无法在辅助项目的 maven-jaxb2-plugin 中扩展基本模式

问题描述 投票：0回答：1

我无法从另一个项目扩展 xsd 模式。

我在 jar 项目 (ModelBase:jar) 中有一个 basemodel.xsd，它还包含通过 maven-jaxb2-plugin 生成的类。 我正在尝试在另一个项目（测试）中扩展该模型，使用 basemodel.xsd 作为依赖项

这里设置：

模型库中的

basemodel.xsd:jar

<?xml version="1.0" encoding="UTF-8"?>
<xs:schema xmlns:tnsBaseModel="h-spamfilter-p://it.test.base.model" xmlns:xs="h-spamfilter-p://www.w3.org/2001/XMLSchema" xmlns:jaxb="h-spamfilter-p://java.sun.com/xml/ns/jaxb" targetNamespace="h-spamfilter-p://it.test.base.model" version="1.0" jaxb:version="2.1">
    <xs:complexType name="requestBase">
                  <xs:sequence>
            <xs:element name="errorMSG" type="xs:string" minOccurs="0"/>
        </xs:sequence>
    </xs:complexType>
</xs:schema>

model2.xsd 在测试中：jar

<?xml version="1.0" encoding="UTF-8"?>
<xs:schema xmlns:tns="h-spamfilter-p://it.test.newmodel" xmlns:tnsBaseModel="h-spamfilter-p://it.test.base.model" xmlns:xs="h-spamfilter-p://www.w3.org/2001/XMLSchema" xmlns:jaxb="h-spamfilter-p://java.sun.com/xml/ns/jaxb" 
xmlns:annox="h-spamfilter-p://annox.dev.java.net" targetNamespace="h-spamfilter-p://it.test.newmodel" version="1.0" jaxb:version="2.1"
 jaxb:extensionBindingPrefixes="annox">
    <xs:import namespace="h-spamfilter-p://it.test.base.model"/>
        <xs:complexType name="testInfo">
        <xs:complexContent>
            <xs:extension base="tnsBaseModel:requestBase">
                <xs:sequence>
                    <xs:element name="body" type="tns:other"/>
                </xs:sequence>
            </xs:extension>
        </xs:complexContent>
    </xs:complexType>

请注意没有显式 schemaLocation 的导入。

测试：jar pom：

<plugin>
            <groupId>org.jvnet.jaxb2.maven2</groupId>
            <artifactId>maven-jaxb2-plugin</artifactId>
            <version>0.14.0</version>
            <executions>
                <execution>
                        <goals>
                            <goal>generate</goal>
                        </goals>
                        <phase>generate-sources</phase>
                </execution>
            </executions>
            <configuration>
                 <generateDirectory>${project.build.directory}/generated-sources/annotations/</generateDirectory>
                <cleanPackageDirectories>true</cleanPackageDirectories>
                <forceRegenerate>true</forceRegenerate>
                <schemas>
                  <schema>       
                    <fileset>
                        <directory>${project.basedir}/src/main/resources</directory>
                        <includes>
                            <include>model2.xsd</include>
                        </includes>
                    </fileset>
                   </schema>
                    <schema>
                       <dependencyResource>
                            <groupId>it.test</groupId>
                             <artifactId>ModelBase</artifactId>
                            <version>${modelbase.version}</version>
                            <resource>basemodel.xsd</resource>
                        </dependencyResource>
                    </schema>
                </schemas>
            </configuration>
        </plugin>

mvn -X 输出：

...

