使用javassist创建一个类出现了javassist.CannotCompileException这个异常

Question

1.看的尚学堂的java300集敲代码报错在网上找很久没找到答案
2.下面是代码
public class JavassistTest01 {
/**

• 测试使用javassist生成一个新的类
• @param args
• @throws CannotCompileException

• @throws NotFoundException
  */
  public static void main(String[] args) throws Exception {
  ClassPool pool=ClassPool.getDefault();
  CtClass cc=pool.makeClass("home04.Emp");

  //创建属性
  CtField f1=CtField.make("private int empno", cc);
  CtField f2=CtField.make("private String ename", cc);
  cc.addField(f1);
  cc.addField(f2);
  
  cc.writeFile("c:/MyJava");//将构造好的类写入到工作空间下
  System.out.println("生成类成功！");
  

  }

}
3.下面是报错信息
Exception in thread "main" javassist.CannotCompileException: [source error] syntax error near " int empno"
at javassist.CtField.make(CtField.java:173)
at home04.JavassistTest01.main(JavassistTest01.java:23)
Caused by: compile error: syntax error near " int empno"
at javassist.compiler.Parser.parseField(Parser.java:111)
at javassist.compiler.Parser.parseMember1(Parser.java:87)
at javassist.compiler.Javac.compile(Javac.java:98)
at javassist.CtField.make(CtField.java:168)
... 1 more

第一次提问，希望有人看到解答

Answer 1

@calvinly
谢谢,解决了,body里少了个;

CtMethod sayHello = CtNewMethod.make(CtClass.voidType, "sayHello",
                new CtClass[]{classPool.get(String.class.getName())},
                new CtClass[0],
                "{System.out.println(\"Hello World\"+$1);}",
                ctClass);
        ctClass.addMethod(sayHello);

报错信息

Exception in thread "main" javassist.CannotCompileException: [source error] ; is missing