Java生成带注释properties属性文件

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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 ':': // 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'};  }

调用测试：

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);    }}

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