在SQL开发人员中将XML数据转换为JSON时，我正在遵循JSON格式。
JSON：
{"list":{"obj":{"att":{"val":"ABC"}}}}
但我希望JSON的格式如下
{"list":{"obj":{"att":{"id":"FirstName", "val":"ABC"}}}}
以下是我创建的用于将xml转换为JSON格式的oracle函数。
create or replace FUNCTION get_json(name IN VARCHAR2 ) RETURN clob IS
l_xml xmltype;
v_XML_data clob;
l_json xmltype;
l_json_result clob;
begin
v_XML_data := '<list><obj class="Plan"><att id="FirstName">
<val>ABC</val></att> </obj></list>';
IF(v_XML_data is not null) then
l_xml := xmltype.createxml(v_XML_data);
dbms_output.put_line(l_xml.getclobVal());
-- convert the JSON
l_json :=
l_xml.transform(xmltype(roelvt.json_util_pkg.get_xml_to_json_stylesheet));
-- dbms_output.put_line(l_json);
l_json_result :=l_json.getclobVal();
-- Display the JSON
dbms_output.put_line(l_json.getclobVal());
RETURN l_json_result;
else
RETURN null;
end if;
exception
when others then
null;
RETURN null;
END;
以下是XSLT样式表：
<?xml version="1.0" encoding="UTF-8"?> <xsl:stylesheetversion="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:output indent="no" omit-xml-declaration="yes"
method="text" encoding="UTF-8" media-type="text/x-json"/>
<xsl:strip-space elements="*"/>
<!--contant-->
<xsl:variable name="d">0123456789</xsl:variable>
<!-- ignore document text -->
<xsl:template match="text()[preceding-sibling::node()
or following- sibling::node()]"/>
<!-- string -->
<xsl:template match="text()">
<xsl:call-template name="escape-string">
<xsl:with-param name="s" select="."/>
</xsl:call-template>
</xsl:template>
<xsl:template name="escape-string">
<xsl:param name="s"/>
<xsl:text>"</xsl:text>
<xsl:call-template name="escape-bs-string">
<xsl:with-param name="s" select="$s"/>
</xsl:call-template>
<xsl:text>"</xsl:text>
</xsl:template>
<!-- Escape the backslash (\) before everything else. -->
<xsl:template name="escape-bs-string">
<xsl:param name="s"/>
<xsl:choose>
<xsl:when test="contains($s,''\'')">
<xsl:call-template name="escape-quot-string">
<xsl:with-param name="s" select="concat(substring-
before($s,''\''),''\\'')"/>
</xsl:call-template>
<xsl:call-template name="escape-bs-string">
<xsl:with-param name="s" select="substring-after($s,''\'')"/>
</xsl:call-template>
</xsl:when>
<xsl:otherwise>
<xsl:call-template name="escape-quot-string">
<xsl:with-param name="s" select="$s"/>
</xsl:call-template>
</xsl:otherwise>
</xsl:choose>
</xsl:template>
<!-- Escape the double quote ("). -->
<xsl:template name="escape-quot-string">
<xsl:param name="s"/>
<xsl:choose>
<xsl:when test="contains($s,'';'')">
<xsl:call-template name="encode-string">
<xsl:with-param name="s" select="concat(substring-
before($s,'';''),''"'')"/>
</xsl:call-template>
<xsl:call-template name="escape-quot-string">
<xsl:with-param name="s" select="substring-after($s,'';'')"/>
</xsl:call-template>
</xsl:when>
<xsl:otherwise>
<xsl:call-template name="encode-string">
<xsl:with-param name="s" select="$s"/>
</xsl:call-template>
</xsl:otherwise>
</xsl:choose>
</xsl:template>
<!-- Replace tab, line feed and/or carriage return by its matching escape
code. Can''t escape backslash
or double quote here, because they don''t replace characters (; becomes
\t), but they prefix
characters (\ becomes \\). Besides, backslash should be seperate anyway,
because it should be
processed first. This function can''t do that. -->
<xsl:template name="encode-string">
<xsl:param name="s"/>
<xsl:choose>
<!-- tab -->
<xsl:when test="contains($s,'';'')">
<xsl:call-template name="encode-string">
<xsl:with-param name="s" select="concat(substring-
before($s,'';''),''\t'',substring-after($s,'';''))"/>
</xsl:call-template>
</xsl:when>
<!-- line feed -->
<xsl:when test="contains($s,'';'')">
<xsl:call-template name="encode-string">
<xsl:with-param name="s" select="concat(substring-
before($s,'';''),''\n'',substring-after($s,'';''))"/>
</xsl:call-template>
</xsl:when>
<!-- carriage return -->
<xsl:when test="contains($s,'';'')">
<xsl:call-template name="encode-string">
<xsl:with-param name="s" select="concat(substring-
before($s,'';''),''\r'',substring-after($s,'';''))"/>
</xsl:call-template>
</xsl:when>
<xsl:otherwise><xsl:value-of select="$s"/></xsl:otherwise>
</xsl:choose>
</xsl:template>
<!-- number (no support for javascript mantise) -->
<xsl:template match="text()[not(string(number())=''NaN'')]">
<xsl:value-of select="."/>
</xsl:template>
<!-- boolean, case-insensitive -->
<xsl:template match="text()
[translate(.,''TRUE'',''true'')=''true'']">true</xsl:template>
<xsl:template match="text()
[translate(.,''FALSE'',''false'')=''false'']">false</xsl:template>
<!-- item:null -->
<xsl:template match="*[count(child::node())=0]">
<xsl:call-template name="escape-string">
<xsl:with-param name="s" select="local-name()"/>
</xsl:call-template>
<xsl:text>:null</xsl:text>
<xsl:if test="following-sibling::*">,</xsl:if>
<xsl:if test="not(following-sibling::*)">}</xsl:if> <!-- MBR 30.01.2010:
added this line as it appeared to be missing from stylesheet -->
</xsl:template>
<!-- object -->
<xsl:template match="*" name="base">
<xsl:if test="not(preceding-sibling::*)">{</xsl:if>
<xsl:call-template name="escape-string">
<xsl:with-param name="s" select="name()"/>
</xsl:call-template>
<xsl:text>:</xsl:text>
<xsl:apply-templates select="child::node()"/>
<xsl:if test="following-sibling::*">,</xsl:if>
<xsl:if test="not(following-sibling::*)">}</xsl:if>
</xsl:template>
<!-- array -->
<xsl:template match="*[count(../*[name(../*)=name(.)])=count(../*) and
count(../*)>1]">
<xsl:if test="not(preceding-sibling::*)">[</xsl:if>
<xsl:choose>
<xsl:when test="not(child::node())">
<xsl:text>null</xsl:text>
</xsl:when>
<xsl:otherwise>
<xsl:apply-templates select="child::node()"/>
</xsl:otherwise>
</xsl:choose>
<xsl:if test="following-sibling::*">,</xsl:if>
<xsl:if test="not(following-sibling::*)">]
</xsl:if>
</xsl:template>
<!-- convert root element to an anonymous container -->
<xsl:template match="/">
<xsl:apply-templates select="node()"/>
</xsl:template>
</xsl:stylesheet>