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内嵌tomcat快速入门
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1.依赖
<!--Java语言操作tomcat -->
<dependency>
<groupId>org.apache.tomcat.embed</groupId>
<artifactId>tomcat-embed-core</artifactId>
<version>8.5.16</version>
</dependency> <!-- tomcat对jsp支持 -->
<dependency>
<groupId>org.apache.tomcat</groupId>
<artifactId>tomcat-jasper</artifactId>
<version>8.5.16</version>
</dependency>
2.新建一个IndexServlet 集成 HttpServlet，重写init,doGet,doPost
/**
* Project Name:mk-springboot <br>
* Package Name:com.suns.servlet <br>
*
* @author mk <br>
* Date:2019-3-14 17:04 <br>
*/ package com.suns.servlet; import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException; /**
* ClassName: IndexServlet <br>
* Description: <br>
* @author mk
* @Date 2019-3-14 17:04 <br>
* @version
*/
public class IndexServlet extends HttpServlet { @Override
protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
this.doPost(req,resp);
} @Override
protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
System.out.println(this.getClass()+" doPost");
resp.getWriter().print("this is a embed tomcat");
} @Override
public void init() throws ServletException {
System.out.println(this.getClass()+" init");
}
}
3.新建tomcat启动类MkTomcat, 使用main方法运行
/**
* Project Name:mk-springboot <br>
* Package Name:com.suns.servlet <br>
*
* @author mk <br>
* Date:2019-3-14 17:07 <br>
*/ package com.suns.servlet; import org.apache.catalina.LifecycleException;
import org.apache.catalina.core.StandardContext;
import org.apache.catalina.startup.Tomcat; /**
* ClassName: MkTomcat <br>
* Description: <br>
* @author mk
* @Date 2019-3-14 17:07 <br>
* @version
*/
public class MkTomcat { private static int PORT = 8080;
private static String CONTEX_PATH = "/mk";
private static String SERVLET_NAME = "indexServlet"; public static void main(String[] args) throws LifecycleException {
// 创建tomcat服务器
Tomcat tomcatServer = new Tomcat();
// 指定端口号
tomcatServer.setPort(PORT);
// 是否设置自动部署
tomcatServer.getHost().setAutoDeploy(false);
// 创建上下文
StandardContext standardContex = new StandardContext();
standardContex.setPath(CONTEX_PATH);
// 监听上下文
standardContex.addLifecycleListener(new Tomcat.FixContextListener());
// tomcat容器添加standardContex
tomcatServer.getHost().addChild(standardContex); // 创建Servlet
tomcatServer.addServlet(CONTEX_PATH, SERVLET_NAME, new IndexServlet());
// servleturl映射
standardContex.addServletMappingDecoded("/index", SERVLET_NAME);
tomcatServer.start();
System.out.println("tomcat服务器启动成功..");
// 异步进行接收请求
tomcatServer.getServer().await();
}
}
4.访问入口：http://localhost:8080/mk/index 就可以看到效果
