blocks|key|36150|text|您可以使用Tomcat.addWebapp将war文件添加到嵌入式Tomcat。正如其javadoc所说，它“相当于将一个web应用程序添加到Tomcat的web应用程序目录中”。要在Spring+Boot中使用此接口，您需要使用一个自定义的TomcatEmbeddedServletContainerFactory子类：|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|36151|@Bean
public+EmbeddedServletContainerFactory+servletContainerFactory()+{
++++return+new+TomcatEmbeddedServletContainerFactory()+{

++++++++@Override
++++++++protected+TomcatEmbeddedServletContainer+getTomcatEmbeddedServletContainer(
++++++++++++++++Tomcat+tomcat)+{
++++++++++++//+Ensure+that+the+webapps+directory+exists
++++++++++++new+File(tomcat.getServer().getCatalinaBase(),+"webapps").mkdirs();

++++++++++++try+{
++++++++++++++++Context+context+=+tomcat.addWebapp("/foo",+"/path/to/foo.war");
++++++++++++++++//+Allow+the+webapp+to+load+classes+from+your+fat+jar
++++++++++++++++context.setParentClassLoader(getClass().getClassLoader());
++++++++++++}+catch+(ServletException+ex)+{
++++++++++++++++throw+new+IllegalStateException("Failed+to+add+webapp",+ex);
++++++++++++}
++++++++++++return+super.getTomcatEmbeddedServletContainer(tomcat);
++++++++}

++++};
}|code-block|syntax|javascript|36152|entityMap^0|5|G|3D|11|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@$9|N|A|O|B|C]|$9|P|A|Q|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|R|8|@]|D|@]|E|$I|J]]|$1|K|3|-4|5|6|7|S|8|@]|D|@]|E|$]]]|L|$]]

You can add a war file to embedded Tomcat using <code>Tomcat.addWebapp</code>. As its javadoc says, it's the "equivalent to adding a web application to Tomcat's web apps directory". To use this API in Spring Boot, you need to use a custom <code>TomcatEmbeddedServletContainerFactory</code> subclass:

<pre class="lang-java prettyprint-override"><code>@Bean
public EmbeddedServletContainerFactory servletContainerFactory() {
 return new TomcatEmbeddedServletContainerFactory() {

 @Override
 protected TomcatEmbeddedServletContainer getTomcatEmbeddedServletContainer(
 Tomcat tomcat) {
 // Ensure that the webapps directory exists
 new File(tomcat.getServer().getCatalinaBase(), "webapps").mkdirs();

 try {
 Context context = tomcat.addWebapp("/foo", "/path/to/foo.war");
 // Allow the webapp to load classes from your fat jar
 context.setParentClassLoader(getClass().getClassLoader());
 } catch (ServletException ex) {
 throw new IllegalStateException("Failed to add webapp", ex);
 }
 return super.getTomcatEmbeddedServletContainer(tomcat);
 }

 };
}
</code></pre>

blocks|key|35866|text|对于Spring+Boot2，我花了一段时间才弄明白这一点，因为没有一个答案对我完全有效。我最终想出了这个(仅供参考，我已经打开了SSL+)：WarRun.java，下面有Gradle依赖项来让它工作。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|35867|它提供了什么：|35868|带有上下文路径/+at+https://localhost:8070的嵌入式tomcat|offset|length|35869|https://localhost:8070/sample上的sample.war|35870|https://localhost:8070/yo上的SampleWebApp.war|35871|import+java.io.File;
import+java.io.IOException;
import+java.io.PrintStream;
import+java.util.Properties;
import+org.apache.catalina.Context;
import+org.apache.catalina.startup.Tomcat;
import+org.springframework.boot.SpringApplication;
import+org.springframework.boot.WebApplicationType;
import+org.springframework.boot.autoconfigure.SpringBootApplication;
import+org.springframework.boot.builder.SpringApplicationBuilder;
import+org.springframework.boot.web.embedded.tomcat.TomcatServletWebServerFactory;
import+org.springframework.boot.web.embedded.tomcat.TomcatWebServer;
import+org.springframework.boot.web.servlet.server.ServletWebServerFactory;
import+org.springframework.boot.web.servlet.support.SpringBootServletInitializer;
import+org.springframework.context.annotation.Bean;
import+org.springframework.context.annotation.ComponentScan;
import+org.springframework.context.annotation.Profile;
import+org.springframework.core.io.ClassPathResource;

