/** 创建md5摘要,规则是:按参数名称a-z排序,遇到空值的参数不参加签名。 */
public String createSign(SortedMap<String, String> packageParams) {
StringBuffer sb = new StringBuffer();
Set es = packageParams.entrySet();
Iterator it = es.iterator();
while (it.hasNext()) {
Map.Entry entry = (Map.Entry) it.next();
String k = (String) entry.getKey();
String v = (String) entry.getValue();
if (null != v && !"".equals(v) && !"sign".equals(k) && !"key".equals(k)) {
sb.append(k + "=" + v + "&");
}
}
sb.append("key=" + this.getKey());
System.out.println("md5 sb:" + sb);
String sign = MD5Util.MD5Encode(sb.toString(), this.charset).toUpperCase();
return sign;
}
/** 创建package签名 */
public boolean createMd5Sign(String signParams) {
StringBuffer sb = new StringBuffer();
Set es = this.parameters.entrySet();
Iterator it = es.iterator();
while (it.hasNext()) {
Map.Entry entry = (Map.Entry) it.next();
String k = (String) entry.getKey();
String v = (String) entry.getValue();
if (!"sign".equals(k) && null != v && !"".equals(v)) {
sb.append(k + "=" + v + "&");
}
}
// 算出摘要
String enc = TenpayUtil.getCharacterEncoding(this.request, this.response);
String sign = MD5Util.MD5Encode(sb.toString(), enc).toLowerCase();
String tenpaySign = this.getParameter("sign").toLowerCase();
// debug信息
this.setDebugInfo(sb.toString() + " => sign:" + sign + " tenpaySign:" + tenpaySign);
return tenpaySign.equals(sign);
}