只有当依赖性组装成一个罐子时才会抛出泽西异常 [英] Jersey exception only thrown when depencencies assembled into a single jar

问题描述

我正在编写一个嵌入Jetty w / Jersey的服务器。当我从Eclipse执行时，一切都很棒。但是，如果我使用Maven的程序集将我的服务器和所有依赖项组装到一个jar中：单个目标，我会得到一个例外：

I'm writing a server that embeds Jetty w/ Jersey. When I execute from Eclipse, everything is great. However, if I assemble my server and all dependencies into a single jar using Maven's assembly:single goal, I get an exception:

Sep 26, 2012 5:35:59 PM com.sun.jersey.spi.container.ContainerResponse write
SEVERE: A message body writer for Java class com.acme.server.webservice.
exception.WebServiceFailure, and Java type class com.acme.server.webserv
ice.exception.WebServiceFailure, and MIME media type application/json was not fo
und
Sep 26, 2012 5:35:59 PM com.sun.jersey.spi.container.ContainerResponse write
SEVERE: The registered message body writers compatible with the MIME media type
are:
*/* ->
  com.sun.jersey.server.impl.template.ViewableMessageBodyWriter

17:35:59.372 [qtp184245201-22 - /] ERROR o.a.h.ReflectorServletProcessor - onReq
uest()
javax.ws.rs.WebApplicationException: com.sun.jersey.api.MessageException: A mess
age body writer for Java class com.acme.server.webservice.exception.WebS
erviceFailure, and Java type class com.acme.server.webservice.exception.
WebServiceFailure, and MIME media type application/json was not found
        at com.sun.jersey.spi.container.ContainerResponse.write(ContainerRespons
e.java:285) ~[vma-server-0.0.1-SNAPSHOT-jar-with-dependencies.jar:na]
        at com.sun.jersey.server.impl.application.WebApplicationImpl._handleRequ
est(WebApplicationImpl.java:1457) ~[server-0.0.1-SNAPSHOT-jar-with-dependenc
ies.jar:na]

...

完整的跟踪在这里，如果它有用：
https://gist.github.com/3790817

The full trace is here, if it's useful: https://gist.github.com/3790817

Maven在创建jar-with时不会抛出任何错误-dependencies。

Maven throws no errors while creating the jar-with-dependencies.

我是Maven的新手和Java的部署，我真的不确定如何继续调试。

I'm a novice with Maven and deployment of Java, and I'm really not sure how to proceed with debugging.

此外，虽然我需要解决这个问题，但我也很欣赏任何建议的解决方法，因为我需要尽快生成我的服务器的可执行演示版本Pointy- Haired Boss（tm）可以在没有Eclipse的情况下执行。

Also, while I need to solve this issue I'd also appreciate any suggested work-arounds as I need to produce an executable demo of my server ASAP that a Pointy-Haired Boss (tm) can execute without Eclipse.

解决方案：

基于在Pavel的回答中，我删除了maven-assemly-plugin，转而使用maven-shade-plugin。这是适用于我的阴影配置：

Based on Pavel's answer, I dropped the maven-assemly-plugin in favor of maven-shade-plugin. Here's the shade configuration that worked for me:

        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-shade-plugin</artifactId>
            <version>2.0</version>
            <executions>
                <execution>
                    <phase>package</phase>
                    <goals>
                        <goal>shade</goal>
                    </goals>
                    <configuration>
                        <transformers>
                        <!--  use transformer to handle merge of META-INF/services - see http://java.net/jira/browse/JERSEY-440?focusedCommentId=14822&page=com.atlassian.jira.plugin.system.issuetabpanels%3Acomment-tabpanel#action_14822 -->
                            <transformer
                                implementation="org.apache.maven.plugins.shade.resource.ServicesResourceTransformer" />
                        </transformers> 
                        <filters>
                            <!--  filter to address "Invalid signature file" issue - see http://stackoverflow.com/a/6743609/589215-->
                            <filter>
                                <artifact>*:*</artifact>
                                <excludes>
                                    <exclude>META-INF/*.SF</exclude>
                                    <exclude>META-INF/*.DSA</exclude>
                                    <exclude>META-INF/*.RSA</exclude>
                                </excludes>
                            </filter>
                        </filters>
                    </configuration>
                </execution>
            </executions>
        </plugin>

推荐答案

您没有正确合并泽西岛罐子。

You are not merging Jersey jars correctly.

Jersey 1.x使用META-INF /服务机制来发现它的组件和程序集：single可能只是将所有内容复制到单个jar中，覆盖已经存在的文件但是META-INF / services文件（s）需要加强。

Jersey 1.x uses META-INF/services mechanism to discover its components and assembly:single probably just copies everything into single jar, overriding already present files BUT META-INF/services file(s) needs to be CONCATENATED.

尝试使用jersey-bundle（ com.sun.jersey：jersey-bundle：1.14 ）或修复你的程序集设置（或找到另一个插件来做得更好）。

Try using jersey-bundle (com.sun.jersey:jersey-bundle:1.14) or fix your assembly settings (or find another plugin to do it better).

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