Question

我正在尝试解析xml但是收到错误。

public static String xmlVersion（String source）{

try {
    DocumentBuilderFactory documentBuilderFactory = DocumentBuilderFactory.newInstance();
    DocumentBuilder documentBuilder = documentBuilderFactory.newDocumentBuilder();
    Document document = documentBuilder.parse(source);
    return document.getDocumentElement().getAttribute("versao");
} catch (SAXException | IOException | ParserConfigurationException e) {
    e.printStackTrace();
}
return null;

}

stackTrace

java.net.MalformedURLException: no protocol: <?xml version="1.0" encoding="UTF-8"?><nfeProc versao="2.00" xmlns="http://www.portalfiscal.inf.br/nfe"><NFe xmlns="http://www.portalfiscal.inf.br/nfe"><infNFe versao="2.00" Id="NFe31130605633253000205550010000002571000169370"><ide><cUF>31</cUF><cNF>00016937</cNF><natOp>Devolucao de compra para comercializacao em operacao com mer</natOp><indPag>0</indPag><mod>55</mod><serie>1</serie><nNF>257</nNF><dEmi>2013-06-14</dEmi><dSaiEnt>2013-06-14</dSaiEnt><tpNF>1</tpNF><cMunFG>3147907</cMunFG><tpImp>1</tpImp><tpEmis>1</tpEmis><cDV>0</cDV><tpAmb>1</tpAmb><finNFe>1</finNFe><procEmi>0</procEmi><verProc>2.0.1.2</verProc></ide><emit><CNPJ>05633253000205</CNPJ><xNome>SUPERMERCADO EXPOSICAO LTDA</xNome><xFant>SUPERMERCADO EXPOSICAO 2</xFant><enderEmit><xLgr>RUA JOAO TEIXEIRA MENDES</xLgr><nro>541</nro><xBairro>N.S.APARECIDA</xBairro><cMun>3147907</cMun><xMun>PASSOS</xMun><UF>MG</UF><CEP>37902419</CEP><cPais>1058</cPais><xPais>BRASIL</xPais><fone>3535215796</fone></enderEmit><IE>4792308680128</IE><CRT>3</CRT></emit><dest><CNPJ>16849231000619</CNPJ><xNome>ITAMBE ALIMENTOS S A</xNome><enderDest><xLgr>RODOVIA BR 262 ANEXO I KM403</xLgr><nro>S/N</nro><xBairro>PATAFUFO</xBairro><cMun>3147105</cMun><xMun>Para de Minas</xMun><UF>MG</UF><CEP>35661390</CEP><cPais>1058</cPais><xPais>BRASIL</xPais></enderDest><IE>0020322880432</IE></dest><det nItem="1"><prod><cProd>13169</cProd><cEAN>7896051111832</cEAN><xProd>BEBIDA LACTEA ITAMBE FAMILIA VITAMINA C/ FRUTAS 1L</xProd><NCM>04039000</NCM><CFOP>5411</CFOP><uCom>UN</uCom><qCom>1.0000</qCom><vUnCom>3.1900000000</vUnCom><vProd>3.19</vProd><cEANTrib/><uTrib>UN</uTrib><qTrib>1.0000</qTrib><vUnTrib>3.1900000000</vUnTrib><vOutro>0.07</vOutro><indTot>1</indTot></prod><imposto><ICMS><ICMS70><orig>0</orig><CST>70</CST><modBC>2</modBC><pRedBC>61.11</pRedBC><vBC>1.24</vBC><pICMS>18.00</pICMS><vICMS>0.22</vICMS><modBCST>0</modBCST><vBCST>0.00</vBCST><pICMSST>0.00</pICMSST><vICMSST>0.00</vICMSST></ICMS70></ICMS><PIS><PISNT><CST>06</CST></PISNT></PIS><COFINS><COFINSNT><CST>06</CST></COFINSNT></COFINS></imposto></det><det nItem="2"><prod><cProd>23003</cProd><cEAN>7896051121831</cEAN><xProd>COALHADA ITAMBE DESNATADA 