我正在尝试使用JAXB将this file解组为Java对象。我知道J6中的SAX存在一个问题，即拒绝maxOccurs行，我已将其更改为unbounded。但是，当我xjc时，它并没有创建所有类和＆amp;我需要的枚举。例如，应该有一个educationLevelType枚举。更重要的是，我尝试了MS的xsd unmarshaller，它正确地创造了一切。
有没有比我更有经验的人能告诉我我缺少什么？是否需要在xsd中更正某些内容，或者JAXB中是否存在错误？
更新 Blaise完全回答了这个问题。不幸的是，恕我直言，这使得JAXB毫无价值。整个想法是我可以从模式中生成类 - 我不应该事先知道结构的内容。如果我必须创建一个自定义绑定文件，我不妨创建一个生成我想要的代码的模式。但那么，为什么要停在那里？为什么不跳过所有这些步骤并生成我想要的类？
最后，一位同事指着我Apache XMLBeans - 这个项目有点老了，但它创造了没有麻烦的物品。 Codehaus还有一个xmlbeans-maven-plugin。
答案 0 :(得分：7)
有几个枚举值导致此问题。通过使用JAXB外部绑定文件可以克服这些问题（见下文）。
枚举问题＃1 - 空字符串
你的一些枚举值是空字符串（“”），它导致生成一个String而不是一个枚举属性：
<xs:enumeration value="">
<xs:annotation>
<xs:documentation>Blank</xs:documentation>
</xs:annotation>
</xs:enumeration>
枚举问题＃2 - 数字字符串
某些枚举值是导致生成字符串而不是枚举属性的数字：
<xs:enumeration value="6">
<xs:annotation>
<xs:documentation>6th grade</xs:documentation>
</xs:annotation>
</xs:enumeration>
绑定文件（bindings.xml）
以下绑定文件可用于解决 educationLevelType 的问题，此处的概念可应用于所有有问题的类型：
<jxb:bindings
xmlns:xs="http://www.w3.org/2001/XMLSchema"
xmlns:jxb="http://java.sun.com/xml/ns/jaxb"
version="2.1">
<jxb:bindings schemaLocation="http://www.acf.hhs.gov/programs/cb/systems/nytd/nytd_data_file_format.xsd">
<jxb:bindings node="//xs:simpleType[@name='educationLevelType']/xs:restriction/xs:enumeration[@value='6']">
<jxb:typesafeEnumMember name="SIX"/>
</jxb:bindings>
<jxb:bindings node="//xs:simpleType[@name='educationLevelType']/xs:restriction/xs:enumeration[@value='7']">
<jxb:typesafeEnumMember name="SEVEN"/>
</jxb:bindings>
<jxb:bindings node="//xs:simpleType[@name='educationLevelType']/xs:restriction/xs:enumeration[@value='8']">
<jxb:typesafeEnumMember name="EIGHT"/>
</jxb:bindings>
<jxb:bindings node="//xs:simpleType[@name='educationLevelType']/xs:restriction/xs:enumeration[@value='9']">
<jxb:typesafeEnumMember name="NINE"/>
</jxb:bindings>
<jxb:bindings node="//xs:simpleType[@name='educationLevelType']/xs:restriction/xs:enumeration[@value='10']">
<jxb:typesafeEnumMember name="TEN"/>
</jxb:bindings>
<jxb:bindings node="//xs:simpleType[@name='educationLevelType']/xs:restriction/xs:enumeration[@value='11']">
<jxb:typesafeEnumMember name="ELEVEN"/>
</jxb:bindings>
<jxb:bindings node="//xs:simpleType[@name='educationLevelType']/xs:restriction/xs:enumeration[@value='12']">
<jxb:typesafeEnumMember name="TWELVE"/>
</jxb:bindings>
<jxb:bindings node="//xs:simpleType[@name='educationLevelType']/xs:restriction/xs:enumeration[@value='']">
<jxb:typesafeEnumMember name="BLANK"/>
</jxb:bindings>
</jxb:bindings>
