diff --git a/core/src/main/java/com/dite/znpt/service/impl/EquipmentApprovalServiceImpl.java b/core/src/main/java/com/dite/znpt/service/impl/EquipmentApprovalServiceImpl.java
index 480734d..3ef83e0 100644
--- a/core/src/main/java/com/dite/znpt/service/impl/EquipmentApprovalServiceImpl.java
+++ b/core/src/main/java/com/dite/znpt/service/impl/EquipmentApprovalServiceImpl.java
@@ -11,7 +11,9 @@ import com.dite.znpt.domain.vo.EquipmentApprovalResp;
 import com.dite.znpt.domain.vo.EquipmentProcurementApplyReq;
 import com.dite.znpt.service.EquipmentApprovalService;
 import com.dite.znpt.service.EquipmentStatusUpdateService;
+import com.dite.znpt.util.PageUtil;
 import com.dite.znpt.websocket.SimpleWebSocketHandler;
+import com.github.pagehelper.PageInfo;
 import lombok.extern.slf4j.Slf4j;
 import org.springframework.beans.BeanUtils;
 import org.springframework.stereotype.Service;
@@ -41,10 +43,10 @@ public class EquipmentApprovalServiceImpl implements EquipmentApprovalService {
 
     @Override
     public IPage<EquipmentApprovalResp> getPendingApprovals(EquipmentApprovalListReq req) {
-        // 创建分页对象，处理null值
-        Integer pageNum = req.getPage() != null ? req.getPage() : 1;
-        Integer pageSize = req.getPageSize() != null ? req.getPageSize() : 10;
-        Page<EquipmentApprovalEntity> page = new Page<>(pageNum, pageSize);
+        log.info("开始执行待审批设备分页查询，请求参数: {}", req);
+        
+        // 使用分页插件
+        PageUtil.startPage();
         
         LambdaQueryWrapper<EquipmentApprovalEntity> wrapper = new LambdaQueryWrapper<>();
         wrapper.eq(EquipmentApprovalEntity::getApprovalStatus, "PENDING");
@@ -52,17 +54,30 @@ public class EquipmentApprovalServiceImpl implements EquipmentApprovalService {
         // 添加查询条件
         addQueryConditions(wrapper, req);
         
-        IPage<EquipmentApprovalEntity> result = equipmentApprovalMapper.selectPage(page, wrapper);
+        // 执行查询
+        List<EquipmentApprovalEntity> approvalList = equipmentApprovalMapper.selectList(wrapper);
         
-        return convertToRespPage(result);
+        // 转换为响应对象
+        List<EquipmentApprovalResp> respList = approvalList.stream()
+                .map(this::convertToResp)
+                .collect(Collectors.toList());
+        
+        // 获取分页信息
+        PageInfo<EquipmentApprovalResp> pageInfo = new PageInfo<>(respList);
+        
+        // 创建响应分页对象
+        Page<EquipmentApprovalResp> result = new Page<>(pageInfo.getPageNum(), pageInfo.getPageSize(), pageInfo.getTotal());
+        result.setRecords(respList);
+        
+        return result;
     }
 
     @Override
     public IPage<EquipmentApprovalResp> getApprovedApprovals(EquipmentApprovalListReq req) {
-        // 创建分页对象，处理null值
-        Integer pageNum = req.getPage() != null ? req.getPage() : 1;
-        Integer pageSize = req.getPageSize() != null ? req.getPageSize() : 10;
-        Page<EquipmentApprovalEntity> page = new Page<>(pageNum, pageSize);
+        log.info("开始执行已审批设备分页查询，请求参数: {}", req);
+        
+        // 使用分页插件
+        PageUtil.startPage();
         
         LambdaQueryWrapper<EquipmentApprovalEntity> wrapper = new LambdaQueryWrapper<>();
         wrapper.in(EquipmentApprovalEntity::getApprovalStatus, "APPROVED", "REJECTED");
@@ -70,9 +85,22 @@ public class EquipmentApprovalServiceImpl implements EquipmentApprovalService {
         // 添加查询条件
         addQueryConditions(wrapper, req);
         
