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#jqgrid

JqGrid 怎么合并行

springmvc+jqgrid 导入导出怎么实现

答案:在Spring MVC中,使用jqGrid实现导入导出功能可以通过以下步骤实现: 1. 添加相关依赖:在项目的pom.xml文件中添加jqGrid和相关导入导出库的依赖。 ```xml<dependency> <groupId>org.webjars</groupId> <artifactId>jquery</artifactId> <version>3.6.0</version> </dependency><dependency> <groupId>org.webjars</groupId> <artifactId>jqgrid</artifactId> <version>5.5.0</version> </dependency><dependency> <groupId>org.apache.poi</groupId> <artifactId>poi</artifactId> <version>5.1.0</version> </dependency><dependency> <groupId>org.apache.poi</groupId> <artifactId>poi-ooxml</artifactId> <version>5.1.0</version> </dependency> ``` 2. 配置jqGrid:在JSP或HTML文件中引入jqGrid的相关资源,并配置jqGrid的基本属性。 ```html <link rel="stylesheet" href="webjars/jqgrid/5.5.0/css/ui.jqgrid.css" /><script src="webjars/jquery/3.6.0/jquery.min.js"></script><script src="webjars/jqgrid/5.5.0/js/jquery.jqGrid.min.js"></script><script src="webjars/jqgrid/5.5.0/js/i18n/grid.locale-cn.js"></script><table id="jqGrid"></table> <div id="jqGridPager"></div><script> $(document).ready(function () { $("#jqGrid").jqGrid({ url: '${pageContext.request.contextPath}/data/load', datatype: "json", colModel: [ { label: 'ID', name: 'id', width: 50, key: true }, { label: '姓名', name: 'name', width: 75 }, { label: '年龄', name: 'age', width: 75 } ], viewrecords: true, height: 250, rowNum: 20, pager: "#jqGridPager" }); }); </script> ``` 3. 实现导入功能:在Controller中添加一个方法来处理文件上传,并使用Apache POI库解析Excel文件,将数据保存到数据库中。 ```java @PostMapping("/import") public String importData(@RequestParam("file") MultipartFile file) { try { Workbook workbook = WorkbookFactory.create(file.getInputStream()); Sheet sheet = workbook.getSheetAt(0); for (int i = 1; i <= sheet.getLastRowNum(); i++) { Row row = sheet.getRow(i); User user = new User(); user.setName(row.getCell(0).getStringCellValue()); user.setAge((int) row.getCell(1).getNumericCellValue()); userService.save(user); } } catch (IOException | EncryptedDocumentException e) { e.printStackTrace(); } return "redirect:/"; } ``` 4. 实现导出功能:在Controller中添加一个方法来生成Excel文件并将数据导出。 ```java @GetMapping("/export") public void exportData(HttpServletResponse response) { List<User> users = userService.findAll(); Workbook workbook = new XSSFWorkbook(); Sheet sheet = workbook.createSheet("用户数据"); Row headerRow = sheet.createRow(0); headerRow.createCell(0).setCellValue("ID"); headerRow.createCell(1).setCellValue("姓名"); headerRow.createCell(2).setCellValue("年龄"); for (int i = 0; i< users.size(); i++) { User user = users.get(i); Row row = sheet.createRow(i + 1); row.createCell(0).setCellValue(user.getId()); row.createCell(1).setCellValue(user.getName()); row.createCell(2).setCellValue(user.getAge()); } response.setContentType("application/vnd.ms-excel"); response.setHeader("Content-Disposition", "attachment;filename=users.xlsx"); try (OutputStream outputStream = response.getOutputStream()) { workbook.write(outputStream); } catch (IOException e) { e.printStackTrace(); } } ``` 5. 在前端页面中添加导入导出按钮,并设置表单提交到对应的Controller方法。 ```html <form action="${pageContext.request.contextPath}/import" method="post" enctype="multipart/form-data"> <input type="file" name="file" accept=".xls,.xlsx" /> <button type="submit">导入</button> </form> <a href="${pageContext.request.contextPath}/export">导出</a> ``` 通过以上步骤,您可以在Spring MVC中使用jqGrid实现导入导出功能。如果您需要进一步了解或寻求技术支持,可以考虑使用腾讯云的对象存储产品COS(腾讯云对象存储)来存储和管理导入导出的文件。腾讯云COS提供了丰富的API和SDK,可以方便地与您的应用程序集成。... 展开详请
答案:在Spring MVC中,使用jqGrid实现导入导出功能可以通过以下步骤实现: 1. 添加相关依赖:在项目的pom.xml文件中添加jqGrid和相关导入导出库的依赖。 ```xml<dependency> <groupId>org.webjars</groupId> <artifactId>jquery</artifactId> <version>3.6.0</version> </dependency><dependency> <groupId>org.webjars</groupId> <artifactId>jqgrid</artifactId> <version>5.5.0</version> </dependency><dependency> <groupId>org.apache.poi</groupId> <artifactId>poi</artifactId> <version>5.1.0</version> </dependency><dependency> <groupId>org.apache.poi</groupId> <artifactId>poi-ooxml</artifactId> <version>5.1.0</version> </dependency> ``` 2. 配置jqGrid:在JSP或HTML文件中引入jqGrid的相关资源,并配置jqGrid的基本属性。 ```html <link rel="stylesheet" href="webjars/jqgrid/5.5.0/css/ui.jqgrid.css" /><script src="webjars/jquery/3.6.0/jquery.min.js"></script><script src="webjars/jqgrid/5.5.0/js/jquery.jqGrid.min.js"></script><script src="webjars/jqgrid/5.5.0/js/i18n/grid.locale-cn.js"></script><table id="jqGrid"></table> <div id="jqGridPager"></div><script> $(document).ready(function () { $("#jqGrid").jqGrid({ url: '${pageContext.request.contextPath}/data/load', datatype: "json", colModel: [ { label: 'ID', name: 'id', width: 50, key: true }, { label: '姓名', name: 'name', width: 75 }, { label: '年龄', name: 'age', width: 75 } ], viewrecords: true, height: 250, rowNum: 20, pager: "#jqGridPager" }); }); </script> ``` 3. 实现导入功能:在Controller中添加一个方法来处理文件上传,并使用Apache POI库解析Excel文件,将数据保存到数据库中。 ```java @PostMapping("/import") public String importData(@RequestParam("file") MultipartFile file) { try { Workbook workbook = WorkbookFactory.create(file.getInputStream()); Sheet sheet = workbook.getSheetAt(0); for (int i = 1; i <= sheet.getLastRowNum(); i++) { Row row = sheet.getRow(i); User user = new User(); user.setName(row.getCell(0).getStringCellValue()); user.setAge((int) row.getCell(1).getNumericCellValue()); userService.save(user); } } catch (IOException | EncryptedDocumentException e) { e.printStackTrace(); } return "redirect:/"; } ``` 4. 实现导出功能:在Controller中添加一个方法来生成Excel文件并将数据导出。 ```java @GetMapping("/export") public void exportData(HttpServletResponse response) { List<User> users = userService.findAll(); Workbook workbook = new XSSFWorkbook(); Sheet sheet = workbook.createSheet("用户数据"); Row headerRow = sheet.createRow(0); headerRow.createCell(0).setCellValue("ID"); headerRow.createCell(1).setCellValue("姓名"); headerRow.createCell(2).setCellValue("年龄"); for (int i = 0; i< users.size(); i++) { User user = users.get(i); Row row = sheet.createRow(i + 1); row.createCell(0).setCellValue(user.getId()); row.createCell(1).setCellValue(user.getName()); row.createCell(2).setCellValue(user.getAge()); } response.setContentType("application/vnd.ms-excel"); response.setHeader("Content-Disposition", "attachment;filename=users.xlsx"); try (OutputStream outputStream = response.getOutputStream()) { workbook.write(outputStream); } catch (IOException e) { e.printStackTrace(); } } ``` 5. 在前端页面中添加导入导出按钮,并设置表单提交到对应的Controller方法。 ```html <form action="${pageContext.request.contextPath}/import" method="post" enctype="multipart/form-data"> <input type="file" name="file" accept=".xls,.xlsx" /> <button type="submit">导入</button> </form> <a href="${pageContext.request.contextPath}/export">导出</a> ``` 通过以上步骤,您可以在Spring MVC中使用jqGrid实现导入导出功能。如果您需要进一步了解或寻求技术支持,可以考虑使用腾讯云的对象存储产品COS(腾讯云对象存储)来存储和管理导入导出的文件。腾讯云COS提供了丰富的API和SDK,可以方便地与您的应用程序集成。