[INFO] dependsURIs (resolved):[file:/Users/computer/Documents/eclipse-workspace/test/src/main/resource/catalog.cat, file:/Users/computer/Documents/eclipse-workspace/test/src/main/resources/model2.xsd, file:/Users/computer/Documents/eclipse-workspace/test/src/main/resources/model2.xsd, jar:file:/Users/computer/.m2/repository/it/test/ModelBase/trunk-SNAPSHOT/ModelBase-trunk-SNAPSHOT.jar!/basemodel.xsd, file:/Users/computer/Documents/eclipse-workspace/test/pom.xml]
[INFO] optionsConfiguration:OptionsConfiguration [specVersion=2.2
 generateDirectory=/Users/computer/Documents/eclipse-workspace/test/target/generated-sources/annotations
 generatePackage=null
 schemaLanguage=null
 grammars.systemIds=[file:/Users/computer/Documents/eclipse-workspace/test/src/main/resources/model2.xsd, file:/Users/computer/Documents/eclipse-workspace/test/src/main/resources/model2.xsd, maven:it.test:ModelBase:jar::trunk-SNAPSHOT!/basemodel.xsd]
 bindFiles.systemIds=[]
 plugins=[]
 readOnly=false
 packageLevelAnnotations=true
 noFileHeader=false
 enableIntrospection=false
 disableXmlSecurity=true
 accessExternalSchema=all
 accessExternalDTD=all
 contentForWildcard=false
 extension=true
 strict=true
 verbose=true
 debugMode=false
 arguments=[-episode, /Users/computer/Documents/eclipse-workspace/test/target/generated-sources/annotations/META-INF/sun-jaxb.episode]]

[INFO] The [forceRegenerate] switch is turned on, XJC will be executed.
[INFO] Parsing input schema(s)...
[DEBUG] Resolving publicId [null], systemId [maven:it.test:ModelBase:jar::trunk-SNAPSHOT!/basemodel.xsd].
resolveSystem(maven:it.test:ModelBase:jar::trunk-SNAPSHOT!/basemodel.xsd)
[DEBUG] Parent resolver has resolved publicId [null], systemId [maven:it.test:ModelBase:jar::trunk-SNAPSHOT!/basemodel.xsd] to [null].
[DEBUG] Resolving systemId [maven:it.test:ModelBase:jar::trunk-SNAPSHOT!/basemodel.xsd] as Maven dependency resource.
[DEBUG] Resolved dependency resource [Dependency {groupId=it.test, artifactId=ModelBase, version=trunk-SNAPSHOT, type=jar, classifier=null, resource=basemodel.xsd}] to resource URL [jar:file:/Users/computer/.m2/repository/it/test/ModelBase/trunk-SNAPSHOT/ModelBase-trunk-SNAPSHOT.jar!/basemodel.xsd].
[DEBUG] Resolved systemId [maven:it.test:ModelBase:jar::trunk-SNAPSHOT!/basemodel.xsd] to [jar:file:/Users/computer/.m2/repository/it/test/ModelBase/trunk-SNAPSHOT/ModelBase-trunk-SNAPSHOT.jar!/basemodel.xsd].
[DEBUG] Resolving publicId [h-spamfilter-p://it.test.base.model], systemId [null].
resolvePublic(h-spamfilter-p://it.test.base.model,null)
[DEBUG] Parent resolver has resolved publicId [h-spamfilter-p://it.test.base.model], systemId [null] to [null].
[ERROR] Error while parsing schema(s).Location [ file:/Users/computer/Documents/eclipse-workspace/test/src/main/resources/model2.xsd{1007,50}].
org.xml.sax.SAXParseException: src-resolve: Cannot resolve the name 'tnsBaseModel:requestBase' to a(n) 'type definition' component.
    at com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.createSAXParseException (ErrorHandlerWrapper.java:203)
    at com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.error (ErrorHandlerWrapper.java:134)
    at com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError (XMLErrorReporter.java:396)
    at com.sun.org.apache.xerces.internal.impl.xs.traversers.XSDHandler.reportSchemaErr (XSDHandler.java:4154)
    at com.sun.org.apache.xerces.internal.impl.xs.traversers.XSDHandler.reportSchemaError (XSDHandler.java:4137)
    at com.sun.org.apache.xerces.internal.impl.xs.traversers.XSDHandler.getGlobalDecl (XSDHandler.java:1684)
    at 
[DEBUG] Resolving publicId [null], systemId [maven:it.test:ModelBase:jar::trunk-SNAPSHOT!/basemodel.xsd].
resolveSystem(maven:it.test:ModelBase:jar::trunk-SNAPSHOT!/basemodel.xsd)
[DEBUG] Parent resolver has resolved publicId [null], systemId [maven:it.test:ModelBase:jar::trunk-SNAPSHOT!/basemodel.xsd] to [null].
[DEBUG] Resolving systemId [maven:it.test:ModelBase:jar::trunk-SNAPSHOT!/basemodel.xsd] as Maven dependency resource.
[DEBUG] Resolved dependency resource [Dependency {groupId=it.test, artifactId=ModelBase, version=trunk-SNAPSHOT, type=jar, classifier=null, resource=basemodel.xsd}] to resource URL [jar:file:/Users/computer/.m2/repository/it/test/ModelBase/trunk-SNAPSHOT/ModelBase-trunk-SNAPSHOT.jar!/basemodel.xsd].
[DEBUG] Resolved systemId [maven:it.test:ModelBase:jar::trunk-SNAPSHOT!/basemodel.xsd] to [jar:file:/Users/computer/.m2/repository/it/test/ModelBase/trunk-SNAPSHOT/ModelBase-trunk-SNAPSHOT.jar!/basemodel.xsd].
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time:  3.076 s
[INFO] Finished at: 2023-03-29T10:21:00+02:00
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.jvnet.jaxb2.maven2:maven-jaxb2-plugin:0.14.0:generate (default) on project test: Unable to parse input schema(s). Error messages should have been provided. -> [Help 1]
org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal org.jvnet.jaxb2.maven2:maven-jaxb2-plugin:0.14.0:generate (default) on project test: Unable to parse input schema(s). Error messages should have been provided.
    at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute2 (MojoExecutor.java:375)
    at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute (MojoExecutor.java:351)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:215)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:171)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:163)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:117)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:81)
    at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build (SingleThreadedBuilder.java:56)
    at org.apache.maven.lifecycle.internal.LifecycleStarter.execute (LifecycleStarter.java:128)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:294)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:192)
   
