具有数值的JAXB枚举

编程入门行业动态更新时间:2024-10-27 22:27:19

本文介绍了具有数值的JAXB枚举的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！问题描述

我想限制这样的输入值

但这不会生成枚举。我怀疑这是因为值以数字开始，这是不允许的枚举值。

But this does not generate an Enum. I suspect it is because the values start with numbers and this is not allowed for Enum values.

有没有解决方法或解决方法？

Is there any solution or workaround?

推荐答案

这是我可以帮助的类似问题的答案（见问题2）：

Here is my answer to a similar question that may help (see issue 2):

枚举不匹配模式：jaxb或xsd的问题？

Enums don't match schema: problem with jaxb or xsd?

有几个引起此问题的枚举值。可以通过使用JAXB外部绑定文件来克服这些问题（见下文）。

There are a couple of enumeration values that are causing this issue. These issues can be overcome through the use of a JAXB external binding file (see below).

枚举问题＃1 - 空字符串

您的某些枚举值空字符串（），这将导致生成一个String而不是一个枚举属性：

Some of your enum values are empty string (""), which is causing a String rather than an enum property to be generated:

<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String而不是枚举属性的数字：

Some of the enum values are numbers which is causing a String rather than an enum property to be generated:

<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，这里的概念可以应用于所有有问题的类型：

The following bindings file can be used to address the issues with the educationLevelType, the concepts here can be applied to all the problematic types:

<jxb:bindings xmlns:xs="www.w3/2001/XMLSchema" xmlns:jxb="java.sun/xml/ns/jaxb" version="2.1"> <jxb:bindings schemaLocation="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（-nv标志如下所述）：

The XJC call can be made as follows (the -nv flag is described below):

xjc -nv -b bindings.xml -d out www.acf.hhs.gov/programs/cb/systems/nytd/nytd_data_file_format.xsd

这将导致生成以下枚举：

This will cause the following Enum to be generated:

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 Issue

对于maxOccurs问题，使用 no verify （-nv）标志的以下命令行可用于解析XML模式：

For the maxOccurs issue, the following command line with the no verify (-nv) flag can be used to parse the XML schema:

xjc -nv -d out www.acf.hhs.gov/programs/cb/systems/nytd/nytd_data_file_format.xsd

这将让您超越以下错误，而无需修改XML模式： / p>

This will get you past the following error without having to modify the XML schema:

解析模式... [ERROR]当前解析器的配置不允许maxOccurs属性值为设置为大于值5,000。第41行 www.acf.hhs.gov/programs/cb/systems/nytd/nytd_data_file_format.xsd

无法解析模式。

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