java读写ini配置文件
代码
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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=wwww@126.com ;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
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