maven插件spring-boot-starter-tomcat的使用方式
作者：金霖海
这篇文章主要介绍了maven插件spring-boot-starter-tomcat的使用方式，具有很好的参考价值，希望对大家有所帮助。如有错误或未考虑完全的地方，望不吝赐教
tomcat内嵌到web项目中
将tomcat 内嵌到 web项目中，这样可以直接运行 webapp项目。
不需要再部署到额外的tomcat，直接就可以运行了。
1.pom.xml 配置
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-tomcat</artifactId>
<version>2.3.0.RELEASE</version>
</plugin>
</plugins>2.tomcat使用maven内嵌入到web项目需要jdk运行环境
eclipse默认的运行环境式jre，我们需要改成jdk
问题解决：
3.springmvc依赖
Spring V4.1以后的版本运行时会报如下错误：
NoSuchMethodError: javax.servlet.http.HttpServletResponse.getStatus()
我们使用Spring V4.1以前的版本运行，依赖如下
<dependency> <groupId>org.springframework</groupId> <artifactId>spring-webmvc</artifactId> <version>4.0.1.RELEASE</version> </dependency>
导入对象转json的依赖
<dependency> <groupId>com.fasterxml.jackson.core</groupId> <artifactId>jackson-annotations</artifactId> <version>2.9.5</version> </dependency> <dependency> <groupId>com.fasterxml.jackson.core</groupId> <artifactId>jackson-core</artifactId> <version>2.9.5</version> </dependency> <dependency> <groupId>com.fasterxml.jackson.core</groupId> <artifactId>jackson-databind</artifactId> <version>2.9.5</version> </dependency>
在pom.xml中配置jdk版本
<properties>
<maven.compiler.source>1.8</maven.compiler.source>
<maven.compiler.target>1.8</maven.compiler.target>
</properties>
4.编写表现层代码
@RestController
public class UserController {
@RequestMapping("query")
public Map<String, Object> query(){
HashMap<String, Object> map = new HashMap<String, Object>();
map.put("code", 0);
return map;
}
}
5.配置web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://xmlns.jcp.org/xml/ns/javaee" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd" id="WebApp_ID" version="3.1">
<display-name>TomcatDemo</display-name>
<!-- 编码级过滤器 -->
<filter>
<filter-name>characterEncodingFilter</filter-name>
<filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
<init-param>
<param-name>encoding</param-name>
<param-value>UTF-8</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>characterEncodingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<!-- 配置SpringMVC的核心控制器 -->
<servlet>
<servlet-name>springmvc</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>ContextConfigLocation</param-name>
<param-value>classpath:spring.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>springmvc</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
</web-app>6.SpringMVC的配置文件
<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:context="http://www.springframework.org/schema/context" xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd"> <!-- 扫描具有注解的类 --> <context:component-scan base-package="com.wn"></context:component-scan> <!-- 使SpringMVC的注解生效 --> <mvc:annotation-driven></mvc:annotation-driven> <!-- 配置静态资源过滤器 --> <mvc:resources location="/" mapping="/**"></mvc:resources> </beans>
7.配置完成后在项目上鼠标右键
Run As->Maven build->输入tomcat启动命令启动tomcat
tomcat:run
以上为个人经验，希望能给大家一个参考，也希望大家多多支持脚本之家。