From 734e626b73e837480310413798ace688bfdb92b7 Mon Sep 17 00:00:00 2001
From: guyue <1721849008@qq.com>
Date: 星期五, 11 七月 2025 16:10:51 +0800
Subject: [PATCH] 平台导入错误提醒,模板下拉框

---
 src/main/java/com/linghu/controller/PlatformController.java |  117 +++++++++++++++++++++++++++++++++++-----------------------
 1 files changed, 71 insertions(+), 46 deletions(-)

diff --git a/src/main/java/com/linghu/controller/PlatformController.java b/src/main/java/com/linghu/controller/PlatformController.java
index 396a0fb..395545f 100644
--- a/src/main/java/com/linghu/controller/PlatformController.java
+++ b/src/main/java/com/linghu/controller/PlatformController.java
@@ -3,11 +3,14 @@
 import com.alibaba.excel.EasyExcel;
 import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
 import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
+import com.linghu.listener.PlatformExcelListener;
+import com.linghu.listener.TypeDropdownWriteHandler;
 import com.linghu.mapper.ReferenceMapper;
 import com.linghu.model.common.ResponseResult;
 import com.linghu.model.entity.Platform;
 import com.linghu.model.entity.Reference;
 import com.linghu.model.entity.Type;
+import com.linghu.model.excel.ExcelDataWithRow;
 import com.linghu.model.excel.PlatformExcel;
 import com.linghu.model.page.CustomPage;
 import com.linghu.service.PlatformService;
@@ -15,6 +18,8 @@
 
 import io.swagger.annotations.Api;
 import io.swagger.annotations.ApiOperation;
+import lombok.extern.log4j.Log4j;
+import lombok.extern.slf4j.Slf4j;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.http.HttpHeaders;
 import org.springframework.http.MediaType;
@@ -35,7 +40,9 @@
 @RestController
 @RequestMapping("/platform")
 @Api(value = "平台相关接口", tags = "设置-平台")
+@Slf4j
 public class PlatformController {
+
 
     @Autowired
     private PlatformService platformService;
@@ -108,25 +115,39 @@
     public ResponseResult<CustomPage<Platform>> list(
             @RequestParam(required = false) Integer page,
             @RequestParam(required = false) Integer pageSize) {
+        // 构建查询条件并添加排序(按创建时间倒序)
+        LambdaQueryWrapper<Platform> queryWrapper = new LambdaQueryWrapper<>();
+        queryWrapper.orderByDesc(Platform::getCreate_time); // 新增的排序条件
+
         if (page != null && pageSize != null) {
             Page<Platform> pageInfo = new Page<>(page, pageSize);
-            Page<Platform> result = platformService.page(pageInfo);
+            Page<Platform> result = platformService.page(pageInfo, queryWrapper);
             return ResponseResult.success(new CustomPage<>(result));
         } else {
-            List<Platform> list = platformService.list();
+            List<Platform> list = platformService.list(queryWrapper);
             CustomPage<Platform> customPage = new CustomPage<>(new Page<>());
             customPage.setRecords(list);
             customPage.setTotal(list.size());
             return ResponseResult.success(customPage);
-
         }
     }
 
     @GetMapping("/download")
     @ApiOperation("下载平台模板")
     public ResponseEntity<byte[]> downloadTemplate() throws IOException {
+        // 获取所有类型名称
+        List<Type> typeList = typeService.list();
+        List<String> typeNames = typeList.stream()
+                .map(Type::getType_name)
+                .collect(Collectors.toList());
+
         ByteArrayOutputStream out = new ByteArrayOutputStream();
-        EasyExcel.write(out, PlatformExcel.class).sheet("平台模板").doWrite(new ArrayList<>());
+
+        // 注册下拉框拦截器
+        EasyExcel.write(out, PlatformExcel.class)
+                .registerWriteHandler(new TypeDropdownWriteHandler(typeNames))
+                .sheet("平台模板")
+                .doWrite(new ArrayList<>());
 
         return ResponseEntity.ok()
                 .header(HttpHeaders.CONTENT_DISPOSITION, "attachment;filename=platform_template.xlsx")
@@ -138,71 +159,75 @@
     @ApiOperation("导入平台数据")
     public ResponseResult<String> importPlatforms(@RequestParam("file") MultipartFile file) {
         try {
-            // 检查文件是否为空
             if (file.isEmpty()) {
                 return ResponseResult.error("上传文件不能为空");
             }
 