130GR</xProd><NCM>40310000</NCM><CFOP>5411</CFOP><uCom>UN</uCom><qCom>3.0000</qCom><vUnCom>0.8300000000</vUnCom><vProd>2.49</vProd><cEANTrib/><uTrib>UN</uTrib><qTrib>3.0000</qTrib><vUnTrib>0.8300000000</vUnTrib><vOutro>0.05</vOutro><indTot>1</indTot></prod><imposto><ICMS><ICMS70><orig>0</orig><CST>70</CST><modBC>2</modBC><pRedBC>33.33</pRedBC><vBC>1.66</vBC><pICMS>18.00</pICMS><vICMS>0.30</vICMS><modBCST>0</modBCST><vBCST>0.00</vBCST><pICMSST>0.00</pICMSST><vICMSST>0.00</vICMSST></ICMS70></ICMS><PIS><PISAliq><CST>01</CST><vBC>0.00</vBC><pPIS>0.00</pPIS><vPIS>0.00</vPIS></PISAliq></PIS><COFINS><COFINSAliq><CST>01</CST><vBC>0.00</vBC><pCOFINS>0.00</pCOFINS><vCOFINS>0.00</vCOFINS></COFINSAliq></COFINS></imposto></det><det nItem="3"><prod><cProd>23004</cProd><cEAN>7896051125037</cEAN><xProd>IOGURTE FRUTAMBE BAUNILHA AMEIXA 130GR</xProd><NCM>40310000</NCM><CFOP>5411</CFOP><uCom>UN</uCom><qCom>7.0000</qCom><vUnCom>0.9800000000</vUnCom><vProd>6.86</vProd><cEANTrib/><uTrib>UN</uTrib><qTrib>7.0000</qTrib><vUnTrib>0.9800000000</vUnTrib><vOutro>0.15</vOutro><indTot>1</indTot></prod><imposto><ICMS><ICMS70><orig>0</orig><CST>70</CST><modBC>2</modBC><pRedBC>61.11</pRedBC><vBC>2.67</vBC><pICMS>18.00</pICMS><vICMS>0.48</vICMS><modBCST>0</modBCST><vBCST>0.00</vBCST><pICMSST>0.00</pICMSST><vICMSST>0.00</vICMSST></ICMS70></ICMS><PIS><PISAliq><CST>01</CST><vBC>0.00</vBC><pPIS>0.00</pPIS><vPIS>0.00</vPIS></PISAliq></PIS><COFINS><COFINSAliq><CST>01</CST><vBC>0.00</vBC><pCOFINS>0.00</pCOFINS><vCOFINS>0.00</vCOFINS></COFINSAliq></COFINS></imposto></det><det nItem="4"><prod><cProd>23005</cProd><cEAN>7896051125259</cEAN><xProd>IOGURTE FRUTAMBE BAUNILHA MARACUJA 130GR</xProd><NCM>40310000</NCM><CFOP>5411</CFOP><uCom>UN</uCom><qCom>9.0000</qCom><vUnCom>0.9500000000</vUnCom><vProd>8.55</vProd><cEANTrib/><uTrib>UN</uTrib><qTrib>9.0000</qTrib><vUnTrib>0.9500000000</vUnTrib><vOutro>0.18</vOutro><indTot>1</indTot></prod><imposto><ICMS><ICMS70><orig>0</orig><CST>70</CST><modBC>2</modBC><pRedBC>61.11</pRedBC><vBC>3.33</vBC><pICMS>18.00</pICMS><vICMS>0.60</vICMS><modBCST>0</modBCST><vBCST>0.00</vBCST><pICMSST>0.00</pICMSST><vICMSST>0.00</vICMSST></ICMS70></ICMS><PIS><PISAliq><CST>01</CST><vBC>0.00</vBC><pPIS>0.00</pPIS><vPIS>0.00</vPIS></PISAliq></PIS><COFINS><COFINSAliq><CST>01</CST><vBC>0.00</vBC><pCOFINS>0.00</pCOFINS><vCOFINS>0.00</vCOFINS></COFINSAliq></COFINS></imposto></det><det nItem="5"><prod><cProd>23010</cProd><cEAN>7896051127093</cEAN><xProd>IOGURTE ITAMBE GOODY FRUTI 