如何将Web服务器嵌入到CAS webapp版本

Question

我试图运行CAS Web应用程序，例如可执行文件WAR，最初我找到了两种可能的解决方案。但是会有更好的解决方案呢？

1）创建主类以启动Jetty嵌入式服务器并运行CAS战争文件;

import java.io.File; 
import java.io.IOException; 
import java.util.ArrayList; 
import java.util.List; 

import org.apache.tomcat.InstanceManager; 
import org.apache.tomcat.SimpleInstanceManager; 
import org.eclipse.jetty.annotations.ServletContainerInitializersStarter; 
import org.eclipse.jetty.apache.jsp.JettyJasperInitializer; 
import org.eclipse.jetty.plus.annotation.ContainerInitializer; 
import org.eclipse.jetty.server.Server; 
import org.eclipse.jetty.webapp.WebAppContext; 
import org.h2.jdbcx.JdbcDataSource; 

public class CasServerEmbedded { 

    public static void main(String[] args) throws Exception { 

     // Create the server 
     Server server = new Server(8080); 

     // Enable parsing of jndi-related parts of web.xml and jetty-env.xml 
     org.eclipse.jetty.webapp.Configuration.ClassList classlist = org.eclipse.jetty.webapp.Configuration.ClassList 
       .setServerDefault(server); 
     classlist.addAfter("org.eclipse.jetty.webapp.FragmentConfiguration", 
       "org.eclipse.jetty.plus.webapp.EnvConfiguration", "org.eclipse.jetty.plus.webapp.PlusConfiguration"); 

     // Create a WebApp 
     final WebAppContext webAppContext = new WebAppContext(); 
     webAppContext.setAttribute("javax.servlet.context.tempdir", getScratchDir()); 
     webAppContext.setAttribute("org.eclipse.jetty.server.webapp.ContainerIncludeJarPattern", 
       ".*/[^/]*servlet-api-[^/]*\\.jar$|.*/javax.servlet.jsp.jstl-.*\\.jar$|.*/.*taglibs.*\\.jar$"); 
     webAppContext.setAttribute("org.eclipse.jetty.containerInitializers", jspInitializers()); 
     webAppContext.setAttribute(InstanceManager.class.getName(), new SimpleInstanceManager()); 
     webAppContext.addBean(new ServletContainerInitializersStarter(webAppContext), true); 
     webAppContext.setWar("C:\\temp\\cas-server-webapp-4.2.1.war"); 
     server.setHandler(webAppContext); 

     final JdbcDataSource jdbcDataSource = new JdbcDataSource(); 
     jdbcDataSource.setURL("jdbc:h2:c:\\temp\\teste;mv_store=false"); 
     jdbcDataSource.setUser("sa"); 
     jdbcDataSource.setPassword("sa"); 
     jdbcDataSource.getConnection(); 

     new org.eclipse.jetty.plus.jndi.Resource(webAppContext, "jdbc/mydatasource", jdbcDataSource); 

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

    /** 
    * Establish Scratch directory for the servlet context (used by JSP 
    * compilation) 
    */ 
    private static File getScratchDir() throws IOException { 
     File tempDir = new File(System.getProperty("java.io.tmpdir")); 
     File scratchDir = new File(tempDir.toString(), "embedded-jetty-jsp"); 

     if (!scratchDir.exists()) { 
      if (!scratchDir.mkdirs()) { 
       throw new IOException("Unable to create scratch directory: " + scratchDir); 
      } 
     } 
     return scratchDir; 
    } 

    /** 
    * Ensure the jsp engine is initialized correctly 
    */ 
    private static List<ContainerInitializer> jspInitializers() { 
     JettyJasperInitializer sci = new JettyJasperInitializer(); 
     ContainerInitializer initializer = new ContainerInitializer(sci, null); 
     List<ContainerInitializer> initializers = new ArrayList<ContainerInitializer>(); 
     initializers.add(initializer); 
     return initializers; 
    } 
} 

2）使用Maven我可以执行目标码头：运行战争，启动码头嵌入式服务器内部的WAR覆盖。

<?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/xsd/maven-4.0.0.xsd "> 
    <modelVersion>4.0.0</modelVersion> 
    <groupId>org.jasig.cas</groupId> 
    <artifactId>cas-overlay</artifactId> 
    <packaging>war</packaging> 
    <version>1.0</version> 
    <properties> 
     <cas.version>4.2.1</cas.version> 
     <maven-jetty-plugin.version>9.3.6.v20151106</maven-jetty-plugin.version> 
     <maven.compiler.source>1.7</maven.compiler.source> 
     <maven.compiler.target>1.7</maven.compiler.target> 
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> 
    </properties> 
    <dependencies> 
     <dependency> 
      <groupId>org.jasig.cas</groupId> 
      <artifactId>cas-server-webapp</artifactId> 
      <version>${cas.version}</version> 
      <type>war</type> 
      <scope>runtime</scope> 
     </dependency> 
    </dependencies> 
    <build> 
     <plugins> 
      <plugin> 
       <groupId>org.apache.maven.plugins</groupId> 
       <artifactId>maven-war-plugin</artifactId> 
       <version>2.6</version> 
       <configuration> 
        <warName>cas</warName> 
        <failOnMissingWebXml>false</failOnMissingWebXml> 
        <overlays> 
         <overlay> 
          <groupId>org.jasig.cas</groupId> 
          <artifactId>cas-server-webapp</artifactId> 
         </overlay> 
        </overlays> 
       </configuration> 
      </plugin> 
      <plugin> 
       <groupId>org.apache.maven.plugins</groupId> 
       <artifactId>maven-compiler-plugin</artifactId> 
       <version>3.3</version> 
       <configuration> 
        <source>1.7</source> 
        <target>1.7</target> 
       </configuration> 
      </plugin> 
      <plugin> 
       <groupId>org.eclipse.jetty</groupId> 
       <artifactId>jetty-maven-plugin</artifactId> 
       <version>${maven-jetty-plugin.version}</version> 
       <configuration> 
        <jettyXml>${basedir}/etc/jetty/jetty.xml</jettyXml> 
        <systemProperties> 
         <systemProperty> 
          <name>org.eclipse.jetty.annotations.maxWait</name> 
          <value>240</value> 
         </systemProperty> 
        </systemProperties> 
        <webApp> 
         <contextPath>/cas</contextPath> 
         <overrideDescriptor>${basedir}/etc/jetty/web.xml</overrideDescriptor> 
        </webApp> 
        <webAppConfig> 
         <allowDuplicateFragmentNames>true</allowDuplicateFragmentNames> 
        </webAppConfig> 
        <jvmArgs>-Dlog4j.configurationFile=/etc/cas/log4j2.xml -Xdebug 
         -Xrunjdwp:transport=dt_socket,address=5000,server=y,suspend=n</jvmArgs> 
       </configuration> 
      </plugin> 
     </plugins> 
     <finalName>cas</finalName> 
    </build> 
</project> 

正如你可以看到，这两个解决方案启动CAS到一个独立的Web服务器，但我试图达到的东西是什么詹金斯做，它可以通过一个简单的命令行启动一个WAR文件：JAVA - jar CAS.war

有什么办法可以将Maven构建导出到通过Jetty嵌入的WAR文件中？

Tks，

Answer 1

此行为由CAS v5和Spring Boot自动提供。不要重新发明轮子。