Maven小白求教，servlet部署到tomcat

[YuenBin128]

POM.XML文件
<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>cn.itcast</groupId>
<artifactId>01_helloworld</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>war</packaging>
<!-- 添加项目jdk编译插件 -->
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<configuration>
<source>1.8</source>
<target>1.8</target>
<encoding>UTF-8</encoding>
</configuration>
</plugin>
</plugins>
</build>
<dependencies>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>3.1.0</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jsp-api</artifactId>
<version>2.0</version>
<scope>provided</scope>
</dependency>
</dependencies>
</project>

```

```

Servlet类
package servlet;

import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
* Servlet implementation class HelloServlet
*/
@WebServlet("/HelloServlet")
public class HelloServlet extends HttpServlet {
private static final long serialVersionUID = 1L;

protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
response.setContentType("text/html;charset=utf-8");
response.getWriter().write("helloMaven");
}

/**
* @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
*/
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// TODO Auto-generated method stub
doGet(request, response);
}

}


```
```

控制台信息
[INFO] Scanning for projects...
[WARNING]
[WARNING] Some problems were encountered while building the effective model for cn.itcast:01_helloworld:war:0.0.1-SNAPSHOT
[WARNING] 'build.plugins.plugin.version' for org.apache.maven.plugins:maven-compiler-plugin is missing. @ line 11, column 12
[WARNING]
[WARNING] It is highly recommended to fix these problems because they threaten the stability of your build.
[WARNING]
[WARNING] For this reason, future Maven versions might no longer support building such malformed projects.
[WARNING]
[INFO]
[INFO] ------------------------------------------------------------------------
[INFO] Building 01_helloworld 0.0.1-SNAPSHOT
[INFO] ------------------------------------------------------------------------
[INFO]
[INFO] >>> tomcat-maven-plugin:1.1:run (default-cli) > compile @ 01_helloworld >>>
[INFO]
[INFO] --- maven-resources-plugin:2.6:resources (default-resources) @ 01_helloworld ---
[WARNING] Using platform encoding (GBK actually) to copy filtered resources, i.e. build is platform dependent!
[INFO] Copying 0 resource
[INFO]
[INFO] --- maven-compiler-plugin:3.1:compile (default-compile) @ 01_helloworld ---
[INFO] Changes detected - recompiling the module!
[INFO] Compiling 1 source file to D:\EclpiseWorkspace\01_helloworld\target\classes
[INFO]
[INFO] <<< tomcat-maven-plugin:1.1:run (default-cli) < compile @ 01_helloworld <<<
[INFO]
[INFO]
[INFO] --- tomcat-maven-plugin:1.1:run (default-cli) @ 01_helloworld ---
[INFO] Running war on http://localhost:8080/01_helloworld
[INFO] Creating Tomcat server configuration at D:\EclpiseWorkspace\01_helloworld\target\tomcat
十二月 20, 2017 6:19:12 下午 org.apache.catalina.startup.Embedded start
信息: Starting tomcat server
十二月 20, 2017 6:19:13 下午 org.apache.catalina.core.StandardEngine start
信息: Starting Servlet Engine: Apache Tomcat/6.0.29
十二月 20, 2017 6:19:13 下午 org.apache.coyote.http11.Http11Protocol init
信息: Initializing Coyote HTTP/1.1 on http-8080
十二月 20, 2017 6:19:13 下午 org.apache.coyote.http11.Http11Protocol start
信息: Starting Coyote HTTP/1.1 on http-8080


```

```

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[YuenBin128]

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[tianfang]

<groupId>org.apache.maven.plugins</groupId> <artifactId>maven-compiler-plugin</artifactId> 还要加上版本号