1.引入common-lang-2.4.jar
2.StringEscapeUtils.unescapeHtml4(需要準反轉義的字元串);
//反轉義字元串
if(!"".equals(mpDetail.getPayment())&&mpDetail.getPayment()!=null){
String s = StringEscapeUtils.unescapeHtml4(xxxxx.getPayment());
xxxx.setPayment(s);//反轉義之後重新複制給源資料
}