从 SAXparser 类 (Java) 解析字符串时出现 Long.parseLong 错误

Question

I have a problem but I don't know how to solve it: I need to get a Long number from a String (I get this string in a SAXparser class I wrote to get some fields from an XML file).

Here you are the problematic code:

if (bprice) {
String price = new String(ch, start, length);
System.out.println("Product price: " + price);
bprice = false;
if (price.equalsIgnoreCase("0"))
product.price = null;
else product.price = Long.parseLong(price);
}

( product is an instance from an object where I store all the product information. I got the error in the last line)

I debugged it and I got this:

Exception occurred in target VM: For input string: "1.04" java.lang.NumberFormatException: For input string: "1.04" at java.lang.NumberFormatException.forInputString(NumberFormatException.java:48) at java.lang.Long.parseLong(Long.java:419) at java.lang.Long.parseLong(Long.java:468) at parsers.LectorXML.characters(LectorXML.java:325) at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.characters(AbstractSAXParser.java:538) at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java:464) at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:808) at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:737) at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(XMLParser.java:119) at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(AbstractSAXParser.java:1205) at parsers.LectorXML.leer(LectorXML.java:71) at parse rs.LeerXML.main(LeerXML.java:20) <

Answer 1

1.04 is not a valid long. It is in double format.

You need to use Double.parseDouble(String); instead.

Example:

Double.parseDouble(precio1);