Java Grizzly 和 Jersey 独立罐
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Grizzly and Jersey standalone jar
提问by André Ricardo
I am trying to package Grizzly with Jersey as a single jar using Maven shade plugin. But I always get the message No container provider supports the type class org.glassfish.grizzly.http.server.HttpHandler
我正在尝试使用 Maven 阴影插件将 Grizzly 与 Jersey 打包为单个 jar。但我总是收到消息No container provider supports the type class org.glassfish.grizzly.http.server.HttpHandler
The code works fine in Eclipse, but not in a packaged jar:
代码在 Eclipse 中工作正常，但在打包的 jar 中不工作：
public class Main {
private static URI getBaseURI() {
return UriBuilder.fromUri("http://localhost/").port(9998).build();
}
public static final URI BASE_URI = getBaseURI();
protected static HttpServer startServer() throws IOException {
System.out.println("Starting grizzly...");
ResourceConfig rc = new PackagesResourceConfig("share.test");
rc.getFeatures().put(JSONConfiguration.FEATURE_POJO_MAPPING, Boolean.TRUE);
return GrizzlyServerFactory.createHttpServer(BASE_URI, rc);
}
public static void main(String[] args) throws IOException {
HttpServer httpServer = startServer();
System.in.read();
httpServer.stop();
}
}
Here is the complete exception
这是完整的例外
$ java -jar target/webServiceTest-0.0.1-SNAPSHOT.jar
Starting grizzly...
Mar 20, 2012 12:48:53 PM com.sun.jersey.api.core.PackagesResourceConfig init
INFO: Scanning for root resource and provider classes in the packages:
share.test
Mar 20, 2012 12:48:54 PM com.sun.jersey.api.core.ScanningResourceConfig logClasses
INFO: Root resource classes found:
class share.test.NonJAXBBeanResource
class share.test.Hello
Mar 20, 2012 12:48:54 PM com.sun.jersey.api.core.ScanningResourceConfig init
INFO: No provider classes found.
Exception in thread "main" java.lang.IllegalArgumentException: No container provider supports the type class org.glassfish.grizzly.http.server.HttpHandler
at com.sun.jersey.api.container.ContainerFactory.createContainer(ContainerFactory.java:196)
at com.sun.jersey.api.container.ContainerFactory.createContainer(ContainerFactory.java:134)
at com.sun.jersey.api.container.grizzly2.GrizzlyServerFactory.createHttpServer(GrizzlyServerFactory.java:242)
at share.test.Main.startServer(Main.java:27)
at share.test.Main.main(Main.java:31)
I am building the jar package using maven with
我正在使用 maven 构建 jar 包
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-shade-plugin</artifactId>
<version>1.5</version>
<configuration>
<transformers>
<transformer implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
<manifestEntries>
<Main-Class>share.test.Main</Main-Class>
<Build-Number>1</Build-Number>
</manifestEntries>
</transformer>
</transformers>
</configuration>
<executions>
<execution>
<phase>package</phase>
<goals>
<goal>shade</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>
Do I need to change the shade plugin to include anything else?
我是否需要更改阴影插件以包含其他任何内容？
采纳答案by Martin Matula
The error looks like the plugin is not merging the META-INF/services records from different jars correctly - if there are multiple files with the same name in META-INF/services directory of several jars, they need to be merged, not replaced one by the other. Check if that is the case.
该错误看起来像插件没有正确合并来自不同 jar 的 META-INF/services 记录 - 如果在多个 jar 的 META-INF/services 目录中有多个同名文件，则需要将它们合并，而不是替换一个由另一个。检查是否是这种情况。
回答by Brian Ling
I just made the stupid mistake. Configure maven-assembly-plugin in pom as well.
我只是犯了一个愚蠢的错误。也在 pom 中配置 maven-assembly-plugin。
Assembly seems to replace META-INF/services and override "com.sun.jersey.server.impl.container.grizzly2.GrizzlyContainerProvider " in File com.sun.jersey.spi.container.ContainerProvider
Assembly 似乎替换了 META-INF/services 并覆盖了文件com.sun.jersey.spi.container.ContainerProvider 中的“com.sun.jersey.server.impl.container.grizzly2.GrizzlyContainerProvider”
As guide http://maven.apache.org/plugins/maven-assembly-plugin/mentioned, If your project wants to package your artifact in an uber-jar, the assembly plugin provides only basic support. For more control, use the Maven Shade Plugin.
正如http://maven.apache.org/plugins/maven-assembly-plugin/ 所提到的指南，如果您的项目想要将您的工件打包在 uber-jar 中，则程序集插件仅提供基本支持。如需更多控制，请使用 Maven Shade Plugin。
<!-- mvn assembly:assembly -->
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-assembly-plugin</artifactId>
<configuration>
<archive>
<manifest>
<addClasspath>true</addClasspath>
<mainClass>XXX.DaemonMain</mainClass>
</manifest>
</archive>
<descriptorRefs>
<descriptorRef>jar-with-dependencies</descriptorRef>
</descriptorRefs>
</configuration>
</plugin>
回答by Wolfgang Fahl
The following links helped me figuring out the solution below:
以下链接帮助我找出以下解决方案：
- http://maven.apache.org/guides/mini/guide-assemblies.html
- http://maven.apache.org/plugins/maven-assembly-plugin/descriptor-refs.html
- How can I merge resource files in a Maven assembly?
- http://maven.apache.org/guides/mini/guide-assemblies.html
- http://maven.apache.org/plugins/maven-assembly-plugin/descriptor-refs.html
- 如何在 Maven 程序集中合并资源文件？
especially the answer
特别是答案
Instead of using the jar-with-dependencies as the descriptorRef of your assembly-plugin configuration you create our own e.g. in src/assembly/depmerge.xml (see below). This assembly configuration will add a containerDescriptorHandler that cares for the META-INF/services.
而不是使用 jar-with-dependencies 作为你的程序集插件配置的 descriptorRef 你创建我们自己的例如在 src/assembly/depmerge.xml （见下文）。此程序集配置将添加一个负责 META-INF/服务的 containerDescriptorHandler。
run
跑
mvn clean compile assembly:single
to get a jar file in target which you can call with
在目标中获取一个 jar 文件，您可以调用它
java -jar target/x.y.-version-jar-with-dependencies.jar
pom.xml:
pom.xml:
<plugin>
<artifactId>maven-assembly-plugin</artifactId>
<version>2.5.3</version>
<configuration>
<archive>
<manifest>
<mainClass>${mainClass}</mainClass>
</manifest>
</archive>
<descriptor>src/assembly/depmerge.xml</descriptor>
</configuration>
</plugin>
src/assembly/depmerge.xml:
src/assembly/depmerge.xml：
<!--
see http://maven.apache.org/guides/mini/guide-assemblies.html
see http://maven.apache.org/plugins/maven-assembly-plugin/descriptor-refs.html
-->
<assembly
xmlns="http://maven.apache.org/plugins/maven-assembly-plugin/assembly/1.1.2"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/plugins/maven-assembly-plugin/assembly/1.1.2 http://maven.apache.org/xsd/assembly-1.1.2.xsd">
<!-- TODO: a jarjar format would be better -->
<id>jar-with-dependencies-and-services</id>
<formats>
<format>jar</format>
</formats>
<includeBaseDirectory>false</includeBaseDirectory>
<dependencySets>
<dependencySet>
<outputDirectory>/</outputDirectory>
<useProjectArtifact>true</useProjectArtifact>
<unpack>true</unpack>
<scope>runtime</scope>
</dependencySet>
</dependencySets>
<!--
https://stackoverflow.com/questions/1607220/how-can-i-merge-resource-files-in-a-maven-assembly
-->
<containerDescriptorHandlers>
<containerDescriptorHandler>
<handlerName>metaInf-services</handlerName>
</containerDescriptorHandler>
</containerDescriptorHandlers>
</assembly>
