使用 Java 将 XSD 转换为树结构

问题描述

我想为 XML 模式生成文档.

I want to generate documentation for XML schemas.

我的目标是分析 xsd 文件并将其显示为树结构(解决所有复杂/匿名类型).此外，我需要用它们的基数(由模式定义)注释该树中的所有项目.

My goal is to analyze the xsd file and to display it as a tree structure (with all complex / anonymous types resolved). Furthermore I need to annotate all items in that tree with their cardinality (as defined by the schema).

下面的小例子可能有助于澄清我的问题.

The following small example might help to clarify my problem.

a) xsd 文件:

<?xml version="1.0" encoding="UTF-8"?>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema">
    <xs:element name="client" type="clientType" />
    <xs:complexType name="clientType">
        <xs:sequence minOccurs="1" maxOccurs="1">
            <xs:element name="first_name"/>
            <xs:element name="last_name"/>
            <xs:element name="address" type="addressType" 
                        minOccurs="1" maxOccurs="unbounded"/>
        </xs:sequence>
    </xs:complexType>
    <xs:complexType name="addressType">
        <xs:sequence>
            <xs:element name="street"/>
            <xs:element name="number" minOccurs="0" maxOccurs="1"/>
            <xs:element name="city"/>
            <xs:element name="zipcode"/>
        </xs:sequence>
    </xs:complexType>
</xs:schema>

b) 我想看到的输出:

b) Output I'd like to see:

client [1]
  first_name [1]
  last_name [1]
  address [1..n]
    street [1]
    number [0..1]
    city [1]
    zipcode [1]

有人知道这个问题的基于 java 的解决方案吗?最好基于 Eclipse Schema Infoset，但我也很乐意使用其他库.

Does anybody know a java based solution for this problem? Preferably based on Eclipse Schema Infoset, but I'm happy to use other libraries as well.

推荐答案

XSOM 可以将 XSD 规范化为可理解的数据结构，您可以循环并打印出来.

XSOM can normalize an XSD into a comprehensible data structure that you can loop over and print out.

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