Question

file applicationContext.xml

<bean id="employee" class="com.my.Employee">
</bean>
<bean id="observer" class="com.my.Observer" />

Employee.java

public Employee() {
    System.out.println("Employee constructor executed");
}

private String name;
private String company;

public void setName(String name) {
    this.name = name;
}

public String getName() {
    return name;
}

public String getCompany() {
    return company;
}

public void setCompany(String company) {
    this.company = company;
}

Observer.java

@Before("execution(* com.my.*.get*()) ")
    public void beforeAdvice(JoinPoint jp) {
    Employee emp = (Employee) jp.getTarget();
    if("admin".equals(emp.getName())){
        // access method get*()
        }
    else {
        // can't access method get*()
    }
}

AOPTest.java

public static void main(String[] args) {
    ApplicationContext context = new ClassPathXmlApplicationContext(
            "applicationContext.xml");
    Employee employee = (Employee) context.getBean("employee");
    employee.setName("admin");
    employee.setCompany("IBM");
    System.out.println("1 = "+employee.getName());
    System.out.println("2 = " + employee.getCompany());
}

如果我改变

employee.setName("user");

//无法访问方法get *（）。但方法getName（）和getCompany（）仍在运行。     我怎么能控制这个。如果setName（“user”）＆gt;＆gt;＆gt;无法访问方法getName和getCompany（）。     帮我！ PLZ

Answer 1

如何在Exception中投放beforeAdvice？

else {
   throw new NotAuthorizedException("Can not access to method get");
}

Spring AOP @Before in service - 在建议之前检查安全性

1 个答案: