一个挺有用的获取tomcat项目路径的工具类

import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.UnsupportedEncodingException;
import java.util.Date;
import java.util.Properties;
import java.util.StringTokenizer;

import org.omg.CORBA.Object;

public class Util {

public Util() {
}

private static void byte2hex(byte b, StringBuffer buf) {
char[] hexChars = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9',
'A', 'B', 'C', 'D', 'E', 'F' };
int high = ((b & 0xf0) >> 4);
int low = (b & 0x0f);
buf.append(hexChars[high]);
buf.append(hexChars[low]);
}

public static String toHexStr(byte[] t, int start, int end) {
StringBuffer sb = new StringBuffer();
for (int i = 0; i < t.length; i++) {
if (start <= i && end >= i) {
if (t[i] != 0) {
byte2hex(t[i], sb);
sb.append(" ");
}
}
}
return sb.toString();
}

/**
* Splits the string on every token into an array of stack frames.
*
* @param string
*            the string
* @param onToken
*            the token
* @return the resultant array //@deprecated This is an internal utility
*         method that should not be used
*/
public static String[] splitString(String string, String onToken) {
if (string == null)
return null;
final StringTokenizer tokenizer = new StringTokenizer(string, onToken);
final String[] result = new String[tokenizer.countTokens()];

for (int i = 0; i < result.length; i++) {
result[i] = tokenizer.nextToken();
}

return result;
}

public static String getWebModulPath() {
String ret = getWebinfPath();
int cnt = ret.indexOf("/WEB-INF");
if (cnt > -1)
ret = ret.substring(0, cnt);
return ret;
}

private static String _webinfPath = null;

public static String getWebinfPath() {
if (_webinfPath == null) {
String res = null;
Util u = new Util();
String classname = u.getClass().getName().replace('.', '/')
+ ".class";
ClassLoader cl = u.getClass().getClassLoader();
if (cl != null) {
java.net.URL url = cl.getResource(classname);
if (url != null) {
String path = url.getFile();
int fileStrPosition = path.indexOf("file:/");
int begin = 0;
int end = path.length();

if (fileStrPosition >= 0)
begin = fileStrPosition + 5;

// 先判断是否是未打包文件

end = path.indexOf("classes/" + classname);
if (end < 0) {
// 如果是在webModule下面的jar包

end = path.indexOf("lib/");
if (end < 0) {
// 在普通目录下的jar包

int tmpend = path.indexOf("!/");
end = path.substring(0, tmpend).lastIndexOf("/");
}
}
String rf = path.substring(begin, end);
res = new File(rf).getAbsolutePath().replace('\\', '/')
+ "/";
}
}
try {
_webinfPath = java.net.URLDecoder.decode(res, "UTF-8");
} catch (UnsupportedEncodingException ex) {
}
System.out.println("WEB-INF Path=" + _webinfPath);
}
return _webinfPath;
}

private static String _systemPath = null;

public static String getSystemPath() {
if (_systemPath == null) {
String res = getWebinfPath();
if (res.indexOf("WEB-INF/") > 0 && res.length() > 10) {
res = res.substring(0, res.lastIndexOf("/", res.length() - 12))
+ "/";
}
_systemPath = res;
System.out.println("System Path=" + _systemPath);
}
return _systemPath;
}

public static boolean checkStr(String str){
if(str!=null && !"".equals(str))
return true;
else
return false;
}

public static boolean checkDate(Date date){
if(date!=null && !date.toString().equals(""))
return true;
else
return false;
}

public static boolean checkObj(Object obj){
if(obj!=null && !obj.equals(""))
return true;
else
return false;
}

public static void main(String [] args){
System.out.println(getWebinfPath());
}

/**
* 获得能量等级
*
* @param sex
* @param weight
* @param height
* @param age
* @return
*/
public static int energyDJ(int sex, float weight, float height, int age){
int systarget = 0;
if (sex == 1) {
systarget =  FloatRigor.getIntNum(1.2f * (66 + 13.7f * weight + 5* height - 6.8f * age)*0.9f);
} else {
systarget = FloatRigor.getIntNum(1.2f * (655 + 9.6f * weight + 1.8f* height - 4.7f * age)*0.9f);
}
if (systarget < 1400)
return 1200;
else if (systarget < 1600)
return 1400;
else if (systarget < 1800)
return 1600;
else if (systarget < 2000)
return 1800;
else if (systarget < 2200)
return 2000;
else if (systarget < 2400)
return 2200;
else if (systarget < 2600)
return 2400;
else
return 2600;
}

/**
* 返回Properties对象
*
* @author xhx 2008-4-28
* @param filename
* @return
* @throws IOException
*/
public static Properties getProperties(String path) throws IOException {
File file = new File(path);
Properties p = new Properties();
if (file.exists()) {
FileInputStream input;
input = new FileInputStream(path);
p.load(input);
return p;
} else {
return null;
}
}

}

Util.getSystemPath():D:/webspace/enterprise/
Util.getWebinfPath():D:/webspace/enterprise/WebRoot/WEB-INF/
Util.getWebModulPath():D:/webspace/enterprise/WebRoot