被调试程序
@RestController
@RequestMapping("/ch4")
public class Ch4Controller {
@RequestMapping("/arg2")
public User arg2(User user) {
return user;
}
}
BTrace脚本
package com.btrace.example;
import java.lang.reflect.Field;
import com.sun.btrace.BTraceUtils;
import com.sun.btrace.annotations.BTrace;
import com.sun.btrace.annotations.Kind;
import com.sun.btrace.annotations.Location;
import com.sun.btrace.annotations.OnMethod;
import com.sun.btrace.annotations.ProbeClassName;
import com.sun.btrace.annotations.ProbeMethodName;
@BTrace
public class PrintArgComplex {
@OnMethod(
clazz="com.example.demo.btrace.Ch4Controller",
method="arg2",
location=@Location(Kind.ENTRY)
)
public static void anyRead(@ProbeClassName String pcn, @ProbeMethodName String pmn, User user) {
//print all fields
BTraceUtils.printFields(user);
//print one field
Field filed2 = BTraceUtils.field("com.example.demo.User", "name");
BTraceUtils.println(BTraceUtils.get(filed2, user));
BTraceUtils.println(pcn + ", " + pmn);
BTraceUtils.println();
}
}
