maven插件spring-boot-starter-tomcat的使用方式
目录
- tomcat内嵌到web项目中
- 1.pom.xml 配置
- 2.tomcat使用maven内嵌入到web项目需要jdk运行环境
- 3.springmvc依赖
- 4.编写表现层代码
- 5.配置web.xml
- 6.SpringMVC的配置文件
- 7.配置完成后在项目上鼠标右键
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我们。
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