idea使用外置tomcat配置springboot详细步骤

创建一个maven项目 导入springboot依赖，注意底下注释部分 <? xml version = "1.0" encoding = "UTF-8" ?> <project xmlns = "http://maven.apache.org/POM/4.0.0" xmlns:xsi = "http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation = "http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd" > <modelVersion> 4.0.0 </modelVersion>   <groupId> com.znsd.springboot </groupId> <artifactId> springboot-jsp </artifactId> <version> 1.0-SNAPSHOT </version>   <!-- 一定要声明war包 --> <packaging> war </packaging> <parent> <groupId> org.springframework.boot </groupId> <artifactId> spring-boot-starter-parent </artifactId> <version> 2.3.12.RELEASE </version> <relativePath/> <!-- lookup parent from repository --> </parent>   <dependencies> <dependency> <groupId> org.springframework.boot </groupId> <artifactId> spring-boot-starter-web </artifactId> </dependency>   <!-- 去除springboot默认tomcat依赖,让其在生成war包时无效， --> <dependency> <groupId> org.springframework.boot </groupId> <artifactId> spring-boot-starter-tomcat </artifactId> <!--在编译和测试有效，生成war包时无效--> <scope> provided </scope> </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>   <build> <plugins> <plugin> <groupId> org.springframework.boot </groupId> <artifactId> spring-boot-maven-plugin </artifactId> </plugin> </plugins> </build> </project>

完成下图操作保存即可

配置tomcat启动项

配置视图解析器

创建一个springboot主程序

@SpringBootApplication public class SpringBootMain { public static void main ( String [] args ) { SpringApplication . run ( SpringBootMain . class , args ); } }

必须编写一个SpringBootServletInitializer的子类，并调用configure方法里面的固定写法

public class ServletInitializer extends SpringBootServletInitializer { @Override protected SpringApplicationBuilder configure ( SpringApplicationBuilder application ) { //传入SpringBoot的主程序， return application . sources ( SpringBootMain . class ); } }

然后启动tomcat，控制台输出了spring就启动成功了

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原文链接：https://www.cnblogs.com/nanyiaka/p/14959805.html

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