代码
package org.fh.util;
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;
/**
* 说明：ini文件读写操作工具类
* 作者：FH Admin
* 官网：www.fhadmin.org
*/
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;
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;
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";
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;
}
public static void main(String[] args) {
try {
/*;文件事例
[Client]
;客户端版本号
version=0001
;设备号
devNum=6405*/
String value = IniFileUtil.readCfgValue("L:/a.ini", "Client", "devNum", "1");
System.out.println(value);
} catch (IOException e) {
e.printStackTrace();
}
}
}
ini 配置文件
;系统设置 [SysSet1] ;系统名称 sysName=FH Admin ;带分页的列表页面,每页条数 showCount=10 ;在线管理IP onlineIp=127.0.0.1 ;在线管理端口 onlinePort=8869 ;信息提示音 fhsmsSound=m1 ;邮箱服务器SMTP SMTP=smtp.126.com ;邮箱服务器端口 PORT=25 ;邮箱服务器邮箱 [email protected] ;邮箱服务器密码 PAW=234561 ;即时聊天IP imIp=127.0.0.1 ;即时聊天端口 imPort=8879