-        IPage<EquipmentApprovalEntity> result = equipmentApprovalMapper.selectPage(page, wrapper);
+        // 执行查询
+        List<EquipmentApprovalEntity> approvalList = equipmentApprovalMapper.selectList(wrapper);
         
-        return convertToRespPage(result);
+        // 转换为响应对象
+        List<EquipmentApprovalResp> respList = approvalList.stream()
+                .map(this::convertToResp)
+                .collect(Collectors.toList());
+        
+        // 获取分页信息
+        PageInfo<EquipmentApprovalResp> pageInfo = new PageInfo<>(respList);
+        
+        // 创建响应分页对象
+        Page<EquipmentApprovalResp> result = new Page<>(pageInfo.getPageNum(), pageInfo.getPageSize(), pageInfo.getTotal());
+        result.setRecords(respList);
+        
+        return result;
     }
 
     @Override
diff --git a/core/src/main/java/com/dite/znpt/service/impl/EquipmentServiceImpl.java b/core/src/main/java/com/dite/znpt/service/impl/EquipmentServiceImpl.java
index ebaac5c..b30a5d4 100644
--- a/core/src/main/java/com/dite/znpt/service/impl/EquipmentServiceImpl.java
+++ b/core/src/main/java/com/dite/znpt/service/impl/EquipmentServiceImpl.java
@@ -16,6 +16,8 @@ import com.dite.znpt.enums.LocationStatusEnum;
 import com.dite.znpt.exception.ServiceException;
 import com.dite.znpt.mapper.EquipmentMapper;
 import com.dite.znpt.service.EquipmentService;
+import com.dite.znpt.util.PageUtil;
+import com.github.pagehelper.PageInfo;
 import lombok.extern.slf4j.Slf4j;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
@@ -38,10 +40,8 @@ public class EquipmentServiceImpl extends ServiceImpl<EquipmentMapper, Equipment
     public IPage<EquipmentResp> page(EquipmentListReq req) {
         log.info("开始执行设备分页查询，请求参数: {}", req);
         
-        // 创建分页对象，处理null值
-        Integer pageNum = req.getPage() != null ? req.getPage() : (req.getPageNum() != null ? req.getPageNum() : 1);
-        Integer pageSize = req.getPageSize() != null ? req.getPageSize() : 10;
-        Page<EquipmentEntity> page = new Page<>(pageNum, pageSize);
+        // 使用分页插件
+        PageUtil.startPage();
         