@ComponentScan({+"com.towianski.controllers"+})
@SpringBootApplication
@Profile("server")
public+class+WarRun+extends+SpringBootServletInitializer+{

++++@Override
++++protected+SpringApplicationBuilder+configure(SpringApplicationBuilder+application)+{
++++++++return+application.sources(WarRun.class).web(++WebApplicationType.SERVLET+);
++++}

++++public+static+void+main(String[]+args)+{

++++++++SpringApplication+app+=+new+SpringApplication(WarRun.class);
++++++++System.out.println(+"Entered+WarRun.main");

++++++++String+loggingFile+=+"";
++++++++String+dir+=+"";

++++++++for+(+int+i+=+0;+i+<+args.length;+i%2B%2B+)
++++++++++++{
//++++++++++++logger.info(+"**+args+["+%2B+i+%2B+"]+="+%2B+args[i]+%2B+"="+);
++++++++++++System.out.println(+"**+args+["+%2B+i+%2B+"]+="+%2B+args[i]+%2B+"="+);
++++++++++++if+(+args[i].toLowerCase().startsWith(+"-dir"+)+)
++++++++++++++++{
++++++++++++++++dir+=+args[i].substring(+"-dir=".length()+);
++++++++++++++++}
++++++++++++else+if+(+args[i].toLowerCase().startsWith(+"--logging.file"+)+)
++++++++++++++++{
++++++++++++++++loggingFile+=+args[i].substring(+"--logging.file=".length()+);
++++++++++++++++stdOutFilePropertyChange(+loggingFile+);
++++++++++++++++stdErrFilePropertyChange(+loggingFile+);
++++++++++++++++}
++++++++++++}

++++++++Properties+properties+=+new+Properties();
//++++++++properties.setProperty(+"spring.resources.static-locations",
//+++++++++++++++++++++++++++++++"classpath:/home/stan/Downloads"+);
++++++++properties.setProperty(+"server.port",+"8070"+);
//++++++++System.setProperty("server.servlet.context-path",+"/prop");+++++<---+Will+set+embedded+Spring+Boot+Tomcat+context+path
++++++++properties.setProperty(+"spring.security.user.name",+"stan"+);
++++++++properties.setProperty(+"spring.security.user.password",+"stan"+);
++++++++System.out.println(+"Entered+WarRun.main+after+set+properties");
++++++++app.setDefaultProperties(properties);
++++++++System.out.println(+"Entered+WarRun.main+after+call+set+props.+before+app.run");

++++++++app.run(args);
++++++++System.out.println(+"Entered+WarRun.main+after+app.run()");
++++}

++++@Bean
++++public+ServletWebServerFactory+servletContainer()+{
++++++++return+new+TomcatServletWebServerFactory()+{
++++++++++++protected+TomcatWebServer+getTomcatWebServer(Tomcat+tomcat)+{
++++++++++++++++System.out.println(+"tomcat.getServer().getCatalinaBase()+="+%2B+tomcat.getServer().getCatalinaBase()+%2B+"="+);
++++++++++++++++new+File(tomcat.getServer().getCatalinaBase(),+"/webapps").mkdirs();
++++//++++++++++++try+{
++++//++++++++++++++++Files.copy(+(new+File(+"/home/stan/Downloads/sample.war"+)+).toPath(),+(new+File(+tomcat.getServer().getCatalinaBase()+%2B"/webapp/sample.war")+).toPath());
++++//++++++++++++}+catch+(IOException+ex)+{
++++//++++++++++++++++Logger.getLogger(WarRun.class.getName()).log(Level.SEVERE,+null,+ex);
++++//++++++++++++}
++++++++++++++++try+{
++++++++++++++++++++System.out.println(+"Entered+ServletWebServerFactory+servletContainer()");
++++++++++++++++++++Context+context2+=+tomcat.addWebapp("/sample",+new+ClassPathResource("file:/home/stan/Downloads/sample.war").getFile().toString());
++++++++++++++++++++Context+context3+=+tomcat.addWebapp("/yo",+new+ClassPathResource("file:/home/stan/Downloads/SampleWebApp.war").getFile().toString());
++++//++++++++++++++++Context+context+=+tomcat.addWebapp("/what",+new+ClassPathResource(+"file:"+%2B+tomcat.getServer().getCatalinaBase()+%2B"/webapps/sample.war"+).getFile().toString()+);