</jxb:bindings>
XJC调用可以如下进行（-nv标志如下所述）：
xjc -nv -b bindings.xml -d out http://www.acf.hhs.gov/programs/cb/systems/nytd/nytd_data_file_format.xsd
这将导致生成以下枚举：
package gov.hhs.acf.nytd;
import javax.xml.bind.annotation.XmlEnum;
import javax.xml.bind.annotation.XmlEnumValue;
import javax.xml.bind.annotation.XmlType;
@XmlType(name = "educationLevelType")
@XmlEnum
public enum EducationLevelType {
@XmlEnumValue("under 6")
UNDER_6("under 6"),
@XmlEnumValue("6")
SIX("6"),
@XmlEnumValue("7")
SEVEN("7"),
@XmlEnumValue("8")
EIGHT("8"),
@XmlEnumValue("9")
NINE("9"),
@XmlEnumValue("10")
TEN("10"),
@XmlEnumValue("11")
ELEVEN("11"),
@XmlEnumValue("12")
TWELVE("12"),
@XmlEnumValue("post secondary")
POST_SECONDARY("post secondary"),
@XmlEnumValue("college")
COLLEGE("college"),
@XmlEnumValue("")
BLANK("");
private final String value;
EducationLevelType(String v) {
value = v;
}
public String value() {
return value;
}
public static EducationLevelType fromValue(String v) {
for (EducationLevelType c: EducationLevelType.values()) {
if (c.value.equals(v)) {
return c;
}
}
throw new IllegalArgumentException(v);
}
}
maxOccurs问题
对于maxOccurs问题，可以使用以下带有 no verify （ - nv）标志的命令行来解析XML模式：
xjc -nv -d out http://www.acf.hhs.gov/programs/cb/systems/nytd/nytd_data_file_format.xsd
这将使您无需修改XML架构即可通过以下错误：
解析模式... [ERROR]当前 解析器的配置没有 允许maxOccurs属性值 设置大于值5,000 第41行 http://www.acf.hhs.gov/programs/cb/systems/nytd/nytd_data_file_format.xsd
无法解析架构。
了解更多信息
答案 1 :(得分：5)
您也可以使用带有typesafeEnumMemberName =“generateName”
的globalBindings，而不是为每个枚举值指定绑定。<?xml version="1.0" encoding="UTF-8"?>
<bindings xmlns="http://java.sun.com/xml/ns/jaxb"
xmlns:xsi="http://www.w3.org/2000/10/XMLSchema-instance"
xmlns:xjc="http://java.sun.com/xml/ns/jaxb/xjc"
xsi:schemaLocation="
http://java.sun.com/xml/ns/jaxb http://java.sun.com/xml/ns/jaxb/bindingschema_2_0.xsd"
version="2.1" schemaLocation="xxxxxxxxx.xsd" >
<schemaBindings>
<package name="xx.xx.xx" />
</schemaBindings>
<globalBindings typesafeEnumMemberName="generateName"/>
</bindings>
答案 2 :(得分：0)
XMLBeans也不会为此XML架构生成枚举。使用XMLBeans 2.5.0（最新的http://xmlbeans.apache.org/），以下是为educationLevelType生成的内容：
/*
* XML Type: educationLevelType
* Namespace: http://nytd.acf.hhs.gov
* Java type: gov.hhs.acf.nytd.EducationLevelType
*
* Automatically generated - do not modify.
*/
package gov.hhs.acf.nytd;
/**
* An XML educationLevelType(@http://nytd.acf.hhs.gov).
*
* This is an atomic type that is a restriction of gov.hhs.acf.nytd.EducationLevelType.
