html處理工具類--替換頁面中數據庫照片路徑爲服務器域名

public static String replaceHtmlTag(String str, String tag, String tagAttrib, String startTag, String endTag) {
    String regxpForTag = "<\\s*" + tag + "\\s+([^>]*)\\s*" ;
    String regxpForTagAttrib = tagAttrib + "=\\s*\"([^\"]+)\"" ;
    Pattern patternForTag = Pattern.compile (regxpForTag,Pattern. CASE_INSENSITIVE );
    Pattern patternForAttrib = Pattern.compile (regxpForTagAttrib,Pattern. CASE_INSENSITIVE );
    Matcher matcherForTag = patternForTag.matcher(str);
    StringBuffer sb = new StringBuffer();
    boolean result = matcherForTag.find();
    while (result) {
        StringBuffer sbreplace = new StringBuffer( "<"+tag+" ");
        Matcher matcherForAttrib = patternForAttrib.matcher(matcherForTag.group(1));
        if (matcherForAttrib.find()) {
            String attributeStr = matcherForAttrib.group(1);
            matcherForAttrib.appendReplacement(sbreplace, startTag + attributeStr + endTag);
        }
        matcherForAttrib.appendTail(sbreplace);
        matcherForTag.appendReplacement(sb, sbreplace.toString());
        result = matcherForTag.find();
    }
    matcherForTag.appendTail(sb);
    return sb.toString();
}

public static void main(String[] args) {
    StringBuffer content = new StringBuffer();
    content.append("<ul class=\"imgBox\"><li><img id=\"160424\" src=\"uploads/allimg/160424/1-160424120T1-50.jpg\" class=\"src_class\"></li>");
    content.append("<li><img id=\"150628\" src=\"uploads/allimg/150628/1-15062Q12247.jpg\" class=\"src_class\"></li></ul>");
    System.out.println("原始字符串爲:"+content.toString());
    String newStr = replaceHtmlTag(content.toString(), "img", "src", "src=\"http://junlenet.com/", "\"");
    System.out.println("  替換後爲:"+newStr);
}