Textarea和Java 換行符

    /** 
    * Html轉換爲TextArea文本:編輯時拿來做轉換 
    * @author zhengxingmiao 
    * @param str 
    * @return 
    */  
    public static String Html2Text(String str) {  
    if (str == null) {  
    return "";  
    }else if (str.length() == 0) {  
    return "";  
    }  
    str = str.replaceAll("<br />", "\n");  
    str = str.replaceAll("<br />", "\r");  
    return str;  
    }  
      
    /** 
    * TextArea文本轉換爲Html:寫入數據庫時使用 
    * @author zhengxingmiao 
    * @param str 
    * @return 
    */  
    public static String Text2Html(String str) {  
    if (str == null) {  
    return "";  
    }else if (str.length() == 0) {  
    return "";  
    }  
    str = str.replaceAll("\n", "<br />");  
    str = str.replaceAll("\r", "<br />");  
    return str;  
    }