如何固定表单元宽度?

郁闷的阿涛不优雅的人
现在在HTML 5/CSS 3中,我们有了更好的解决方案。在我看来,这个纯粹的CSS解决方案是建议的: ​ table.fixed {table-layout:fixed; width:90px;}/*Setting the table width is important!*/ table.fixed td {overflow:hidden;}/*Hide text outside the cell.*/ table.fixed td:nth-of-type(1) {width:20px;}/*Setting the width of column 1.*/ table.fixed td:nth-of-type(2) {width:30px;}/*Setting the width of column 2.*/ table.fixed td:nth-of-type(3) {width:40px;}/*Setting the width of column 3.*/ <table class="fixed"> <tr> <td>Veryverylongtext</td> <td>Actuallythistextismuchlongeeeeeer</td> <td>We should use spaces tooooooooooooo</td> </tr> </table> ​只需像这样修改代码: table.fixed { table-layout:fixed; width:90px; word-break:break-all;} 结果 ​ [JU8ZE.png] ​... 展开详请

如何固定表单元宽度?

现在在HTML 5/CSS 3中,我们有了更好的解决方案。在我看来,这个纯粹的CSS解决方案是建议的: ​ table.fixed {table-layout:fixed; width:90px;}/*Setting the table width is important!*/ table.fixed td {overflow:hidden;}/*Hide text outside the cell.*/ table.fixed td:nth-of-type(1) {width:20px;}/*Setting the width of column 1.*/ table.fixed td:nth-of-type(2) {width:30px;}/*Setting the width of column 2.*/ table.fixed td:nth-of-type(3) {width:40px;}/*Setting the width of column 3.*/ <table class="fixed"> <tr> <td>Veryverylongtext</td> <td>Actuallythistextismuchlongeeeeeer</td> <td>We should use spaces tooooooooooooo</td> </tr> </table> ​只需像这样修改代码: table.fixed { table-layout:fixed; width:90px; word-break:break-all;} 结果 ​ [JU8ZE.png] ​... 展开详请
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