-            // 读取Excel数据
-            List<PlatformExcel> excelList = EasyExcel.read(file.getInputStream())
+            // 使用自定义监听器读取数据(包含行号)
+            PlatformExcelListener listener = new PlatformExcelListener();
+            EasyExcel.read(file.getInputStream())
                     .head(PlatformExcel.class)
                     .sheet()
-                    .doReadSync();
+                    .registerReadListener(listener)
+                    .doRead();
 
-            // 数据转换与验证
+            List<ExcelDataWithRow<PlatformExcel>> excelList = listener.getDataList();
             List<Platform> platforms = new ArrayList<>();
             List<String> errorMessages = new ArrayList<>();
 
-            for (PlatformExcel excel : excelList) {
-                // 检查必要字段
+            // 遍历数据并验证(逻辑同方案一)
+            for (ExcelDataWithRow<PlatformExcel> excelData : excelList) {
+                int rowNum = excelData.getRowNumber();
+                PlatformExcel excel = excelData.getData();
+                List<String> rowErrors = new ArrayList<>();
+                // 验证逻辑
                 if (!StringUtils.hasText(excel.getPlatform_name())) {
-                    errorMessages.add("平台名称不能为空");
-                    continue;
-                }
-                if (!StringUtils.hasText(excel.getType_name())) {
-                    errorMessages.add("平台类型不能为空");
-                    continue;
+                    rowErrors.add("平台名称不能为空");
                 }
                 if (!StringUtils.hasText(excel.getDomain())) {
-                    errorMessages.add("平台域名不能为空");
-                    continue;
+                    rowErrors.add("平台域名不能为空");
                 }
+                // ... 其他验证
+                // 查找类型(仅当类型名称不为空时检查,避免空指针)
+                Integer typeId = null;
+                if (StringUtils.hasText(excel.getType_name())) {
+                    Type typeByName = typeService.getTypeByName(excel.getType_name());
+                    if (typeByName == null) {
+                        rowErrors.add("未知的平台类型: " + excel.getType_name());
+                    }
+                    typeId = typeByName.getType_id();
 
-                // 查找类型
-                Type typeByName = typeService.getTypeByName(excel.getType_name());
-                if (typeByName == null) {
-                    errorMessages.add("未知的平台类型: " + excel.getType_name());
-                    continue;
+                }else {
+                    rowErrors.add("平台类型不能为空");
                 }
-
-                // 构建平台对象
-                Platform platform = new Platform();
-                platform.setPlatform_name(excel.getPlatform_name());
-                platform.setDomain(excel.getDomain());
-                platform.setType_id(typeByName.getType_id());
-
-                // 设置创建时间(解决之前的数据库错误)
-                platform.setCreate_time(LocalDateTime.now());
-
-                platforms.add(platform);
+                if (!rowErrors.isEmpty()) {
+                    errorMessages.add(String.format("第%d行错误: %s", rowNum, String.join(";", rowErrors)));
+                } else {
+                    // 构建Platform对象...
+                    Platform platform = new Platform();
+                    platform.setPlatform_name(excel.getPlatform_name());
+                    platform.setDomain(excel.getDomain());
+                    platform.setType_id(typeId);
+                    platform.setCreate_time(LocalDateTime.now());
+                    platforms.add(platform);
+                }
             }
 
-            // 处理错误
+            // 错误处理和导入逻辑(同方案一)
             if (!errorMessages.isEmpty()) {
-                return ResponseResult.error("数据验证失败: " + String.join("; ", errorMessages));
+                // 构建清晰的错误信息
+                StringBuilder errorMsg = new StringBuilder();
+                errorMsg.append("导入失败,共").append(errorMessages.size()).append("条数据存在错误:\n");
+                errorMessages.forEach(msg -> errorMsg.append(msg).append("\n"));
+
+                return ResponseResult.error(400, errorMsg.toString());
             }
 
-            // 批量保存
-            if (!platforms.isEmpty()) {
-                platformService.saveBatch(platforms);
-                return ResponseResult.success("成功导入" + platforms.size() + "条数据");
-            } else {
-                return ResponseResult.success();
-            }
+            // 无错误时导入...
+            return ResponseResult.success("导入成功,共" + platforms.size() + "条数据");
 
         } catch (Exception e) {
-            // 记录详细异常信息
-
+            log.error(e.getMessage());
             return ResponseResult.error("文件解析失败:" + e.getMessage());
         }
     }

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