600GR</xProd><NCM>04039000</NCM><CFOP>5411</CFOP><uCom>UN</uCom><qCom>5.0000</qCom><vUnCom>1.7500000000</vUnCom><vProd>8.75</vProd><cEANTrib/><uTrib>UN</uTrib><qTrib>5.0000</qTrib><vUnTrib>1.7500000000</vUnTrib><vOutro>0.19</vOutro><indTot>1</indTot></prod><imposto><ICMS><ICMS70><orig>0</orig><CST>70</CST><modBC>2</modBC><pRedBC>61.11</pRedBC><vBC>3.40</vBC><pICMS>18.00</pICMS><vICMS>0.61</vICMS><modBCST>0</modBCST><vBCST>0.00</vBCST><pICMSST>0.00</pICMSST><vICMSST>0.00</vICMSST></ICMS70></ICMS><PIS><PISAliq><CST>01</CST><vBC>0.00</vBC><pPIS>0.00</pPIS><vPIS>0.00</vPIS></PISAliq></PIS><COFINS><COFINSAliq><CST>01</CST><vBC>0.00</vBC><pCOFINS>0.00</pCOFINS><vCOFINS>0.00</vCOFINS></COFINSAliq></COFINS></imposto></det><det nItem="6"><prod><cProd>23011</cProd><cEAN>7896051121268</cEAN><xProd>IOGURTE ITAMBE NATURAL C/MEL 180GR</xProd><NCM>40310000</NCM><CFOP>5411</CFOP><uCom>UN</uCom><qCom>7.0000</qCom><vUnCom>0.8900000000</vUnCom><vProd>6.23</vProd><cEANTrib/><uTrib>UN</uTrib><qTrib>7.0000</qTrib><vUnTrib>0.8900000000</vUnTrib><vOutro>0.13</vOutro><indTot>1</indTot></prod><imposto><ICMS><ICMS70><orig>0</orig><CST>70</CST><modBC>2</modBC><pRedBC>61.11</pRedBC><vBC>2.42</vBC><pICMS>18.00</pICMS><vICMS>0.44</vICMS><modBCST>0</modBCST><vBCST>0.00</vBCST><pICMSST>0.00</pICMSST><vICMSST>0.00</vICMSST></ICMS70></ICMS><PIS><PISAliq><CST>01</CST><vBC>0.00</vBC><pPIS>0.00</pPIS><vPIS>0.00</vPIS></PISAliq></PIS><COFINS><COFINSAliq><CST>01</CST><vBC>0.00</vBC><pCOFINS>0.00</pCOFINS><vCOFINS>0.00</vCOFINS></COFINSAliq></COFINS></imposto></det><det nItem="7"><prod><cProd>23012</cProd><cEAN>7896051121282</cEAN><xProd>IOGURTE ITAMBE NATURAL DESNATADO 180GR</xProd><NCM>40310000</NCM><CFOP>5411</CFOP><uCom>UN</uCom><qCom>2.0000</qCom><vUnCom>0.8900000000</vUnCom><vProd>1.78</vProd><cEANTrib/><uTrib>UN</uTrib><qTrib>2.0000</qTrib><vUnTrib>0.8900000000</vUnTrib><vOutro>0.04</vOutro><indTot>1</indTot></prod><imposto><ICMS><ICMS70><orig>0</orig><CST>70</CST><modBC>2</modBC><pRedBC>61.11</pRedBC><vBC>0.69</vBC><pICMS>18.00</pICMS><vICMS>0.12</vICMS><modBCST>0</modBCST><vBCST>0.00</vBCST><pICMSST>0.00</pICMSST><vICMSST>0.00</vICMSST></ICMS70></ICMS><PIS><PISAliq><CST>01</CST><vBC>0.00</vBC><pPIS>0.00</pPIS><vPIS>0.00</vPIS></PISAliq></PIS><COFINS><COFINSAliq><CST>01</CST><vBC>0.00</vBC><pCOFINS>0.00</pCOFINS><vCOFINS>0.00</vCOFINS></COFINSAliq></COFINS></imposto></det><det nItem="8"><prod><cProd>23014</cProd><cEAN>7896051121251</cEAN><xProd>IOGURTE ITAMBE NATURAL INTEGRAL 180GR</xProd><NCM>40310000</NCM><CFOP>5411</CFOP><uCom>UN</uCom><qCom>7.0000</qCom><vUnCom>0.8900000000</vUnCom><vProd>6.23</vProd><cEANTrib/><uTrib>UN</uTrib><qTrib>7.0000</qTrib><vUnTrib>0.8900000000</vUnTrib><vOutro>0.13</vOutro><indTot>1</indTot></prod><imposto><ICMS><ICMS70><orig>0</orig><CST>70</CST><modBC>2</modBC><pRedBC>61.11</pRedBC><vBC>2.42</vBC><pICMS>18.00</pICMS><vICMS>0.44</vICMS><modBCST>0</modBCST><vBCST>0.00</vBCST><pICMSST>0.00</pICMSST><vICMSST>0.00</vICMSST></ICMS70></ICMS><PIS><PISAliq><CST>01</CST><vBC>0.00</vBC><pPIS>0.00</pPIS><vPIS>0.00</vPIS></PISAliq></PIS><COFINS><COFINSAliq><CST>01</CST><vBC>0.00</vBC><pCOFINS>0.00</pCOFINS><vCOFINS>0.00</vCOFINS></COFINSAliq></COFINS></imposto></det><det