         // 构建查询条件
         LambdaQueryWrapper<EquipmentEntity> queryWrapper = new LambdaQueryWrapper<>();
@@ -117,9 +117,14 @@ public class EquipmentServiceImpl extends ServiceImpl<EquipmentMapper, Equipment
             log.info("添加物理位置查询条件: {}", req.getPhysicalLocation());
             conditionCount++;
         }
-        if (StringUtils.hasText(req.getSupplierName())) {
-            queryWrapper.like(EquipmentEntity::getSupplierName, req.getSupplierName());
-            log.info("添加供应商名称查询条件: {}", req.getSupplierName());
+        if (StringUtils.hasText(req.getUsingDepartment())) {
+            queryWrapper.like(EquipmentEntity::getUsingDepartment, req.getUsingDepartment());
+            log.info("添加使用部门查询条件: {}", req.getUsingDepartment());
+            conditionCount++;
+        }
+        if (StringUtils.hasText(req.getPurchaseOrder())) {
+            queryWrapper.like(EquipmentEntity::getPurchaseOrder, req.getPurchaseOrder());
+            log.info("添加采购订单查询条件: {}", req.getPurchaseOrder());
             conditionCount++;
         }
         if (StringUtils.hasText(req.getMaintenancePerson())) {
@@ -127,40 +132,6 @@ public class EquipmentServiceImpl extends ServiceImpl<EquipmentMapper, Equipment
             log.info("添加维护人员查询条件: {}", req.getMaintenancePerson());
             conditionCount++;
         }
-        if (StringUtils.hasText(req.getInventoryBarcode())) {
-            queryWrapper.like(EquipmentEntity::getInventoryBarcode, req.getInventoryBarcode());
-            log.info("添加库存条码查询条件: {}", req.getInventoryBarcode());
-            conditionCount++;
-        }
-        if (StringUtils.hasText(req.getAssetRemark())) {
-            queryWrapper.like(EquipmentEntity::getAssetRemark, req.getAssetRemark());
-            log.info("添加资产备注查询条件: {}", req.getAssetRemark());
-            conditionCount++;
-        }
-        
-        // 新增字段查询条件
-        if (StringUtils.hasText(req.getUsingDepartment())) {
-            queryWrapper.like(EquipmentEntity::getUsingDepartment, req.getUsingDepartment());
-            log.info("添加使用部门/人查询条件: {}", req.getUsingDepartment());
-            conditionCount++;
-        }
-        if (StringUtils.hasText(req.getInvoice())) {
-            queryWrapper.like(EquipmentEntity::getInvoice, req.getInvoice());
-            log.info("添加发票查询条件: {}", req.getInvoice());
-            conditionCount++;
-        }
-        if (StringUtils.hasText(req.getBarcode())) {
-            queryWrapper.like(EquipmentEntity::getBarcode, req.getBarcode());
-            log.info("添加条码查询条件: {}", req.getBarcode());
-            conditionCount++;
-        }
-        if (StringUtils.hasText(req.getImporter())) {
-            queryWrapper.like(EquipmentEntity::getImporter, req.getImporter());
-            log.info("添加导入人查询条件: {}", req.getImporter());
-            conditionCount++;
-        }
-        
-        // 新增采购相关字段查询条件
         if (StringUtils.hasText(req.getAccountNumber())) {
             queryWrapper.like(EquipmentEntity::getAccountNumber, req.getAccountNumber());
             log.info("添加次户号查询条件: {}", req.getAccountNumber());
@@ -270,88 +241,15 @@ public class EquipmentServiceImpl extends ServiceImpl<EquipmentMapper, Equipment
         
         log.info("总共添加了 {} 个查询条件", conditionCount);
         
