配置嵌入式Jetty支持注解Servlet和JSP和打包成jar配置

浅浅的花香味﹌ 2023-09-30 10:58 6阅读 0赞

目录结构

│  pom.xml
    │
    └─src
        ├─main
        │  ├─java
        │  │  └─com
        │  │      └─example
        │  │              EmbeddedJettyWebApp.java
        │  │              HelloWorldServlet.java
        │  │
        │  ├─resources
        │  └─webapp
        │      │  index.jsp
        │      │
        │      └─WEB-INF
        └─test
            └─java

pom.xml

EmbeddedJettyWebApp.java

package com.example;
    
    import org.eclipse.jetty.annotations.AnnotationConfiguration;
    import org.eclipse.jetty.plus.webapp.EnvConfiguration;
    import org.eclipse.jetty.plus.webapp.PlusConfiguration;
    import org.eclipse.jetty.server.NetworkTrafficServerConnector;
    import org.eclipse.jetty.server.Server;
    import org.eclipse.jetty.util.thread.QueuedThreadPool;
    import org.eclipse.jetty.util.thread.ThreadPool;
    import org.eclipse.jetty.webapp.Configuration;
    import org.eclipse.jetty.webapp.FragmentConfiguration;
    import org.eclipse.jetty.webapp.MetaInfConfiguration;
    import org.eclipse.jetty.webapp.WebAppContext;
    import org.eclipse.jetty.webapp.WebInfConfiguration;
    import org.eclipse.jetty.webapp.WebXmlConfiguration;
    
    public class EmbeddedJettyWebApp {
    
        public static void main(String[] args) throws Exception {
            Server server = new Server(createThreadPool());
    
            NetworkTrafficServerConnector connector = new NetworkTrafficServerConnector(server);
            connector.setPort(9090);
            connector.setHost("localhost");
    
            server.addConnector(connector);
    
            WebAppContext webAppContext = new WebAppContext();
            webAppContext.setContextPath("/");
            webAppContext.setResourceBase("src/main/webapp");
    
            webAppContext.setConfigurations(new Configuration[]{
                new AnnotationConfiguration(), new WebXmlConfiguration(),
                new WebInfConfiguration(), new PlusConfiguration(),
                new MetaInfConfiguration(), new FragmentConfiguration(),
                new EnvConfiguration()
            });
    
            webAppContext.setAttribute(
                    "org.eclipse.jetty.server.webapp.ContainerIncludeJarPattern",
                    ".*/target/classes/|.*\\.jar");
    
            webAppContext.setParentLoaderPriority(true);
    
            server.setHandler(webAppContext);
    
            server.setStopAtShutdown(true);
    
            server.start();
            server.join();
        }
    
        private static ThreadPool createThreadPool() {
            QueuedThreadPool threadPool = new QueuedThreadPool(5);
            return threadPool;
        }
    }

HelloWorldServlet.java

package com.example;
    
    import javax.servlet.ServletException;
    import javax.servlet.http.HttpServlet;
    import javax.servlet.http.HttpServletRequest;
    import javax.servlet.http.HttpServletResponse;
    import java.io.IOException;
    import java.io.PrintWriter;
    import javax.servlet.annotation.WebServlet;
    
    @WebServlet("/HelloWorld")
    public class HelloWorldServlet extends HttpServlet {
    
        public void doGet(HttpServletRequest request,
                HttpServletResponse response) throws ServletException, IOException {
            response.setContentType("text/html");
            PrintWriter out = response.getWriter();
            out.println("<h1>Hello World</h1>");
            out.close();
        }
    
    }

index.jsp

<!DOCTYPE html>
    <html>
        <body>
            <p>
                Today's date: <%= (new java.util.Date()).toLocaleString() %>
            </p>
        </body>
    </html>

如果需要打包成jar运行，需要修改：

pom.xml

<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>com.example</groupId>
        <artifactId>web-app-embedded-jetty-9</artifactId>
        <version>0.0.1-SNAPSHOT</version>
        <packaging>jar</packaging>
    
        <properties>
            <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
            <maven.compiler.source>1.8</maven.compiler.source>
            <maven.compiler.target>1.8</maven.compiler.target>
        </properties>
    
