String inputStr = "05/01/2012 10:51:47 AM PDT";
String inputFmt = "MM/dd/yyyy hh:mm:ss a z";
SimpleDateFormat dfLong = new SimpleDateFormat(inputFmt);;
Date localModifiedDate = dfLong.parse(inputStr);
System.out.println(localModifiedDate);
给了我无法解析的日期异常