java - 使用java替换xml字符串中精确匹配的字符串

Question

我读了很多关于用正则表达式替换 xml 值中的字符串的文章。在许多文章中，大多数人都接受了

str=str.replaceAll("\\b2017\\b", "****"); 

但这并没有按预期工作，并且也在其他地方取代了 2017 年。下面是我的例子。

public class StringTest {

    public static void main(String[] args) {
        String str=
                "<OTA_InsuranceBookRQ xmlns=\"http://www.opentravel.org/OTA/2003/05\" Version=\"2.001\">                        "+
                        "  <POS>                        "+
                        "    <Source>                       "+
                        "      <TPA_Extensions>                     "+
                        "        <ProductCode>101468</ProductCode>                      "+
                        "        <PurchaseDate>2017-08-21</PurchaseDate>                        "+
                        "        <TransactionType>PURCHASE</TransactionType>                        "+
                        "        <SubmissionType>MerchantXMLPurchase</SubmissionType>                       "+
                        "      </TPA_Extensions>                        "+
                        "    </Source>                      "+
                        "  </POS>                       "+
                        "  <PlanForBookRQ PlanID=\"245235\">                        "+
                        "    <InsCoverageDetail>                        "+
                        "      <CoveredTrips>                       "+
                        "        <CoveredTrip DepositDate=\"2017-08-11T00:00:00.000Z\" End=\"2017-09-03\" FinalPayDate=\"2017-08-14T00:00:00.000Z\" Start=\"2017-09-02\">                       "+
                        "          <Destinations>                       "+
                        "            <Destination>                      "+
                        "              <StateProv/>                     "+
                        "              <CountryName>Germany</CountryName>                       "+
                        "            </Destination>                     "+
                        "          </Destinations>                      "+
                        "          <Operators>                      "+
                        "            <Operator CompanyShortName=\"Delta\" TravelSector=\"Airline\"/>                        "+
                        "            <Operator CompanyShortName=\"Carnival\" TravelSector=\"CruiseLine\"/>                      "+
                        "          </Operators>                     "+
                        "        </CoveredTrip>                     "+
                        "      </CoveredTrips>                      "+
                        "    </InsCoverageDetail>                       "+
                        "    <InsuranceCustomer>                        "+
                        "      <PaymentForm CostCenterID=\"ONLINE\" GuaranteeID=\"243356\" RPH=\"\" Remark=\"customerconfirmation@email.com\">                      "+
                        "        <PaymentCard ExpireDate=\"2017\">                      "+
                        "          <CardType Code=\"VISA\"/>                        "+
                        "          <CardHolderName>Test Booking</CardHolderName>                        "+
                        "          <Telephone PhoneNumber=\"1234567890\"/>                      "+
                        "          <Email>errorreporting@email.com</Email>                      "+
                        "          <CardNumber EncryptedValue=\"4111111111111111\"/>                        "+
                        "          <SeriesCode EncryptedValue=\"Agent who sold policy\"/>                       "+
                        "        </PaymentCard>                     "+
                        "      </PaymentForm>                       "+
                        "    </InsuranceCustomer>                       "+
                        "  </PlanForBookRQ>                     "+
                        "</OTA_InsuranceBookRQ>";
                   str=str.replaceAll("\\b2017\\b", "****");
        System.out.println(str);
    }

}

当我运行此程序时，预期结果是 <PaymentCard ExpireDate="2017"> 应替换为 <PaymentCard ExpireDate="****">，但与此同时，它还将 <PurchaseDate>2017-08-21</PurchaseDate> 中的 2017 年值替换为 <PurchaseDate>****-08-21</PurchaseDate>，这在我的情况下是 Not Acceptable 。

我也尝试过使用下面的正则表达式，但没有运气。

str=str.replaceAll("(?<!\\S)2017(?!\\S)", "****");

请不要将其标记为重复并将其关闭，因为没有答案按预期工作。

Answer 1

如果您尝试替换引号中的“2017”，只需明确执行即可:

str = str.replace("\"2017\"", "\"****\"");