字符串格式删除后的所有内容 </table> 标签

Question

I have a string of HTML that contains a table.
However in some cases there are characters after the </table> tag.
I want to remove everything after the </table> tag from the string.
Any ideas on how I might do this in Java?

Answer 1

假设str是此字符串，则可以执行以下操作：

str = str.replaceAll("</table>.*","</table>");

Answer 2

Use regular expressions as @Andrew Logvinov suggests.

str.replaceAll("</table>.*","</table>");

What this means, is: take the literal String "</table>" follewed by any character . repeated zero or more times * and replace it for the literal String "</table>"

Note that this method replaces all (so it takes the first match and delete the rest of the string), so if you have multiple tables, or nested tables this won't work any good. Learn to use regular expressions for a better solution. (Or just work with indexOf and whatever methods are in the String class)

Answer 3

String endTableTag = "</table>";
String html = "<table><tr><td>Hello</td></tr></table>yadayadayada";
int index = html.lastIndexOf(endTableTag);
String cleanedup;
if (index>-1) {
    // Removes everything after the last table end tag
    cleanedup = html.substring(0, index + endTableTag.length());
} else {
    cleanedup = html;
}
System.out.println(cleanedup);

Answer 4

String test = "testabc</table>anothertest</table>hahhah";
test = str.substring(0, (str.lastIndexOf("</table>")+"</table>".length()));
System.out.println(str.substring(0, (str.lastIndexOf("</table>")+"</table>".length())));
System.out.println(test);

or to test it...

test.replaceAll("</table>.*","</table>"); would be better! ;) 

Is good, but if you have more that 1 you might get problems! ;) So its better to work with "lastIndexOf()" imho!