使用erlsom编写XML的问题

我正忙于一个使用大量XML的Erlang项目，并试图学习如何使用erlsom在Erlang中编写XML。在苦苦挣扎了整整两天之后，我现在开始紧张起来，我读得越多，就越感到困惑

XSD文件（csta.XSD）的摘录，其中包含代码停止工作的部分：

<?xml version="1.0" encoding="UTF-8"?>
<!-- edited with XMLSPY v5 rel. 4 U (http://www.xmlspy.com) by Thomas Miller (Siemens Enterprise Networks) -->
<xsd:schema targetNamespace="http://www.ecma-international.org/standards/ecma-323/csta/ed3" xmlns:csta="http://www.ecma-international.org/standards/ecma-323/csta/ed3" xmlns:xsd="http://www.w3.org/2001/XMLSchema" elementFormDefault="qualified" attributeFormDefault="unqualified">
  <xsd:import namespace="http://schemas.xmlsoap.org/soap/envelope/" schemaLocation="my_envelope.xsd"/>
  <xsd:annotation>
    <xsd:documentation>csta</xsd:documentation>
  </xsd:annotation>
  <xsd:annotation>
    <xsd:documentation>Capability Exchange Services</xsd:documentation>
  </xsd:annotation>
  <xsd:include schemaLocation="get-csta-features.xsd"/>
  <xsd:include schemaLocation="get-logical-device-information.xsd"/>
  <xsd:include schemaLocation="get-physical-device-information.xsd"/>
  <xsd:include schemaLocation="get-switching-function-capabilities.xsd"/>
  <xsd:include schemaLocation="get-switching-function-devices.xsd"/>
  <xsd:include schemaLocation="switching-function-devices.xsd"/>
  <xsd:annotation>
    <xsd:documentation>System Services</xsd:documentation>
  </xsd:annotation>

获取错误：

{error,"Include file not found my_envelope.xsd"}

** exception throw: {'EXIT',{function_clause,[{filename,join,
                                                        [47,"my_envelope.xsd"],
                                                        [{file,"filename.erl"},{line,409}]},
                                              {filename,join,1,[{file,"filename.erl"},{line,396}]},
                                              {erlsom_lib,findFileInDirs,2,
                                                          [{file,"erlsom_lib.erl"},{line,864}]},
                                              {erlsom_lib,findFile,4,[{file,"erlsom_lib.erl"},{line,828}]},
                                              {erlsom_compile,processImports,2,
                                                              [{file,"erlsom_compile.erl"},{line,306}]},
                                              {erlsom_compile,transform,2,
                                                              [{file,"erlsom_compile.erl"},{line,278}]},
                                              {erlsom_compile,compile_parsed_xsd,10,
                                                              [{file,"erlsom_compile.erl"},{line,250}]},
                                              {erlsom,compile_xsd,2,[{file,"erlsom.erl"},{line,142}]}]}}
     in function  erlsom:compile_xsd/2 (erlsom.erl, line 144)

我可以（以某种方式）接受，因此我尝试：

erlsom:compile_xsd_file(XsdFile, [{include_dirs, XsdDir}]).

Erlang返回以下错误：

{error,"Include file not found my_envelope.xsd"}

** exception throw: {'EXIT',{function_clause,[{filename,join,
                                                        [47,"my_envelope.xsd"],
                                                        [{file,"filename.erl"},{line,409}]},
                                              {filename,join,1,[{file,"filename.erl"},{line,396}]},
                                              {erlsom_lib,findFileInDirs,2,
                                                          [{file,"erlsom_lib.erl"},{line,864}]},
                                              {erlsom_lib,findFile,4,[{file,"erlsom_lib.erl"},{line,828}]},
                                              {erlsom_compile,processImports,2,
                                                              [{file,"erlsom_compile.erl"},{line,306}]},
                                              {erlsom_compile,transform,2,
                                                              [{file,"erlsom_compile.erl"},{line,278}]},
                                              {erlsom_compile,compile_parsed_xsd,10,
                                                              [{file,"erlsom_compile.erl"},{line,250}]},
                                              {erlsom,compile_xsd,2,[{file,"erlsom.erl"},{line,142}]}]}}
     in function  erlsom:compile_xsd/2 (erlsom.erl, line 144)

my_envelope.xsd

与

csta.xsd

---

我做错了什么？

include\u dirs

接受一个字符串列表，而不是一个字符串

由于库没有提前检查类型，最终会出现一个神秘的错误，这大致可以解释为

erlsom_lib:findFileInDirs/2

最终调用了

filename:join（47，“my_envelope.xsd”）

（可能是因为

include_dirs

参数的第一个元素是

47

，即

/

的ASCII值）

这将修复您最近的错误：

erlsom:compile_xsd_file(XsdFile, [{include_dirs, [XsdDir]}]).

---

那正是我的问题。谢谢。