使用PL/SQL解析SOAP响应

Question

我想使用下面的代码解析SOAP响应，但我得到一个空响应。该响应包含多个名称空间，我认为这是我遇到问题的地方。有人能指出我做错了什么吗？

declare 
    l_xml xmltype; 
begin 
    l_xml := xmltype.createXML('<?xml version="1.0" encoding="UTF-8"?> 
       <SOAP-ENV:Envelope xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/" xmlns:ns1="http://www.cachelan.com/WebAPI/solarvuDataRetrieve.php" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:ns2="http://xml.apache.org/xml-soap" xmlns:SOAP-ENC="http://schemas.xmlsoap.org/soap/encoding/" SOAP-ENV:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/"> 
       <SOAP-ENV:Body> 
        <ns1:getDataResponse> 
         <return xsi:type="ns2:Map"> 
          <item> 
           <key xsi:type="xsd:string">status</key> 
           <value xsi:type="xsd:int">0</value> 
          </item> 
          <item> 
           <key xsi:type="xsd:string">content</key> 
           <value xsi:type="xsd:string">"SolarVu OM Data Request" 
           "From Mar 1, 2017 To Mar 4, 2017" 

           "Timestamp","Date","Daily Energy(kWh)","Insolation(Wh/m^2)" 
           "1488344400","Mar 1/17","131.064","1,105.750" 
           "1488430800","Mar 2/17","370.576","3,202.750" 
           "1488517200","Mar 3/17","517.566","4,662.500" 
           "1488603600","Mar 4/17","382.626","6,001.750" 
          </value> 
         </item> 
        </return> 
       </ns1:getDataResponse> 
       </SOAP-ENV:Body> 
       </SOAP-ENV:Envelope>'); 

    for i in (SELECT t."key", t."value" 
      FROM dual d, 
      XMLTABLE(xmlnamespaces('http://www.w3.org/2001/XMLSchema-instance' as "xsi", 
            'http://schemas.xmlsoap.org/soap/envelope/' as "SOAP-ENV", 
            'http://www.cachelan.com/WebAPI/solarvuDataRetrieve.php' as "ns1", 
            'http://www.w3.org/2001/XMLSchema' as "xsd", 
            'http://xml.apache.org/xml-soap' as "ns2", 
            'http://schemas.xmlsoap.org/soap/encoding/' as "SOAP-ENC"), 
        '/getDataResponse/return/item[*]' 
       PASSING l_xml 
       COLUMNS 
       "key" varchar2(4000) PATH 'key', 
       "value" varchar2(4000) PATH 'value') t) 
    loop 
    dbms_output.put_line('Key is: '||i."key"); 
    end loop; 
end; 
/

Answer 1

你不与它在XPath命名空间前缀getDataResponse，你也没有包括信封和身体标签;所以更改XPath来：

'/SOAP-ENV:Envelope/SOAP-ENV:Body/ns1:getDataResponse/return/item' 

随着只是改变你的代码生成：

Key is: status 
Key is: content 

PL/SQL procedure successfully completed. 

Answer 2

我有同样的问题。我发现问题出在<ns1:getDataResponse>之类的前缀名称空间以及Oracle XMLType如何解释它们。我解决了它提取没有前缀命名空间的内部节点，基于你的例子这样。

declare 
    l_xml xmltype; 
begin 
    l_xml := xmltype.createXML('<?xml version="1.0" encoding="UTF-8"?> 
       <SOAP-ENV:Envelope xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/" xmlns:ns1="http://www.cachelan.com/WebAPI/solarvuDataRetrieve.php" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:ns2="http://xml.apache.org/xml-soap" xmlns:SOAP-ENC="http://schemas.xmlsoap.org/soap/encoding/" SOAP-ENV:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/"> 
       <SOAP-ENV:Body> 
        <ns1:getDataResponse> 
         <return xsi:type="ns2:Map"> 
          <item> 
           <key xsi:type="xsd:string">status</key> 
           <value xsi:type="xsd:int">0</value> 
          </item> 
          <item> 
           <key xsi:type="xsd:string">content</key> 
           <value xsi:type="xsd:string">"SolarVu OM Data Request" 
           "From Mar 1, 2017 To Mar 4, 2017" 

           "Timestamp","Date","Daily Energy(kWh)","Insolation(Wh/m^2)" 
           "1488344400","Mar 1/17","131.064","1,105.750" 
           "1488430800","Mar 2/17","370.576","3,202.750" 
           "1488517200","Mar 3/17","517.566","4,662.500" 
           "1488603600","Mar 4/17","382.626","6,001.750" 
          </value> 
         </item> 
        </return> 
       </ns1:getDataResponse> 
       </SOAP-ENV:Body> 
       </SOAP-ENV:Envelope>'); 

    --Pay attention here and changes in path parameter at XMLTABLE 
    l_xml := l_xml.EXtract('//*/*//return'); 

    for i in (select t.key, t.value 
       from dual d, 
        XMLTABLE('/return/item' PASSING l_xml COLUMNS key 
           varchar2(4000) PATH 'key', 
           value varchar2(4000) PATH 'value') t) loop 
     dbms_output.put_line('Key is: ' || i.key); 
    end loop; 
end;