diff --git a/casic-metering-api/src/main/java/com/casic/missiles/controller/system/download/DownloadCenterController.java b/casic-metering-api/src/main/java/com/casic/missiles/controller/system/download/DownloadCenterController.java
new file mode 100644
index 0000000..40a1867
--- /dev/null
+++ b/casic-metering-api/src/main/java/com/casic/missiles/controller/system/download/DownloadCenterController.java
@@ -0,0 +1,124 @@
+package com.casic.missiles.controller.system.download;
+
+import cn.hutool.core.lang.Assert;
+import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
+import com.casic.missiles.core.base.controller.BaseController;
+import com.casic.missiles.core.base.controller.ExportController;
+import com.casic.missiles.core.page.PageFactory;
+import com.casic.missiles.core.page.PageInfoBT;
+import com.casic.missiles.dto.IdDTO;
+import com.casic.missiles.dto.ReturnDTO;
+import com.casic.missiles.dto.ReturnUtil;
+import com.casic.missiles.dto.system.DownloadFileRequest;
+import com.casic.missiles.dto.system.DownloadListRequest;
+import com.casic.missiles.dto.system.DownloadListResponse;
+import com.casic.missiles.dto.system.SignListRequest;
+import com.casic.missiles.enums.BusinessExceptionEnum;
+import com.casic.missiles.enums.ExportEnum;
+import com.casic.missiles.exception.BusinessException;
+import com.casic.missiles.model.exception.enums.CoreExceptionEnum;
+import com.casic.missiles.model.system.DownloadCenter;
+import com.casic.missiles.model.system.SystemSign;
+import com.casic.missiles.service.system.IDownloadCenterService;
+import io.swagger.annotations.ApiOperation;
+import lombok.AllArgsConstructor;
+import org.springframework.http.ResponseEntity;
+import org.springframework.util.CollectionUtils;
+import org.springframework.validation.BindingResult;
+import org.springframework.web.bind.annotation.*;
+
+import javax.servlet.http.HttpServletResponse;
+import javax.validation.Valid;
+import java.io.IOException;
+import java.util.List;
+import java.util.Objects;
+
+/**
+ * <p>
+ *  前端控制器
+ * </p>
+ *
+ * @author cz
+ * @since 2023-04-03
+ */
+@RestController
+@RequestMapping("/download/center")
+@AllArgsConstructor
+public class DownloadCenterController  extends ExportController {
+
+    private final IDownloadCenterService  downloadCenterService;
+
+
+    @ApiOperation("下载文件分页")
+    @PostMapping("/listPage")
+    @ResponseBody
+    public ReturnDTO<PageInfoBT<DownloadListResponse>> downloadFileListPage(@RequestBody @Valid DownloadListRequest request, BindingResult bindingResult) {
+        if(bindingResult.hasErrors()){
+            throw new BusinessException(CoreExceptionEnum.REQUEST_NULL.getCode(), bindingResult.getFieldError().getDefaultMessage());
+        }
+        Page<DownloadCenter> page = PageFactory.defaultPage();
+        return ReturnUtil.success(super.packForBT(downloadCenterService.listPage(page, request)));
+    }
+
+    @ResponseBody
+    @ApiOperation("更新下载文件")
+    @PostMapping("/update")
+    public ReturnDTO updateDownloadFile(@RequestBody @Valid DownloadCenter downloadCenter, BindingResult bindingResult) {
+        if(bindingResult.hasErrors()){
+            throw new BusinessException(CoreExceptionEnum.REQUEST_NULL.getCode(), bindingResult.getFieldError().getDefaultMessage());
+        }
+        return downloadCenterService.updateDownloadFile(downloadCenter);
+    }
+
+    @ResponseBody
+    @ApiOperation("新增下载文件")
+    @PostMapping("/add")
+    public ReturnDTO addDownloadFile(@RequestBody @Valid DownloadCenter downloadCenter, BindingResult bindingResult) {
+        if(bindingResult.hasErrors()){
+            throw new BusinessException(CoreExceptionEnum.REQUEST_NULL.getCode(), bindingResult.getFieldError().getDefaultMessage());
+        }
+        return downloadCenterService.addDownloadFile(downloadCenter);
+    }
+
+    @ResponseBody
+    @ApiOperation("下载文件详情")
+    @PostMapping("/detail")
+    public ReturnDTO<DownloadCenter> downloadFileDetail(@RequestBody @Valid IdDTO idDTO) {
+        Assert.isFalse(Objects.isNull(idDTO.getId()), () -> {
+            throw new BusinessException(BusinessExceptionEnum.ID_NULL);
+        });
+        return ReturnUtil.success(downloadCenterService.downloadFileDetail(idDTO.getId()));
+    }
+
+    @ResponseBody
+    @ApiOperation("删除下载文件")
+    @PostMapping("/delete")
+    public ReturnDTO deleteDownloadFile(@RequestBody @Valid IdDTO idDTO) {
+        Assert.isFalse(Objects.isNull(idDTO.getId()), () -> {
+            throw new BusinessException(BusinessExceptionEnum.ID_NULL);
+        });
+        return downloadCenterService.deleteDownloadFile(idDTO.getId());
+    }
+
+    @ResponseBody
+    @ApiOperation("新增下载文件")
+    @PostMapping("/downloadFile")
+    public ReturnDTO<ResponseEntity>  downloadFile(@RequestBody @Valid DownloadFileRequest downloadFileRequest, BindingResult bindingResult) {
+        if(bindingResult.hasErrors()){
+            throw new BusinessException(CoreExceptionEnum.REQUEST_NULL.getCode(), bindingResult.getFieldError().getDefaultMessage());
+        }
+        return downloadCenterService.downloadFile(downloadFileRequest);
+
+    }
+
+
+    @ApiOperation("文件导出")
+    @PostMapping("/listExport")
+    @ResponseBody
+    public void export(@RequestBody @Valid DownloadListRequest request, BindingResult bindingResult, HttpServletResponse response) throws IOException {
+        if(bindingResult.hasErrors()){
+            throw new BusinessException(CoreExceptionEnum.REQUEST_NULL.getCode(), bindingResult.getFieldError().getDefaultMessage());
+        }
+        downloadCenterService.downloadFileExport(request,response);
+    }
+}

