/**
* 获得应用中制定目录中文件的路径
*
* @param servletContStriext
* @param _dir：文件存放的目录
* @return
*/
public static String getServerFilePath(ServletContext servletContext, String _dir) {
// String filePath = servletContStriext.getRealPath("/");
String path = null;
if (ServerDetector.isTomcat()) { // tomcat server
path = servletContext.getRealPath("/") + _dir + "/";
} else if (ServerDetector.isWebLogic()) { // weblogic server
path = servletContext.getRealPath("/") + "\\" + _dir + "\\";
}
return path;
}
private static long _parseLong(String value, long defaultValue) {
if (_useJDKParseLong == null) {
if (OSDetector.isAIX()
&& ServerDetector.isWebSphere()
&& JavaDetector.isIBM()
&& JavaDetector.is64bit()) {
_useJDKParseLong = Boolean.TRUE;
} else {
_useJDKParseLong = Boolean.FALSE;
}
}
if (_useJDKParseLong) {
try {
return Long.parseLong(value);
} catch (NumberFormatException nfe) {
return defaultValue;
}
}
int length = value.length();
if (length <= 0) {
return defaultValue;
}
int pos = 0;
long limit = -Long.MAX_VALUE;
boolean negative = false;
char c = value.charAt(0);
if (c < CharPool.NUMBER_0) {
if (c == CharPool.MINUS) {
limit = Long.MIN_VALUE;
negative = true;
} else if (c != CharPool.PLUS) {
return defaultValue;
}
if (length == 1) {
return defaultValue;
}
pos++;
}
long smallLimit = limit / 10;
long result = 0;
while (pos < length) {
if (result < smallLimit) {
return defaultValue;
}
c = value.charAt(pos++);
if ((c < CharPool.NUMBER_0) || (c > CharPool.NUMBER_9)) {
return defaultValue;
}
int number = c - CharPool.NUMBER_0;
result *= 10;
if (result < (limit + number)) {
return defaultValue;
}
result -= number;
}
if (negative) {
return result;
} else {
return -result;
}
}
