spring java.lang.IllegalArgumentException：在切入点 ::0 正式未绑定时出错
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java.lang.IllegalArgumentException: error at ::0 formal unbound in pointcut
提问by rohit
Thinker.java
思想者.java
package springdemo2;
public interface Thinker {
void thinkOfSomething(String thoughts);
}
Volunteer.java
志愿者.java
package springdemo2;
public class Volunteer implements Thinker{
private String thoughts;
@Override
public void thinkOfSomething(String thoughts) {
this.thoughts=thoughts;
}
public String getThoughts(){
return thoughts;
}
}
MindReader.java
MindReader.java
package springdemo2;
public interface MindReader {
void interceptThoughts(String thoughts);
String getThoughts();
}
Magician.java
魔术师.java
package springdemo2;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Before;
import org.aspectj.lang.annotation.Pointcut;
@Aspect
public class Magician implements MindReader {
private String thoughts;
@Pointcut("execution(* springdemo2."
+ "Thinker.thinkOfSomething(String)) and args(thoughts)")
public void thinking(String thoughts){
}
@Override
@Before("thinking(thoughts)")
public void interceptThoughts(String thoughts) {
this.thoughts=thoughts;
System.out.println("Advice method intercepted Thoughts..."+thoughts);
}
@Override
public String getThoughts() {
return thoughts;
}
}
XML(Spring)
XML（春季）
I have included <aop:aspectj-autoproxy/>in my XML file.
我已包含<aop:aspectj-autoproxy/>在我的 XML 文件中。
I got following Error Message
我收到以下错误消息
java.lang.IllegalArgumentException: error at ::0 formal unbound in
pointcut
回答by Jeshurun
@Pointcut("execution(* springdemo2."
+ "Thinker.thinkOfSomething(String)) and args(thoughts)")
should be
应该
@Pointcut("execution(* springdemo2."
+ "Thinker.thinkOfSomething()) && args(thoughts)")
回答by Sllouyssgort
@Before("thinking(thoughts)")
should be
应该
@Before("thinking(String) && args(thoughts)")
回答by zui-coding
However, if the parameters of each method are not the same, how to do？
但是，如果每个方法的参数都不一样，怎么办？
I'll tell you:
我会告诉你：
Spring uses the Annotation annotation using the Joinpoint interface declaration in aopalliance.jar:org.aopalliance.intercept.Joinpoint.
Spring 使用 aopalliance.jar:org.aopalliance.intercept.Joinpoint 中的 Joinpoint 接口声明来使用 Annotation 注释。
The xml configuration is used Joinjoint.jar Join statement:org.aspectj.lang.JoinPoint.
xml配置使用Joinjoint.jar Join语句：org.aspectj.lang.JoinPoint。
So, you should use aspectj's JoinPoint in method.
所以，你应该在方法中使用aspectj的JoinPoint。
回答by user3110162
Whenever java.lang.IllegalArgumentException: error at ::0formal unbound in pointcut like problem occur then kindly check the structure of your advice, or expression of pointcut in maximum cases error will be there itself.
每当java.lang.IllegalArgumentException：error at ::0在切入点中出现正式未绑定的问题时，请检查您的建议的结构，或者在最大情况下切入点的表达本身就会出现错误。