diff --git a/casic-metering-api/src/main/java/com/casic/missiles/controller/system/download/DownloadCenterController.java b/casic-metering-api/src/main/java/com/casic/missiles/controller/system/download/DownloadCenterController.java
new file mode 100644
index 0000000..40a1867
--- /dev/null
+++ b/casic-metering-api/src/main/java/com/casic/missiles/controller/system/download/DownloadCenterController.java
@@ -0,0 +1,124 @@
+package com.casic.missiles.controller.system.download;
+
+import cn.hutool.core.lang.Assert;
+import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
+import com.casic.missiles.core.base.controller.BaseController;
+import com.casic.missiles.core.base.controller.ExportController;
+import com.casic.missiles.core.page.PageFactory;
+import com.casic.missiles.core.page.PageInfoBT;
+import com.casic.missiles.dto.IdDTO;
+import com.casic.missiles.dto.ReturnDTO;
+import com.casic.missiles.dto.ReturnUtil;
+import com.casic.missiles.dto.system.DownloadFileRequest;
+import com.casic.missiles.dto.system.DownloadListRequest;
+import com.casic.missiles.dto.system.DownloadListResponse;
+import com.casic.missiles.dto.system.SignListRequest;
+import com.casic.missiles.enums.BusinessExceptionEnum;
+import com.casic.missiles.enums.ExportEnum;
+import com.casic.missiles.exception.BusinessException;
+import com.casic.missiles.model.exception.enums.CoreExceptionEnum;
+import com.casic.missiles.model.system.DownloadCenter;
+import com.casic.missiles.model.system.SystemSign;
+import com.casic.missiles.service.system.IDownloadCenterService;
+import io.swagger.annotations.ApiOperation;
+import lombok.AllArgsConstructor;
+import org.springframework.http.ResponseEntity;
+import org.springframework.util.CollectionUtils;
+import org.springframework.validation.BindingResult;
+import org.springframework.web.bind.annotation.*;
+
+import javax.servlet.http.HttpServletResponse;
+import javax.validation.Valid;
+import java.io.IOException;
+import java.util.List;
+import java.util.Objects;
+
+/**
+ * <p>
+ *  前端控制器
+ * </p>
+ *
+ * @author cz
+ * @since 2023-04-03
+ */
+@RestController
+@RequestMapping("/download/center")
+@AllArgsConstructor
+public class DownloadCenterController  extends ExportController {
+
+    private final IDownloadCenterService  downloadCenterService;
+
+
+    @ApiOperation("下载文件分页")
+    @PostMapping("/listPage")
+    @ResponseBody
+    public ReturnDTO<PageInfoBT<DownloadListResponse>> downloadFileListPage(@RequestBody @Valid DownloadListRequest request, BindingResult bindingResult) {
+        if(bindingResult.hasErrors()){
+            throw new BusinessException(CoreExceptionEnum.REQUEST_NULL.getCode(), bindingResult.getFieldError().getDefaultMessage());
+        }
+        Page<DownloadCenter> page = PageFactory.defaultPage();
+        return ReturnUtil.success(super.packForBT(downloadCenterService.listPage(page, request)));
+    }
+
+    @ResponseBody
+    @ApiOperation("更新下载文件")
+    @PostMapping("/update")
+    public ReturnDTO updateDownloadFile(@RequestBody @Valid DownloadCenter downloadCenter, BindingResult bindingResult) {
+        if(bindingResult.hasErrors()){
+            throw new BusinessException(CoreExceptionEnum.REQUEST_NULL.getCode(), bindingResult.getFieldError().getDefaultMessage());
+        }
+        return downloadCenterService.updateDownloadFile(downloadCenter);
+    }
+
+    @ResponseBody
+    @ApiOperation("新增下载文件")
+    @PostMapping("/add")
+    public ReturnDTO addDownloadFile(@RequestBody @Valid DownloadCenter downloadCenter, BindingResult bindingResult) {
+        if(bindingResult.hasErrors()){
+            throw new BusinessException(CoreExceptionEnum.REQUEST_NULL.getCode(), bindingResult.getFieldError().getDefaultMessage());
+        }
+        return downloadCenterService.addDownloadFile(downloadCenter);
+    }
+
+    @ResponseBody
+    @ApiOperation("下载文件详情")
+    @PostMapping("/detail")
+    public ReturnDTO<DownloadCenter> downloadFileDetail(@RequestBody @Valid IdDTO idDTO) {
+        Assert.isFalse(Objects.isNull(idDTO.getId()), () -> {
+            throw new BusinessException(BusinessExceptionEnum.ID_NULL);
+        });
+        return ReturnUtil.success(downloadCenterService.downloadFileDetail(idDTO.getId()));
+    }
+
+    @ResponseBody
+    @ApiOperation("删除下载文件")
+    @PostMapping("/delete")
+    public ReturnDTO deleteDownloadFile(@RequestBody @Valid IdDTO idDTO) {
+        Assert.isFalse(Objects.isNull(idDTO.getId()), () -> {
+            throw new BusinessException(BusinessExceptionEnum.ID_NULL);
+        });
+        return downloadCenterService.deleteDownloadFile(idDTO.getId());
+    }
+
+    @ResponseBody
+    @ApiOperation("新增下载文件")
+    @PostMapping("/downloadFile")
+    public ReturnDTO<ResponseEntity>  downloadFile(@RequestBody @Valid DownloadFileRequest downloadFileRequest, BindingResult bindingResult) {
+        if(bindingResult.hasErrors()){
+            throw new BusinessException(CoreExceptionEnum.REQUEST_NULL.getCode(), bindingResult.getFieldError().getDefaultMessage());
+        }
+        return downloadCenterService.downloadFile(downloadFileRequest);
+
+    }
+
+
+    @ApiOperation("文件导出")
+    @PostMapping("/listExport")
+    @ResponseBody
+    public void export(@RequestBody @Valid DownloadListRequest request, BindingResult bindingResult, HttpServletResponse response) throws IOException {
+        if(bindingResult.hasErrors()){
+            throw new BusinessException(CoreExceptionEnum.REQUEST_NULL.getCode(), bindingResult.getFieldError().getDefaultMessage());
+        }
+        downloadCenterService.downloadFileExport(request,response);
+    }
+}
