java 读写 ini文件，疑惑？？？
两个程序分别用java和vc编写， java的程序负责通过从外部设备接收到数据信息后，写入 ini的文件内指定的ID，而另外vc的程序负责定时不停的读取该ini文件内ID的内容，并向外发送！
目前遇到的问题是，两程序同时成功运行一段时间后 ，ini文件的所有内容（包括配置的内容）都没有了，变成了空文件了！
不太清楚为什么会成为空文件，怎么解决？谢谢！
附写的代码：
public final class IniClient {
private static IniClient client=null;
public static IniClient getInstance()
{
if(client==null)
{
client= new IniClient();
}
return client;
}
/**
* 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;
}
}
[解决办法]
ini 文件用
Properties p=new Properties();
p.load(fileINputStream);
在用get方法获取
保存用save方法
[解决办法]
