手头的项目用LOG4J做日志的输出处理，可不知怎么了，最近输出的日志内容里面居然出现了乱码——问号，而且比较郁闷的是，从另一个类的属性里面读出的中文确可以正常显示，试了各种办法，如给日志增加一项ENCODE为GBK，UTF-8，均不能解决此问题，突然想到会不会是JAVA源文件的问题了？？？

想到前此因为在MYECLIPSE里面看中文是乱码，我曾经调整过CONTENT TYPES(即window->preferences->general->content types)，更改过text的编码格式，即default encode，检查之下，果然如此，于是我把默认的JAVA SOURCES源下的GBK给删除了，然后重新编译，乱码问题解决，呵呵，放在此处，供有心之人在遇到此类问题的时候提个醒：）

                                                                       文章来自 javaeye 作者：leng_cn

/**
 *  <p>@Description:</p>
 *  <p>@Company:     上海###########公司</p>
 *  <p>@CreateDate:  2006-4-19</p>
 *     @author:      zyk
 *    @version:     1.0 
 */

public class GenerateRandomPassword {
 
 //密码生成字符
 public static String PASSWORDCHAR[]=new String[]{"0","1","2","3","4","5","6","7","8","9",
  "a","b","c","d","e","f","g","h","i","j","k","l","m","n","o","p","q","r","s","t","u","v","w","x","y","z",
  "A","B","C","D","E","F","G","H","I","J","K","L","M","N","O","P","Q","R","S","T","U","V","W","X","Y","Z"
 };
 
 //生成密码的位数
 public static int LENGTH=6;
 
 /**
  * @Function:<p> 生成密码随机数</p>
  * @param str  获取生成密码的字符
  * @param len  控制生成密码的位数
  * @return
  * @author zyk
  * @CREATEDATE 2006-4-19 
  */
 public static String getRandom(String str[],int len){
  String temp="";
  int rand;
  Random random = new Random();
  //random.setSeed(str.length);
  for(int i=0;i<len;i++){
   rand=random.nextInt(str.length);      
   temp+=str[rand];
  }
  return temp;
 }
}