IniFileUtil.java
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package cn.csbr.app.util;
import java.io.*;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class IniFileUtil {
/**
* 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 readCfgValue(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("\\[\\w+]");//Pattern.compile("file://[//s*.*//s*//]");
m = p.matcher((strLine));
if (m.matches()) {
p = Pattern.compile("\\[" + section + "\\]");//Pattern.compile("file://[//s*" + section + "file://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 writeCfgValue(String file, String section, String variable, String value) throws IOException {
String fileContent, allLine, strLine, newLine, remarkStr = "";
String getValue = null;
BufferedReader bufferedReader = new BufferedReader(new FileReader(file));
boolean isInSection = false;
boolean canAdd = true;
fileContent = "";
try {
while ((allLine = bufferedReader.readLine()) != null) {
allLine = allLine.trim();
strLine = allLine.split(";")[0];
Pattern p;
Matcher m;
p = Pattern.compile("\\[\\w+]");
m = p.matcher((strLine));
if (m.matches()) {
p = Pattern.compile("\\[" + section + "\\]");
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;
fileContent += newLine;
while ((allLine = bufferedReader.readLine()) != null) {
fileContent += "\r\n" + allLine;
}
bufferedReader.close();
canAdd = false;
System.out.println(fileContent);
BufferedWriter bufferedWriter = new BufferedWriter(new FileWriter(file, false));
bufferedWriter.write(fileContent);
bufferedWriter.flush();
bufferedWriter.close();
return true;
}
}
fileContent += allLine + "\r\n";
}
if (canAdd) {
String str = variable + "=" + value;
fileContent += str + "\r\n";
System.out.println(fileContent);
BufferedWriter bufferedWriter = new BufferedWriter(new FileWriter(file, false));
bufferedWriter.write(fileContent);
bufferedWriter.flush();
bufferedWriter.close();
}
} catch (IOException ex) {
throw ex;
} finally {
bufferedReader.close();
}
return false;
}
}