++++++++++++++++++++context2.setParentClassLoader(getClass().getClassLoader());
++++++++++++++++++++context3.setParentClassLoader(getClass().getClassLoader());

++++//++also+works+but+above+seems+better
++++//++++++++++++++++WebappLoader+loader2+=+new+WebappLoader(Thread.currentThread().getContextClassLoader());
++++//++++++++++++++++WebappLoader+loader3+=+new+WebappLoader(Thread.currentThread().getContextClassLoader());
++++//++++++++++++++++context2.setLoader(loader2);
++++//++++++++++++++++context3.setLoader(loader3);
++++++++++++++++}+catch+(IOException+ex)+{
++++++++++++++++++++ex.printStackTrace();
++++++++++++++++}
++++++++++++++++return+super.getTomcatWebServer(tomcat);
++++++++++++}
++++++++};
++++}
}|code-block|syntax|javascript|35872|Gradle：|35873|apply+plugin:+'war'

war+{
++++enabled+=+true
}

.+.+.+.
dependencies+{
++++compile("org.springframework.boot:spring-boot-starter:2.1.6.RELEASE")
++++compile("org.springframework.boot:spring-boot-starter-web:2.1.6.RELEASE")+
++++compile+group:+'org.apache.tomcat.embed',+name:+'tomcat-embed-jasper',+version:+'9.0.21'
++++compile("org.springframework.boot:spring-boot-starter-security:2.1.6.RELEASE")
++++compile+'org.apache.httpcomponents:httpclient:4.5.7'
++++compile+group:+'org.codehaus.groovy',+name:+'groovy-all',+version:+'2.5.6'
++++compile+fileTree(dir:+'libs',+include:+['*.jar'])
++++compile+'com.jcraft:jsch:0.1.55'

++++testCompile+group:+'junit',+name:+'junit',+version:+'4.12'
}|35874|entityMap|0|LINK|mutability|MUTABLE|url|https://localhost:8070/|1|https://localhost:8070/sample|2|https://localhost:8070/yo^0|0|0|C|M|0|0|0|T|1|0|0|P|2|0|0|0|0^^$0|@$1|2|3|4|5|6|7|16|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|17|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|18|8|@]|9|@$F|19|G|1A|1|1B]]|A|$]]|$1|H|3|I|5|6|7|1C|8|@]|9|@$F|1D|G|1E|1|1F]]|A|$]]|$1|J|3|K|5|6|7|1G|8|@]|9|@$F|1H|G|1I|1|1J]]|A|$]]|$1|L|3|M|5|N|7|1K|8|@]|9|@]|A|$O|P]]|$1|Q|3|R|5|6|7|1L|8|@]|9|@]|A|$]]|$1|S|3|T|5|N|7|1M|8|@]|9|@]|A|$O|P]]|$1|U|3|-4|5|6|7|1N|8|@]|9|@]|A|$]]]|V|$W|$5|X|Y|Z|A|$10|11]]|12|$5|X|Y|Z|A|$10|13]]|14|$5|X|Y|Z|A|$10|15]]]]

It took a while to figure this out for Spring Boot 2 as none of the answers fully worked for me. I finally came up with this (fyi I have SSL turned on): WarRun.java with Gradle dependencies below to make it work.

