1.JDK命令行工具：windows下可以使用，linux也可以使用
https://blog.csdn.net/WinWill2012/article/details/46364923
2.Java VisualVM：在Java bin 目录下 直接打开即可
测试trace 插件
测试用例：
脚本：
/* BTrace Script Template */
import com.sun.btrace.annotations.*;
import static com.sun.btrace.BTraceUtils.*;
@BTrace
public class TracingScript {
/* put your code here */
@OnMethod(
clazz="y190225.BTreeTest",
method="add",
location=@Location(Kind.RETURN)
)
public static void func(@Self y190225.BTreeTest instance, int a, int b, @Return int result) {
println("调用堆栈：");
jstack();
println(strcat("方法参数A：",str(a)));
println(strcat("方法参数B：",str(b)));
println(strcat("方法结果：",str(result)));
}
}
Java：
public class BTreeTest {
public int add(int a, int b) {
return a + b;
}
public static void main(String[] args) throws InterruptedException {
BTreeTest bTreeTest = new BTreeTest();
//BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
for (int i = 0; i < 10; i++) {
Thread.sleep(10000);
int a = (int) Math.round(Math.random() * 1000);
int b = (int) Math.round(Math.random() * 1000);
System.out.println(bTreeTest.add(a,b));
}
}
}