-        // 排序处理
+        // 处理排序
         if (StringUtils.hasText(req.getOrderBy())) {
-            String orderBy = req.getOrderBy();
-            String orderDirection = "desc".equalsIgnoreCase(req.getOrderDirection()) ? "desc" : "asc";
-            
-            switch (orderBy.toLowerCase()) {
-                case "equipment_name":
-                    if ("desc".equals(orderDirection)) {
-                        queryWrapper.orderByDesc(EquipmentEntity::getEquipmentName);
-                    } else {
-                        queryWrapper.orderByAsc(EquipmentEntity::getEquipmentName);
-                    }
-                    break;
-                case "equipment_sn":
-                    if ("desc".equals(orderDirection)) {
-                        queryWrapper.orderByDesc(EquipmentEntity::getEquipmentSn);
-                    } else {
-                        queryWrapper.orderByAsc(EquipmentEntity::getEquipmentSn);
-                    }
-                    break;
-                case "asset_code":
-                    if ("desc".equals(orderDirection)) {
-                        queryWrapper.orderByDesc(EquipmentEntity::getAssetCode);
-                    } else {
-                        queryWrapper.orderByAsc(EquipmentEntity::getAssetCode);
-                    }
-                    break;
-                case "equipment_type":
-                    if ("desc".equals(orderDirection)) {
-                        queryWrapper.orderByDesc(EquipmentEntity::getEquipmentType);
-                    } else {
-                        queryWrapper.orderByAsc(EquipmentEntity::getEquipmentType);
-                    }
-                    break;
-                case "equipment_status":
-                    if ("desc".equals(orderDirection)) {
-                        queryWrapper.orderByDesc(EquipmentEntity::getEquipmentStatus);
-                    } else {
-                        queryWrapper.orderByAsc(EquipmentEntity::getEquipmentStatus);
-                    }
-                    break;
-                case "brand":
-                    if ("desc".equals(orderDirection)) {
-                        queryWrapper.orderByDesc(EquipmentEntity::getBrand);
-                    } else {
-                        queryWrapper.orderByAsc(EquipmentEntity::getBrand);
-                    }
-                    break;
-                case "responsible_person":
-                    if ("desc".equals(orderDirection)) {
-                        queryWrapper.orderByDesc(EquipmentEntity::getResponsiblePerson);
-                    } else {
-                        queryWrapper.orderByAsc(EquipmentEntity::getResponsiblePerson);
-                    }
-                    break;
-                case "purchase_time":
-                    if ("desc".equals(orderDirection)) {
-                        queryWrapper.orderByDesc(EquipmentEntity::getPurchaseTime);
-                    } else {
-                        queryWrapper.orderByAsc(EquipmentEntity::getPurchaseTime);
-                    }
-                    break;
-                case "purchase_price":
-                    if ("desc".equals(orderDirection)) {
-                        queryWrapper.orderByDesc(EquipmentEntity::getTotalPrice);
-                    } else {
-                        queryWrapper.orderByAsc(EquipmentEntity::getTotalPrice);
-                    }
-                    break;
-                case "update_time":
-                    if ("desc".equals(orderDirection)) {
-                        queryWrapper.orderByDesc(EquipmentEntity::getUpdateTime);
-                    } else {
-                        queryWrapper.orderByAsc(EquipmentEntity::getUpdateTime);
-                    }
-                    break;
-                default:
-                    // 默认按创建时间倒序
-                    queryWrapper.orderByDesc(EquipmentEntity::getCreateTime);
-                    break;
+            if ("asc".equalsIgnoreCase(req.getOrderDirection())) {
+                queryWrapper.orderByAsc(EquipmentEntity::getCreateTime);
+                log.info("使用升序排序: {}", req.getOrderBy());
+            } else {
+                queryWrapper.orderByDesc(EquipmentEntity::getCreateTime);
+                log.info("使用降序排序: {}", req.getOrderBy());
             }
-            log.info("添加排序条件: {} {}", orderBy, orderDirection);
         } else {
             // 默认按创建时间倒序
             queryWrapper.orderByDesc(EquipmentEntity::getCreateTime);
@@ -360,18 +258,21 @@ public class EquipmentServiceImpl extends ServiceImpl<EquipmentMapper, Equipment
         
         log.info("执行分页查询，SQL条件: {}", queryWrapper.getTargetSql());
         
-        // 执行分页查询
-        IPage<EquipmentEntity> equipmentPage = this.page(page, queryWrapper);
+        // 执行查询
+        List<EquipmentEntity> equipmentList = this.list(queryWrapper);
         
-        log.info("查询完成，总记录数: {}, 当前页记录数: {}", equipmentPage.getTotal(), equipmentPage.getRecords().size());
+        log.info("查询完成，当前页记录数: {}", equipmentList.size());
         
         // 转换为响应对象
-        List<EquipmentResp> equipmentRespList = equipmentPage.getRecords().stream()
+        List<EquipmentResp> equipmentRespList = equipmentList.stream()
                 .map(this::convertToResp)
                 .collect(Collectors.toList());
         
+        // 获取分页信息
+        PageInfo<EquipmentResp> pageInfo = new PageInfo<>(equipmentRespList);
+        
         // 创建响应分页对象
-        Page<EquipmentResp> respPage = new Page<>(equipmentPage.getCurrent(), equipmentPage.getSize(), equipmentPage.getTotal());
+        Page<EquipmentResp> respPage = new Page<>(pageInfo.getPageNum(), pageInfo.getPageSize(), pageInfo.getTotal());
         respPage.setRecords(equipmentRespList);
         
         return respPage;
@@ -597,10 +498,8 @@ public class EquipmentServiceImpl extends ServiceImpl<EquipmentMapper, Equipment
     public IPage<EquipmentResp> procurementPage(EquipmentListReq req) {
         log.info("开始执行设备采购记录分页查询，请求参数: {}", req);
         
