java读取和修改ini配置文件

package mytools;

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

/**
* 这是个配置文档操作类，用来读取和配置ini配置文档
*
* @author 由月
* @version 2004-08-18
* @修改 2008-05-22
*/
public final class ConfigurationFile {
/**
* 从ini配置文档中读取变量的值
*
* @param file
*            配置文档的路径
* @param section
*            要获取的变量所在段名称
* @param variable
*            要获取的变量名称
* @param defaultValue
*            变量名称不存在时的默认值
* @return 变量的值
* @throws IOException
*             抛出文档操作可能出现的io异常
*/
public static String getProfileString(String file, String section,
String variable, String defaultValue) throws IOException {
String strLine, value = "";
BufferedReader bufferedReader = new BufferedReader(new FileReader(file));
boolean isInSection = false;
try {
while ((strLine = bufferedReader.readLine()) != null) {
strLine = strLine.trim();
// strLine = strLine.split("[;]")[0];
Pattern p;
Matcher m;
p = Pattern.compile("[url=file://[.*//]\\[.*\\]");
m = p.matcher((strLine));
if (m.matches()) {
p = Pattern.compile("[url=file://[(.*)//]\\[(.*)\\]");
m = p.matcher(strLine);
if (m.matches()) {
isInSection = true;
} else {
isInSection = false;
}
}
if (isInSection == true) {
strLine = strLine.trim();
String[] strArray = strLine.split("=");
if (strArray.length == 1) {
value = strArray[0].trim();
if (value.equalsIgnoreCase(variable)) {
value = "";
return value;
}
} else if (strArray.length == 2) {
value = strArray[0].trim();
if (value.equalsIgnoreCase(variable)) {
value = strArray[1].trim();
return value;
}
} else if (strArray.length > 2) {
value = strArray[0].trim();
if (value.equalsIgnoreCase(variable)) {
value = strLine.substring(strLine.indexOf("=") + 1)
.trim();
return value;
}
}
}
}
} finally {
bufferedReader.close();
}
return defaultValue;
}

/**
* 修改ini配置文档中变量的值
*
* @param file
*            配置文档的路径
* @param section
*            要修改的变量所在段名称
* @param variable
*            要修改的变量名称
* @param value
*            变量的新值
* @throws IOException
*             抛出文档操作可能出现的io异常
*/
public static boolean setProfileString(String file, String section,
String variable, String value) throws IOException {
String fileContent, allLine, strLine, newLine, remarkStr;
String getValue;
BufferedReader bufferedReader = new BufferedReader(new FileReader(file));
boolean isInSection = false;
fileContent = "";
try {

while ((allLine = bufferedReader.readLine()) != null) {
allLine = allLine.trim();
System.out.println("allLine == " + allLine);
// if (allLine.split("[;]").length > 1)
// remarkStr = ";" + allLine.split(";")[1];
// else
// remarkStr = "";
// strLine = allLine.split(";")[0];
strLine = allLine;
Pattern p;
Matcher m;
p = Pattern.compile("[url=file://[.*//]\\[.*\\]");
m = p.matcher((strLine));
if (m.matches()) {
p = Pattern.compile("[url=file://[(.*)//]\\[(.*)\\]");
m = p.matcher(strLine);
if (m.matches()) {
isInSection = true;
} else {
isInSection = false;
}
}
if (isInSection == true) {
strLine = strLine.trim();
String[] strArray = strLine.split("=");
getValue = strArray[0].trim();
if (getValue.equalsIgnoreCase(variable)) {
// newLine = getValue + " = " + value + " " + remarkStr;
newLine = getValue + " = " + value + " ";
fileContent += newLine + "\r\n";
while ((allLine = bufferedReader.readLine()) != null) {
fileContent += allLine + "\r\n";
}
bufferedReader.close();
BufferedWriter bufferedWriter = new BufferedWriter(
new FileWriter(file, false));
bufferedWriter.write(fileContent);
bufferedWriter.flush();
bufferedWriter.close();

return true;
}
}
fileContent += allLine + "\r\n";
}
} catch (IOException ex) {
throw ex;
} finally {
bufferedReader.close();
}
return false;
}

/**
* 程式测试
*/
public static void main(String[] args) {
// String value = Config.getProfileString("sysconfig.ini", "Option",
// "OracleDB", "default");
// System.out.println(value);
try {
System.out.println("值已经改变!... "
+ ConfigurationFile.setProfileString(
"F:/update/gamewww.ini", "TestSect1", "1001",
"111111"));
System.out.println("值读取成功!... "
+ ConfigurationFile.getProfileString(
"F:/update/gamewww.ini", "TestSect1", "1001", ""));
} catch (IOException e) {
System.out.println("错误 ......" + e.toString());
}
}
}