/**
* 数据过滤处理
*
* @author ruoyi
*/
@Aspect
@Component
public class DataScopeAspect
{
/**
* 全部数据权限
*/
public static final String DATA_SCOPE_ALL = "1";
/**
* 自定数据权限
*/
public static final String DATA_SCOPE_CUSTOM = "2";
/**
* 部门数据权限
*/
public static final String DATA_SCOPE_DEPT = "3";
/**
* 部门及以下数据权限
*/
public static final String DATA_SCOPE_DEPT_AND_CHILD = "4";
/**
* 仅本人数据权限
*/
public static final String DATA_SCOPE_SELF = "5";
/**
* 数据权限过滤关键字
*/
public static final String DATA_SCOPE = "dataScope";
@Before("@annotation(controllerDataScope)") // 这个controllerDataScope是一个形参
public void doBefore(JoinPoint point, DataScope controllerDataScope) throws Throwable
{
clearDataScope(point);
handleDataScope(point, controllerDataScope);
}
protected void handleDataScope(final JoinPoint joinPoint, DataScope controllerDataScope)
{
// 获取当前的用户
SysUser currentUser = ShiroUtils.getSysUser();
if (currentUser != null)
{
// 如果是超级管理员，则不过滤数据
if (!currentUser.isAdmin())
{
dataScopeFilter(joinPoint, currentUser, controllerDataScope.deptAlias(),
controllerDataScope.userAlias());
}
}
}
/**
* 数据范围过滤
*
* @param joinPoint 切点
* @param user 用户
* @param deptAlias 部门别名
* @param userAlias 用户别名
*/
public static void dataScopeFilter(JoinPoint joinPoint, SysUser user, String deptAlias, String userAlias)
{
StringBuilder sqlString = new StringBuilder();
for (SysRole role : user.getRoles()) //获取当前用户的角色
{
String dataScope = role.getDataScope(); //获取角色的数据权限
// 若这个角色的数据权限是 全部数据权限
if (DATA_SCOPE_ALL.equals(dataScope))
{
sqlString = new StringBuilder();
break;
}
//自定义数据权限
else if (DATA_SCOPE_CUSTOM.equals(dataScope))
{
sqlString.append(StringUtils.format(
" OR {}.dept_id IN ( SELECT dept_id FROM sys_role_dept WHERE role_id = {} ) ", deptAlias,
role.getRoleId()));
}
//本部门数据权限
else if (DATA_SCOPE_DEPT.equals(dataScope))
{
sqlString.append(StringUtils.format(" OR {}.dept_id = {} ", deptAlias, user.getDeptId()));
}
//本部门及以下数据权限
else if (DATA_SCOPE_DEPT_AND_CHILD.equals(dataScope))
{
sqlString.append(StringUtils.format(
" OR {}.dept_id IN ( SELECT dept_id FROM sys_dept WHERE dept_id = {} or find_in_set( {} , ancestors ) )",
deptAlias, user.getDeptId(), user.getDeptId()));
}
//仅本人数据权限
else if (DATA_SCOPE_SELF.equals(dataScope))
{
if (StringUtils.isNotBlank(userAlias))
{
sqlString.append(StringUtils.format(" OR {}.user_id = {} ", userAlias, user.getUserId()));
}
else
{
// 数据权限为仅本人且没有userAlias别名不查询任何数据
sqlString.append(" OR 1=0 ");
}
}
}
if (StringUtils.isNotBlank(sqlString.toString()))
{
Object params = joinPoint.getArgs()[0];
if (StringUtils.isNotNull(params) && params instanceof BaseEntity)
{
BaseEntity baseEntity = (BaseEntity) params;
baseEntity.getParams().put(DATA_SCOPE, " AND (" + sqlString.substring(4) + ")");
//将完成好的sql语句放在实体类 params的 dataScope属性中 这个属性是一个Map
}
}
}
/**
* 拼接权限sql前先清空params.dataScope参数防止注入
*/
private void clearDataScope(final JoinPoint joinPoint)
{
Object params = joinPoint.getArgs()[0];
if (StringUtils.isNotNull(params) && params instanceof BaseEntity)
{
BaseEntity baseEntity = (BaseEntity) params;
baseEntity.getParams().put(DATA_SCOPE, "");
}
}
}
