java测试运行时间

前台

	var beginTime = $.now();
	var endTime;
	EN_WaterService.queryBillsForGrid1(areaInfo,function(viewData){
		console.log(viewData)
		p1_grid.loadJqGridLocalData(viewData);
		endTime = $.now();
		var runTime = endTime - beginTime;
		console.log("运行时间是："+ runTime);
		alert("运行时间是"+runTime);
	});

后台

long startTime = System.currentTimeMillis();//获取当前时间

运行程序代码。。。。。。。。。。。

long endTime = System.currentTimeMillis();
long runTime = endTime - startTime;
System.out.println("查询运行时间毫秒数是: "+ runTime +"ms");
System.out.println("运行时间是: "+formatDuring(runTime));

public String formatDuring(long mss) {  
	long days = mss / (1000 * 60 * 60 * 24);  
	long hours = (mss % (1000 * 60 * 60 * 24)) / (1000 * 60 * 60);  
	long minutes = (mss % (1000 * 60 * 60)) / (1000 * 60);  
	long seconds = (mss % (1000 * 60)) / 1000;  
	return days + " days " + hours + " hours " + minutes + " minutes "  
		+ seconds + " seconds ";  
}