제티 메이븐 플러그인

제티 메이븐 플러그인(Jetty Maven Plugin)을 사용하면 서버 설치없이 웹 앱을 테스트할 수 있다.

메이븐 아키타입을 생성한다.

mvn archetype:generate -Dfilter=maven-archetype-webapp

Choose archetype:
1: remote -> com.haoxuer.maven.archetype:maven-archetype-webapp (a simple maven archetype)
2: remote -> com.lodsve:lodsve-maven-archetype-webapp (Lodsve Maven Archetype Webapp)
3: remote -> org.apache.maven.archetypes:maven-archetype-webapp (An archetype which contains a sample Maven Webapp project.)
Choose a number or apply filter (format: [groupId:]artifactId, case sensitive contains): : 3

Define value for property 'groupId': : net.java_school.servlet
Define value for property 'artifactId': : initParam
Define value for property 'version':  1.0-SNAPSHOT: : 
Define value for property 'package':  net.java_school.servlet: : 

아래처럼 디텍터리를 생성한 후, initParamServlet.java 파일을 생성한다.

initParam
  └── src
       └── main
            └── java
                 └── example
                       └── InitParamServlet.java

package example;

import java.io.IOException;
import java.io.PrintWriter;

import javax.servlet.ServletConfig;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

public class InitParamServlet extends HttpServlet {

  private String url;
  private String user;
  private String passwd;
  private String driver;

  @Override
  public void init() throws ServletException {
    url = this.getInitParameter("url");
    user = this.getInitParameter("user");
    passwd = this.getInitParameter("passwd");
    driver = this.getInitParameter("driver");
  }

  @Override
  public void doGet(HttpServletRequest req, HttpServletResponse resp) 
      throws IOException, ServletException {

    resp.setContentType("text/html; charset=UTF-8");
    PrintWriter out = resp.getWriter();

    out.println("url: " + url + "<br />");
    out.println("user: " + user + "<br />");
    out.println("passwd: " + passwd + "<br />");
    out.println("driver: " + driver);

  }

}

web.xml 파일을 수정한다.

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee
                      http://xmlns.jcp.org/xml/ns/javaee/web-app_4_0.xsd"
  version="4.0">

  <servlet>
    <servlet-name>InitParamServlet</servlet-name>
    <servlet-class>example.InitParamServlet</servlet-class>
    <init-param>
      <param-name>driver</param-name>
      <param-value>oracle.jdbc.driver.OracleDriver</param-value>
    </init-param>
    <init-param>
      <param-name>url</param-name>
      <param-value>jdbc:oracle:thin:@127.0.0.1:1521:XE</param-value>
    </init-param>
    <init-param>
      <param-name>user</param-name>
      <param-value>scott</param-value>
    </init-param>
    <init-param>
      <param-name>passwd</param-name>
      <param-value>tiger</param-value>
    </init-param>
  </servlet>

  <servlet-mapping>
    <servlet-name>InitParamServlet</servlet-name>
    <url-pattern>/initParam</url-pattern>
  </servlet-mapping>

</web-app>

pom.xml 파일을 수정한다.

<?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/maven-v4_0_0.xsd">
    <modelVersion>4.0.0</modelVersion>

  <groupId>net.java_school.servlet</groupId>
  <artifactId>initParam</artifactId>
  <version>1.0-SNAPSHOT</version>
  <packaging>war</packaging>

  <name>initParam Maven Webapp</name>
  <url>http://www.java-school.net</url>

  <dependencies>
    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>4.11</version>
      <scope>test</scope>
    </dependency>
    <dependency>
      <groupId>javax.servlet</groupId>
      <artifactId>javax.servlet-api</artifactId>
      <version>4.0.1</version>
      <scope>provided</scope>
    </dependency>
    <dependency>
      <groupId>javax.servlet.jsp</groupId>
      <artifactId>javax.servlet.jsp-api</artifactId>
      <version>2.3.3</version>
      <scope>provided</scope>
    </dependency>
    <dependency>
      <groupId>jstl</groupId>
      <artifactId>jstl</artifactId>
      <version>1.2</version>
    </dependency>
  </dependencies>

  <build>
    <finalName>initParam</finalName>
    <pluginManagement>
      <plugins>
        <plugin>
          <artifactId>maven-clean-plugin</artifactId>
          <version>3.1.0</version>
        </plugin>
        <plugin>
          <artifactId>maven-resources-plugin</artifactId>
          <version>3.0.2</version>
        </plugin>
        <plugin>
          <artifactId>maven-compiler-plugin</artifactId>
          <version>3.8.0</version>
        </plugin>
        <plugin>
          <artifactId>maven-surefire-plugin</artifactId>
          <version>2.22.1</version>
        </plugin>
        <plugin>
          <artifactId>maven-war-plugin</artifactId>
          <version>3.2.2</version>
        </plugin>
        <plugin>
          <artifactId>maven-install-plugin</artifactId>
          <version>2.5.2</version>
        </plugin>
        <plugin>
          <artifactId>maven-deploy-plugin</artifactId>
          <version>2.8.2</version>
        </plugin>
        <plugin>
          <groupId>org.eclipse.jetty</groupId>
          <artifactId>jetty-maven-plugin</artifactId>
          <version>10.0.2</version>
        </plugin>
      </plugins>
    </pluginManagement>
  </build>
</project>

initParam 디렉터리로 이동하여 다음 명령으로 제티 서버를 실행한다.

mvn jetty:run

http://localhost:8080/initParam 을 방문하여 테스트한다.

자바 8에서 테스트하려면 pom.xml과 web.xml을 아래를 참조해 수정한다.

<!-- https://mvnrepository.com/artifact/javax.servlet/javax.servlet-api -->
<dependency>
    <groupId>javax.servlet</groupId>
    <artifactId>javax.servlet-api</artifactId>
    <version>3.1.0</version>
    <scope>provided</scope>
</dependency>

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee
                      http://xmlns.jcp.org/xml/ns/javaee/web-app_4_0.xsd"
  version="4.0">

</web-app>  

• https://mvnrepository.com/artifact/org.eclipse.jetty/jetty-maven-plugin
• https://www.eclipse.org/jetty/download.php