        <dependencies>
            <dependency>
                <groupId>javax.servlet</groupId>
                <artifactId>javax.servlet-api</artifactId>
                <version>3.1.0</version>
            </dependency>
    
    
    
    
            
            <dependency>
                <groupId>org.eclipse.jetty</groupId>
                <artifactId>jetty-server</artifactId>
                <version>9.4.35.v20201120</version>
            </dependency>
    
            <dependency>
                <groupId>org.eclipse.jetty</groupId>
                <artifactId>jetty-servlet</artifactId>
                <version>9.4.35.v20201120</version>
            </dependency>
    
            <dependency>
                <groupId>org.eclipse.jetty</groupId>
                <artifactId>jetty-webapp</artifactId>
                <version>9.4.35.v20201120</version>
            </dependency>
    
            <dependency>
                <groupId>org.eclipse.jetty</groupId>
                <artifactId>jetty-annotations</artifactId>
                <version>9.4.35.v20201120</version>
            </dependency>
    
            
            <dependency>
                <groupId>org.eclipse.jetty</groupId>
                <artifactId>apache-jsp</artifactId>
                <version>9.4.45.v20220203</version>
            </dependency>
    
            <dependency>
                <groupId>org.eclipse.jetty</groupId>
                <artifactId>apache-jstl</artifactId>
                <version>9.4.45.v20220203</version>
            </dependency>
    
    
        </dependencies>
    
        <build>
            <resources>
    
                <resource>
                    <directory>src/main/webapp</directory>
                    <targetPath>src/main/webapp</targetPath>
                    <includes>
                        <include>**/**</include>
                    </includes>
                </resource>
    
            </resources>
            <plugins>
                <plugin>
                    <groupId>org.apache.maven.plugins</groupId>
                    <artifactId>maven-assembly-plugin</artifactId>
                    <version>3.1.1</version>
    
                    <configuration>
                        <descriptorRefs>
                            <descriptorRef>jar-with-dependencies</descriptorRef>
                        </descriptorRefs>
                        <archive>
                            <manifest>
                                <mainClass>com.example.EmbeddedJettyWebApp</mainClass>
                            </manifest>
                        </archive>
                    </configuration>
    
                    <executions>
                        <execution>
                            <id>make-assembly</id>
                            <phase>package</phase>
                            <goals>
                                <goal>single</goal>
                            </goals>
                        </execution>
                    </executions>
    
                </plugin>
                <plugin>
                    <groupId>org.apache.maven.plugins</groupId>
                    <artifactId>maven-compiler-plugin</artifactId>
                    <version>3.8.1</version>
                </plugin>
    
                <plugin>
                    <groupId>org.eclipse.jetty</groupId>
                    <artifactId>jetty-maven-plugin</artifactId>
                    <version>9.4.45.v20220203</version>
                </plugin>
            </plugins>
        </build>
    </project>

EmbeddedJettyWebApp.java

package com.example;
    
    import java.io.InputStream;
    import java.net.URL;
    import org.eclipse.jetty.annotations.AnnotationConfiguration;
    import org.eclipse.jetty.plus.webapp.EnvConfiguration;
    import org.eclipse.jetty.plus.webapp.PlusConfiguration;
    import org.eclipse.jetty.server.NetworkTrafficServerConnector;
    import org.eclipse.jetty.server.Server;
    import org.eclipse.jetty.util.thread.QueuedThreadPool;
    import org.eclipse.jetty.util.thread.ThreadPool;
    import org.eclipse.jetty.webapp.Configuration;
    import org.eclipse.jetty.webapp.FragmentConfiguration;
    import org.eclipse.jetty.webapp.MetaInfConfiguration;
    import org.eclipse.jetty.webapp.WebAppContext;
    import org.eclipse.jetty.webapp.WebInfConfiguration;
    import org.eclipse.jetty.webapp.WebXmlConfiguration;
    
    public class EmbeddedJettyWebApp {
    
        public static void main(String[] args) throws Exception {
            Server server = new Server(createThreadPool());
    
