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java 寫檔案相對路徑_java 寫入檔案時該如何擷取相對路徑?

public class DBConn {

public static String erro;

private static Context initCtx = null;

private static ComboPooledDataSource ds = null;

//private static ComboPooledDataSource dataSource;

static String strDriver;

static String strDb;

static String strUser;

static String strPsw;

static int count;

static int MIN_COUNT=5;

static int MAX_COUNT=25;

static String strDataName;

static String strHostAddress;

static int intHostPort;

static LinkedList queue;

public DBConn(String filePath){

try {

FileInputStream propsFile = new FileInputStream(filePath);

Properties properties = new Properties();

properties.load(propsFile);

propsFile.close();

strDriver = properties.getProperty("connDriver");

strDb = properties.getProperty("connDBParam");

strUser = properties.getProperty("connUser");

strPsw = properties.getProperty("connPwd");

MIN_COUNT = Integer.parseInt(properties.getProperty("minCount"));

MAX_COUNT = Integer.parseInt(properties.getProperty("maxCount"));

}

catch (Exception e) {

e.printStackTrace();

}

}

public static void main(String args[]){

Connection con = null;

try{

DBConn dbConn = new DBConn("./inf/dbConn.txt");

con = dbConn.getConnection();

System.out.println("message:"+con);

}catch (Exception e){

e.printStackTrace();

}finally {

if(con != null)

try{restoreConn(con);}catch(Exception e){}

}

}

}

dbConn.txt

connDriver=com.microsoft.sqlserver.jdbc.SQLServerDriver

connDBParam=jdbc:sqlserver://127.0.0.1:1433;selectMethod=cursor;DatabaseName=資料庫名

connUser=sa

connPwd=sa

count=10

minCount=5

maxCount=20

check=10