wsimport - 'XXX' 已经定义，第一个定义出现在这里

问题描述 投票：0回答：1

我正在使用 WSDL 生成 Java 类，该 WSDL 导入并包含大量其他模式和 DTD，而这些模式和 DTD 又相互引用。 （这是臭名昭著的“标准”XTA2 V3 WSDL，仅举个例子）

我收到的错误消息如下所示：

[ERROR] 'NonEmptyStringType' is already defined
  Zeile 17 von file:/C:/Users/itbc000257/Documents/projekte/km-tafe/src/main/resources/META-INF/wsdl/OSCI_MessageMetaData_V2.02.xsd
[ERROR] (related to above error) the first definition appears here
  Zeile 12 von file:/C:/Users/itbc000257/Documents/projekte/km-tafe/src/main/resources/META-INF/wsdl/OSCI_MessageMetaData_V2.02.xsd
jaxb wsimport jaxws-maven-plugin xta osci
1个回答
0
投票

该错误是由架构导入引起的，其中一个架构使用相对路径引用 

schemaLocation
，而其他架构则使用绝对 http URL。

OSCI2_02.xsd 使用相对的 

schemaLocation
:

<xs:import namespace="http://www.osci.eu/ws/2014/10/transport" 
  schemaLocation="OSCI_MessageMetaData_V2.02.xsd"/>

XTA.wsdl、XTA-synchron.wsdl、XTA-Webservice-Datentypen.xsd、XTA-Webservice-Globale-Elemente.xsd 使用绝对 

schemaLocation
URL：

<xsd:import namespace="http://www.osci.eu/ws/2014/10/transport"
  schemaLocation="http://www.osci.eu/ws/2014/10/transport/OSCI_MessageMetaData_V2.02.xsd"/>

来自 jaxb-ri 的 xjc 中存在一个长期存在的 bug，导致了此问题，并且后期的 Highsource 提出了修复方案，但从未将其纳入产品中。

就我而言，解决方法是下载所有相关架构，修复 OSCI2_02.xsd 架构导入以使用绝对 URL 并创建 jax-ws-catalog.xml，以便 wsimport 使用我修补的架构。

在下面找到我的设置。

模式文件的 WSDL 递归下载：

#!/bin/bash
# Anthony/Rabiaza
# 2018-02-31
# https://github.com/anthonyrabiaza/recursiveDownloader
# Patch by dschulten: load from absolute URLs and do not download already existing files to avoid endless loops

#wget parameters:
# -T 60: timeout of 60 sec  
# -nv: non verbose 
# -nc: skip downloads that would download to existing files
# --secure-protocol=TLSv1 --no-check-certificate: security related
wget_params="-T 60 -nv -nc --secure-protocol=TLSv1 --no-check-certificate


function help() {
    echo "Please run this utility with the URL of the WSDL/XSD as argument"
    echo -e "\tFor instance:"
    echo -e "\t$0 http://192.168.0.96:8080/HelloWorld_WebServiceProject/wsdl/HelloWorld.wsdl"
}

function download() {
    export filename=${1##*/}
    if [ "$filename" == "" ];
    then
        echo -e "\tError for $1"
        echo -ne "\t\t"
        return -1
    fi
    echo -e "\tDownloading $filename"
    echo -en "\t\twget -> "
    wget $wget_params $1
    echo ""
}

function getDependencies() {
    export nbOccurrences=`grep -Po 'schemaLocation' $1 | wc -l`
    
    echo "Grepped $nbOccurrences in $1"
    
    if [ $nbOccurrences -gt 0 ];
        then
            export dependencies=`grep -Po 'schemaLocation="\K.*?(?=")' $1`
            echo "$dependencies" | while read -r dependency
            do
                if [ ! -f ${dependency##*/} ] ; then
                    download $dependency
                    echo Filename: ${dependency##*/}
                    getDependencies ${dependency##*/}
                fi
            done
        else
            echo -e "\t\tNo more dependencies for $1"
    fi

}

if [ $# -lt 1 ];
    then help
    exit -1
fi

currentDir="$PWD"

echo "Recursive Downloader"
echo "Command:    $0"
echo "Parameters: $*"
echo ""
echo "Creating output folder"

mkdir -p output
cd output

export filename=${1##*/}
export serverPath=${1%/*}

echo "File to download $filename on $serverPath"

download $1

getDependencies $filename $serverPath

cd "$currentDir"

