如何在字符串变量中替换冒号，即使它是XML格式？

I transfer the result data to UI from XML using java. I get the output in String value. In this value, I have span tag class contain fontfamily_result font_weight:bold, because of this : colon, I can't create a CSS class. How can I remove the colon from this String Value?I transfer the result data to UI from XML using