Java生成带注释properties属性文件

import java.io.BufferedWriter;

import java.io.IOException;

import java.io.Writer;

import java.util.Date;

import java.util.Iterator;

import java.util.LinkedHashMap;

import java.util.Properties;

public class OutputOrderProperties extends Properties  {

private LinkedHashMap<String, String> commentMap = new LinkedHashMap<String,String>();

private static final long serialVersionUID = 1L;

public OutputOrderProperties()  {
super();
}

public OutputOrderProperties(Properties properties)  {
super(properties);
Iterator<Object> iterator = properties.keySet().iterator();
while(iterator.hasNext()) {
Object key = iterator.next();
this.commentMap.put((String) key, null);
}
}

public boolean addComment(String key , String comment)  {
if(this.contains(key))  {
this.commentMap.put(key, comment);
return true;
}
return false;
}

public void put(String key , String value , String comment)  {
this.commentMap.put(key, comment);
this.setProperty(key, value);
}

public void put(String key , String value)  {
this.setProperty(key, value);
}

public void orderStore(Writer writer , String comments) throws IOException {
BufferedWriter bufferedWriter = (writer instanceof BufferedWriter) ? (BufferedWriter)writer : new BufferedWriter(writer);
if (comments != null)  {
OutputOrderProperties.writeComments(bufferedWriter, comments);
}
synchronized (this)   {
Iterator<String> iterator = this.commentMap.keySet().iterator();
while(iterator.hasNext())  {
String key = iterator.next();
String value = this.getProperty(key);
String comment = this.commentMap.get(key);
key = saveConvert(key, true, false);
value = saveConvert(value, false, false);
key = saveConvert(key, true, false);
if(comment != null && ! comment.equals(""))  {
writeComments(bufferedWriter, comment);
}
bufferedWriter.write(key+"="+value);
bufferedWriter.newLine();
}
}
bufferedWriter.flush();
}

private String saveConvert(String theString,boolean escapeSpace, boolean escapeUnicode) {
int len = theString.length();
int bufLen = len * 2;
if (bufLen < 0) {
bufLen = Integer.MAX_VALUE;
}
StringBuffer outBuffer = new StringBuffer(bufLen);
for(int x=0; x<len; x++) {
char aChar = theString.charAt(x);
if ((aChar > 61) && (aChar < 127)) {
if (aChar == '\\') {
outBuffer.append('\\'); outBuffer.append('\\');
continue;
}
outBuffer.append(aChar);
continue;
}
switch(aChar) {
case ' ':
if (x == 0 || escapeSpace)
outBuffer.append('\\');
outBuffer.append(' ');
break;
case '\t':outBuffer.append('\\'); outBuffer.append('t');
break;
case '\n':outBuffer.append('\\'); outBuffer.append('n');
break;
case '\r':outBuffer.append('\\'); outBuffer.append('r');
break;
case '\f':outBuffer.append('\\'); outBuffer.append('f');
break;
case '=': // Fall through
case ':': <
4000
span class="hljs-comment">// Fall through
case '#': // Fall through
case '!':
outBuffer.append('\\'); outBuffer.append(aChar);
break;
default:
if (((aChar < 0x0020) || (aChar > 0x007e)) & escapeUnicode ) {
outBuffer.append('\\');
outBuffer.append('u');
outBuffer.append(toHex((aChar >> 12) & 0xF));
outBuffer.append(toHex((aChar >>  8) & 0xF));
outBuffer.append(toHex((aChar >>  4) & 0xF));
outBuffer.append(toHex( aChar        & 0xF));
} else {
outBuffer.append(aChar);
}
}
}
return outBuffer.toString();
}

private static void writeComments(BufferedWriter bw, String comments)throws IOException {
bw.write("#");
bw.write(comments);
bw.newLine();

}

private static char toHex(int nibble) {
return hexDigit[(nibble & 0xF)];
}

private static final char[] hexDigit = {'0','1','2','3','4','5','6','7','8','9','A','B','C','D','E','F'};

}

public class Test {

public static void main(String[] args) {
OutputOrderProperties p = new OutputOrderProperties();
FileInputStream fs = new FileInputStream("模板文件路径");
p.load(new InputStreamReader(fs, "utf-8"));
p.put("jdbc.name", dbConfig.getJdbcName(),"jdbc名称");
p.orderStore(new OutputStreamWriter(os1, "utf-8"), null);
}

}