XML中的字符串中出现字符'&'查询失败

&要写成&amp才行

 

public static String replaceString(String str, String regex, String replacement) { if (str == null) { return null; } int index = -1; index = str.indexOf(regex); String strNew = ""; if (index >= 0) { while (index >= 0) { strNew += str.substring(0, index) + replacement; str = str.substring(index + regex.length()); index = str.indexOf(regex); } strNew += str; return strNew; } return str; } public static String encodeXmlString(String xml) { if (xml == null) { return ""; } xml = replaceString(xml, "&", "&"); xml = replaceString(xml, "<", "<"); xml = replaceString(xml, ">", ">"); xml = replaceString(xml, "'", "'"); xml = replaceString(xml, "/"", """); return xml; } public static String decodeXmlString(String xmlEscaped) { xmlEscaped = replaceString(xmlEscaped, "<", "<"); xmlEscaped = replaceString(xmlEscaped, ">", ">"); xmlEscaped = replaceString(xmlEscaped, "'", "'"); xmlEscaped = replaceString(xmlEscaped, """, "/""); String ret = replaceString(xmlEscaped, "&", "&"); return ret; }