diff --git a/casic-metering-dao/src/main/java/com/casic/missiles/mapper/system/DownloadCenterMapper.java b/casic-metering-dao/src/main/java/com/casic/missiles/mapper/system/DownloadCenterMapper.java
new file mode 100644
index 0000000..4a75170
--- /dev/null
+++ b/casic-metering-dao/src/main/java/com/casic/missiles/mapper/system/DownloadCenterMapper.java
@@ -0,0 +1,22 @@
+package com.casic.missiles.mapper.system;
+
+import com.baomidou.mybatisplus.core.mapper.BaseMapper;
+import com.casic.missiles.dto.system.DownloadFileRequest;
+import com.casic.missiles.model.system.DownloadCenter;
+import org.apache.ibatis.annotations.Param;
+import org.apache.ibatis.annotations.Select;
+
+/**
+ * <p>
+ *  Mapper 接口
+ * </p>
+ *
+ * @author cz
+ * @since 2023-04-03
+ */
+public interface DownloadCenterMapper extends BaseMapper<DownloadCenter> {
+
+    Long selectMaxCOrderNo();
+    String getFileNameByBusiness(@Param("request") DownloadFileRequest downloadFileRequest);
+
+}

diff --git a/casic-metering-api/src/main/java/com/casic/missiles/controller/system/download/DownloadCenterController.java b/casic-metering-api/src/main/java/com/casic/missiles/controller/system/download/DownloadCenterController.java
new file mode 100644
index 0000000..40a1867
--- /dev/null
+++ b/casic-metering-api/src/main/java/com/casic/missiles/controller/system/download/DownloadCenterController.java
@@ -0,0 +1,124 @@
+package com.casic.missiles.controller.system.download;
+
+import cn.hutool.core.lang.Assert;
+import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
+import com.casic.missiles.core.base.controller.BaseController;
+import com.casic.missiles.core.base.controller.ExportController;
+import com.casic.missiles.core.page.PageFactory;
+import com.casic.missiles.core.page.PageInfoBT;
+import com.casic.missiles.dto.IdDTO;
+import com.casic.missiles.dto.ReturnDTO;
+import com.casic.missiles.dto.ReturnUtil;
+import com.casic.missiles.dto.system.DownloadFileRequest;
+import com.casic.missiles.dto.system.DownloadListRequest;
+import com.casic.missiles.dto.system.DownloadListResponse;
+import com.casic.missiles.dto.system.SignListRequest;
+import com.casic.missiles.enums.BusinessExceptionEnum;
+import com.casic.missiles.enums.ExportEnum;
+import com.casic.missiles.exception.BusinessException;
+import com.casic.missiles.model.exception.enums.CoreExceptionEnum;
+import com.casic.missiles.model.system.DownloadCenter;
+import com.casic.missiles.model.system.SystemSign;
+import com.casic.missiles.service.system.IDownloadCenterService;
+import io.swagger.annotations.ApiOperation;
+import lombok.AllArgsConstructor;
+import org.springframework.http.ResponseEntity;
+import org.springframework.util.CollectionUtils;
+import org.springframework.validation.BindingResult;
+import org.springframework.web.bind.annotation.*;
+
+import javax.servlet.http.HttpServletResponse;
+import javax.validation.Valid;
+import java.io.IOException;
+import java.util.List;
+import java.util.Objects;
+
+/**
+ * <p>
+ *  前端控制器
+ * </p>
+ *
+ * @author cz
+ * @since 2023-04-03
+ */
+@RestController
+@RequestMapping("/download/center")
+@AllArgsConstructor
+public class DownloadCenterController  extends ExportController {
+
+    private final IDownloadCenterService  downloadCenterService;
+
+
+    @ApiOperation("下载文件分页")
+    @PostMapping("/listPage")
+    @ResponseBody
+    public ReturnDTO<PageInfoBT<DownloadListResponse>> downloadFileListPage(@RequestBody @Valid DownloadListRequest request, BindingResult bindingResult) {
+        if(bindingResult.hasErrors()){
+            throw new BusinessException(CoreExceptionEnum.REQUEST_NULL.getCode(), bindingResult.getFieldError().getDefaultMessage());
+        }
+        Page<DownloadCenter> page = PageFactory.defaultPage();
+        return ReturnUtil.success(super.packForBT(downloadCenterService.listPage(page, request)));
+    }
+
+    @ResponseBody
+    @ApiOperation("更新下载文件")
+    @PostMapping("/update")
+    public ReturnDTO updateDownloadFile(@RequestBody @Valid DownloadCenter downloadCenter, BindingResult bindingResult) {
+        if(bindingResult.hasErrors()){
+            throw new BusinessException(CoreExceptionEnum.REQUEST_NULL.getCode(), bindingResult.getFieldError().getDefaultMessage());
+        }
+        return downloadCenterService.updateDownloadFile(downloadCenter);
+    }
+
+    @ResponseBody
+    @ApiOperation("新增下载文件")
+    @PostMapping("/add")
+    public ReturnDTO addDownloadFile(@RequestBody @Valid DownloadCenter downloadCenter, BindingResult bindingResult) {
+        if(bindingResult.hasErrors()){
+            throw new BusinessException(CoreExceptionEnum.REQUEST_NULL.getCode(), bindingResult.getFieldError().getDefaultMessage());
+        }
+        return downloadCenterService.addDownloadFile(downloadCenter);
+    }
+
+    @ResponseBody
+    @ApiOperation("下载文件详情")
+    @PostMapping("/detail")
+    public ReturnDTO<DownloadCenter> downloadFileDetail(@RequestBody @Valid IdDTO idDTO) {
+        Assert.isFalse(Objects.isNull(idDTO.getId()), () -> {
+            throw new BusinessException(BusinessExceptionEnum.ID_NULL);
+        });
+        return ReturnUtil.success(downloadCenterService.downloadFileDetail(idDTO.getId()));
+    }
+
+    @ResponseBody
+    @ApiOperation("删除下载文件")
+    @PostMapping("/delete")
+    public ReturnDTO deleteDownloadFile(@RequestBody @Valid IdDTO idDTO) {
+        Assert.isFalse(Objects.isNull(idDTO.getId()), () -> {
+            throw new BusinessException(BusinessExceptionEnum.ID_NULL);
+        });
+        return downloadCenterService.deleteDownloadFile(idDTO.getId());
+    }
+
+    @ResponseBody
+    @ApiOperation("新增下载文件")
