线程本地变量类
package king; import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import java.util.TreeMap; /**
* TLTimeContainer为ThreadLocalTimeContainer(线程本地变量时间容器)的缩写
* 说明：用来在任意一个方法内部置入recordTime(),以作片断时间点的记录
* @author King
* @time 2015/10/29
*/
public class TLTimeContainer {
public static ThreadLocal<Map<String,List<Long>>> tl = new ThreadLocal<Map<String,List<Long>>>(); /**
* 记录调用本方法的 类的方法 起,止时间
*/
public static void recordTime() {
String clazz = Thread.currentThread().getStackTrace()[2].getClassName();
String method = Thread.currentThread().getStackTrace()[2].getMethodName();
Long l = System.currentTimeMillis();
if (tl.get() == null) {
Map<String,List<Long>> outerMap = new TreeMap<String,List<Long>>();
List<Long> list1 = new ArrayList<Long>();
list1.add(System.currentTimeMillis());
outerMap.put("类"+clazz+"->"+"方法"+method+" ", list1);
tl.set(outerMap);
} else {
Map<String,List<Long>> outerMap= tl.get();
if(outerMap != null){
List<Long> list2 = null;
list2 = outerMap.get("类"+clazz+"->"+"方法"+method+" ");
if(list2 != null){
list2.add(System.currentTimeMillis());
}else{
list2 = new ArrayList<Long>();
list2.add(System.currentTimeMillis());
outerMap.put("类"+clazz+"->"+"方法"+method+" ", list2);
}
}
}
} /**
* 打印放入本容器中的 类的方法的起,止时间和耗时
*/
public static void print(){
Map<String,List<Long>> outerMap= tl.get();
if (outerMap != null) {
for (Entry<String, List<Long>> entry : outerMap.entrySet()) {
// System.out.println("key= " + entry.getKey() + " and value= " + entry.getValue());
List<Long> list = entry.getValue();
Long start = list.get(0);
if(list.size() == 2){
Long end = list.get(1);
System.out.println(entry.getKey()+"起于:"+start);
System.out.println(entry.getKey()+"止于:"+end);
System.out.println(entry.getKey()+"耗时:"+(end-start));
}else{
System.out.println(entry.getKey()+"起于:"+start);
}
System.out.println("__________________________________________");
}
}
clearAll();
} /**
* 清除所有
*/
public static void clearAll(){
tl.remove();
} /**
* 清除单个对象
*/
public static void remove(Map map) {
if (tl.get() != null) {
tl.get().remove(map);
}
}
}
入口类
package king;
public class Entrance {
public static void main(String[] args) throws Exception{
method1();
method2();
TLTimeContainer.print();
TLTimeContainer.clearAll();
}
public static void method1() throws Exception {
TLTimeContainer.recordTime();// 方法入口调用
Thread.sleep(1000);
TLTimeContainer.recordTime();// 方法出口调用
}
public static void method2() throws Exception {
TLTimeContainer.recordTime();// 方法入口调用
Thread.sleep(2000);
TLTimeContainer.recordTime();// 方法出口调用
}
}
运行后打印结果:
类compare.Other->方法m1 起于:1446088276528
类compare.Other->方法m1 止于:1446088277528
类compare.Other->方法m1 耗时:1000
__________________________________________
类compare.Other->方法m2 起于:1446088277528
类compare.Other->方法m2 止于:1446088279529
类compare.Other->方法m2 耗时:2001
__________________________________________
源码下载: http://pan.baidu.com/s/1jGlOdvw
打我击当前方法的类名和方法名
public void printClassMethod(){
StackTraceElement[] stackTraceElements = Thread.currentThread().getStackTrace();
String clazz = stackTraceElements[2].getClassName();
String method = stackTraceElements[2].getMethodName();
System.err.println("类"+clazz+"->"+"方法"+method+ "_____________" + assetCheckCode);
}
然后在其它方法中 调用本方法即可 , 至于数组下标 [x] 中的x是多少,要看当前方法被调用的层级,断点看一下, 再决定下标[]好了