1、添加文件上传模块

ruoyi-system/src/main/java/com/ruoyi/system/domain/SysUploadFile.java

+package com.ruoyi.system.domain;
+
+import com.fasterxml.jackson.annotation.JsonFormat;
+import com.ruoyi.common.annotation.Excel;
+import com.ruoyi.common.core.domain.BaseEntity;
+import org.apache.commons.lang3.builder.ToStringBuilder;
+import org.apache.commons.lang3.builder.ToStringStyle;
+
+import java.util.Date;
+
+/**
+ * 文件对象 sys_file
+ * 
+ * @author hzhou
+ * @date 2022-08-18
+ */
+public class SysUploadFile extends BaseEntity
+{
+    private static final long serialVersionUID = 1L;
+
+    /** 主键id */
+    private Long fileId;
+
+    /** 文件名 */
+    @Excel(name = "文件名")
+    private String fileName;
+
+    /** 文件路径 */
+    @Excel(name = "文件路径")
+    private String filePath;
+
+    /** 创建时间 */
+    @JsonFormat(pattern = "yyyy-MM-dd")
+    @Excel(name = "创建时间", width = 30, dateFormat = "yyyy-MM-dd")
+    private Date createDate;
+
+    public void setFileId(Long fileId) 
+    {
+        this.fileId = fileId;
+    }
+
+    public Long getFileId() 
+    {
+        return fileId;
+    }
+    public void setFileName(String fileName) 
+    {
+        this.fileName = fileName;
+    }
+
+    public String getFileName() 
+    {
+        return fileName;
+    }
+    public void setFilePath(String filePath) 
+    {
+        this.filePath = filePath;
+    }
+
+    public String getFilePath() 
+    {
+        return filePath;
+    }
+    public void setCreateDate(Date createDate) 
+    {
+        this.createDate = createDate;
+    }
+
+    public Date getCreateDate() 
+    {
+        return createDate;
+    }
+
+    @Override
+    public String toString() {
+        return new ToStringBuilder(this,ToStringStyle.MULTI_LINE_STYLE)
+            .append("fileId", getFileId())
+            .append("fileName", getFileName())
+            .append("filePath", getFilePath())
+            .append("createBy", getCreateBy())
+            .append("createDate", getCreateDate())
+            .toString();
+    }
+}

ruoyi-system/src/main/java/com/ruoyi/system/mapper/SysUploadFileMapper.java

+package com.ruoyi.system.mapper;
+
+import com.ruoyi.system.domain.SysUploadFile;
+import org.apache.ibatis.annotations.Param;
+
+import java.util.List;
+
+/**
+ * 文件Mapper接口
+ * 
+ * @author hzhou
+ * @date 2022-08-18
+ */
+public interface SysUploadFileMapper
+{
+    /**
+     * 查询文件
+     * 
+     * @param fileId 文件主键
+     * @return 文件
+     */
+    public SysUploadFile selectSysFileByFileId(Long fileId);
+
+    /**
+     * 查询文件列表
+     * 
+     * @param sysUploadFile 文件
+     * @return 文件集合
+     */
+    public List<SysUploadFile> selectSysFileList(SysUploadFile sysUploadFile);
+
+    /**
+     * 新增文件
+     * 
+     * @param sysUploadFile 文件
+     * @return 结果
+     */
+    public int insertSysFile(SysUploadFile sysUploadFile);
+
+    /**
+     * 修改文件
+     * 
+     * @param sysUploadFile 文件
+     * @return 结果
+     */
+    public int updateSysFile(SysUploadFile sysUploadFile);
+
+    /**
+     * 删除文件
+     * 
+     * @param fileId 文件主键
+     * @return 结果
+     */
+    public int deleteSysFileByFileId(Long fileId);
+
+    /**
+     * 批量删除文件
+     * 
+     * @param fileIds 需要删除的数据主键集合
+     * @return 结果
+     */
+    public int deleteSysFileByFileIds(Long[] fileIds);
+
+    public List<SysUploadFile> selectSysFileByFileIds(@Param("fileIds") List<Long> fileIds);
+}

ruoyi-system/src/main/java/com/ruoyi/system/service/ISysUploadFileService.java

+package com.ruoyi.system.service;
+
+import com.ruoyi.system.domain.SysUploadFile;
+import org.springframework.web.multipart.MultipartFile;
+
+import java.util.List;
+
+/**
+ * 文件Service接口
+ * 
+ * @author hzhou
+ * @date 2022-08-18
+ */
+public interface ISysUploadFileService
+{
+    /**
+     * 查询文件
+     * 
+     * @param fileId 文件主键
+     * @return 文件
+     */
+    public SysUploadFile selectSysFileByFileId(Long fileId);
+
+    /**
+     * 查询文件列表
+     * 
+     * @param sysUploadFile 文件
+     * @return 文件集合
+     */
+    public List<SysUploadFile> selectSysFileList(SysUploadFile sysUploadFile);
+
+    /**
+     * 新增文件
+     * 
+     * @param sysUploadFile 文件
+     * @return 结果
+     */
+    public int insertSysFile(SysUploadFile sysUploadFile);
+
+    /**
+     * 修改文件
+     * 
+     * @param sysUploadFile 文件
+     * @return 结果
+     */
+    public int updateSysFile(SysUploadFile sysUploadFile);
+
+    /**
+     * 批量删除文件
+     * 
+     * @param fileIds 需要删除的文件主键集合
+     * @return 结果
+     */
+    public int deleteSysFileByFileIds(Long[] fileIds);
+
+    /**
+     * 删除文件信息
+     * 
+     * @param fileId 文件主键
+     * @return 结果
+     */
+    public int deleteSysFileByFileId(Long fileId);
+
+    /**
+     * 上传通用服务
+     *
+     * @param file 文件
+     * @return 结果
+     */
+    public Long upload(MultipartFile file,String filePath,String userName,String url);
+
+    public List<SysUploadFile> selectSysFileByFileIds(List<Long> fileIds);
+}

ruoyi-system/src/main/java/com/ruoyi/system/service/impl/SysUploadFileServiceImpl.java

+package com.ruoyi.system.service.impl;
+
+import com.ruoyi.common.utils.file.FileUploadUtils;
+import com.ruoyi.system.domain.SysUploadFile;
+import com.ruoyi.system.mapper.SysUploadFileMapper;
+import com.ruoyi.system.service.ISysUploadFileService;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+import org.springframework.web.multipart.MultipartFile;
+
+import java.util.ArrayList;
+import java.util.Date;
+import java.util.List;
+
+/**
+ * 文件Service业务层处理
+ * 
+ * @author hzhou
+ * @date 2022-08-18
+ */
+@Service
+public class SysUploadFileServiceImpl implements ISysUploadFileService
+{
+    @Autowired
+    private SysUploadFileMapper sysUploadFileMapper;
+
+    /**
+     * 查询文件
+     * 
+     * @param fileId 文件主键
+     * @return 文件
+     */
+    @Override
+    public SysUploadFile selectSysFileByFileId(Long fileId)
+    {
+        return sysUploadFileMapper.selectSysFileByFileId(fileId);
+    }
+
+    /**
+     * 查询文件列表
+     * 
+     * @param sysUploadFile 文件
+     * @return 文件
+     */
+    @Override
+    public List<SysUploadFile> selectSysFileList(SysUploadFile sysUploadFile)
+    {
+        return sysUploadFileMapper.selectSysFileList(sysUploadFile);
+    }
+
+    /**
+     * 新增文件
+     * 
+     * @param sysUploadFile 文件
+     * @return 结果
+     */
+    @Override
+    public int insertSysFile(SysUploadFile sysUploadFile)
+    {
+        return sysUploadFileMapper.insertSysFile(sysUploadFile);
+    }
+
+    /**
+     * 修改文件
+     * 
+     * @param sysUploadFile 文件
+     * @return 结果
+     */
+    @Override
+    public int updateSysFile(SysUploadFile sysUploadFile)
+    {
+        return sysUploadFileMapper.updateSysFile(sysUploadFile);
+    }
+
+    /**
+     * 批量删除文件
+     * 
+     * @param fileIds 需要删除的文件主键
+     * @return 结果
+     */
+    @Override
+    public int deleteSysFileByFileIds(Long[] fileIds)
+    {
+        return sysUploadFileMapper.deleteSysFileByFileIds(fileIds);
+    }
+
+    /**
+     * 删除文件信息
+     * 
+     * @param fileId 文件主键
+     * @return 结果
+     */
+    @Override
+    public int deleteSysFileByFileId(Long fileId)
+    {
+        return sysUploadFileMapper.deleteSysFileByFileId(fileId);
+    }
+
+    @Override
+    public Long upload(MultipartFile file,String filePath,String userName,String url) {
+        int result;
+        SysUploadFile sysFile = new SysUploadFile();
+        try
+        {
+            // 上传并返回新文件名称
+            String fileName = file.getOriginalFilename();
+            String newFileName = FileUploadUtils.upload(filePath, file);
+
+            // 正式部署文件上传公网地址
+            url = url + newFileName;
+
+            sysFile.setFileName(fileName);
+            sysFile.setFilePath(url);
+            sysFile.setCreateBy(userName);
+            sysFile.setCreateDate(new Date());
+            result = insertSysFile(sysFile);
+        }
+        catch (Exception e)
+        {
+            e.printStackTrace();
+            throw new RuntimeException("上传文件失败..");
+        }
+        return sysFile.getFileId();
+    }
+
+    @Override
+    public List<SysUploadFile> selectSysFileByFileIds(List<Long> fileIds) {
+        if (fileIds.isEmpty()) return new ArrayList<>();
+        return sysUploadFileMapper.selectSysFileByFileIds(fileIds);
+    }
+}

ruoyi-system/src/main/resources/mapper/system/SysUploadFileMapper.xml

+<?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.ruoyi.system.mapper.SysUploadFileMapper">
+    
+    <resultMap type="com.ruoyi.system.domain.SysUploadFile" id="SysFileResult">
+        <result property="fileId"    column="file_id"    />
+        <result property="fileName"    column="file_name"    />
+        <result property="filePath"    column="file_path"    />
+        <result property="createBy"    column="create_by"    />
+        <result property="createDate"    column="create_date"    />
+    </resultMap>
+
+    <sql id="selectSysFileVo">
+        select file_id, file_name, file_path, create_by, create_date from sys_file
+    </sql>
+
+    <select id="selectSysFileList" parameterType="com.ruoyi.system.domain.SysUploadFile" resultMap="SysFileResult">
+        <include refid="selectSysFileVo"/>
+        <where>  
+            <if test="fileName != null  and fileName != ''"> and file_name like concat('%', #{fileName}, '%')</if>
+            <if test="filePath != null  and filePath != ''"> and file_path = #{filePath}</if>
+            <if test="createDate != null "> and create_date = #{createDate}</if>
+        </where>
+    </select>
+    
+    <select id="selectSysFileByFileId" parameterType="Long" resultMap="SysFileResult">
+        <include refid="selectSysFileVo"/>
+        where file_id = #{fileId}
+    </select>
+    <select id="selectSysFileByFileIds" resultMap="SysFileResult">
+        <include refid="selectSysFileVo"/>
+        where file_id in
+        <foreach item="fileId" collection="fileIds" open="(" separator="," close=")">
+            #{fileId}
+        </foreach>
+    </select>
+
+    <insert id="insertSysFile" parameterType="com.ruoyi.system.domain.SysUploadFile" useGeneratedKeys="true" keyProperty="fileId">
+        insert into sys_file
+        <trim prefix="(" suffix=")" suffixOverrides=",">
+            <if test="fileName != null">file_name,</if>
+            <if test="filePath != null">file_path,</if>
+            <if test="createBy != null">create_by,</if>
+            <if test="createDate != null">create_date,</if>
+         </trim>
+        <trim prefix="values (" suffix=")" suffixOverrides=",">
+            <if test="fileName != null">#{fileName},</if>
+            <if test="filePath != null">#{filePath},</if>
+            <if test="createBy != null">#{createBy},</if>
+            <if test="createDate != null">#{createDate},</if>
+         </trim>
+    </insert>
+
+    <update id="updateSysFile" parameterType="com.ruoyi.system.domain.SysUploadFile">
+        update sys_file
+        <trim prefix="SET" suffixOverrides=",">
+            <if test="fileName != null">file_name = #{fileName},</if>
+            <if test="filePath != null">file_path = #{filePath},</if>
+            <if test="createBy != null">create_by = #{createBy},</if>
+            <if test="createDate != null">create_date = #{createDate},</if>
+        </trim>
+        where file_id = #{fileId}
+    </update>
+
+    <delete id="deleteSysFileByFileId" parameterType="Long">
+        delete from sys_file where file_id = #{fileId}
+    </delete>
+
+    <delete id="deleteSysFileByFileIds" parameterType="String">
+        delete from sys_file where file_id in 
+        <foreach item="fileId" collection="array" open="(" separator="," close=")">
+            #{fileId}
+        </foreach>
+    </delete>
+</mapper>
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