java 解析 url

public static Map<String, String> getParamsMap(String URL) {
Map<String, String> mapRequest = new HashMap<String, String>();
try {
String[] arrSplit = null;
String strUrlParam = TruncateUrlPage(URL);
if (strUrlParam == null) {
return mapRequest;
}
arrSplit = strUrlParam.split("[&]");
for (String strSplit : arrSplit) {
String[] arrSplitEqual = null;
arrSplitEqual = strSplit.split("[=]");

if (arrSplitEqual.length > 1) {
mapRequest.put(arrSplitEqual[0], arrSplitEqual[1]);
} else {
if (arrSplitEqual[0] != "") {
mapRequest.put(arrSplitEqual[0], "");
}
}
}
} catch (Exception e) {
}
return mapRequest;
}

private static String TruncateUrlPage(String strURL) {
String strAllParam = null;
try {
String[] arrSplit = null;
strURL = strURL.trim().toLowerCase();
arrSplit = strURL.split("[?]");
if (strURL.length() > 1) {
if (arrSplit.length > 1) {
if (arrSplit[1] != null) {
strAllParam = arrSplit[1];
}
}
}
} catch (Exception e) {
}
return strAllParam;
}