使用jaxb schemagen创建XSD

Question

我正在学习JAXb 2.0，而且是个新手。

我正在尝试使用schemagen基于y POJO类生成XSD，对于简单的类，它工作得很好，但当我的类包含对其他类的引用时。

schemagen给我的错误如下是相同的错误跟踪

批注处理过程中遇到问题；有关详细信息，请参阅下面的堆栈跟踪。

java.lang.NullPointerException
        at com.sun.tools.jxc.model.nav.APTNavigator$2.onDeclaredType(APTNavigator.java:436)
        at com.sun.tools.jxc.model.nav.APTNavigator$2.onClassType(APTNavigator.java:410)
        at com.sun.tools.jxc.model.nav.APTNavigator$2.onClassType(APTNavigator.java:464)
        at com.sun.istack.tools.APTTypeVisitor.apply(APTTypeVisitor.java:27)
        at com.sun.tools.jxc.model.nav.APTNavigator.getBaseClass(APTNavigator.java:113)
        at com.sun.tools.jxc.model.nav.APTNavigator.getBaseClass(APTNavigator.java:89)
        at com.sun.xml.bind.v2.model.impl.PropertyInfoImpl.getIndividualType(PropertyInfoImpl.java:195)
        at com.sun.xml.bind.v2.model.impl.PropertyInfoImpl.<init>(PropertyInfoImpl.java:137)
        at com.sun.xml.bind.v2.model.impl.MapPropertyInfoImpl.<init>(MapPropertyInfoImpl.java:71)
        at com.sun.xml.bind.v2.model.impl.ClassInfoImpl.createMapProperty(ClassInfoImpl.java:928)
        at com.sun.xml.bind.v2.model.impl.ClassInfoImpl.addProperty(ClassInfoImpl.java:885)
        at com.sun.xml.bind.v2.model.impl.ClassInfoImpl.findGetterSetterProperties(ClassInfoImpl.java:1004)
        at com.sun.xml.bind.v2.model.impl.ClassInfoImpl.getProperties(ClassInfoImpl.java:314)
        at com.sun.xml.bind.v2.model.impl.ModelBuilder.getClassInfo(ModelBuilder.java:247)
        at com.sun.xml.bind.v2.model.impl.ModelBuilder.getClassInfo(ModelBuilder.java:213)
        at com.sun.xml.bind.v2.model.impl.ModelBuilder.getTypeInfo(ModelBuilder.java:319)
        at com.sun.xml.bind.v2.model.impl.ModelBuilder.getTypeInfo(ModelBuilder.java:334)
        at com.sun.tools.xjc.api.impl.j2s.JavaCompilerImpl.bind(JavaCompilerImpl.java:94)
        at com.sun.tools.jxc.apt.SchemaGenerator$1.process(SchemaGenerator.java:119)
        at com.sun.mirror.apt.AnnotationProcessors$CompositeAnnotationProcessor.process(AnnotationProcessors.java:60)
        at com.sun.tools.apt.comp.Apt.main(Apt.java:454)
        at com.sun.tools.apt.main.JavaCompiler.compile(JavaCompiler.java:258)
        at com.sun.tools.apt.main.Main.compile(Main.java:1102)
        at com.sun.tools.apt.main.Main.compile(Main.java:964)
        at com.sun.tools.apt.Main.processing(Main.java:95)
        at com.sun.tools.apt.Main.process(Main.java:85)
        at com.sun.tools.apt.Main.process(Main.java:67)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
        at java.lang.reflect.Method.invoke(Unknown Source)
        at com.sun.tools.jxc.SchemaGenerator$Runner.main(SchemaGenerator.java:245)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
        at java.lang.reflect.Method.invoke(Unknown Source)
        at com.sun.tools.jxc.SchemaGenerator.run(SchemaGenerator.java:177)
        at com.sun.tools.jxc.SchemaGenerator.run(SchemaGenerator.java:81)
        at com.sun.tools.jxc.SchemaGenerator.main(SchemaGenerator.java:73)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
        at java.lang.reflect.Method.invoke(Unknown Source)
        at com.sun.tools.jxc.SchemaGeneratorFacade.main(SchemaGeneratorFacade.java:60)
C:\Users\Desktop\jaxb\jaxb-ri-20101119\bin\src\com\tr\model\destination\Destination.java:9: package com.tr.model.address does not exist
import com.tr.model.address.BasicAddress;[code]

下面是我文件夹结构的详细信息

schemagen位于以下位置

C:\Users\Desktop\jaxb\jaxb-ri-20101119\bin

我尝试生成xsd所基于的Java类位于以下位置

C:\Users\Desktop\jaxb\jaxb-ri-20101119\bin\src\com\tr\model\destination

Destination.java

而从目标引用的所有其他类以及类本身都在以下结构中

C:\Users\Raisonne\Desktop\jaxb\jaxb-ri-20101119\bin\src\com\raisonne\tr\model

我知道问题出在classpath的设置上，但是我不知道如何为这种情况设置正确的classpath。

我尝试将系统的CLASSPATH变量设置为

C:\Users\Raisonne\Desktop\jaxb\jaxb-ri-20101119\bin\src\com\raisonne\tr\model as well other 2 mentioned in my post but nothing worked out.

有人能帮我设置模式的类路径吗？

提前感谢

Umesh

Answer 1

您似乎已将类的包声明设置为

com.tr.model.address  

它应该在您的dir结构中的什么位置

com.tr.model.destination