-        // 创建分页对象，处理null值
-        Integer pageNum = req.getPage() != null ? req.getPage() : (req.getPageNum() != null ? req.getPageNum() : 1);
-        Integer pageSize = req.getPageSize() != null ? req.getPageSize() : 10;
-        Page<EquipmentEntity> page = new Page<>(pageNum, pageSize);
+        // 使用分页插件
+        PageUtil.startPage();
         
         // 构建查询条件，参考设备分页查询的逻辑
         LambdaQueryWrapper<EquipmentEntity> queryWrapper = new LambdaQueryWrapper<>();
@@ -624,14 +523,9 @@ public class EquipmentServiceImpl extends ServiceImpl<EquipmentMapper, Equipment
             log.info("添加设备状态查询条件: {}", req.getEquipmentStatus());
             conditionCount++;
         }
-        if (StringUtils.hasText(req.getEquipmentSn())) {
-            queryWrapper.like(EquipmentEntity::getEquipmentSn, req.getEquipmentSn());
-            log.info("添加设备序列号查询条件: {}", req.getEquipmentSn());
-            conditionCount++;
-        }
-        if (StringUtils.hasText(req.getAssetCode())) {
-            queryWrapper.like(EquipmentEntity::getAssetCode, req.getAssetCode());
-            log.info("添加资产编号查询条件: {}", req.getAssetCode());
+        if (StringUtils.hasText(req.getEquipmentModel())) {
+            queryWrapper.like(EquipmentEntity::getEquipmentModel, req.getEquipmentModel());
+            log.info("添加设备型号查询条件: {}", req.getEquipmentModel());
             conditionCount++;
         }
         if (StringUtils.hasText(req.getBrand())) {
@@ -639,19 +533,9 @@ public class EquipmentServiceImpl extends ServiceImpl<EquipmentMapper, Equipment
             log.info("添加品牌查询条件: {}", req.getBrand());
             conditionCount++;
         }
-        if (StringUtils.hasText(req.getLocationStatus())) {
-            queryWrapper.eq(EquipmentEntity::getLocationStatus, req.getLocationStatus());
-            log.info("添加位置状态查询条件: {}", req.getLocationStatus());
-            conditionCount++;
-        }
-        if (StringUtils.hasText(req.getHealthStatus())) {
-            queryWrapper.eq(EquipmentEntity::getHealthStatus, req.getHealthStatus());
-            log.info("添加健康状态查询条件: {}", req.getHealthStatus());
-            conditionCount++;
-        }
-        if (StringUtils.hasText(req.getResponsiblePerson())) {
-            queryWrapper.like(EquipmentEntity::getResponsiblePerson, req.getResponsiblePerson());
-            log.info("添加负责人查询条件: {}", req.getResponsiblePerson());
+        if (StringUtils.hasText(req.getSupplierName())) {
+            queryWrapper.like(EquipmentEntity::getSupplierName, req.getSupplierName());
+            log.info("添加供应商名称查询条件: {}", req.getSupplierName());
             conditionCount++;
         }
         if (StringUtils.hasText(req.getPhysicalLocation())) {
@@ -659,16 +543,24 @@ public class EquipmentServiceImpl extends ServiceImpl<EquipmentMapper, Equipment
             log.info("添加物理位置查询条件: {}", req.getPhysicalLocation());
             conditionCount++;
         }
-        
-        // 添加采购相关的搜索条件
+        if (StringUtils.hasText(req.getUsingDepartment())) {
+            queryWrapper.like(EquipmentEntity::getUsingDepartment, req.getUsingDepartment());
+            log.info("添加使用部门查询条件: {}", req.getUsingDepartment());
+            conditionCount++;
+        }
+        if (StringUtils.hasText(req.getResponsiblePerson())) {
+            queryWrapper.like(EquipmentEntity::getResponsiblePerson, req.getResponsiblePerson());
+            log.info("添加负责人查询条件: {}", req.getResponsiblePerson());
+            conditionCount++;
+        }
         if (StringUtils.hasText(req.getPurchaseOrder())) {
             queryWrapper.like(EquipmentEntity::getPurchaseOrder, req.getPurchaseOrder());
             log.info("添加采购订单查询条件: {}", req.getPurchaseOrder());
             conditionCount++;
         }
-        if (StringUtils.hasText(req.getSupplierName())) {
-            queryWrapper.like(EquipmentEntity::getSupplierName, req.getSupplierName());
-            log.info("添加供应商查询条件: {}", req.getSupplierName());
+        if (StringUtils.hasText(req.getMaintenancePerson())) {
+            queryWrapper.like(EquipmentEntity::getMaintenancePerson, req.getMaintenancePerson());
+            log.info("添加维护人员查询条件: {}", req.getMaintenancePerson());
             conditionCount++;
         }
         if (StringUtils.hasText(req.getAccountNumber())) {
@@ -691,6 +583,11 @@ public class EquipmentServiceImpl extends ServiceImpl<EquipmentMapper, Equipment
             log.info("添加总价查询条件: {}", req.getTotalPrice());
             conditionCount++;
         }
+        if (StringUtils.hasText(req.getEquipmentSn())) {
+            queryWrapper.like(EquipmentEntity::getEquipmentSn, req.getEquipmentSn());
+            log.info("添加设备序列号查询条件: {}", req.getEquipmentSn());
+            conditionCount++;
+        }
         if (StringUtils.hasText(req.getInventoryBasis())) {
             queryWrapper.like(EquipmentEntity::getInventoryBasis, req.getInventoryBasis());
             log.info("添加盘点依据查询条件: {}", req.getInventoryBasis());
@@ -713,19 +610,21 @@ public class EquipmentServiceImpl extends ServiceImpl<EquipmentMapper, Equipment
         queryWrapper.orderByDesc(EquipmentEntity::getPurchaseTime);
         
