Applying external JAXB binding file to schema elements imported from WSDL

问题

The XPath expression in my external binding files can't target the elements in my XML schemas which are imported into my WSDL.

Everything runs if I do inline binding customization but I really wanted to have external binding files that way I never accidentally overwrite(refresh) the files containing my customizations.

The start of my binding file:

<jaxb:bindings
    xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/"
    xmlns:xsd="http://www.w3.org/2001/XMLSchema"
    xmlns:xs="http://www.w3.org/2001/XMLSchema"
    xmlns:jaxb="http://java.sun.com/xml/ns/jaxb"
    xmlns:jaxws="http://java.sun.com/xml/ns/jaxws"
    version="2.1">
    <jaxb:bindings schemaLocation="../wsdl/localhost_7001/ExampleSessionBean/ExampleSessionBeanService.wsdl#types?schema1">
        <jaxb:bindings node="//xs:schema[@targetNamespace='urn:myExample']">

My WSDL contains:

<types>
<xsd:schema>
<xsd:import namespace="urn:myExample" schemaLocation="http://localhost:7001/ExampleSessionBean/ExampleSessionBeanService?xsd=1"/>
</xsd:schema>
<xsd:schema>
<xsd:import namespace="http://ejbs/" schemaLocation="http://localhost:7001/ExampleSessionBean/ExampleSessionBeanService?xsd=2"/>
</xsd:schema>
</types>

No matter what I do XPath can't find anything in the xsd:import'ed schemas. The error I get is:

[ERROR] XPath evaluation of "//xs:schema[@targetNamespace='urn:myExample']" results in empty target node

I've tried accessing the xs:schema by index number instead of the namespace and that doesn't work either. It seems like my XPath expressions can't reach elements from imported schemas...is there anyway to fix this?

This is a Java SE 7 project being developed under NetBean 7.2. I'm using NetBeans to do all my wsimport stuff if that matters but the command output looks fairly standard for RI/Metro.

EDIT: I figured out that I can get an external binding file to work if I use SCD. This XPath example doesn't work:

<bindings node="//xsd:schema[@targetNamespace='urn:myExample']">
    <bindings node="//xs:complexType[@name='myType']">
        <class name="MyClass"/>
    </bindings>
</bindings>

But this SCD example does.

<bindings scd="x-schema::tns" xmlns:tns="urn:myExample">
    <bindings scd="~tns:myType">
        <class name="MyClass"/>
    </bindings>
</bindings>

Is this a known thing where XPath doesn't work in xjb files when using wsimport but SCD does?

回答1:

you should use it like:

<jaxws:bindings node="wsdl:definitions/wsdl:types/xsd:schema[@targetNamespace='http://duke.example.org']">
    <jaxb:schemaBindings>
        <jaxb:package name="fromwsdl.server"/>
    </jaxb:schemaBindings>
</jaxws:bindings>

Be careful with the namespaces

It all is explained here: https://jax-ws.java.net/nonav/2.1.2/docs/customizations.html

回答2:

You could compile each of the XML schemas to Java classes individually. Then you can leverage episode files so that the generated classes can be used when you compile schemas that import that XML schema.

Below is an example of how you produce an episode file.

xjc -b binding1.xml -episode common.episode common.xsd

And below is an example of how you consume and episode file. The episode file is just a JAXB external bindings file and therefore is specified using the -b flag.

xjc -d out main.xsd -extension -b common.episode

For More Information

http://blog.bdoughan.com/2011/12/reusing-generated-jaxb-classes.html

回答3:

For new people, you can simply use two binding files, one applied to wsdl and other applied to the schema by using the -b option of wsdl2java cxf code generation class accepts multiple binding files:

<java classname="org.apache.cxf.tools.wsdlto.WSDLToJava" fork="true">
    <arg value="-d"/>
    <arg value="${src}"/>
    <arg value="-b"/>
    <arg value="${wsdl.home}\jaxws-bindings.xml"/>
    <arg value="-b"/>
    <arg value="${wsdl.home}\jaxb-bindings.xml"/>
    <arg value="${wsdl.home}\YOUR_WSDL.wsdl"/>
    <classpath>
        <path refid="cxf.classpath"/>
    </classpath>
</java>

Content of file 'jaxws-bindings.xml':

<jaxws:bindings wsdlLocation="YOUR_WSDL.wsdl"
                xmlns:jaxws="http://java.sun.com/xml/ns/jaxws"
                xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/"
                xmlns:xs="http://www.w3.org/2001/XMLSchema">
    <jaxws:enableWrapperStyle>false</jaxws:enableWrapperStyle>
</jaxws:bindings>

Content of 'jaxb-bindings.xml':

<jaxb:bindings xmlns:jaxb="http://java.sun.com/xml/ns/jaxb"
               xmlns:xsd="http://www.w3.org/2001/XMLSchema" 
               jaxb:version="2.0">
    <jaxb:bindings schemaLocation="ManagePartyCustomerDataManagement_PARTY_G7-IOP_In_1.0.xsd">
        <jaxb:bindings node="//xsd:element[@name='eventDate']">
            <jaxb:javaType name="java.util.Date" 
                       parseMethod="com.sofrecom.gaia.ebs.provider.utils.jaxb.StringDateAdapter.parseDate"
                       printMethod="com.sofrecom.gaia.ebs.provider.utils.jaxb.StringDateAdapter.printDate" />
  </jaxb:bindings>

回答4:

Adding this section to my JAXB configuration helped to do away with a similar error:

<jaxws:bindings xmlns:jaxws="http://java.sun.com/xml/ns/jaxws">
   <jaxws:enableWrapperStyle>true</jaxws:enableWrapperStyle>
   <jaxws:enableAsyncMapping>false</jaxws:enableAsyncMapping>
</jaxws:bindings>

Complete configuration:

<?xml version="1.0" encoding="UTF-8"?>
<jaxb:bindings version="2.1" 
                xmlns:jaxb="http://java.sun.com/xml/ns/jaxb" 
                xmlns:xjc="http://java.sun.com/xml/ns/jaxb/xjc"
                xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/"
                xmlns:xs="http://www.w3.org/2001/XMLSchema">

    <jaxws:bindings xmlns:jaxws="http://java.sun.com/xml/ns/jaxws">
        <jaxws:enableWrapperStyle>true</jaxws:enableWrapperStyle>
        <jaxws:enableAsyncMapping>false</jaxws:enableAsyncMapping>
    </jaxws:bindings>

    <jaxb:bindings schemaLocation="ContactService.wsdl" node="/wsdl:definitions/wsdl:types/xs:schema">
        <jaxb:schemaBindings>
            <jaxb:package name="za.org.kuali.kfs.sys.integration.iapi.contactservice"/>
        </jaxb:schemaBindings>
    </jaxb:bindings>

</jaxb:bindings>

Credits:

https://stackoverflow.com/a/7890753/315385
https://stackoverflow.com/a/38077750/315385

来源：https://stackoverflow.com/questions/15079913/applying-external-jaxb-binding-file-to-schema-elements-imported-from-wsdl

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