Spring AOP setAdvice 仅针对一种特定方法

Question

我有以下课程：

package x.y.z;

public class MyClass{
public void someMethod(SomeObject object){
//do somethinng
}

public void {
//do somethinng
}

}

现在我想仅在方法 someMethod(SomeObject object, int param1) 上设置 @PointCut

我该怎么做？

更新我正在尝试

@Pointcut("execution(x.y.z.MyClass.someMethod(x.y.z.SomeObject))") but I'm getting not well formed pointcut exception.

Answer 1

切点应该是：

target(x.y.z.MyClass) && execution(<RETURN TYPE> someMethod(x.y.z.SomeObject))

Answer 2

将 AspectJ 附加到您的类路径并使用 maven AOP 插件将此 Aspect 编译为字节码，请看这个示例：

@Aspect
public class IOControlAspect {
    @Around("execution(com...SomeClass.someMethod(*))")
    public Object ioControlWrapper(ProceedingJoinPoint thisJoinPoint) throws Throwable {
        {your code here}
        return thisJoinPoint.proceed();
    }
}

Answer 3

假设我们有一个 @Controller 类：

package co.gg.controller;

@Controller
public class LoginController {

    @GetMapping(value="/getTenantRoles")
    @ResponseBody
    public String getTenantRoles(@RequestParam("tenant_id") String tenant_id) throws SQLException {

        sqlConnection = con.makeconnection(dbName, dbPort, dbUserName, dbPass, dbHost);

        String sql = "select * from tenant_role where tenant_id = "+tenant_id+" and is_active = 1 and is_deleted = 0;";
        PreparedStatement preparedStatement = sqlConnection.prepareStatement(sql);
        ResultSet rs = preparedStatement.executeQuery();

        ArrayList<TenantRoleModel> tenantRoleModelList = new ArrayList<>();
        while(rs.next()) {
            TenantRoleModel currentModel = new TenantRoleModel(
                                                                    rs.getInt("tenant_role_id"),
                                                                    rs.getInt("is_deleted"),
                                                                    rs.getInt("is_active"),
                                                                    rs.getInt("tenant_id"),
                                                                    rs.getString("role_name"),
                                                                    rs.getString("create_date")
                                                                );

            tenantRoleModelList.add(currentModel);
        }

        return new Gson().toJson(tenantRoleModelList);
    }
}

然后我们必须像这样拦截该方法：

package co.gg.AOP;


@Aspect
@Component
@EnableAspectJAutoProxy(proxyTargetClass=true)
public class Aspects {

    @AfterReturning(value = "execution(* co.fdbk.controller.LoginController.getTenantRoles(..))", returning = "result")
    public void afterAPICall(JoinPoint joinPoint,Object result){

        System.out.println("AOP Method Name :"+ joinPoint.getSignature().getName());
        System.out.println("AOP Return Value  :"+ result);


    }
}

这就是我们拦截特定方法的方式。