发个自己要用的东西，

kanodo 2010-06-21 07:40:13

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;

/**
* 这是个配置文件操作类，用来读取和设置ini配置文件
* @author 由月
* @version 2004-08-18
*/
public final class ConfigurationFile {
/**
* 从ini配置文件中读取变量的值
* @param file 配置文件的路径
* @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 抛出文件操作可能出现的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("\\[\\s*.*\\s*\\]");
m = p.matcher((strLine));
if (m.matches()) {
p = Pattern.compile("\\[\\s*" + section + "\\s*\\]");
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配置文件中变量的值
* @param file 配置文件的路径
* @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 抛出文件操作可能出现的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();
if (allLine.split("[;]").length > 1)
remarkStr = ";" + allLine.split(";")[1];
else
remarkStr = "";
strLine = allLine.split(";")[0];
Pattern p;
Matcher m;
p = Pattern.compile("\\[\\s*.*\\s*\\]");
m = p.matcher((strLine));
if (m.matches()) {
p = Pattern.compile("\\[\\s*" + section + "\\s*\\]");
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;
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;
}
/**
* 程序测试
*/
public static void main(String[] args) {
//String value = Config.getProfileString("sysconfig.ini", "Option", "OracleDB", "default");
//System.out.println(value);
try {
System.out.println(ConfigurationFile.setProfileString("d:/1.ini", "Settings", "SampSize", "111"));
} catch (IOException e) {
System.out.println(e.toString());
}

}
}

本文来自CSDN博客，转载请标明出处：http://blog.csdn.net/youyue/archive/2004/09/09/99511.aspx

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