如何使用@Aspect 实现AOP动态代理 --- AOP实战(二)
2021/8/2 12:05:42
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文章目录
- 简洁业务代码(推荐)
- 详细业务代码
@Aspect
则开启动态代理,结合 @Before(“xxx切入点方法”),@After(“xxx切入点方法”)等注解使用@Order(xx)
是配置类的执行顺序,xx越小越先执行@Pointcut("xx")
是切入点的路径位置
简洁业务代码(推荐)
- 这里注入的
XkHttpSecurity
请转至@ConfigurationProperties用法 了解
@Slf4j @Aspect @Order(669) @Component public class DataIsolationAop { @Autowired private XkHttpSecurity xkHttpSecurity; @Pointcut("execution(* com.tzh.practice..*Controller.*(..))") public void pointToCut() { } @Before("pointToCut()") public void before(JoinPoint joinPoint) { HttpServletRequest request = ((ServletRequestAttributes) RequestContextHolder.getRequestAttributes()).getRequest(); // 获取接口名 判断是否是需要数据隔离的接口 String servletPath = request.getServletPath(); boolean dataIsolation = xkHttpSecurity.isDataIsolation(servletPath); // 若是需要业务操作的接口 则将数据 放进传参内 if (dataIsolation) { // 校验情况 Object[] args = joinPoint.getArgs();//获取接口参数 if (args == null || args.length == 0) { return; } // 根据不同身份(学生,学校,教育局,家长) 获取所需数据 List<String> schoolIdList = new ArrayList<>(); List<String> educationIdList = new ArrayList<>() //------------------------------------------- 执行相关业务代码 给予属性赋值(此处不演示) //------------------------------------------- /** * 把所需数据 放进请求参数 */ for (Object arg : args) { if (arg instanceof PortalBasePageRequest) {//判断传参的类型,给予属性赋值 PortalBasePageRequest req = (PortalBasePageRequest) arg; req.setEducationIdList(educationIdList); req.setSchoolIdList(schoolIdList); } else if (arg instanceof PortalBaseRequest) { PortalBaseRequest req = (PortalBaseRequest) arg; req.setEducationIdList(educationIdList); req.setSchoolIdList(schoolIdList); } } } } }
详细业务代码
- 该演示是做
数据隔离
的业务,在需要做数据隔离的接口中(将这些接口名放在yml下配置即可,具体操作请看获取配置文件中所有接口名),获取当前用户判断不同身份,给予不同的属性值进参数内即可, 之后即可在这些接口后续的业务逻辑中拿这些属性值做业务隔离
@Slf4j @Aspect @Order(669) @Component public class DataIsolationAop { @Autowired private XkHttpSecurity xkHttpSecurity; @Autowired private AuthUserClient authUserClient; @Autowired private BaseSchoolClient baseSchoolClient; @Autowired private BaseStudentClient baseStudentClient; @Autowired private AuthUserFamilyClient familyClient; @Pointcut("execution(* com.tzh.practice..*Controller.*(..))") public void pointToCut() { } @Before("pointToCut()") public void before(JoinPoint joinPoint) { HttpServletRequest request = ((ServletRequestAttributes) RequestContextHolder.getRequestAttributes()).getRequest(); // 获取接口名 判断是否是需要数据隔离的接口 String servletPath = request.getServletPath(); boolean dataIsolation = xkHttpSecurity.isDataIsolation(servletPath); // 若是需要数据隔离的接口 则将数据 放进传参内 if (dataIsolation) { // 校验情况 R<UserLoginResp> r = authUserClient.getBaseUser(new TokenReq(getToken(request))); Object[] args = joinPoint.getArgs(); if (args == null || args.length == 0) { return; } UserLoginResp user = r.getEntity(); if (Objects.isNull(user)){ return; } // 根据不同身份(学生,学校,教育局,家长) 获取所需数据 List<String> schoolIdList = new ArrayList<>(); List<String> educationIdList = new ArrayList<>(); if (user.getIdentity().equals(9)){//学校身份 schoolIdList.add(user.getBaseId()); R<BaseSchoolDetailResp> schR = baseSchoolClient.getBaseSchoolById(new IdReq(user.getBaseId())); BaseSchoolDetailResp sch = schR.getEntity(); educationIdList.add(sch.getBaseEducationId()); }else if (user.getIdentity().equals(6)){//教育局身份 R<List<String>> schIdListR = baseSchoolClient.getSchoolIdListByEduId(new IdReq(user.getBaseId())); if (Objects.nonNull(schIdListR.getEntity()) && schIdListR.getEntity().size() >0){ schoolIdList.addAll(schIdListR.getEntity()); } educationIdList.add(user.getBaseId()); }else if (user.getIdentity().equals(0)){//学生身份 R<String> schIdR = baseStudentClient.getSchId(new IdReq(user.getBaseId())); if (Objects.nonNull(schIdR.getEntity())){ schoolIdList.add(schIdR.getEntity()); } R<String> eduIdR = baseStudentClient.getEduId(new IdReq(user.getBaseId())); //通过学生baseId 找到对应的教育局id if (Objects.nonNull(eduIdR.getEntity())){ educationIdList.add(eduIdR.getEntity()); } }else { R<List<StuBindFamilyInfoResp>> familyBindStuInfo = familyClient.getNewFamilyBindStuInfo(new IdReq(user.getId())); if (Objects.nonNull(familyBindStuInfo.getEntity()) && familyBindStuInfo.getEntity().size()>0){//有绑定学生信息 则是家长身份 List<StuBindFamilyInfoResp> familyInfoResps = familyBindStuInfo.getEntity(); for (StuBindFamilyInfoResp resp: familyInfoResps){ R<String> eduIdR = baseStudentClient.getEduId(new IdReq(resp.getStudentBaseId())); if (Objects.nonNull(eduIdR.getEntity())){ educationIdList.add(eduIdR.getEntity()); } } } } /** * 把所需数据隔离数据 放进请求参数 */ for (Object arg : args) { if (arg instanceof PortalBasePageRequest) { PortalBasePageRequest req = (PortalBasePageRequest) arg; req.setEducationIdList(educationIdList); req.setSchoolIdList(schoolIdList); } else if (arg instanceof PortalBaseRequest) { PortalBaseRequest req = (PortalBaseRequest) arg; req.setEducationIdList(educationIdList); req.setSchoolIdList(schoolIdList); } } } } private String getToken(HttpServletRequest request) { String token = request.getHeader(RedisConstant.TOKEN); if (StringUtils.isBlank(token)) { token = request.getParameter("token"); if (StringUtils.isBlank(token)) { throw new BizException(AccountErrorEnum.NO_LOGIN); } } return token; } }
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