用js将long型数据转换成date型或datetime型的实例

function dateFormat_1(longTypeDate){ 
  var dateType = ""; 
  var date = new Date(); 
  date.setTime(longTypeDate); 
  dateType += date.getFullYear();  //年 
  dateType += "-" + getMonth(date); //月  
  dateType += "-" + getDay(date);  //日 
  return dateType;
} 
//返回 01-12 的月份值  
function getMonth(date){ 
  var month = ""; 
  month = date.getMonth() + 1; //getMonth()得到的月份是0-11 
  if(month<10){ 
    month = "0" + month; 
  } 
  return month; 
} 
//返回01-30的日期 
function getDay(date){ 
  var day = ""; 
  day = date.getDate(); 
  if(day<10){ 
    day = "0" + day; 
  } 
  return day; 
}

function dateFormat_2(longTypeDate){ 
  var dateType = ""; 
  var date = new Date(); 
  date.setTime(longTypeDate); 
  dateType = date.getFullYear()+"-"+getMonth(date)+"-"+getDay(date);//yyyy-MM-dd格式日期
  return dateType;
} 

function datetimeFormat_1(longTypeDate){ 
  var datetimeType = ""; 
  var date = new Date(); 
  date.setTime(longTypeDate); 
  datetimeType+= date.getFullYear();  //年 
  datetimeType+= "-" + getMonth(date); //月  
  datetimeType += "-" + getDay(date);  //日 
  datetimeType+= "  " + getHours(date);  //时 
  datetimeType+= ":" + getMinutes(date);   //分
  datetimeType+= ":" + getSeconds(date);   //分
  return datetimeType;
} 
//返回 01-12 的月份值  
function getMonth(date){ 
  var month = ""; 
  month = date.getMonth() + 1; //getMonth()得到的月份是0-11 
  if(month<10){ 
    month = "0" + month; 
  } 
  return month; 
} 
//返回01-30的日期 
function getDay(date){ 
  var day = ""; 
  day = date.getDate(); 
  if(day<10){ 
    day = "0" + day; 
  } 
  return day; 
}
//返回小时
function getHours(date){
  var hours = "";
  hours = date.getHours();
  if(hours<10){ 
    hours = "0" + hours; 
  } 
  return hours; 
}
//返回分
function getMinutes(date){
  var minute = "";
  minute = date.getMinutes();
  if(minute<10){ 
    minute = "0" + minute; 
  } 
  return minute; 
}
//返回秒
function getSeconds(date){
  var second = "";
  second = date.getSeconds();
  if(second<10){ 
    second = "0" + second; 
  } 
  return second; 
}

function datetimeFormat_2(longTypeDate){ 
  var datetimeType = ""; 
  var date = new Date(); 
  date.setTime(longTypeDate);
  datetimeType = date.getFullYear()+"-"+getMonth(date)+"-"+getDay(date)+" "+getHours(date)+":"+getMinutes(date)+":"+getSeconds(date);//yyyy-MM-dd 00:00:00格式日期
  return datetimeType;
}