*/
public interface EducationLevelType extends org.apache.xmlbeans.XmlString
{
public static final org.apache.xmlbeans.SchemaType type = (org.apache.xmlbeans.SchemaType)
org.apache.xmlbeans.XmlBeans.typeSystemForClassLoader(EducationLevelType.class.getClassLoader(), "schemaorg_apache_xmlbeans.system.s1A8CC5216945B0856A28CEF895800DEB").resolveHandle("educationleveltypeb147type");
org.apache.xmlbeans.StringEnumAbstractBase enumValue();
void set(org.apache.xmlbeans.StringEnumAbstractBase e);
static final Enum UNDER_6 = Enum.forString("under 6");
static final Enum X_6 = Enum.forString("6");
static final Enum X_7 = Enum.forString("7");
static final Enum X_8 = Enum.forString("8");
static final Enum X_9 = Enum.forString("9");
static final Enum X_10 = Enum.forString("10");
static final Enum X_11 = Enum.forString("11");
static final Enum X_12 = Enum.forString("12");
static final Enum POST_SECONDARY = Enum.forString("post secondary");
static final Enum COLLEGE = Enum.forString("college");
static final Enum X = Enum.forString("");
static final int INT_UNDER_6 = Enum.INT_UNDER_6;
static final int INT_X_6 = Enum.INT_X_6;
static final int INT_X_7 = Enum.INT_X_7;
static final int INT_X_8 = Enum.INT_X_8;
static final int INT_X_9 = Enum.INT_X_9;
static final int INT_X_10 = Enum.INT_X_10;
static final int INT_X_11 = Enum.INT_X_11;
static final int INT_X_12 = Enum.INT_X_12;
static final int INT_POST_SECONDARY = Enum.INT_POST_SECONDARY;
static final int INT_COLLEGE = Enum.INT_COLLEGE;
static final int INT_X = Enum.INT_X;
/**
* Enumeration value class for gov.hhs.acf.nytd.EducationLevelType.
* These enum values can be used as follows:
* <pre>
* enum.toString(); // returns the string value of the enum
* enum.intValue(); // returns an int value, useful for switches
* // e.g., case Enum.INT_UNDER_6
* Enum.forString(s); // returns the enum value for a string
* Enum.forInt(i); // returns the enum value for an int
* </pre>
* Enumeration objects are immutable singleton objects that
* can be compared using == object equality. They have no
* public constructor. See the constants defined within this
* class for all the valid values.
*/
static final class Enum extends org.apache.xmlbeans.StringEnumAbstractBase
{
/**
* Returns the enum value for a string, or null if none.
*/
public static Enum forString(java.lang.String s)
{ return (Enum)table.forString(s); }
/**
* Returns the enum value corresponding to an int, or null if none.
*/
public static Enum forInt(int i)
{ return (Enum)table.forInt(i); }
private Enum(java.lang.String s, int i)
{ super(s, i); }
static final int INT_UNDER_6 = 1;
static final int INT_X_6 = 2;
static final int INT_X_7 = 3;
static final int INT_X_8 = 4;
static final int INT_X_9 = 5;
static final int INT_X_10 = 6;
static final int INT_X_11 = 7;
static final int INT_X_12 = 8;
static final int INT_POST_SECONDARY = 9;
static final int INT_COLLEGE = 10;
static final int INT_X = 11;
public static final org.apache.xmlbeans.StringEnumAbstractBase.Table table =
new org.apache.xmlbeans.StringEnumAbstractBase.Table
(
new Enum[]
{
new Enum("under 6", INT_UNDER_6),
new Enum("6", INT_X_6),
new Enum("7", INT_X_7),
new Enum("8", INT_X_8),
new Enum("9", INT_X_9),
new Enum("10", INT_X_10),
new Enum("11", INT_X_11),
new Enum("12", INT_X_12),
new Enum("post secondary", INT_POST_SECONDARY),
new Enum("college", INT_COLLEGE),
new Enum("", INT_X),
}
);
private static final long serialVersionUID = 1L;
private java.lang.Object readResolve() { return forInt(intValue()); }
}
/**
* A factory class with static methods for creating instances
* of this type.