[ERROR] 
[ERROR] 
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] h-spamfilter-p://cwiki.apache.org/confluence/display/MAVEN/MojoExecutionException

我明白了

Cannot resolve the name 'tnsBaseModel:requestBase' to a(n) 'type definition' component.
， 添加 schemaLocation="basemodel.xsd" 导致获得
[WARNING] Error while parsing schema(s).Location [ file:/Users/computer/Documents/eclipse-workspace/test/src/main/resources/model2.xsd{5,94}]. org.xml.sax.SAXParseException: schema_reference.4: Failed to read schema document 'basemodel.xsd', because 1) could not find the document; 2) the document could not be read; 3) the root element of the document is not <xsd:schema>.

maven jaxb maven-jaxb2-plugin
1个回答
0
投票

HiSrc HigherJAXB Maven 插件 是 maven-jaxb2-plugin 的一个分支，可用于演示此 solution (zip)。该解决方案包括一个 catalog 和一个 episode 配置，用于从 basemodel.xsd 和 model2.xsd 生成 JAXB 类，其中第二个模式导入第一个模式以扩展名为 

requestBase
的复杂类型并定义一个元素/类型名为
testInfo
.

A catalog 是包含“映射”信息的逻辑结构。为了最佳地利用有关 XML 外部资源的信息，需要一些可互操作的方式将 XML 外部标识符中的信息映射到所需资源的 URI 引用。

episode 文件，通常是

*META-INF/sun-jaxb.episode*
，由 XJC（XML Schema to Java）编译器生成。它是一个架构 bindings 文件，将架构类型与 existing 类相关联。当您有一个由其他模式导入的 XML 模式时，它很有用，因为它可以防止重新生成模型。 XJC 将扫描 JARs 
*.episode files
，然后自动将它们用作绑定文件。

执行

这个解决方案（zip）是一个独立的多模块Maven项目。您可以使用以下方式运行测试：

mvn -Pall,test clean test
mvn -Ptest clean install
cd extend
mvn -Ptest clean test
mvn -Pexec clean compile exec:java

