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1.引入common-lang-2.4.jar
2.StringEscapeUtils.unescapeHtml4(需要准反转义的字符串);
//反转义字符串
if(!"".equals(mpDetail.getPayment())&&mpDetail.getPayment()!=null){
String s = StringEscapeUtils.unescapeHtml4(xxxxx.getPayment());
xxxx.setPayment(s);//反转义之后重新复制给源数据
}