            NetworkTrafficServerConnector connector = new NetworkTrafficServerConnector(server);
            connector.setPort(9090);
            connector.setHost("localhost");
    
            server.addConnector(connector);
    
            WebAppContext webAppContext = new WebAppContext();
            webAppContext.setContextPath("/");
            String webDir = EmbeddedJettyWebApp.class.getClassLoader().getResource("src/main/webapp").toExternalForm();
    
            webAppContext.setResourceBase(webDir);
            System.out.println("ResourceBase:" + webAppContext.getResourceBase());
    
            webAppContext.setConfigurations(new Configuration[]{
                new AnnotationConfiguration(), new WebXmlConfiguration(),
                new WebInfConfiguration(), new PlusConfiguration(),
                new MetaInfConfiguration(), new FragmentConfiguration(),
                new EnvConfiguration()
            });
    
            webAppContext.setAttribute(
                    "org.eclipse.jetty.server.webapp.ContainerIncludeJarPattern",
                    ".*/target/classes/|.*\\.jar");
    
            webAppContext.setParentLoaderPriority(true);
    
            server.setHandler(webAppContext);
    
            server.setStopAtShutdown(true);
    
            server.start();
            server.join();
        }
    
        private static ThreadPool createThreadPool() {
            QueuedThreadPool threadPool = new QueuedThreadPool(5);
            return threadPool;
        }
    }

对于WEB-INF\\lib下有jar库的情况时，不太容易处理fat jar里的目录，建议不使用java -jar xxx.jar运行，而是打fat jar 包后解压再运行，此时

EmbeddedJettyWebApp.java

package com.example;
    
    import java.io.InputStream;
    import java.net.URL;
    import org.eclipse.jetty.annotations.AnnotationConfiguration;
    import org.eclipse.jetty.plus.webapp.EnvConfiguration;
    import org.eclipse.jetty.plus.webapp.PlusConfiguration;
    import org.eclipse.jetty.server.NetworkTrafficServerConnector;
    import org.eclipse.jetty.server.Server;
    import org.eclipse.jetty.util.thread.QueuedThreadPool;
    import org.eclipse.jetty.util.thread.ThreadPool;
    import org.eclipse.jetty.webapp.Configuration;
    import org.eclipse.jetty.webapp.FragmentConfiguration;
    import org.eclipse.jetty.webapp.MetaInfConfiguration;
    import org.eclipse.jetty.webapp.WebAppContext;
    import org.eclipse.jetty.webapp.WebInfConfiguration;
    import org.eclipse.jetty.webapp.WebXmlConfiguration;
    
    public class EmbeddedJettyWebApp {
    
        public static void main(String[] args) throws Exception {
            Server server = new Server(createThreadPool());
    
            NetworkTrafficServerConnector connector = new NetworkTrafficServerConnector(server);
            connector.setPort(9090);
            connector.setHost("localhost");
    
            server.addConnector(connector);
    
            WebAppContext webAppContext = new WebAppContext();
            webAppContext.setContextPath("/");
            webAppContext.setResourceBase("src/main/webapp");
            System.out.println("ResourceBase:" + webAppContext.getResourceBase());
    
            webAppContext.setConfigurations(new Configuration[]{
                new AnnotationConfiguration(), new WebXmlConfiguration(),
                new WebInfConfiguration(), new PlusConfiguration(),
                new MetaInfConfiguration(), new FragmentConfiguration(),
                new EnvConfiguration()
            });
    
            webAppContext.setAttribute(
                    "org.eclipse.jetty.server.webapp.ContainerIncludeJarPattern",
                    ".*/target/classes/|.*\\.jar");
    
            webAppContext.setParentLoaderPriority(true);
    
            server.setHandler(webAppContext);
    
            server.setStopAtShutdown(true);
    
            server.start();
            server.join();
        }
    
        private static ThreadPool createThreadPool() {
            QueuedThreadPool threadPool = new QueuedThreadPool(5);
            return threadPool;
        }
    }

在解开包后的文件夹根目录，运行命令，如：

F:\\web-app-embedded-jetty-jspmon\\target\\web-app-embedded-jetty-jspmon-0.0.1-SNAPSHOT-jar-with-dependencies>java com.example.EmbeddedJettyWebApp