J2EE打造可執行war包

1. 使用Jetty為嵌入式服務器； 2. 使用ant將web應用打包為runnable.war; 3. 命令行java -jar runnable.war啟動web服務。

1.  下載jetty

注意： Jetty 9.x 需要 JDK 1.7 支持。下表是Jetty各版本狀態一覽。

下載地址： http://download.eclipse.org/jetty/

2.   啟動類

package net.codaview;

import java.io.File;
import java.net.URL;
import java.security.ProtectionDomain;

import org.eclipse.jetty.server.Server;
import org.eclipse.jetty.webapp.WebAppContext;

public class EmbeddedServer {

    public static void main(String[] args) throws Exception {
        int port = Integer.parseInt(System.getProperty("port", "8080"));
        Server server = new Server(port);

        ProtectionDomain domain = EmbeddedServer.class.getProtectionDomain();
        URL warLocation = domain.getCodeSource().getLocation();

        WebAppContext webapp = new WebAppContext();
        webapp.setContextPath("/");
        webapp.setDescriptor(warLocation.toExternalForm() + "/WEB-INF/web.xml");
        webapp.setServer(server);
        webapp.setWar(warLocation.toExternalForm());
        String tempDir = new File(warLocation.getPath()).getParent() + "/tmp";
        webapp.setTempDirectory(new File(tempDir));

        server.setHandler(webapp);
        server.start();
        server.join();
    }
}

3.   ant腳本

<project>
    <target name="war">
        <!-- web根路徑 -->
        <property name="webapp.dir" location="${basedir}/webapp" />
        <!-- jetty  -->
        <property name="jetty.dir" location="${basedir}/webapp/WEB-INF/jetty" />
        <!-- 臨時目錄 ,放置打包過程中產生的文件 -->
        <property name="temp.dir" location="${basedir}/temp" />

        <!-- 創建臨時目錄 -->
        <mkdir dir="${temp.dir}" />
        
        <!-- 拷貝web下所有文件到臨時目錄 -->
        <copy todir="${temp.dir}">
            <fileset dir="${webapp.dir}">
                <exclude name="WEB-INF/jetty/*" />
                <exclude name="WEB-INF/tmp/*" />
            </fileset>
        </copy>
        
        <!-- 解壓jetty -->
        <unjar dest="${temp.dir}">
            <fileset dir="${jetty.dir}">
                <include name="jetty-continuation-7.6.9.v20130131.jar" />
                <include name="jetty-http-7.6.9.v20130131.jar" />
                <include name="jetty-io-7.6.9.v20130131.jar" />
                <include name="jetty-jmx-7.6.9.v20130131.jar" />
                <include name="jetty-security-7.6.9.v20130131.jar" />
                <include name="jetty-server-7.6.9.v20130131.jar" />
                <include name="jetty-servlet-7.6.9.v20130131.jar" />
                <include name="jetty-util-7.6.9.v20130131.jar" />
                <include name="jetty-webapp-7.6.9.v20130131.jar" />
                <include name="jetty-xml-7.6.9.v20130131.jar" />
                <include name="annotations-api-6.0.37.jar" />
                <include name="catalina-6.0.37.jar" />
                <include name="ecj-4.2.2.jar" />
                <include name="el-api-6.0.37.jar" />
                <include name="jasper-6.0.37.jar" />
                <include name="jasper-el-6.0.37.jar" />
                <include name="javax.servlet.jsp-api-2.2.1.jar" />
                <include name="jsp-api-6.0.37.jar" />
                <include name="juli-6.0.37.jar" />
                <include name="servlet-api-6.0.37.jar" />
            </fileset>
            <patternset>
                <exclude name="META-INF/**/*" />
                <exclude name="images/**/*" />
                <exclude name=".options" />
                <exclude name="about.html" />
                <exclude name="jetty-dir.css" />
                <exclude name="jdtCompilerAdapter.jar" />
                <exclude name="plugin*" />
            </patternset>
        </unjar>

        <!-- 復制啟動類 -->
        <copy todir="${temp.dir}">
            <fileset dir="${webapp.dir}/WEB-INF/classes" includes="net/codaview/EmbeddedServer.class" />
        </copy>

        <!-- 創建war包 -->
        <war destfile="runnable.war" webxml="${webapp.dir}/web.xml">
            <fileset dir="${temp.dir}" includes="**/*" />
            <classes dir="${webapp.dir}/WEB-INF/classes" />
            <lib dir="${webapp.dir}/WEB-INF/lib" />
            <manifest>
                <attribute name="Main-Class" value="net.codaview.EmbeddedServer" />
            </manifest>
        </war>

        <!-- 刪除臨時目錄 -->
        <delete dir="${temp.dir}" />
    </target>
</project>

4. 運行

java -jar runnable.war

5. 來源 stackoverflow