第一步,在POM.XML文件引入依赖
<!-- 打war包时加入此项, 告诉spring-boot tomcat相关jar包用外部的,不要打进去 --> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-tomcat</artifactId> <scope>provided</scope> </dependency> <!-- springboot自带的tomcat并没有携带tomcat-embed-jasper的依赖,如果不引入tomcat-embed-jasper依赖,使用SPringboot启动项目则会无法成功--> <dependency> <groupId>org.apache.tomcat.embed</groupId> <artifactId>tomcat-embed-jasper</artifactId> </dependency>
第二部,修改Springboot启动类,继承SpringBootServletInitializer类(作用是为了支持可以不使用web.xml)
public class DemoApplication { public static void main(String[] args) { SpringApplication.run(DemoApplication.class, args); } } 改成 public class DemoApplication extends SpringBootServletInitializer { public static void main(String[] args) { SpringApplication.run(DemoApplication.class, args); } }
对SpringBootServletInitializer类的理解,请参考:https://blog.csdn.net/zq17865815296/article/details/79464403