该脚本不下载 DTD，所以我还必须下载：

所有下载的文件都进入 src/main/resources/META-INF/wsdl。

同一文件夹中的以下 jax-ws-catalog.xml 告诉 wsimport 查找下载的文件，而不是从 Internet 下载它们：

<?xml version="1.0" encoding="UTF-8"?>
<catalog xmlns="urn:oasis:names:tc:entity:xmlns:xml:catalog" prefer="system">
    <system systemId="http://www.osci.eu/ws/2014/10/transport/OSCI_MessageMetaData_V2.02.xsd"
            uri="OSCI_MessageMetaData_V2.02.xsd"/>
    <system systemId="http://www.w3.org/2006/03/addressing/ws-addr.xsd" uri="ws-addr.xsd"/>
    <system systemId="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd"
            uri="oasis-200401-wss-wssecurity-secext-1.0.xsd"/>
    <system systemId="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd"
            uri="oasis-200401-wss-wssecurity-utility-1.0.xsd"/>
    <system systemId="http://www.w3.org/2001/xml.xsd" uri="xml.xsd"/>
    <system systemId="http://www.w3.org/TR/xmldsig-core/xmldsig-core-schema.xsd" uri="xmldsig-core-schema.xsd"/>
    <system systemId="http://xoev.de/schemata/basisdatentypen/1_1/xoev-basisdatentypen.xsd"
            uri="xoev-basisdatentypen.xsd"/>
    <system systemId="http://www.osci.eu/ws/2014/10/transport/OSCI2_02.xsd" uri="OSCI2_02.xsd"/>
    <system systemId="http://www.w3.org/2007/02/ws-policy.xsd" uri="ws-policy.xsd"/>
    <system systemId="http://xoev.de/transport/xta/211/XTA-Webservice-Globale-Elemente.xsd"
            uri="XTA-Webservice-Globale-Elemente.xsd"/>
    <system systemId="http://xoev.de/transport/xta/211/xenc-schema.xsd" uri="xenc-schema.xsd"/>
    <system systemId="http://xoev.de/transport/xta/211/XTA-Webservice-Exceptions.xsd"
            uri="XTA-Webservice-Exceptions.xsd"/>
    <system systemId="http://www.w3.org/2003/05/soap-envelope/" uri="soap-envelope.xsd"/>
    <system systemId="http://www.w3.org/2001/XMLSchema.dtd" uri="XMLSchema.dtd"/>
</catalog>

这里是我的 jaxws-maven-plugin 定义，它使用 jakarta-ee 版本的插件（适用于 JAVA 8 以上），以及用于 jakarta-ee xml 的 patrodyne hisrc-basicjaxb-plugins 来生成 toString 等。 :

<plugin>
    <groupId>com.sun.xml.ws</groupId>
    <artifactId>jaxws-maven-plugin</artifactId>
    <version>3.0.0</version>
    <executions>
        <execution>
            <goals>
                <goal>wsimport</goal>
            </goals>
        </execution>
    </executions>
    <configuration>
        <wsdlDirectory>src/main/resources/META-INF/wsdl</wsdlDirectory>
        <wsdlFiles>
            <wsdlFile>XTA.wsdl</wsdlFile>
        </wsdlFiles>
        <wsdlLocation>/META-INF/wsdl/XTA.wsdl</wsdlLocation>
        <vmArgs>
            <!-- nötig für file Zugriff auf datatypes.dtd im Dateisystem -->
            <vmArg>-Djavax.xml.accessExternalDTD=all</vmArg>
        </vmArgs>
        <catalog>src/main/resources/META-INF/wsdl/jax-ws-catalog.xml</catalog>
        <extension>true</extension>
        <xjcArgs>
            <xjcArg>-XfluentAPI</xjcArg>
            <xjcArg>-XsimpleToString</xjcArg>
            <xjcArg>-XsimpleEquals</xjcArg>
            <xjcArg>-XsimpleHashCode</xjcArg>
        </xjcArgs>
    </configuration>
    <dependencies>
        <dependency>
            <groupId>org.patrodyne.jvnet</groupId>
            <artifactId>hisrc-basicjaxb-plugins</artifactId>
            <version>2.1.1</version>
        </dependency>
    </dependencies>
</plugin>

最后，生成的类需要 jakarta.xml 依赖项：

<properties>
    <jakarta.xml.version>4.0.1</jakarta.xml.version>
</properties>

<dependency>
    <groupId>jakarta.xml.ws</groupId>
    <artifactId>jakarta.xml.ws-api</artifactId>
    <version>${jakarta.xml.version}</version>
</dependency>
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