What it gives: 

embedded tomcat with context path / at <a href="https://localhost:8070" rel="nofollow noreferrer">https://localhost:8070</a>

sample.war at <a href="https://localhost:8070/sample" rel="nofollow noreferrer">https://localhost:8070/sample</a>

SampleWebApp.war at <a href="https://localhost:8070/yo" rel="nofollow noreferrer">https://localhost:8070/yo</a>

<pre><code>import java.io.File;
import java.io.IOException;
import java.io.PrintStream;
import java.util.Properties;
import org.apache.catalina.Context;
import org.apache.catalina.startup.Tomcat;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.WebApplicationType;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.builder.SpringApplicationBuilder;
import org.springframework.boot.web.embedded.tomcat.TomcatServletWebServerFactory;
import org.springframework.boot.web.embedded.tomcat.TomcatWebServer;
import org.springframework.boot.web.servlet.server.ServletWebServerFactory;
import org.springframework.boot.web.servlet.support.SpringBootServletInitializer;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Profile;
import org.springframework.core.io.ClassPathResource;

@ComponentScan({ "com.towianski.controllers" })
@SpringBootApplication
@Profile("server")
public class WarRun extends SpringBootServletInitializer {

 @Override
 protected SpringApplicationBuilder configure(SpringApplicationBuilder application) {
 return application.sources(WarRun.class).web( WebApplicationType.SERVLET );
 }

 public static void main(String[] args) {

 SpringApplication app = new SpringApplication(WarRun.class);
 System.out.println( "Entered WarRun.main");

 String loggingFile = "";
 String dir = "";

 for ( int i = 0; i &lt; args.length; i++ )
 {
// logger.info( "** args [" + i + "] =" + args[i] + "=" );
 System.out.println( "** args [" + i + "] =" + args[i] + "=" );
 if ( args[i].toLowerCase().startsWith( "-dir" ) )
 {
 dir = args[i].substring( "-dir=".length() );
 }
 else if ( args[i].toLowerCase().startsWith( "--logging.file" ) )
 {
 loggingFile = args[i].substring( "--logging.file=".length() );
 stdOutFilePropertyChange( loggingFile );
 stdErrFilePropertyChange( loggingFile );
 }
 }

 Properties properties = new Properties();
// properties.setProperty( "spring.resources.static-locations",
// "classpath:/home/stan/Downloads" );
 properties.setProperty( "server.port", "8070" );
// System.setProperty("server.servlet.context-path", "/prop"); &lt;--- Will set embedded Spring Boot Tomcat context path
 properties.setProperty( "spring.security.user.name", "stan" );
 properties.setProperty( "spring.security.user.password", "stan" );
 System.out.println( "Entered WarRun.main after set properties");
 app.setDefaultProperties(properties);
 System.out.println( "Entered WarRun.main after call set props. before app.run");

 app.run(args);
 System.out.println( "Entered WarRun.main after app.run()");
 }

 @Bean
 public ServletWebServerFactory servletContainer() {
 return new TomcatServletWebServerFactory() {
 protected TomcatWebServer getTomcatWebServer(Tomcat tomcat) {
 System.out.println( "tomcat.getServer().getCatalinaBase() =" + tomcat.getServer().getCatalinaBase() + "=" );
 new File(tomcat.getServer().getCatalinaBase(), "/webapps").mkdirs();
 // try {
 // Files.copy( (new File( "/home/stan/Downloads/sample.war" ) ).toPath(), (new File( tomcat.getServer().getCatalinaBase() +"/webapp/sample.war") ).toPath());
 // } catch (IOException ex) {
 // Logger.getLogger(WarRun.class.getName()).log(Level.SEVERE, null, ex);
 // }
 try {
 System.out.println( "Entered ServletWebServerFactory servletContainer()");
 Context context2 = tomcat.addWebapp("/sample", new ClassPathResource("file:/home/stan/Downloads/sample.war").getFile().toString());
 Context context3 = tomcat.addWebapp("/yo", new ClassPathResource("file:/home/stan/Downloads/SampleWebApp.war").getFile().toString());
 // Context context = tomcat.addWebapp("/what", new ClassPathResource( "file:" + tomcat.getServer().getCatalinaBase() +"/webapps/sample.war" ).getFile().toString() );

 context2.setParentClassLoader(getClass().getClassLoader());
 context3.setParentClassLoader(getClass().getClassLoader());

