如何在Spring AOP advise中提取变量值

Question

API中的每个REST调用都集成了身份验证方法。我一直试图通过Spring AOP实现一个认证方法，这样我就可以从endpoint中删除所有重复的代码，并且只需要一个建议就可以在控制器中查找所有的公共方法。

请检查以下我的代码，

@Aspect
public class EndpointAccessAspect {
/**
 * All the request mappings in controllers need to authenticate and validate end-point access
 */

@Before("execution(public * com.xxxx.webapi.controllers.MenuController.getCategory(HttpServletRequest)) && args(request)")
public void checkTokenAccess(HttpServletRequest request){
    String re =(String) request.getAttribute(HandlerMapping.BEST_MATCHING_PATTERN_ATTRIBUTE);
 System.out.println(" %%%%%%%%%%%%%%%%%%% checkTokenAccess %%%%%%%%%%%%%%%" + re);
}

public void checkEndPointPermission(){
    System.out.println(" $$$$$$$$$$$$$$$$$$ checkEndPointPermission &&&&&&&&&&&&&");
}

}

但是，我看到Intelij在< code > get category(http servlet request)附近给出错误

代码正在编译，当我测试功能时，我注意到它没有达到建议。有人能帮我解决这个问题吗？我从Spring文档Spring.doc中找到了这个

任何接受单个参数的连接点(只在Spring AOP中执行方法),并且在运行时传递的参数是可序列化的

这是否意味着我不能使用具有多个参数的方法？

控制器终点

@RequestMapping(value = "{menuId}/categories/{categoryId}", method = RequestMethod.GET)
    @ApiResponses(value = {
            @ApiResponse(code = 200, message = "Successful retrieval of a category requested", response = ProductGroupModel.class),
            @ApiResponse(code = 500, message = "Internal server error") })
    public ProductGroupModel getCategory(
            @ApiParam(name = "menuId", value = "Numeric value for menuId", required = true) @PathVariable(value = "menuId") final String menuId,
            @ApiParam(name = "categoryId", value = "Numeric value for categoryId", required = true) @PathVariable(value = "categoryId") final String categoryId,
            final HttpServletRequest request) {

Answer 1

以下语法解决了上述问题。基本上，我必须修改代码以处理通知中的多个参数。

@Before("execution(public * com.xxxx.webapi.controllers.MenuController.getCategory( HttpServletRequest,..)) && args(request, ..)")
public void checkTokenAccess(HttpServletRequest request){
    String re =(String) request.getAttribute(HandlerMapping.BEST_MATCHING_PATTERN_ATTRIBUTE);
 System.out.println(" %%%%%%%%%%%%%%%%%%% checkTokenAccess %%%%%%%%%%%%%%%" + re);
}