*/
public static final class Factory
{
public static gov.hhs.acf.nytd.EducationLevelType newValue(java.lang.Object obj) {
return (gov.hhs.acf.nytd.EducationLevelType) type.newValue( obj ); }
public static gov.hhs.acf.nytd.EducationLevelType newInstance() {
return (gov.hhs.acf.nytd.EducationLevelType) org.apache.xmlbeans.XmlBeans.getContextTypeLoader().newInstance( type, null ); }
public static gov.hhs.acf.nytd.EducationLevelType newInstance(org.apache.xmlbeans.XmlOptions options) {
return (gov.hhs.acf.nytd.EducationLevelType) org.apache.xmlbeans.XmlBeans.getContextTypeLoader().newInstance( type, options ); }
/** @param xmlAsString the string value to parse */
public static gov.hhs.acf.nytd.EducationLevelType parse(java.lang.String xmlAsString) throws org.apache.xmlbeans.XmlException {
return (gov.hhs.acf.nytd.EducationLevelType) org.apache.xmlbeans.XmlBeans.getContextTypeLoader().parse( xmlAsString, type, null ); }
public static gov.hhs.acf.nytd.EducationLevelType parse(java.lang.String xmlAsString, org.apache.xmlbeans.XmlOptions options) throws org.apache.xmlbeans.XmlException {
return (gov.hhs.acf.nytd.EducationLevelType) org.apache.xmlbeans.XmlBeans.getContextTypeLoader().parse( xmlAsString, type, options ); }
/** @param file the file from which to load an xml document */
public static gov.hhs.acf.nytd.EducationLevelType parse(java.io.File file) throws org.apache.xmlbeans.XmlException, java.io.IOException {
return (gov.hhs.acf.nytd.EducationLevelType) org.apache.xmlbeans.XmlBeans.getContextTypeLoader().parse( file, type, null ); }
public static gov.hhs.acf.nytd.EducationLevelType parse(java.io.File file, org.apache.xmlbeans.XmlOptions options) throws org.apache.xmlbeans.XmlException, java.io.IOException {
return (gov.hhs.acf.nytd.EducationLevelType) org.apache.xmlbeans.XmlBeans.getContextTypeLoader().parse( file, type, options ); }
public static gov.hhs.acf.nytd.EducationLevelType parse(java.net.URL u) throws org.apache.xmlbeans.XmlException, java.io.IOException {
return (gov.hhs.acf.nytd.EducationLevelType) org.apache.xmlbeans.XmlBeans.getContextTypeLoader().parse( u, type, null ); }
public static gov.hhs.acf.nytd.EducationLevelType parse(java.net.URL u, org.apache.xmlbeans.XmlOptions options) throws org.apache.xmlbeans.XmlException, java.io.IOException {
return (gov.hhs.acf.nytd.EducationLevelType) org.apache.xmlbeans.XmlBeans.getContextTypeLoader().parse( u, type, options ); }
public static gov.hhs.acf.nytd.EducationLevelType parse(java.io.InputStream is) throws org.apache.xmlbeans.XmlException, java.io.IOException {
return (gov.hhs.acf.nytd.EducationLevelType) org.apache.xmlbeans.XmlBeans.getContextTypeLoader().parse( is, type, null ); }
public static gov.hhs.acf.nytd.EducationLevelType parse(java.io.InputStream is, org.apache.xmlbeans.XmlOptions options) throws org.apache.xmlbeans.XmlException, java.io.IOException {
return (gov.hhs.acf.nytd.EducationLevelType) org.apache.xmlbeans.XmlBeans.getContextTypeLoader().parse( is, type, options ); }
public static gov.hhs.acf.nytd.EducationLevelType parse(java.io.Reader r) throws org.apache.xmlbeans.XmlException, java.io.IOException {
return (gov.hhs.acf.nytd.EducationLevelType) org.apache.xmlbeans.XmlBeans.getContextTypeLoader().parse( r, type, null ); }
public static gov.hhs.acf.nytd.EducationLevelType parse(java.io.Reader r, org.apache.xmlbeans.XmlOptions options) throws org.apache.xmlbeans.XmlException, java.io.IOException {
return (gov.hhs.acf.nytd.EducationLevelType) org.apache.xmlbeans.XmlBeans.getContextTypeLoader().parse( r, type, options ); }
public static gov.hhs.acf.nytd.EducationLevelType parse(javax.xml.stream.XMLStreamReader sr) throws org.apache.xmlbeans.XmlException {
return (gov.hhs.acf.nytd.EducationLevelType) org.apache.xmlbeans.XmlBeans.getContextTypeLoader().parse( sr, type, null ); }
public static gov.hhs.acf.nytd.EducationLevelType parse(javax.xml.stream.XMLStreamReader sr, org.apache.xmlbeans.XmlOptions options) throws org.apache.xmlbeans.XmlException {
return (gov.hhs.acf.nytd.EducationLevelType) org.apache.xmlbeans.XmlBeans.getContextTypeLoader().parse( sr, type, options ); }
public static gov.hhs.acf.nytd.EducationLevelType parse(org.w3c.dom.Node node) throws org.apache.xmlbeans.XmlException {
return (gov.hhs.acf.nytd.EducationLevelType) org.apache.xmlbeans.XmlBeans.getContextTypeLoader().parse( node, type, null ); }
public static gov.hhs.acf.nytd.EducationLevelType parse(org.w3c.dom.Node node, org.apache.xmlbeans.XmlOptions options) throws org.apache.xmlbeans.XmlException {
return (gov.hhs.acf.nytd.EducationLevelType) org.apache.xmlbeans.XmlBeans.getContextTypeLoader().parse( node, type, options ); }
/** @deprecated {@link org.apache.xmlbeans.xml.stream.XMLInputStream} */
public static gov.hhs.acf.nytd.EducationLevelType parse(org.apache.xmlbeans.xml.stream.XMLInputStream xis) throws org.apache.xmlbeans.XmlException, org.apache.xmlbeans.xml.stream.XMLStreamException {
return (gov.hhs.acf.nytd.EducationLevelType) org.apache.xmlbeans.XmlBeans.getContextTypeLoader().parse( xis, type, null ); }
/** @deprecated {@link org.apache.xmlbeans.xml.stream.XMLInputStream} */
public static gov.hhs.acf.nytd.EducationLevelType parse(org.apache.xmlbeans.xml.stream.XMLInputStream xis, org.apache.xmlbeans.XmlOptions options) throws org.apache.xmlbeans.XmlException, org.apache.xmlbeans.xml.stream.XMLStreamException {
return (gov.hhs.acf.nytd.EducationLevelType) org.apache.xmlbeans.XmlBeans.getContextTypeLoader().parse( xis, type, options ); }
/** @deprecated {@link org.apache.xmlbeans.xml.stream.XMLInputStream} */
public static org.apache.xmlbeans.xml.stream.XMLInputStream newValidatingXMLInputStream(org.apache.xmlbeans.xml.stream.XMLInputStream xis) throws org.apache.xmlbeans.XmlException, org.apache.xmlbeans.xml.stream.XMLStreamException {
return org.apache.xmlbeans.XmlBeans.getContextTypeLoader().newValidatingXMLInputStream( xis, type, null ); }
/** @deprecated {@link org.apache.xmlbeans.xml.stream.XMLInputStream} */
public static org.apache.xmlbeans.xml.stream.XMLInputStream newValidatingXMLInputStream(org.apache.xmlbeans.xml.stream.XMLInputStream xis, org.apache.xmlbeans.XmlOptions options) throws org.apache.xmlbeans.XmlException, org.apache.xmlbeans.xml.stream.XMLStreamException {
return org.apache.xmlbeans.XmlBeans.getContextTypeLoader().newValidatingXMLInputStream( xis, type, options ); }
private Factory() { } // No instance of this class allowed
}
}