JAXB XJC代码生成 - 由Marshaller生成的xml中缺少“schemaLocation”

Question

I使用XJC工具为我的XSD模式生成Java类。当我使用JAXB Marshaller将类组装到XML有效负载中时，我在输出XML中缺少“schemaLocation”参数，但我在xsd文件中声明了此参数。如何在输出XML中实施“schemaLocation”参数？

下面是我的XSD架构文件用于代码生成的beggining：

<?xml version="1.0" encoding="UTF-8"?><xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns="xsdns" xmlns:messages="http://www.exampleURI.com/Schema1" xmlns:datatypes="http://www.exampleURI.com/Schema1" xmlns:xsi="http://www.w3.org/2000/10/XMLSchema-instance" xsi:schemaLocation="http://www.exampleURI.com/Schema1 ./messages.xsd" targetNamespace="http://www.exampleURI.com/Schema1" elementFormDefault="unqualified" version="true"> 
<xs:include schemaLocation="datatypes.xsd"/> 
<xs:complexType name="execute-system-command-struct"> 
    <xs:annotation> 
     <xs:documentation>The request for system command execution.</xs:documentation> 
    </xs:annotation> 
    <xs:sequence/> 
    <xs:attribute name="action" type="datatypes:system-action-kind-enum" use="required"> 
     <xs:annotation> 
      <xs:documentation>The action that the Voice System has to proceed.</xs:documentation> 
     </xs:annotation> 
    </xs:attribute> 

问候

Answer 1

试试这个：

marshaller.setProperty(Marshaller.JAXB_SCHEMA_LOCATION, "http://my.namespace my.schema.xsd");