只需第一次执行即可演示解决方案，此output 显示测试结果。其他处决提供了更多见解，如下所示：

mvn -Pall,test clean test

此解决方案包含一个顶层POM 项目和两个子模块：

base
和
extend
。第一次执行的目标是使用 Maven 
reactor
 
clean
、compile 和 test all 三个项目。 注意： reactor 将所有模块保留在类路径上；因此，
extend
模块能够解析
base
模块，聪明.




mvn -Ptest clean install




要解决 
base
 工件 outside 的反应器，您需要将工件安装到本地存储库中。 注意：名为
test
的配置文件仅用于将SLF4J实现添加到其测试阶段的构建中。




cd extend




更改为 
extend
 子模块以在多模块反应器外部进行测试和执行。




mvn -Ptest clean test




使用 
test
 配置文件执行干净测试以进行 单元测试.




mvn -Pexec clean compile exec:java




执行一个简单的 Java application 来演示此示例 TestInfo.xml 的解组。 注意： 
exec
 配置文件将 simplelogger.properties 和 SLF4J implementation 添加到类路径中，仅用于此执行。




目录和剧集配置


因为model2.xsd导入basemodel.xsd中定义的命名空间，需要一个catalog.xml使用MavenCatalogResolver解析物理位置。


model2.xsd


...
<xs:import namespace="h-spamfilter-p://it.test.base.model"/>
...



在这种情况下，
namespace
是目录
publicId
的公共标识符。


catalog.xml


...
<public
    publicId="h-spamfilter-p://it.test.base.model"
    uri="maven:org.patrodyne.jvnet:hisrc-higherjaxb-sample-base-extend-base!/basemodel.xsd"
/>
...



目录将 
publicId
 解析为 
uri
，即物理位置。在这种情况下，物理位置在 
base
 罐子内。


剧集配置


因为base模块生成并提供了
RequestBase
类，你需要配置extend模块来使用
*META-INF/sun-jaxb.episode*
bindings来自base模块。


扩展/pom.xml


...
<plugin>
    <groupId>org.patrodyne.jvnet</groupId>
    <artifactId>hisrc-higherjaxb-maven-plugin</artifactId>
    <executions>
        <execution>
            <goals>
                <goal>generate</goal>
            </goals>
            <configuration>
                <episodes>
                    <episode>
                        <groupId>org.patrodyne.jvnet</groupId>
                        <artifactId>hisrc-higherjaxb-sample-base-extend-base</artifactId>
                    </episode>
                </episodes>
                <!-- Using catalogs to resolve schema URIs in strict mode is known to be problematic and may fail. -->
                <strict>false</strict>
                <catalog>src/main/resources/catalog.xml</catalog>
            </configuration>
        </execution>
    </executions>
</plugin>
...





重要提示： 您必须配置插件以使用您的catalog.xml 文件！




JAXB 类和情节生成


多模块Maven项目生成这些JAXB类，其中
TestInfo.java
扩展
RequestBase.java
：


base/target/generated-sources/xjc


├── h_spamfilter_p
│   └── it_test_base
│       ├── ObjectFactory.java
│       ├── package-info.java
│       └── RequestBase.java
└── META-INF
    └── sun-jaxb.episode



extend/target/generated-sources/xjc


├── h_spamfilter_p
│   └── it_test
│       ├── ObjectFactory.java
│       ├── package-info.java
│       └── TestInfo.java
└── META-INF
    └── sun-jaxb.episode



测试


JUnit 测试类 RequestBaseTest 和 TestInfoTest，扫描示例文件并调用方法 
checkSample(File sample)
 将每个文件提供给测试人员。对于这个项目，一个
JAXBContext
被创建并且样本路径中的每个文件被unmarshaled到一个
base-extend
对象。成功后，
base-extend
 对象被 marshaled 用于记录和您的审查。


    

      

      
    

  

  

    
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