+    @PostMapping("/downloadFile")
+    public ReturnDTO<ResponseEntity>  downloadFile(@RequestBody @Valid DownloadFileRequest downloadFileRequest, BindingResult bindingResult) {
+        if(bindingResult.hasErrors()){
+            throw new BusinessException(CoreExceptionEnum.REQUEST_NULL.getCode(), bindingResult.getFieldError().getDefaultMessage());
+        }
+        return downloadCenterService.downloadFile(downloadFileRequest);
+
+    }
+
+
+    @ApiOperation("文件导出")
+    @PostMapping("/listExport")
+    @ResponseBody
+    public void export(@RequestBody @Valid DownloadListRequest request, BindingResult bindingResult, HttpServletResponse response) throws IOException {
+        if(bindingResult.hasErrors()){
+            throw new BusinessException(CoreExceptionEnum.REQUEST_NULL.getCode(), bindingResult.getFieldError().getDefaultMessage());
+        }
+        downloadCenterService.downloadFileExport(request,response);
+    }
+}
diff --git a/casic-metering-dao/src/main/java/com/casic/missiles/mapper/system/DownloadCenterMapper.java b/casic-metering-dao/src/main/java/com/casic/missiles/mapper/system/DownloadCenterMapper.java
new file mode 100644
index 0000000..4a75170
--- /dev/null
+++ b/casic-metering-dao/src/main/java/com/casic/missiles/mapper/system/DownloadCenterMapper.java
@@ -0,0 +1,22 @@
+package com.casic.missiles.mapper.system;
+
+import com.baomidou.mybatisplus.core.mapper.BaseMapper;
+import com.casic.missiles.dto.system.DownloadFileRequest;
+import com.casic.missiles.model.system.DownloadCenter;
+import org.apache.ibatis.annotations.Param;
+import org.apache.ibatis.annotations.Select;
+
+/**
+ * <p>
+ *  Mapper 接口
+ * </p>
+ *
+ * @author cz
+ * @since 2023-04-03
+ */
+public interface DownloadCenterMapper extends BaseMapper<DownloadCenter> {
+
+    Long selectMaxCOrderNo();
+    String getFileNameByBusiness(@Param("request") DownloadFileRequest downloadFileRequest);
+
+}
diff --git a/casic-metering-dao/src/main/resources/mapper/system/DownloadCenterMapper.xml b/casic-metering-dao/src/main/resources/mapper/system/DownloadCenterMapper.xml
new file mode 100644
index 0000000..1063077
--- /dev/null
+++ b/casic-metering-dao/src/main/resources/mapper/system/DownloadCenterMapper.xml
@@ -0,0 +1,46 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
+<mapper namespace="com.casic.missiles.mapper.system.DownloadCenterMapper">
+
+    <!-- 通用查询映射结果 -->
+    <resultMap id="BaseResultMap" type="com.casic.missiles.model.system.DownloadCenter">
+        <id column="id" property="id"/>
+        <result column="download_no" property="downloadNo"/>
+        <result column="business_module_name" property="moduleName"/>
+        <result column="business_download_type" property="businessDownloadType"/>
+        <result column="minio_file_name" property="minioFileName"/>
+        <result column="file_type" property="fileType"/>
+        <result column="file_name" property="fileName"/>
+        <result column="desc" property="desc"/>
+        <result column="create_user" property="createUser"/>
+        <result column="update_user" property="updateUser"/>
+        <result column="is_del" property="isDel"/>
+        <result column="create_time" property="createTime"/>
+        <result column="update_time" property="updateTime"/>
+    </resultMap>
+
+    <!-- 通用查询结果列 -->
+    <sql id="Base_Column_List">
+        id
+        , download_no, business_module_name, business_download_type, minio_file_name, file_name, desc, create_user, update_user, is_del, create_time, update_time
+    </sql>
+
+
+    <select id="selectMaxCOrderNo" resultType="java.lang.Long">
+        SELECT IFNULL(max(RIGHT (download_no, 12)), 0)
+        from system_download_center
+    </select>
+
+    <select id="getFileNameByBusiness" resultType="java.lang.String">
+        SELECT file_name
+        from  system_download_center
+        <if test="request.moduleName != null and request.moduleName !=''">
+            and module_name like concat('%',#{request.moduleName},'%')
+        </if>
+        <if test="request.businessDownloadType != null and request.businessDownloadType !=''">
+            and business_download_type = #{request.businessDownloadType }
+        </if>
+
+    </select>
+
+</mapper>

diff --git a/casic-metering-api/src/main/java/com/casic/missiles/controller/system/download/DownloadCenterController.java b/casic-metering-api/src/main/java/com/casic/missiles/controller/system/download/DownloadCenterController.java
new file mode 100644
index 0000000..40a1867
--- /dev/null
+++ b/casic-metering-api/src/main/java/com/casic/missiles/controller/system/download/DownloadCenterController.java
@@ -0,0 +1,124 @@
+package com.casic.missiles.controller.system.download;
+
+import cn.hutool.core.lang.Assert;
+import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
+import com.casic.missiles.core.base.controller.BaseController;
+import com.casic.missiles.core.base.controller.ExportController;
+import com.casic.missiles.core.page.PageFactory;
+import com.casic.missiles.core.page.PageInfoBT;
+import com.casic.missiles.dto.IdDTO;
+import com.casic.missiles.dto.ReturnDTO;
+import com.casic.missiles.dto.ReturnUtil;
+import com.casic.missiles.dto.system.DownloadFileRequest;
+import com.casic.missiles.dto.system.DownloadListRequest;
+import com.casic.missiles.dto.system.DownloadListResponse;
+import com.casic.missiles.dto.system.SignListRequest;
+import com.casic.missiles.enums.BusinessExceptionEnum;
+import com.casic.missiles.enums.ExportEnum;
+import com.casic.missiles.exception.BusinessException;
+import com.casic.missiles.model.exception.enums.CoreExceptionEnum;