 // also works but above seems better
 // WebappLoader loader2 = new WebappLoader(Thread.currentThread().getContextClassLoader());
 // WebappLoader loader3 = new WebappLoader(Thread.currentThread().getContextClassLoader());
 // context2.setLoader(loader2);
 // context3.setLoader(loader3);
 } catch (IOException ex) {
 ex.printStackTrace();
 }
 return super.getTomcatWebServer(tomcat);
 }
 };
 }
}
</code></pre>

Gradle:

<pre><code>apply plugin: 'war'

war {
 enabled = true
}

. . . .
dependencies {
 compile("org.springframework.boot:spring-boot-starter:2.1.6.RELEASE")
 compile("org.springframework.boot:spring-boot-starter-web:2.1.6.RELEASE") 
 compile group: 'org.apache.tomcat.embed', name: 'tomcat-embed-jasper', version: '9.0.21'
 compile("org.springframework.boot:spring-boot-starter-security:2.1.6.RELEASE")
 compile 'org.apache.httpcomponents:httpclient:4.5.7'
 compile group: 'org.codehaus.groovy', name: 'groovy-all', version: '2.5.6'
 compile fileTree(dir: 'libs', include: ['*.jar'])
 compile 'com.jcraft:jsch:0.1.55'

 testCompile group: 'junit', name: 'junit', version: '4.12'
}
</code></pre>

blocks|key|2503573|text|公认的答案包括Spring+Boot+1.x。所提到的类在Spring+Boot2.x中不再存在。使用版本2时，您需要使用不同的版本：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2503574|++++@Bean
++++@ConditionalOnProperty(name+=+"external.war.file")
++++public+TomcatServletWebServerFactory+servletContainerFactory(@Value("${external.war.file}")+String+path,
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++@Value("${external.war.context:}")+String+contextPath)+{
++++++++return+new+TomcatServletWebServerFactory()+{

++++++++++++@Override
++++++++++++protected+TomcatWebServer+getTomcatWebServer(Tomcat+tomcat)+{
++++++++++++++++new+File(tomcat.getServer().getCatalinaBase(),+"webapps").mkdirs();

++++++++++++++++Context+context+=+tomcat.addWebapp(contextPath,+path);
++++++++++++++++context.setParentClassLoader(getClass().getClassLoader());

++++++++++++++++return+super.getTomcatWebServer(tomcat);
++++++++++++}

++++++++};
++++}|code-block|syntax|javascript|2503575|另外，Spring+boot嵌入式Tomcat在默认情况下不包含JSP的依赖项。如果您在外部war中使用JSP，则需要包含它们。|2503576|<dependency>
++++<groupId>org.apache.tomcat.embed</groupId>
++++<artifactId>tomcat-embed-jasper</artifactId>
</dependency>
<dependency>
++++<groupId>javax.servlet</groupId>
++++<artifactId>jstl</artifactId>
</dependency>|2503577|更新:我已经编写了a+more+detailed+blog+post+on+how+to+set+this+up+for+both+Spring+Boot+1+and+2。|offset|length|2503578|entityMap|0|LINK|mutability|MUTABLE|url|https://www.vojtechruzicka.com/spring-boot-add-war-to-embedded-tomcat/^0|0|0|0|0|9|24|0|0^^$0|@$1|2|3|4|5|6|7|W|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|X|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|Y|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|Z|8|@]|9|@]|A|$E|F]]|$1|K|3|L|5|6|7|10|8|@]|9|@$M|11|N|12|1|13]]|A|$]]|$1|O|3|-4|5|6|7|14|8|@]|9|@]|A|$]]]|P|$Q|$5|R|S|T|A|$U|V]]]]

The accepted answer covers Spring Boot 1.x. The class mentioned is no longer present in Spring Boot 2.x. When using version 2, you need to use a different one:

