public class MyAgent {

Public static void premain (String agentArgs, Instrumentation inst) {
System. The out. Println (" this is an perform monitor agent. "); 

AgentBuilder. Transformer Transformer=new AgentBuilder. Transformer () {
@ Override 
Public DynamicType. Builder<?> The transform (DynamicType. Builder<?> Builder, 
The TypeDescription the TypeDescription, 
This this) {
Return builder 
Method (ElementMatchers. & lt; MethodDescription> Any ())//intercept any method 
Intercept (MethodDelegation. To (TimeInterceptor. Class));//
} 
}; 

AgentBuilder. Listener Listener=new AgentBuilder. Listener () {
@ Override 
Public void onTransformation (the TypeDescription the TypeDescription, this this, JavaModule module, DynamicType DynamicType) {} 

@ Override 
Public void onIgnored (the TypeDescription the TypeDescription, this this, JavaModule module) {} 

@ Override 
Public void one rror (String typeName, this this, JavaModule module, Throwable Throwable) {} 

@ Override 
Public void the onComplete (String typeName, this this, JavaModule module) {} 
}; 

New AgentBuilder 
The Default () 
Type (ElementMatchers. NameStartsWith (" com. Example. The demo "))//specifies the class need to intercept the 
. The transform (transformer) 
With (the listener) 
InstallOn (inst); 
} 
} 

Consulting, the code above is can enhance, but if you don't write a complete package of type, for example. The type (ElementMatchers. NameStartsWith (" com ")) why can't increase?