nItem="9"><prod><cProd>23014</cProd><cEAN>7896051121251</cEAN><xProd>IOGURTE ITAMBE NATURAL INTEGRAL 180GR</xProd><NCM>40310000</NCM><CFOP>5411</CFOP><uCom>UN</uCom><qCom>8.0000</qCom><vUnCom>1.2500000000</vUnCom><vProd>10.00</vProd><cEANTrib/><uTrib>UN</uTrib><qTrib>8.0000</qTrib><vUnTrib>1.2500000000</vUnTrib><vOutro>0.21</vOutro><indTot>1</indTot></prod><imposto><ICMS><ICMS70><orig>0</orig><CST>70</CST><modBC>2</modBC><pRedBC>61.11</pRedBC><vBC>3.89</vBC><pICMS>18.00</pICMS><vICMS>0.70</vICMS><modBCST>0</modBCST><vBCST>0.00</vBCST><pICMSST>0.00</pICMSST><vICMSST>0.00</vICMSST></ICMS70></ICMS><PIS><PISAliq><CST>01</CST><vBC>0.00</vBC><pPIS>0.00</pPIS><vPIS>0.00</vPIS></PISAliq></PIS><COFINS><COFINSAliq><CST>01</CST><vBC>0.00</vBC><pCOFINS>0.00</pCOFINS><vCOFINS>0.00</vCOFINS></COFINSAliq></COFINS></imposto></det><det nItem="10"><prod><cProd>23017</cProd><cEAN>7896051142249</cEAN><xProd>IOGURTE ITAMBEZINHO FRUTAS 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360GR</xProd><NCM>04061090</NCM><CFOP>5411</CFOP><uCom>UN</uCom><qCom>2.0000</qCom><vUnCom>1.9600000000</vUnCom><vProd>3.92</vProd><cEANTrib/><uTrib>UN</uTrib><qTrib>2.0000</qTrib><vUnTrib>1.9600000000</vUnTrib><vOutro>0.08</vOutro><indTot>1</indTot></prod><imposto><ICMS><ICMS70><orig>0</orig><CST>70</CST><modBC>2</modBC><pRedBC>61.11</pRedBC><vBC>1.52</vBC><pICMS>18.00</pICMS><vICMS>0.27</vICMS><modBCST>0</modBCST><vBCST>0.00</vBCST><pICMSST>0.00</pICMSST><vICMSST>0.00</vICMSST></ICMS70></ICMS><PIS><PISNT><CST>06</CST></PISNT></PIS><COFINS><COFINSNT><CST>06</CST></COFINSNT></COFINS></imposto></det><det nItem="12"><prod><cProd>23020</cProd><cEAN>7896051123842</cEAN><xProd>IOGURTE VITAMBE COCO 180GR</xProd><NCM>40310000</NCM><CFOP>5411</CFOP><uCom>UN</uCom><qCom>15.0000</qCom><vUnCom>0.8500000000</vUnCom><vProd>12.75</vProd><cEANTrib/><uTrib>UN</uTrib><qTrib>15.0000</qTrib><vUnTrib>0.8500000000</vUnTrib><vOutro>0.27</vOutro><indTot>1</indTot></prod><imposto><ICMS><ICMS70><orig>0</orig><CST>70</CST><modBC>2</modBC><pRedBC>61.11</pRedBC><vBC>4.96</vBC><pICMS>18.00</pICMS><vICMS>0.89</vICMS><modBCST>0</modBCST><vBCST>0.00</vBCST><pICMSST>0.00</pICMSST><vICMSST>0.00</vICMSST></ICMS70></ICMS><PIS><PISNT><CST>06</CST></PISNT></PIS><COFINS><COFINSNT><CST>06</CST></COFINSNT></COFINS></imposto></det><det nItem="13"><prod><cProd>23021</cProd><cEAN>7896051123859</cEAN><xProd>IOGURTE VITAMBE FRUTAS VERMELHAS 