+import com.casic.missiles.model.system.DownloadCenter;
+import com.casic.missiles.model.system.SystemSign;
+import com.casic.missiles.service.system.IDownloadCenterService;
+import io.swagger.annotations.ApiOperation;
+import lombok.AllArgsConstructor;
+import org.springframework.http.ResponseEntity;
+import org.springframework.util.CollectionUtils;
+import org.springframework.validation.BindingResult;
+import org.springframework.web.bind.annotation.*;
+
+import javax.servlet.http.HttpServletResponse;
+import javax.validation.Valid;
+import java.io.IOException;
+import java.util.List;
+import java.util.Objects;
+
+/**
+ * <p>
+ *  前端控制器
+ * </p>
+ *
+ * @author cz
+ * @since 2023-04-03
+ */
+@RestController
+@RequestMapping("/download/center")
+@AllArgsConstructor
+public class DownloadCenterController  extends ExportController {
+
+    private final IDownloadCenterService  downloadCenterService;
+
+
+    @ApiOperation("下载文件分页")
+    @PostMapping("/listPage")
+    @ResponseBody
+    public ReturnDTO<PageInfoBT<DownloadListResponse>> downloadFileListPage(@RequestBody @Valid DownloadListRequest request, BindingResult bindingResult) {
+        if(bindingResult.hasErrors()){
+            throw new BusinessException(CoreExceptionEnum.REQUEST_NULL.getCode(), bindingResult.getFieldError().getDefaultMessage());
+        }
+        Page<DownloadCenter> page = PageFactory.defaultPage();
+        return ReturnUtil.success(super.packForBT(downloadCenterService.listPage(page, request)));
+    }
+
+    @ResponseBody
+    @ApiOperation("更新下载文件")
+    @PostMapping("/update")
+    public ReturnDTO updateDownloadFile(@RequestBody @Valid DownloadCenter downloadCenter, BindingResult bindingResult) {
+        if(bindingResult.hasErrors()){
+            throw new BusinessException(CoreExceptionEnum.REQUEST_NULL.getCode(), bindingResult.getFieldError().getDefaultMessage());
+        }
+        return downloadCenterService.updateDownloadFile(downloadCenter);
+    }
+
+    @ResponseBody
+    @ApiOperation("新增下载文件")
+    @PostMapping("/add")
+    public ReturnDTO addDownloadFile(@RequestBody @Valid DownloadCenter downloadCenter, BindingResult bindingResult) {
+        if(bindingResult.hasErrors()){
+            throw new BusinessException(CoreExceptionEnum.REQUEST_NULL.getCode(), bindingResult.getFieldError().getDefaultMessage());
+        }
+        return downloadCenterService.addDownloadFile(downloadCenter);
+    }
+
+    @ResponseBody
+    @ApiOperation("下载文件详情")
+    @PostMapping("/detail")
+    public ReturnDTO<DownloadCenter> downloadFileDetail(@RequestBody @Valid IdDTO idDTO) {
+        Assert.isFalse(Objects.isNull(idDTO.getId()), () -> {
+            throw new BusinessException(BusinessExceptionEnum.ID_NULL);
+        });
+        return ReturnUtil.success(downloadCenterService.downloadFileDetail(idDTO.getId()));
+    }
+
+    @ResponseBody
+    @ApiOperation("删除下载文件")
+    @PostMapping("/delete")
+    public ReturnDTO deleteDownloadFile(@RequestBody @Valid IdDTO idDTO) {
+        Assert.isFalse(Objects.isNull(idDTO.getId()), () -> {
+            throw new BusinessException(BusinessExceptionEnum.ID_NULL);
+        });
+        return downloadCenterService.deleteDownloadFile(idDTO.getId());
+    }
+
+    @ResponseBody
+    @ApiOperation("新增下载文件")
+    @PostMapping("/downloadFile")
+    public ReturnDTO<ResponseEntity>  downloadFile(@RequestBody @Valid DownloadFileRequest downloadFileRequest, BindingResult bindingResult) {
+        if(bindingResult.hasErrors()){
+            throw new BusinessException(CoreExceptionEnum.REQUEST_NULL.getCode(), bindingResult.getFieldError().getDefaultMessage());
+        }
+        return downloadCenterService.downloadFile(downloadFileRequest);
+
+    }
+
+
+    @ApiOperation("文件导出")
+    @PostMapping("/listExport")
+    @ResponseBody
+    public void export(@RequestBody @Valid DownloadListRequest request, BindingResult bindingResult, HttpServletResponse response) throws IOException {
+        if(bindingResult.hasErrors()){
+            throw new BusinessException(CoreExceptionEnum.REQUEST_NULL.getCode(), bindingResult.getFieldError().getDefaultMessage());
+        }
+        downloadCenterService.downloadFileExport(request,response);
+    }
+}
diff --git a/casic-metering-dao/src/main/java/com/casic/missiles/mapper/system/DownloadCenterMapper.java b/casic-metering-dao/src/main/java/com/casic/missiles/mapper/system/DownloadCenterMapper.java
new file mode 100644
index 0000000..4a75170
--- /dev/null
+++ b/casic-metering-dao/src/main/java/com/casic/missiles/mapper/system/DownloadCenterMapper.java
@@ -0,0 +1,22 @@
+package com.casic.missiles.mapper.system;
+
+import com.baomidou.mybatisplus.core.mapper.BaseMapper;
+import com.casic.missiles.dto.system.DownloadFileRequest;
+import com.casic.missiles.model.system.DownloadCenter;
+import org.apache.ibatis.annotations.Param;
+import org.apache.ibatis.annotations.Select;
+
+/**
+ * <p>
+ *  Mapper 接口
+ * </p>
+ *
+ * @author cz
+ * @since 2023-04-03
+ */
+public interface DownloadCenterMapper extends BaseMapper<DownloadCenter> {
+
+    Long selectMaxCOrderNo();
+    String getFileNameByBusiness(@Param("request") DownloadFileRequest downloadFileRequest);
+
+}
diff --git a/casic-metering-dao/src/main/resources/mapper/system/DownloadCenterMapper.xml b/casic-metering-dao/src/main/resources/mapper/system/DownloadCenterMapper.xml
new file mode 100644
index 0000000..1063077
--- /dev/null
+++ b/casic-metering-dao/src/main/resources/mapper/system/DownloadCenterMapper.xml
@@ -0,0 +1,46 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
+<mapper namespace="com.casic.missiles.mapper.system.DownloadCenterMapper">
+
+    <!-- 通用查询映射结果 -->
+    <resultMap id="BaseResultMap" type="com.casic.missiles.model.system.DownloadCenter">
+        <id column="id" property="id"/>
+        <result column="download_no" property="downloadNo"/>
+        <result column="business_module_name" property="moduleName"/>
+        <result column="business_download_type" property="businessDownloadType"/>
+        <result column="minio_file_name" property="minioFileName"/>
+        <result column="file_type" property="fileType"/>
+        <result column="file_name" property="fileName"/>
+        <result column="desc" property="desc"/>
+        <result column="create_user" property="createUser"/>
+        <result column="update_user" property="updateUser"/>
+        <result column="is_del" property="isDel"/>
+        <result column="create_time" property="createTime"/>
+        <result column="update_time" property="updateTime"/>
+    </resultMap>
+
+    <!-- 通用查询结果列 -->
+    <sql id="Base_Column_List">
+        id
+        , download_no, business_module_name, business_download_type, minio_file_name, file_name, desc, create_user, update_user, is_del, create_time, update_time
+    </sql>
+
+
+    <select id="selectMaxCOrderNo" resultType="java.lang.Long">
+        SELECT IFNULL(max(RIGHT (download_no, 12)), 0)
+        from system_download_center
+    </select>
+
+    <select id="getFileNameByBusiness" resultType="java.lang.String">
+        SELECT file_name
+        from  system_download_center
+        <if test="request.moduleName != null and request.moduleName !=''">
+            and module_name like concat('%',#{request.moduleName},'%')
+        </if>
+        <if test="request.businessDownloadType != null and request.businessDownloadType !=''">
+            and business_download_type = #{request.businessDownloadType }
+        </if>
+
+    </select>
+
+</mapper>
diff --git a/casic-metering-model/src/main/java/com/casic/missiles/model/system/DownloadCenter.java b/casic-metering-model/src/main/java/com/casic/missiles/model/system/DownloadCenter.java
new file mode 100644
index 0000000..cb60f73
--- /dev/null
+++ b/casic-metering-model/src/main/java/com/casic/missiles/model/system/DownloadCenter.java
@@ -0,0 +1,93 @@
+package com.casic.missiles.model.system;
+
+import com.baomidou.mybatisplus.annotation.TableField;
+import com.baomidou.mybatisplus.annotation.TableId;
+import com.baomidou.mybatisplus.annotation.TableName;
+import java.io.Serializable;
+import java.time.LocalDateTime;
+
+import io.swagger.annotations.ApiModelProperty;
+import lombok.Getter;
+import lombok.Setter;
+
+import javax.validation.constraints.NotNull;
+
+/**
+ * <p>
+ * 
+ * </p>
+ *
+ * @author cz
+ * @since 2023-04-03
+ */
+@Getter
+@Setter
+@TableName("system_download_center")
+public class DownloadCenter implements Serializable {
+
+    private static final long serialVersionUID = 1L;
+
+    @TableId("id")
+    private Long id;
+
+    @ApiModelProperty("下载编号")
+    @TableField("download_no")
+    private String downloadNo;
+
+    @NotNull
+    @ApiModelProperty("业务模块名称")
+    @TableField("module_name")
+    private String moduleName;
+
+    @NotNull
+    @ApiModelProperty("业务类型(字典)")
+    @TableField("business_download_type")
+    private String businessDownloadType;
+
+    @ApiModelProperty("minio存储文件名")
+    @TableField("minio_file_name")
+    private String minioFileName;
+
+    @TableField("file_name")
+    @ApiModelProperty("文件名称")
+    private String fileName;
+
+    @ApiModelProperty("文件类型")
+    @TableField("file_type")
+    private String fileType;
+
+    @ApiModelProperty("描述备注")
+    @TableField("desc")
+    private String desc;
+
+    /**
+     * 创建人id
+     */
+    @TableField("create_user")
+    private Long createUser;
+
+    /**
+     * 更新人id
+     */
+    @TableField("update_user")
+    private Long updateUser;
+
+    /**
+     * 删除标记
+     */
+    @TableField("is_del")
+    private Boolean isDel;
+
+    /**
+     * 创建时间
+     */
+    @TableField("create_time")
+    private LocalDateTime createTime;
+
+    /**
+     * 更新时间
+     */
+    @TableField("update_time")
+    private LocalDateTime updateTime;
+
+}

diff --git a/casic-metering-api/src/main/java/com/casic/missiles/controller/system/download/DownloadCenterController.java b/casic-metering-api/src/main/java/com/casic/missiles/controller/system/download/DownloadCenterController.java
new file mode 100644
index 0000000..40a1867
--- /dev/null
+++ b/casic-metering-api/src/main/java/com/casic/missiles/controller/system/download/DownloadCenterController.java
@@ -0,0 +1,124 @@
+package com.casic.missiles.controller.system.download;
+
+import cn.hutool.core.lang.Assert;
+import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
+import com.casic.missiles.core.base.controller.BaseController;
+import com.casic.missiles.core.base.controller.ExportController;
+import com.casic.missiles.core.page.PageFactory;
+import com.casic.missiles.core.page.PageInfoBT;
+import com.casic.missiles.dto.IdDTO;
+import com.casic.missiles.dto.ReturnDTO;
+import com.casic.missiles.dto.ReturnUtil;
+import com.casic.missiles.dto.system.DownloadFileRequest;
+import com.casic.missiles.dto.system.DownloadListRequest;
+import com.casic.missiles.dto.system.DownloadListResponse;
+import com.casic.missiles.dto.system.SignListRequest;
+import com.casic.missiles.enums.BusinessExceptionEnum;
+import com.casic.missiles.enums.ExportEnum;
+import com.casic.missiles.exception.BusinessException;
+import com.casic.missiles.model.exception.enums.CoreExceptionEnum;
+import com.casic.missiles.model.system.DownloadCenter;
+import com.casic.missiles.model.system.SystemSign;
+import com.casic.missiles.service.system.IDownloadCenterService;
+import io.swagger.annotations.ApiOperation;
+import lombok.AllArgsConstructor;
+import org.springframework.http.ResponseEntity;
+import org.springframework.util.CollectionUtils;
+import org.springframework.validation.BindingResult;
+import org.springframework.web.bind.annotation.*;
+
+import javax.servlet.http.HttpServletResponse;
+import javax.validation.Valid;
+import java.io.IOException;
+import java.util.List;
+import java.util.Objects;
+
+/**
+ * <p>
+ *  前端控制器
+ * </p>
+ *
+ * @author cz
+ * @since 2023-04-03
+ */
+@RestController
+@RequestMapping("/download/center")
+@AllArgsConstructor
+public class DownloadCenterController  extends ExportController {
+
+    private final IDownloadCenterService  downloadCenterService;
+
+
+    @ApiOperation("下载文件分页")
+    @PostMapping("/listPage")
+    @ResponseBody
+    public ReturnDTO<PageInfoBT<DownloadListResponse>> downloadFileListPage(@RequestBody @Valid DownloadListRequest request, BindingResult bindingResult) {
+        if(bindingResult.hasErrors()){
+            throw new BusinessException(CoreExceptionEnum.REQUEST_NULL.getCode(), bindingResult.getFieldError().getDefaultMessage());
+        }
+        Page<DownloadCenter> page = PageFactory.defaultPage();
+        return ReturnUtil.success(super.packForBT(downloadCenterService.listPage(page, request)));
+    }
+
+    @ResponseBody
+    @ApiOperation("更新下载文件")
+    @PostMapping("/update")
+    public ReturnDTO updateDownloadFile(@RequestBody @Valid DownloadCenter downloadCenter, BindingResult bindingResult) {
+        if(bindingResult.hasErrors()){
+            throw new BusinessException(CoreExceptionEnum.REQUEST_NULL.getCode(), bindingResult.getFieldError().getDefaultMessage());
+        }
+        return downloadCenterService.updateDownloadFile(downloadCenter);
+    }
+
+    @ResponseBody
+    @ApiOperation("新增下载文件")
+    @PostMapping("/add")
+    public ReturnDTO addDownloadFile(@RequestBody @Valid DownloadCenter downloadCenter, BindingResult bindingResult) {
+        if(bindingResult.hasErrors()){
+            throw new BusinessException(CoreExceptionEnum.REQUEST_NULL.getCode(), bindingResult.getFieldError().getDefaultMessage());
+        }
+        return downloadCenterService.addDownloadFile(downloadCenter);
+    }
+
+    @ResponseBody
+    @ApiOperation("下载文件详情")
+    @PostMapping("/detail")
+    public ReturnDTO<DownloadCenter> downloadFileDetail(@RequestBody @Valid IdDTO idDTO) {
+        Assert.isFalse(Objects.isNull(idDTO.getId()), () -> {
+            throw new BusinessException(BusinessExceptionEnum.ID_NULL);
+        });
+        return ReturnUtil.success(downloadCenterService.downloadFileDetail(idDTO.getId()));
+    }
+
+    @ResponseBody
+    @ApiOperation("删除下载文件")
+    @PostMapping("/delete")
+    public ReturnDTO deleteDownloadFile(@RequestBody @Valid IdDTO idDTO) {
+        Assert.isFalse(Objects.isNull(idDTO.getId()), () -> {
+            throw new BusinessException(BusinessExceptionEnum.ID_NULL);
+        });
+        return downloadCenterService.deleteDownloadFile(idDTO.getId());
+    }
+
+    @ResponseBody
+    @ApiOperation("新增下载文件")
+    @PostMapping("/downloadFile")
+    public ReturnDTO<ResponseEntity>  downloadFile(@RequestBody @Valid DownloadFileRequest downloadFileRequest, BindingResult bindingResult) {
+        if(bindingResult.hasErrors()){
+            throw new BusinessException(CoreExceptionEnum.REQUEST_NULL.getCode(), bindingResult.getFieldError().getDefaultMessage());
+        }
+        return downloadCenterService.downloadFile(downloadFileRequest);
+
+    }
+
+
+    @ApiOperation("文件导出")
+    @PostMapping("/listExport")
+    @ResponseBody
+    public void export(@RequestBody @Valid DownloadListRequest request, BindingResult bindingResult, HttpServletResponse response) throws IOException {
+        if(bindingResult.hasErrors()){
+            throw new BusinessException(CoreExceptionEnum.REQUEST_NULL.getCode(), bindingResult.getFieldError().getDefaultMessage());
+        }
+        downloadCenterService.downloadFileExport(request,response);
+    }
+}
diff --git a/casic-metering-dao/src/main/java/com/casic/missiles/mapper/system/DownloadCenterMapper.java b/casic-metering-dao/src/main/java/com/casic/missiles/mapper/system/DownloadCenterMapper.java
new file mode 100644
index 0000000..4a75170
--- /dev/null
+++ b/casic-metering-dao/src/main/java/com/casic/missiles/mapper/system/DownloadCenterMapper.java
@@ -0,0 +1,22 @@
+package com.casic.missiles.mapper.system;
+
+import com.baomidou.mybatisplus.core.mapper.BaseMapper;
+import com.casic.missiles.dto.system.DownloadFileRequest;
+import com.casic.missiles.model.system.DownloadCenter;
+import org.apache.ibatis.annotations.Param;
+import org.apache.ibatis.annotations.Select;
+
+/**
+ * <p>
+ *  Mapper 接口
+ * </p>
+ *
+ * @author cz
+ * @since 2023-04-03
+ */
+public interface DownloadCenterMapper extends BaseMapper<DownloadCenter> {
+
+    Long selectMaxCOrderNo();
+    String getFileNameByBusiness(@Param("request") DownloadFileRequest downloadFileRequest);
+
+}
diff --git a/casic-metering-dao/src/main/resources/mapper/system/DownloadCenterMapper.xml b/casic-metering-dao/src/main/resources/mapper/system/DownloadCenterMapper.xml
new file mode 100644
index 0000000..1063077
--- /dev/null
+++ b/casic-metering-dao/src/main/resources/mapper/system/DownloadCenterMapper.xml
@@ -0,0 +1,46 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
+<mapper namespace="com.casic.missiles.mapper.system.DownloadCenterMapper">
+
+    <!-- 通用查询映射结果 -->
+    <resultMap id="BaseResultMap" type="com.casic.missiles.model.system.DownloadCenter">
+        <id column="id" property="id"/>
+        <result column="download_no" property="downloadNo"/>
+        <result column="business_module_name" property="moduleName"/>
+        <result column="business_download_type" property="businessDownloadType"/>
+        <result column="minio_file_name" property="minioFileName"/>
+        <result column="file_type" property="fileType"/>
+        <result column="file_name" property="fileName"/>
+        <result column="desc" property="desc"/>
+        <result column="create_user" property="createUser"/>
+        <result column="update_user" property="updateUser"/>
+        <result column="is_del" property="isDel"/>
+        <result column="create_time" property="createTime"/>
+        <result column="update_time" property="updateTime"/>
+    </resultMap>
+
+    <!-- 通用查询结果列 -->
+    <sql id="Base_Column_List">
+        id
+        , download_no, business_module_name, business_download_type, minio_file_name, file_name, desc, create_user, update_user, is_del, create_time, update_time
+    </sql>
+
+
+    <select id="selectMaxCOrderNo" resultType="java.lang.Long">
+        SELECT IFNULL(max(RIGHT (download_no, 12)), 0)
+        from system_download_center
+    </select>
+
+    <select id="getFileNameByBusiness" resultType="java.lang.String">
+        SELECT file_name
+        from  system_download_center
+        <if test="request.moduleName != null and request.moduleName !=''">
+            and module_name like concat('%',#{request.moduleName},'%')
+        </if>
+        <if test="request.businessDownloadType != null and request.businessDownloadType !=''">
+            and business_download_type = #{request.businessDownloadType }
+        </if>
+
+    </select>
+
+</mapper>
diff --git a/casic-metering-model/src/main/java/com/casic/missiles/model/system/DownloadCenter.java b/casic-metering-model/src/main/java/com/casic/missiles/model/system/DownloadCenter.java
new file mode 100644
index 0000000..cb60f73
--- /dev/null
+++ b/casic-metering-model/src/main/java/com/casic/missiles/model/system/DownloadCenter.java
@@ -0,0 +1,93 @@
+package com.casic.missiles.model.system;
+
+import com.baomidou.mybatisplus.annotation.TableField;
+import com.baomidou.mybatisplus.annotation.TableId;
+import com.baomidou.mybatisplus.annotation.TableName;
+import java.io.Serializable;
+import java.time.LocalDateTime;
+
+import io.swagger.annotations.ApiModelProperty;
+import lombok.Getter;
+import lombok.Setter;
+
+import javax.validation.constraints.NotNull;
+
+/**
+ * <p>
+ * 
+ * </p>
+ *
+ * @author cz
+ * @since 2023-04-03
+ */
+@Getter
+@Setter
+@TableName("system_download_center")
+public class DownloadCenter implements Serializable {
+
+    private static final long serialVersionUID = 1L;
+
+    @TableId("id")
+    private Long id;
+
+    @ApiModelProperty("下载编号")
+    @TableField("download_no")
+    private String downloadNo;
+
+    @NotNull
+    @ApiModelProperty("业务模块名称")
+    @TableField("module_name")
+    private String moduleName;
+
+    @NotNull
+    @ApiModelProperty("业务类型(字典)")
+    @TableField("business_download_type")
+    private String businessDownloadType;
+
+    @ApiModelProperty("minio存储文件名")
+    @TableField("minio_file_name")
+    private String minioFileName;
+
+    @TableField("file_name")
+    @ApiModelProperty("文件名称")
+    private String fileName;
+
+    @ApiModelProperty("文件类型")
+    @TableField("file_type")
+    private String fileType;
+
+    @ApiModelProperty("描述备注")
+    @TableField("desc")
+    private String desc;
+
+    /**
+     * 创建人id
+     */
+    @TableField("create_user")
+    private Long createUser;
+
+    /**
+     * 更新人id
+     */
+    @TableField("update_user")
+    private Long updateUser;
+
+    /**
+     * 删除标记
+     */
+    @TableField("is_del")
+    private Boolean isDel;
+
+    /**
+     * 创建时间
+     */
+    @TableField("create_time")
+    private LocalDateTime createTime;
+
+    /**
+     * 更新时间
+     */
+    @TableField("update_time")
+    private LocalDateTime updateTime;
+
+}
diff --git a/casic-metering-service/src/main/java/com/casic/missiles/service/system/IDownloadCenterService.java b/casic-metering-service/src/main/java/com/casic/missiles/service/system/IDownloadCenterService.java
new file mode 100644
index 0000000..dacc27a
--- /dev/null
+++ b/casic-metering-service/src/main/java/com/casic/missiles/service/system/IDownloadCenterService.java
@@ -0,0 +1,37 @@
+package com.casic.missiles.service.system;
+
+import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
+import com.baomidou.mybatisplus.extension.service.IService;
+import com.casic.missiles.dto.ReturnDTO;
+import com.casic.missiles.dto.system.DownloadFileRequest;
+import com.casic.missiles.dto.system.DownloadListRequest;
+import com.casic.missiles.dto.system.DownloadListResponse;
+import com.casic.missiles.model.system.DownloadCenter;
+
+import javax.servlet.http.HttpServletResponse;
+import java.io.IOException;
+
+/**
+ * <p>
+ * 服务类
+ * </p>
+ *
+ * @author cz
+ * @since 2023-04-03
+ */
+public interface IDownloadCenterService extends IService<DownloadCenter> {
+
+    Page<DownloadListResponse> listPage(Page<DownloadCenter> page, DownloadListRequest request);
+
+    void downloadFileExport(DownloadListRequest request, HttpServletResponse response) throws IOException;
+
+    ReturnDTO addDownloadFile(DownloadCenter downloadCenter);
+
+    ReturnDTO updateDownloadFile(DownloadCenter downloadCenter);
+
+    DownloadCenter downloadFileDetail(Long id);
+
+    ReturnDTO deleteDownloadFile(Long id);
+
+    ReturnDTO downloadFile(DownloadFileRequest downloadFileRequest);
+}