<pre><code> @Bean
 @ConditionalOnProperty(name = "external.war.file")
 public TomcatServletWebServerFactory servletContainerFactory(@Value("${external.war.file}") String path,
 @Value("${external.war.context:}") String contextPath) {
 return new TomcatServletWebServerFactory() {

 @Override
 protected TomcatWebServer getTomcatWebServer(Tomcat tomcat) {
 new File(tomcat.getServer().getCatalinaBase(), "webapps").mkdirs();

 Context context = tomcat.addWebapp(contextPath, path);
 context.setParentClassLoader(getClass().getClassLoader());

 return super.getTomcatWebServer(tomcat);
 }

 };
 }
</code></pre>

Also, Spring boot enbedded Tomcat does not by default contain dependencies for JSPs. If you are using JSPs in your external war, you need to include them.

<pre><code>&lt;dependency&gt;
 &lt;groupId&gt;org.apache.tomcat.embed&lt;/groupId&gt;
 &lt;artifactId&gt;tomcat-embed-jasper&lt;/artifactId&gt;
&lt;/dependency&gt;
&lt;dependency&gt;
 &lt;groupId&gt;javax.servlet&lt;/groupId&gt;
 &lt;artifactId&gt;jstl&lt;/artifactId&gt;
&lt;/dependency&gt;
</code></pre>

UPDATE: I've written <a href="https://www.vojtechruzicka.com/spring-boot-add-war-to-embedded-tomcat/" rel="noreferrer">a more detailed blog post on how to set this up for both Spring Boot 1 and 2</a>.

Spring Boot's embedded tomcat is very handy, for both development and deploy.

But what if an another (3rd-party) WAR file (for example, GeoServer) should be added?

Perhaps the following is the normal procedure:

<ol>
<li>Install a normal Tomcat server.</li>
<li>Build the Spring Boot application as a WAR file, and add it to the webapps folder of the Tomcat.</li>
<li>Also add an another (3rd-party) WAR file to the webapps folder.</li>
</ol>

But it would be nice if the following configuration were possible.

<ol>
<li>Build the Spring boot application as a standalone Jar, which includes the embedded Tomcat.</li>
<li>Deploy the Spring boot application Jar.</li>
<li>Add an another (3rd-party) WAR file to a folder which the embedded Tomcat recognizes.</li>
<li>Serve both the Spring boot application contents and the another WAR's contents using the embedded Tomcat.</li>
</ol>

How can it be done?

UPDATE

When the spring boot application is made of fat jar(=executable jar), the code in the answer is not enough. The revised one is as follows:

<pre><code>@Bean
public EmbeddedServletContainerFactory servletContainerFactory() {
 return new TomcatEmbeddedServletContainerFactory() {

 @Override
 protected TomcatEmbeddedServletContainer getTomcatEmbeddedServletContainer(
 Tomcat tomcat) {
 try {
 Context context = tomcat.addWebapp("/foo", "/path/to/foo.war");
 WebappLoader loader =
 new WebappLoader(Thread.currentThread().getContextClassLoader());
 context.setLoader(loader);
 } catch (ServletException ex) {
 throw new IllegalStateException("Failed to add webapp", ex);
 }
 return super.getTomcatEmbeddedServletContainer(tomcat);
 }

 };
}
</code></pre>

Since the jar files in a fat jar cannot be loaded by the system classloader, an explicit parent classloader must be specified. Otherwise, the additional WAR cannot load the library jars in the fat jar of the spring boot application that added the WAR.

Spring Boot: How to add another WAR files to the embedded tomcat?

Spring Boot

服务器

Spring Boot的嵌入式tomcat非常方便，无论是开发还是部署。但是，如果需要添加另一个(第三方) WAR文件(例如，GeoServer)，该怎么办？也许以下是正常的过程：安装普通的Tomcat服务器。将Spring Boot应用程序构建为WAR文件，并将其添加到Tomcat的webapps文件夹中。还会将另一...

问Spring Boot:如何在嵌入式tomcat中添加另一个WAR文件？
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