         // 执行查询
-        IPage<EquipmentEntity> result = this.page(page, queryWrapper);
+        List<EquipmentEntity> equipmentList = this.list(queryWrapper);
         
         // 转换为响应对象
-        List<EquipmentResp> records = result.getRecords().stream()
+        List<EquipmentResp> records = equipmentList.stream()
                 .map(this::convertToResp)
                 .collect(Collectors.toList());
         
-        // 创建新的分页结果
-        Page<EquipmentResp> respPage = new Page<>(result.getCurrent(), result.getSize(), result.getTotal());
-        respPage.setRecords(records);
+        // 获取分页信息
+        PageInfo<EquipmentResp> pageInfo = new PageInfo<>(records);
         
-        log.info("设备采购记录分页查询完成，总记录数: {}", result.getTotal());
-        return respPage;
+        // 创建响应分页对象
+        Page<EquipmentResp> result = new Page<>(pageInfo.getPageNum(), pageInfo.getPageSize(), pageInfo.getTotal());
+        result.setRecords(records);
+        
+        return result;
     }
 
     @Transactional(rollbackFor = Exception.class)
diff --git a/core/src/main/java/com/dite/znpt/service/impl/EquipmentUseRecordServiceImpl.java b/core/src/main/java/com/dite/znpt/service/impl/EquipmentUseRecordServiceImpl.java
index 33e7555..4df621a 100644
--- a/core/src/main/java/com/dite/znpt/service/impl/EquipmentUseRecordServiceImpl.java
+++ b/core/src/main/java/com/dite/znpt/service/impl/EquipmentUseRecordServiceImpl.java
@@ -50,8 +50,13 @@ public class EquipmentUseRecordServiceImpl extends ServiceImpl<EquipmentUseRecor
 
     @Override
     public List<EquipmentUseRecordResp> page(EquipmentUseRecordListReq req) {
+        // 使用分页插件
         PageUtil.startPage();
-        return this.list(req);
+        
+        // 执行查询
+        List<EquipmentUseRecordResp> result = this.list(req);
+        
+        return result;
     }
 
     @Override