摘要：這里使用來實現權限驗證引入依賴定義注解后臺登錄授權權限驗證的注解此注解只能修飾方法當前注解如何去保持攔截實現登錄和權限驗證登錄驗證登錄驗證驗證判斷是否進行權限驗證從切面中獲取當前方法得到了方提取出他的注解進行權限驗證權限驗證為最高

這里使用 aop 來實現權限驗證

    org.springframework.boot
    spring-boot-starter-aop

package com.lmxdawn.api.admin.annotation;

import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;

/**
 * 后臺登錄授權/權限驗證的注解
 */
//此注解只能修飾方法
@Target(ElementType.METHOD)
//當前注解如何去保持
@Retention(RetentionPolicy.RUNTIME)
public @interface AuthRuleAnnotation {
    String value();
}

package com.lmxdawn.api.admin.aspect;

import com.lmxdawn.api.admin.annotation.AuthRuleAnnotation;
import com.lmxdawn.api.admin.enums.ResultEnum;
import com.lmxdawn.api.admin.exception.JsonException;
import com.lmxdawn.api.admin.service.auth.AuthLoginService;
import com.lmxdawn.api.common.utils.JwtUtils;
import io.jsonwebtoken.Claims;
import lombok.extern.slf4j.Slf4j;
import org.aspectj.lang.JoinPoint;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Before;
import org.aspectj.lang.annotation.Pointcut;
import org.aspectj.lang.reflect.MethodSignature;
import org.springframework.stereotype.Component;
import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletRequestAttributes;

import javax.annotation.Resource;
import javax.servlet.http.HttpServletRequest;
import java.lang.reflect.Method;
import java.util.List;

/**
 * 登錄驗證 AOP
 */
@Aspect
@Component
@Slf4j
public class AuthorizeAspect {

    @Resource
    private AuthLoginService authLoginService;

    @Pointcut("@annotation(com.lmxdawn.api.admin.annotation.AuthRuleAnnotation)")
    public void adminLoginVerify() {
    }

    /**
     * 登錄驗證
     *
     * @param joinPoint
     */
    @Before("adminLoginVerify()")
    public void doAdminAuthVerify(JoinPoint joinPoint) {

        ServletRequestAttributes attributes = (ServletRequestAttributes) RequestContextHolder.getRequestAttributes();
        if (attributes == null) {
            throw new JsonException(ResultEnum.NOT_NETWORK);
        }
        HttpServletRequest request = attributes.getRequest();

        String id = request.getHeader("X-Adminid");

        Long adminId = Long.valueOf(id);

        String token = request.getHeader("X-Token");
        if (token == null) {
            throw new JsonException(ResultEnum.LOGIN_VERIFY_FALL);
        }

        // 驗證 token
        Claims claims = JwtUtils.parse(token);
        if (claims == null) {
            throw new JsonException(ResultEnum.LOGIN_VERIFY_FALL);
        }
        Long jwtAdminId = Long.valueOf(claims.get("admin_id").toString());
        if (adminId.compareTo(jwtAdminId) != 0) {
            throw new JsonException(ResultEnum.LOGIN_VERIFY_FALL);
        }

        // 判斷是否進行權限驗證
        MethodSignature signature = (MethodSignature) joinPoint.getSignature();
        //從切面中獲取當前方法
        Method method = signature.getMethod();
        //得到了方,提取出他的注解
        AuthRuleAnnotation action = method.getAnnotation(AuthRuleAnnotation.class);
        // 進行權限驗證
        authRuleVerify(action.value(), adminId);
    }

    /**
     * 權限驗證
     *
     * @param authRule
     */
    private void authRuleVerify(String authRule, Long adminId) {

        if (authRule != null && authRule.length() > 0) {

            List authRules = authLoginService.listRuleByAdminId(adminId);
            // admin 為最高權限
            for (String item : authRules) {
                if (item.equals("admin") || item.equals(authRule)) {
                    return;
                }
            }
            throw new JsonException(ResultEnum.AUTH_FAILED);
        }

    }

}

使用 AuthRuleAnnotation 注解, value 值就是在數據庫里面定義的 權限規則名稱

/**
 * 獲取管理員列表
 */
@AuthRuleAnnotation("admin/auth/admin/index")
@GetMapping("/admin/auth/admin/index")
public ResultVO index(@Valid AuthAdminQueryForm authAdminQueryForm,
                      BindingResult bindingResult) {

    if (bindingResult.hasErrors()) {
        return ResultVOUtils.error(ResultEnum.PARAM_VERIFY_FALL, bindingResult.getFieldError().getDefaultMessage());
    }

    if (authAdminQueryForm.getRoleId() != null) {
        List authRoleAdmins = authRoleAdminService.listByRoleId(authAdminQueryForm.getRoleId());
        List ids = new ArrayList<>();
        if (authRoleAdmins != null && !authRoleAdmins.isEmpty()) {
            ids = authRoleAdmins.stream().map(AuthRoleAdmin::getAdminId).collect(Collectors.toList());
        }
        authAdminQueryForm.setIds(ids);
    }
    List authAdminList = authAdminService.listAdminPage(authAdminQueryForm);

    // 查詢所有的權限
    List adminIds = authAdminList.stream().map(AuthAdmin::getId).collect(Collectors.toList());
    List authRoleAdminList = authRoleAdminService.listByAdminIdIn(adminIds);

    // 視圖列表
    List authAdminVoList = authAdminList.stream().map(item -> {
        AuthAdminVo authAdminVo = new AuthAdminVo();
        BeanUtils.copyProperties(item, authAdminVo);
        List roles = authRoleAdminList.stream()
                .filter(authRoleAdmin -> authAdminVo.getId().equals(authRoleAdmin.getAdminId()))
                .map(AuthRoleAdmin::getRoleId)
                .collect(Collectors.toList());
        authAdminVo.setRoles(roles);
        return authAdminVo;
    }).collect(Collectors.toList());

    PageInfo authAdminPageInfo = new PageInfo<>(authAdminList);
    PageSimpleVO authAdminPageSimpleVO = new PageSimpleVO<>();
    authAdminPageSimpleVO.setTotal(authAdminPageInfo.getTotal());
    authAdminPageSimpleVO.setList(authAdminVoList);

    return ResultVOUtils.success(authAdminPageSimpleVO);

}

GitHub 地址: https://github.com/lmxdawn/vu...