1. 基于 db 实现文件的存储

src/main/java/cn/iocoder/dashboard/modules/system/controller/common/SysCaptchaController.java

@@ -15,7 +15,7 @@ import static cn.iocoder.dashboard.common.pojo.CommonResult.success;
 
 @Api(tags = "验证码 API")
 @RestController
-@RequestMapping("/captcha")
+@RequestMapping("/system/captcha")
 public class SysCaptchaController {
 
     @Resource

src/main/java/cn/iocoder/dashboard/modules/system/controller/common/SysFileController.java

@@ -0,0 +1,47 @@
+package cn.iocoder.dashboard.modules.system.controller.common;
+
+import cn.hutool.core.io.IoUtil;
+import cn.iocoder.dashboard.common.pojo.CommonResult;
+import cn.iocoder.dashboard.modules.system.dal.mysql.dataobject.common.SysFileDO;
+import cn.iocoder.dashboard.modules.system.service.common.SysFileService;
+import cn.iocoder.dashboard.util.servlet.ServletUtils;
+import io.swagger.annotations.Api;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.http.HttpStatus;
+import org.springframework.web.bind.annotation.*;
+import org.springframework.web.multipart.MultipartFile;
+
+import javax.annotation.Resource;
+import javax.servlet.http.HttpServletResponse;
+
+import java.io.IOException;
+
+import static cn.iocoder.dashboard.common.pojo.CommonResult.success;
+
+@Api(tags = "文件 API")
+@RestController
+@RequestMapping("/system/file")
+@Slf4j
+public class SysFileController {
+
+    @Resource
+    private SysFileService fileService;
+
+    @PostMapping("/upload")
+    public CommonResult<String> uploadFile(@RequestParam("file") MultipartFile file,
+                                           @RequestParam("path") String path) throws IOException {
+        return success(fileService.createFile(path, IoUtil.readBytes(file.getInputStream())));
+    }
+
+    @GetMapping("/get/{path}")
+    public void getFile(HttpServletResponse response, @PathVariable("path") String path) throws IOException {
+        SysFileDO file = fileService.getFile(path);
+        if (file == null) {
+            log.warn("[getFile][path({}) 文件不存在]", path);
+            response.setStatus(HttpStatus.NOT_FOUND.value());
+            return;
+        }
+        ServletUtils.writeAttachment(response, path, file.getContent());
+    }
+
+}

src/main/java/cn/iocoder/dashboard/modules/system/controller/dept/SysPostController.java

@@ -3,6 +3,7 @@ package cn.iocoder.dashboard.modules.system.controller.dept;
 import cn.iocoder.dashboard.common.enums.CommonStatusEnum;
 import cn.iocoder.dashboard.common.pojo.CommonResult;
 import cn.iocoder.dashboard.common.pojo.PageResult;
+import cn.iocoder.dashboard.framework.excel.core.util.ExcelUtils;
 import cn.iocoder.dashboard.modules.system.controller.dept.vo.post.*;
 import cn.iocoder.dashboard.modules.system.convert.dept.SysPostConvert;
 import cn.iocoder.dashboard.modules.system.dal.mysql.dataobject.dept.SysPostDO;
@@ -14,6 +15,8 @@ import org.springframework.validation.annotation.Validated;
 import org.springframework.web.bind.annotation.*;
 
 import javax.annotation.Resource;
+import javax.servlet.http.HttpServletResponse;
+import java.io.IOException;
 import java.util.Collections;
 import java.util.Comparator;
 import java.util.List;
@@ -80,12 +83,16 @@ public class SysPostController {
         return success(SysPostConvert.INSTANCE.convert(postService.getPost(id)));
     }
 
+    @GetMapping("/export")
+    @ApiOperation("岗位管理")
 //    @Log(title = "岗位管理", businessType = BusinessType.EXPORT)
 //    @PreAuthorize("@ss.hasPermi('system:post:export')")
-//    @GetMapping("/export")
-//    public AjaxResult export(SysPost post) {
-//        List<SysPost> list = postService.selectPostList(post);
-//        ExcelUtil<SysPost> util = new ExcelUtil<SysPost>(SysPost.class);
-//        return util.exportExcel(list, "岗位数据");
-//    }
+    public void export(HttpServletResponse response, @Validated SysPostExportReqVO reqVO) throws IOException {
+        List<SysPostDO> posts = postService.listPosts(reqVO);
+        List<SysPostExcelVO> excelPosts = SysPostConvert.INSTANCE.convertList03(posts);
+        // 输出
+        ExcelUtils.write(response, "岗位数据.xls", "岗位列表",
+                SysPostExcelVO.class, excelPosts);
+    }
+
 }

src/main/java/cn/iocoder/dashboard/modules/system/controller/dept/vo/post/SysPostExcelRespVO.java

@@ -1,27 +0,0 @@
-package cn.iocoder.dashboard.modules.system.controller.dept.vo.post;
-
-import cn.iocoder.dashboard.framework.excel.Excel;
-import lombok.Data;
-
-/**
- * 岗位 Excel 导出响应 VO
- */
-@Data
-public class SysPostExcelRespVO {
-
-    @Excel(name = "岗位序号", cellType = Excel.ColumnType.NUMERIC)
-    private Long id;
-
-    @Excel(name = "岗位编码")
-    private String code;
-
-    @Excel(name = "岗位名称")
-    private String name;
-
-    @Excel(name = "岗位排序")
-    private String sort;
-
-    @Excel(name = "状态", readConverterExp = "0=正常,1=停用")
-    private String status;
-
-}

src/main/java/cn/iocoder/dashboard/modules/system/controller/dept/vo/post/SysPostExcelVO.java

@@ -0,0 +1,32 @@
+package cn.iocoder.dashboard.modules.system.controller.dept.vo.post;
+
+import cn.iocoder.dashboard.framework.excel.core.annotations.DictFormat;
+import cn.iocoder.dashboard.framework.excel.core.convert.DictConvert;
+import com.alibaba.excel.annotation.ExcelProperty;
+import lombok.Data;
+
+import static cn.iocoder.dashboard.modules.system.enums.dict.DictTypeEnum.SYS_COMMON_STATUS;
+
+/**
+ * 岗位 Excel 导出响应 VO
+ */
+@Data
+public class SysPostExcelVO {
+
+    @ExcelProperty("岗位序号")
+    private Long id;
+
+    @ExcelProperty("岗位编码")
+    private String code;
+
+    @ExcelProperty("岗位名称")
+    private String name;
+
+    @ExcelProperty("岗位排序")
+    private String sort;
+
+    @ExcelProperty(value = "状态", converter = DictConvert.class)
+    @DictFormat(SYS_COMMON_STATUS)
+    private String status;
+
+}

src/main/java/cn/iocoder/dashboard/modules/system/controller/dept/vo/post/SysPostExportReqVO.java

@@ -0,0 +1,17 @@
+package cn.iocoder.dashboard.modules.system.controller.dept.vo.post;
+
+import io.swagger.annotations.ApiModel;
+import io.swagger.annotations.ApiModelProperty;
+import lombok.Data;
+
+@ApiModel(value = "岗位导出 Request VO", description = "参数和 SysPostExcelVO 是一致的")
+@Data
+public class SysPostExportReqVO {
+
+    @ApiModelProperty(value = "岗位名称", example = "芋道", notes = "模糊匹配")
+    private String name;
+
+    @ApiModelProperty(value = "展示状态", example = "1", notes = "参见 SysCommonStatusEnum 枚举类")
+    private Integer status;
+
+}