180GR</xProd><NCM>40310000</NCM><CFOP>5411</CFOP><uCom>UN</uCom><qCom>1.0000</qCom><vUnCom>0.8500000000</vUnCom><vProd>0.85</vProd><cEANTrib/><uTrib>UN</uTrib><qTrib>1.0000</qTrib><vUnTrib>0.8500000000</vUnTrib><vOutro>0.02</vOutro><indTot>1</indTot></prod><imposto><ICMS><ICMS70><orig>0</orig><CST>70</CST><modBC>2</modBC><pRedBC>61.11</pRedBC><vBC>0.33</vBC><pICMS>18.00</pICMS><vICMS>0.06</vICMS><modBCST>0</modBCST><vBCST>0.00</vBCST><pICMSST>0.00</pICMSST><vICMSST>0.00</vICMSST></ICMS70></ICMS><PIS><PISNT><CST>06</CST></PISNT></PIS><COFINS><COFINSNT><CST>06</CST></COFINSNT></COFINS></imposto></det><det nItem="14"><prod><cProd>23023</cProd><cEAN>7896051123828</cEAN><xProd>IOGURTE VITAMBE MARACUJA 180GR</xProd><NCM>40310000</NCM><CFOP>5411</CFOP><uCom>UN</uCom><qCom>2.0000</qCom><vUnCom>0.8500000000</vUnCom><vProd>1.70</vProd><cEANTrib/><uTrib>UN</uTrib><qTrib>2.0000</qTrib><vUnTrib>0.8500000000</vUnTrib><vOutro>0.04</vOutro><indTot>1</indTot></prod><imposto><ICMS><ICMS70><orig>0</orig><CST>70</CST><modBC>2</modBC><pRedBC>61.11</pRedBC><vBC>0.66</vBC><pICMS>18.00</pICMS><vICMS>0.12</vICMS><modBCST>0</modBCST><vBCST>0.00</vBCST><pICMSST>0.00</pICMSST><vICMSST>0.00</vICMSST></ICMS70></ICMS><PIS><PISNT><CST>06</CST></PISNT></PIS><COFINS><COFINSNT><CST>06</CST></COFINSNT></COFINS></imposto></det><det nItem="15"><prod><cProd>23024</cProd><cEAN>7896051123811</cEAN><xProd>IOGUTE VITAMBE MORANGO 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    at java.net.URL.<init>(Unknown Source)
    at java.net.URL.<init>(Unknown Source)
    at java.net.URL.<init>(Unknown Source)
    at com.sun.org.apache.xerces.internal.impl.XMLEntityManager.setupCurrentEntity(Unknown Source)
    at com.sun.org.apache.xerces.internal.impl.XMLVersionDetector.determineDocVersion(Unknown Source)
    at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown Source)
    at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown Source)
    at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(Unknown Source)
    at com.sun.org.apache.xerces.internal.parsers.DOMParser.parse(Unknown Source)
    at com.sun.org.apache.xerces.internal.jaxp.DocumentBuilderImpl.parse(Unknown Source)
    at javax.xml.parsers.DocumentBuilder.parse(Unknown Source)
    at com.nfehost.util.XmlUtil.xmlVersion(XmlUtil.java:34)
    at com.nfehost.service.processadora.Processadora.main(Processadora.java:13)

我想传递一个字符串但是我收到一个错误，如果传递一个文件，一切正常。

如何解析xml文件中的String源？

我的xml有一个命名空间

Answer 1

您正在使用的方法DocumentBuilder#parse(String)需要XML源的URI（例如文件或HTTP URI），它包含XML内容，而不是XML内容本身。

如果您确实希望将XML内容作为String传递，请考虑将InputSource传递给StringReader到DocumentBuilder#parse(InputSource)：

documentBuilder.parse(new InputSource(new StringReader(source)));

试图解析xml但得到malformedURLexception

1 个答案: