六、实现上传功能并展示数据

6.1.创建数据库

CREATE DATABASE IF NOT EXISTS fastdfs CHARACTER SET utf8mb4;

show databases;

USE fastdfs;

CREATE TABLE `fast_dfs_file` (
  `id` bigint(20) NOT NULL AUTO_INCREMENT PRIMARY KEY COMMENT '主键',
  `file_id` varchar(200) NOT NULL COMMENT '文件的fileId',
  `file_path` varchar(200) NOT NULL COMMENT '文件路径',
  `file_size` bigint(25) NOT NULL COMMENT '文件大小',
  `file_name` varchar(25) NOT NULL COMMENT '文件名',
  `ext` varchar(30) NOT NULL COMMENT '文件的扩展名,不包含（.）',
  `file_type` varchar(50) NOT NULL COMMENT '文件类型',
  `create_time` datetime DEFAULT NULL COMMENT '创建时间',
  `update_time` datetime DEFAULT NULL COMMENT '最后修改时间'
) ENGINE=InnoDB AUTO_INCREMENT=1 DEFAULT CHARSET=utf8mb4 COMMENT='文件表';

CREATE TABLE `fast_dfs_file_type` (
  `id` bigint(20) NOT NULL AUTO_INCREMENT PRIMARY KEY COMMENT '主键',
  `file_type` varchar(50) NOT NULL COMMENT '文件类型',
  `create_time` datetime DEFAULT NULL COMMENT '创建时间',
  `update_time` datetime DEFAULT NULL COMMENT '最后修改时间'
) ENGINE=InnoDB AUTO_INCREMENT=1 DEFAULT CHARSET=utf8mb4 COMMENT='文件类型表';

insert into fast_dfs_file_type(file_type)values('image/jpeg'),('image/png'),('image/jpg');

6.2.创建spring boot项目fastDFS-java

6.3.引入依赖

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.7.5</version>
        <relativePath/>
    </parent>

    <groupId>com.orange</groupId>
    <artifactId>fastDFS-java</artifactId>
    <version>0.0.1-SNAPSHOT</version>

    <dependencies>
        <!--web起步依赖-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>

        <!--fastdfs-client-java依赖需要自己手动打包上传到本地仓库-->
        <dependency>
            <groupId>org.csource</groupId>
            <artifactId>fastdfs-client-java</artifactId>
            <version>1.31-SNAPSHOT</version>
        </dependency>

        <!--mybatis起步依赖-->
        <dependency>
            <groupId>org.mybatis.spring.boot</groupId>
            <artifactId>mybatis-spring-boot-starter</artifactId>
            <version>2.2.2</version>
        </dependency>

        <!--mysql驱动-->
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <scope>runtime</scope>
        </dependency>

        <!--lombok-->
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
        </dependency>

        <!--springboot单元测试-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>

        <!--pagehelper分页插件-->
        <dependency>
            <groupId>com.github.pagehelper</groupId>
            <artifactId>pagehelper-spring-boot-starter</artifactId>
            <version>1.4.2</version>
        </dependency>

        <dependency>
            <groupId>org.apache.commons</groupId>
            <artifactId>commons-io</artifactId>
            <version>1.3.2</version>
        </dependency>

        <dependency>
            <groupId>commons-fileupload</groupId>
            <artifactId>commons-fileupload</artifactId>
            <version>1.4</version>
        </dependency>

        <!--druid-->
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>druid-spring-boot-starter</artifactId>
            <version>1.2.8</version>
        </dependency>

        <!--json处理器-->
        <dependency>
            <groupId>com.google.code.gson</groupId>
            <artifactId>gson</artifactId>
        </dependency>

        <!-- https://mvnrepository.com/artifact/com.alibaba/fastjson -->
        <!--fastJson是一个JSON的处理工具包，由阿里巴巴公司研发推出。我们使用它将List或者Map转换成JSON对象-->
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>fastjson</artifactId>
            <version>1.2.47</version>
        </dependency>

        <dependency>
            <groupId>com.auth0</groupId>
            <artifactId>java-jwt</artifactId>
            <version>3.2.0</version>
        </dependency>

        <!--shiro安全依赖包-->
        <dependency>
            <groupId>org.apache.shiro</groupId>
            <artifactId>shiro-spring</artifactId>
            <version>1.4.0</version>
        </dependency>

    </dependencies>

    <build>
        <!--项目打包时会将Java目录中的*.xml文件也进行打包-->
        <resources>
            <resource>
                <directory>src/main/java</directory>
                <includes>
                    <include>**/*.xml</include>
                </includes>
                <filtering>false</filtering>
            </resource>
        </resources>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>

</project>

6.3.fastdfs-client配置文件

## fastdfs-client.properties

#fastDFS连接超时时间，针对socket套接字函数connect
connect_timeout_in_seconds = 5
#fastDFS网络超时时间
network_timeout_in_seconds = 30

#编码格式
charset = UTF-8

#是否启用token验证(针对fdfs配置文件/etc/fdfs/http.conf，防盗链)
http_anti_steal_token = false
#连接密钥(http.conf要配置一样的密钥)
http_secret_key = FastDFS1234567890
#tracker服务器访问端口
http_tracker_http_port = 80

#tracker服务器地址，多个以逗号隔开
fastdfs.tracker_servers = 192.168.229.141:22122

6.4.跨域配置GlobalCrosConfig.java

/**
 * 跨域配置文件
 **/
@Configuration
public class GlobalCrosConfig implements WebMvcConfigurer {
    @Override
    public void addCorsMappings(CorsRegistry registry) {
        registry.addMapping("/**")// 对所有路径应用跨域配置,所有的当前站点的请求地址，都支持跨域访问。
                //是否发送Cookie
                .allowCredentials(true)
                //放行哪些原始域
                .allowedHeaders("*")
                .allowedMethods("POST", "GET", "HEAD", "PUT", "OPTIONS", "DELETE")
                .allowedOriginPatterns("*")// 所有的外部域都可跨域访问。
                // 如果是localhost则很难配置，因为在跨域请求的时候，外部域的解析可能是localhost、127.0.0.1、主机名
                .maxAge(3600);// 超时时长设置为1小时。 时间单位是秒。
    }
}

/*
@Configuration
public class GlobalCrosConfig {
    @Bean
    public WebMvcConfigurer corsConfigurer() {
        return new WebMvcConfigurer() {
            @Override
            public void addCorsMappings(CorsRegistry registry) {
                registry.addMapping("/**")    //添加映射路径，“/**”表示对所有的路径实行全局跨域访问权限的设置
                        //.allowedOrigins("*")    //开放哪些ip、端口、域名的访问权限
                        .allowedOriginPatterns("*")    //开放哪些ip、端口、域名的访问权限
                        .allowCredentials(true)  //是否允许发送Cookie信息
                        .allowedMethods("GET", "POST", "PUT", "DELETE")     //开放哪些Http方法，允许跨域访问
                        .allowedHeaders("*")     //允许HTTP请求中的携带哪些Header信息
                        .exposedHeaders("*");   //暴露哪些头部信息（因为跨域访问默认不能获取全部头部信息）
            }
        };
    }
}*/

6.5.创建模型–实体类

6.5.1.FastDfsFile.java

/**
 * 文件类
 */
@Data
@NoArgsConstructor
@AllArgsConstructor
@Repository
public class FastDfsFile {
    private Long id;
    private String fileId;//文件的fileId
    private String filePath;//文件路径
    private Long fileSize;//文件大小
    private String fileName;//文件名
    private String ext;//文件的扩展名,不包含（.）
    private String fileType;//文件类型
    private LocalDateTime createTime; //创建时间
    private LocalDateTime updateTime; //修改时间
}

6.5.2.FastDfsFileType.java

/**
 * 文件类型表
 */
@Data
@NoArgsConstructor
@AllArgsConstructor
@Repository
public class FastDfsFileType {
    private Long id;
    private String fileType;//文件类型
    private LocalDateTime createTime; //创建时间
    private LocalDateTime updateTime; //修改时间
}

6.5.3.PageBean.java

/**
 * 分页查询结果的封装类
 */
@Data
@NoArgsConstructor
@AllArgsConstructor
public class PageBean<T> {
    //当前页数
    private int currPageNo;

    //每页显示的记录数
    private int pageSize;

    //总记录数
    private int totalCount;

    //总页数=总条数/每页显示的条数
    private int totalPage;

    //每页的显示的数据
    private List<T> lists;
}

6.5.4.R.java

@Data
@Accessors(chain = true) //对R进行链式操作
public class R {

    private Integer code;//响应码
    private String message;//响应消息
    private Map<String,Object> data=new HashMap<>();

    public static R ok(){
        R r = new R();
        r.setCode(0);
        r.setMessage("成功");
        return r;
    }

    public static R error(){
        R r = new R();
        r.setCode(-1);
        r.setMessage("失败");
        return r;
    }

    public R data(String key,Object value){

        this.data.put(key, value);

        return this;
    }
}

6.5.5.Result.java

@Data
@NoArgsConstructor
@AllArgsConstructor
public class Result {
    private Integer code;//响应码，1 代表成功; 0 代表失败
    private String msg;  //响应信息 描述字符串
    private Object data; //返回的数据

    //增删改 成功响应
    public static Result success(){
        return new Result(1,"success",null);
    }
    //查询 成功响应
    public static Result success(Object data){
        return new Result(1,"success",data);
    }
    //失败响应
    public static Result error(String msg){
        return new Result(0,msg,null);
    }
}

6.6.创建application.yml

server:
  port: 9090

#Mybatis配置
mybatis:
  configuration: #sql日志
    log-impl: org.apache.ibatis.logging.stdout.StdOutImpl
    #驼峰命名
    map-underscore-to-camel-case: true
  mapper-locations: classpath:com/orange/fastdfs/mapper/*.xml

#spring事务管理日志
logging:
  level:
    org.springframework.jdbc.support.JdbcTransactionManager: debug

spring:
  #数据库连接信息
  datasource:
    driver-class-name: com.mysql.cj.jdbc.Driver
    url: jdbc:mysql://192.168.229.141:3306/fastdfs?characterEncoding=utf-8&&useSSL=false
    username: root
    password: 123456
  jackson:
    date-format: yyyy-MM-dd HH:mm:ss
    time-zone: GMT+8
# 文件上传的配置
# linux临时文件目录
# mkdir -p /data/tmp/updatefile
  servlet:
    multipart:
      location: /data/tmp/updatefile
      max-file-size: 10MB
      max-request-size: 10MB

6.7.创建Service

6.7.1.FastDfsFileService

public interface FastDfsFileService {
    void save(FastDfsFile fastDfsFile);

    void updateById(FastDfsFile fastDfsFile);

    FastDfsFile selectById(Long id);

    Long selectByFileId(String fileId);

    int deleteFastDfsFileById(Long id);

    List<FastDfsFile> selectAll();

    PageBean<FastDfsFile> findFastDfsFileByPage(int currPageNo, int pageSize);
}

6.7.2.FastDfsFileServiceImpl

@Service
public class FastDfsFileServiceImpl implements FastDfsFileService {

    @Resource
    private FastDfsFileMapper fastDfsFileMapper;

    /**
     * 存储数据
     *
     * @param fastDfsFile
     */
    @Override
    public void save(FastDfsFile fastDfsFile) {
        fastDfsFileMapper.insert(fastDfsFile);
    }

    @Override
    public void updateById(FastDfsFile fastDfsFile) {
        fastDfsFileMapper.updateById(fastDfsFile);
    }

    @Override
    public FastDfsFile selectById(Long id) {
        return fastDfsFileMapper.selectById(id);
    }

    /**
     * 根据fileId查询id
     *
     * @param fileId
     * @return
     */
    @Override
    public Long selectByFileId(String fileId) {
        return fastDfsFileMapper.selectByFileId(fileId);
    }

    /**
     * 根据id删除
     *
     * @param id
     * @return
     */
    @Override
    public int deleteFastDfsFileById(Long id) {
        return fastDfsFileMapper.deleteById(id);
    }

    /**
     * 查询所有
     *
     * @return
     */
    @Override
    public List<FastDfsFile> selectAll() {
        return fastDfsFileMapper.selectAll();
    }

    @Override
    public PageBean<FastDfsFile> findFastDfsFileByPage(int currPageNo, int pageSize) {
        PageBean<FastDfsFile> pageBean = new PageBean<>();

        //封装当前页数
        pageBean.setCurrPageNo(currPageNo);
        //每页显示的条数
        pageBean.setPageSize(pageSize);
        //总记录数
        int totalCount = fastDfsFileMapper.selectCount();
        pageBean.setTotalCount(totalCount);
        //总页数=总条数/每页显示的条数
        Double num = Math.ceil(totalCount / pageSize);
        int totalPage = num.intValue();
        pageBean.setTotalPage(totalPage);

        int offset = (currPageNo - 1) * pageSize;
        int limit = pageBean.getPageSize();
        //封装每页显示的数据
        List<FastDfsFile> list = fastDfsFileMapper.findeByPage(offset, limit);
        pageBean.setLists(list);

        return pageBean;
    }
}

6.7.3.FastDfsFileTypeService

public interface FastDfsFileTypeService {
    int selectByFileType(String fileType);
}

6.7.4.FastDfsFileTypeServiceImpl

@Service
public class FastDfsFileTypeServiceImpl implements FastDfsFileTypeService {

    @Resource
    private FastDfsFileTypeMapper fastDfsFileTypeMapper;

    @Override
    public int selectByFileType(String fileType) {
        return fastDfsFileTypeMapper.select(fileType);
    }
}

6.8.创建Mapper

6.8.1.FastDfsFileMapper

@Mapper
public interface FastDfsFileMapper {
    void insert(FastDfsFile fastDfsFile);

    Long selectByFileId(String fileId);

    int deleteById(Long id);

    List<FastDfsFile> selectAll();

    int selectCount();

    List<FastDfsFile> findeByPage(int offset, int limit);

    void updateById(FastDfsFile fastDfsFile);

    FastDfsFile selectById(Long id);
}

6.8.2.FastDfsFileMapper.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.orange.fastdfsjava.mapper.FastDfsFileMapper">

    <insert id="insert" parameterType="com.orange.fastdfsjava.pojo.FastDfsFile">
        insert into fast_dfs_file
        (file_id, file_path, file_size, ext, file_name, file_type, create_time, update_time)
        values (#{fileId}, #{filePath}, #{fileSize}, #{ext}, #{fileName}, #{fileType}, #{createTime}, #{updateTime})
    </insert>

    <update id="updateById">
        update fast_dfs_file
        set file_id     = #{fileId},
            file_path   = #{filePath},
            file_size   = #{fileSize},
            ext         = #{ext},
            file_name   = #{fileName},
            file_type   = #{fileType},
            create_time = #{createTime},
            update_time = #{updateTime}
        where id = #{id}
    </update>

    <delete id="deleteById">
        delete
        from fast_dfs_file
        where id = #{id}
    </delete>

    <select id="selectByFileId" resultType="java.lang.Long">
        select id
        from fast_dfs_file
        where file_id = #{fileId}
    </select>

    <select id="selectAll" resultType="com.orange.fastdfsjava.pojo.FastDfsFile">
        select *
        from fast_dfs_file
    </select>

    <select id="selectCount" resultType="java.lang.Integer">
        select count(*)
        from fast_dfs_file
    </select>

    <select id="findeByPage" resultType="com.orange.fastdfsjava.pojo.FastDfsFile">
        select *
        from fast_dfs_file limit #{offset},#{limit}
    </select>

    <select id="selectById" resultType="com.orange.fastdfsjava.pojo.FastDfsFile">
        select *
        from fast_dfs_file
        where id = #{id}
    </select>

</mapper>

6.8.3.FastDfsFileTypeMapper

@Mapper
public interface FastDfsFileTypeMapper {
    int select(String fileType);
}

6.8.4.FastDfsFileTypeMapper.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.orange.fastdfsjava.mapper.FastDfsFileTypeMapper">

    <select id="select" resultType="java.lang.Integer">
        select count(*)
        from fast_dfs_file_type
        where file_type = #{fileType}
    </select>
</mapper>

6.9.创建fastDFS客户端

@Slf4j
public class FastDFSClient {

    static {
        //加载fastDFS客户端的配置文件
        try {
            ClientGlobal.initByProperties("config/fastdfs-client.properties");
            log.info("network_timeout = {} ms", ClientGlobal.g_network_timeout);
            log.info("charset= {}", ClientGlobal.g_charset);
        } catch (IOException e) {
            e.printStackTrace();
        } catch (MyException e) {
            e.printStackTrace();
        }
    }

    /**
     * 上传文件
     * @param file
     * @param fastDFSFile
     * @return
     * @throws IOException
     */
    public static FastDfsFile upload(MultipartFile file, FastDfsFile fastDFSFile) throws IOException {
        byte[] file_buff = null;
        //把文件转成输入流
        InputStream inputStream = file.getInputStream();
        if (inputStream != null) {
            //获取输入流中可读取的数据大小
            int len = inputStream.available();
            //创建足够大的缓冲区
            file_buff = new byte[len];
            //一次性把输入流中的数据全都读入到缓冲区file_buff,那file_buff就要足够大,占用内存也会很大
            inputStream.read(file_buff);
        }
        //关闭输入流
        inputStream.close();

        //通过fastDSF的client代码访问tracker和storage
        try {
            //创建tracker的客户端
            TrackerClient trackerClient = new TrackerClient(ClientGlobal.getG_tracker_group());
            //通过TrackerClient对象获取TrackerServer信息
            TrackerServer trackerServer = trackerClient.getTrackerServer();
            StorageServer storageServer = null;

            //定义storage的客户端,建立与Storage服务器的连接
            StorageClient1 storageClient = new StorageClient1(trackerServer, storageServer);

            //文件元信息
            NameValuePair[] metaList = new NameValuePair[1];
            metaList[0] = new NameValuePair("fileName", fastDFSFile.getFileName());

            //执行上传
            String fileId = storageClient.upload_file1(file_buff, fastDFSFile.getExt(), metaList);
            log.info("upload success. file id is: {}", fileId);
            fastDFSFile.setFileId(fileId);
            fastDFSFile.setFilePath(fileId);
            fastDFSFile.setFileSize(file.getSize());
            fastDFSFile.setCreateTime(LocalDateTime.now());
            fastDFSFile.setUpdateTime(LocalDateTime.now());
            //通过调用service及dao将文件的路径存储到数据库中

            //关闭storage客户端
            storageClient.close();
            return fastDFSFile;
        } catch (Exception e) {
            log.error("上传文件失败：", e);
            e.printStackTrace();
            return null;
        }
    }

}

6.10.创建全局异常处理器

/**
 * 全局异常处理器
 */
@RestControllerAdvice
public class GlobalExceptionHandler {

    @ExceptionHandler(Exception.class) //捕获所有的异常
    public Result ex(Exception ex){
        ex.printStackTrace();
        return Result.error("对不起，操作失败，请联系管理员");
    }

}

6.11.创建Controller

@Slf4j
@RestController
@RequestMapping("/fastDFSFile")
public class FileServerController {

    @Resource
    private FastDfsFileService fastDfsFileService;

    @Resource
    private FastDfsFileTypeService fastDfsFileTypeService;

    @PostMapping("/upload")
    @ResponseBody
    public R upload(@RequestParam("file") MultipartFile file) throws IOException {
        //将文件先存储在web服务器上(本机),在调用fastDFS的client将文件上传到 fastDFS服务器
        FastDfsFile fastDFSFile = new FastDfsFile();

        String contentType = file.getContentType();
        //检验当前文件是否在上述集合中
        log.info("上传的文件类型为：{}", contentType);
        int count = fastDfsFileTypeService.selectByFileType(contentType);
        if (count < 1) {
            log.info("不支持此文件类型上传 : {}", contentType);
            return R.error().setCode(208).setMessage("不支持此文件类型上传 : " + contentType);
        }
        log.info("此文件类型为 : {}", contentType);
        fastDFSFile.setFileType(contentType);

        //文件原始名称
        String originalFilename = file.getOriginalFilename();
        log.info("原始文件名称 : {}", originalFilename);
        fastDFSFile.setFileName(originalFilename);

        //文件扩展名比如22.jpg
        String filenameExtension = StringUtils.getFilenameExtension(originalFilename);
        log.info("文件类型 = {}", filenameExtension);//jpg
        if (filenameExtension == null) {
            return R.error().setCode(208).setMessage("此文件没有文件扩展名");
        }
        fastDFSFile.setExt(filenameExtension);

        //新文件名称
        String fileName = UUID.randomUUID().toString().replace("-", "") + "." + filenameExtension;
        log.info("新文件名称 = {}", fileName);

        FastDfsFile fastDfsFile1 = FastDFSClient.upload(file, fastDFSFile);
        if (fastDfsFile1 != null) {
            fastDfsFileService.save(fastDfsFile1);
            Long id = fastDfsFileService.selectByFileId(fastDfsFile1.getFileId());
            fastDfsFile1.setId(id);
            return R.ok().setCode(200).setMessage("上传成功").data("fastDfsFile",fastDfsFile1);
        }
        return R.error().setCode(208).setMessage("上传失败");
    }

    @GetMapping("/getPageFastImg/{page}/{limit}")
    public R getPageFastImg(@PathVariable int page, @PathVariable int limit) {
        PageBean<FastDfsFile> pageBean = fastDfsFileService.findFastDfsFileByPage(page, limit);
        return R.ok().setCode(200).setMessage("查询成功").data("pageBean",pageBean);
    }
}

6.13.创建vue2项目

6.14.安装相关模块

npm install axios@1.5.0
npm install vue-axios
npm install vue-router@3.0.1
npm i element-ui -S

6.15.main.js

import App from './App.vue'
//引入Vue
import Vue from 'vue'
//引入axios
import axios from 'axios'
//引入VueAxios
//安装VueAxios模块后，不需要在每个组件中单独导入axios，只需将axios请求改为this.axios
import VueAxios from 'vue-axios'
//引入VueRouter
import VueRouter from 'vue-router'
//完整引入
//引入ElementUI组件库
import ElementUI from 'element-ui'
import 'element-ui/lib/theme-chalk/index.css'
//新建一个router文件夹，在文件夹下新建一个index.js文件
//引入路由器
import router from './router/index'

//把axios挂载到vue上
Vue.prototype.$axios = axios;
//使用Vue.use来注册安装插件
Vue.use(VueRouter)
Vue.use(router)
Vue.use(VueAxios, axios)
//使用ElementUI组件库
Vue.use(ElementUI)
//关闭Vue的生产提示
Vue.config.productionTip = false

// 创建和挂载根实例
new Vue({
    router, //将路由器注入到new Vue实例中，建立关联
    render: h => h(App), //将App组件放入容器中
    data: {
        // 空的实例放到根组件下，所有的子组件都能调用
        Bus: new Vue()
    }
}).$mount('#app');

6.16.src/router/index.js

//在路由文件router/index.js中配置
// 该文件专门用于创建整个应用的路由器
import VueRouter from "vue-router";

//引入组件
import fastdfsuploadimg from '../view/fastdfs/fastdfsuploadimg'//上传页
import fastdfsimg from "../view/fastdfs/fastdfsimg"

//创建路由
const routes = [
    //定义路由
    {
        path: '/',
        name: 'fastdfsuploadimg',
        component: fastdfsuploadimg
    },
    {
        path: '/fastdfsimg',
        name: 'fastdfsimg',
        component: fastdfsimg
    },
]

//创建并暴露一个路由器
const router = new VueRouter({
    mode: 'history',
    base: process.env.BASE_URL,
    routes
})

export default router

6.17.src/utils/request.js

import axios from 'axios'

// 创建axios实例
const service = axios.create({
  baseURL: 'http://localhost:9090', // api 的 base_url
  timeout: 1000000 // 请求超时时间
})

// http request 拦截器
// 请求拦截器
service.interceptors.request.use(
    config => {
        // 可以在这里添加请求头等信息
        return config;
    },
    error => {
        // 请求错误处理
        console.log(error);
        return Promise.reject(error);
    }
);

// http response 拦截器
// 响应拦截器
service.interceptors.response.use(
    response => {
        // 对响应数据做处理，例如只返回data部分
        const data = response.data;
        return data;
    },
    error => {
        // 响应错误处理
        console.log('err' + error); // for debug
        return Promise.reject(error);
    }
);

export default service;

6.18.src/api/fastdfs/fast.js

import request from "../../utils/request";

const api_name = '/fastDFSFile'

export default {
    //上传图片
    uploadImg() {
        return request({
            url: `${api_name}/upload`,
            method: 'post',
        })
    },
    getPageFastImg(page, limit) {
        return request({
            url: `${api_name}/getPageFastImg/${page}/${limit}`,
            method: 'get',
        })
    },
}

6.19.上传图片页面fastdfsuploadimg.vue

<template>
  <div>
    <h2>上传图片</h2>
    <el-form>
      <el-form-item>
        <el-upload
            list-type="picture-card"
            :multiple="false"
            :action="uploadUrl"
            :limit="1"
            :on-success="onUploadSuccessIdCard"
        >
          <i class="el-icon-plus"></i>
        </el-upload>
      </el-form-item>
    </el-form>
    <span v-if="dialogImageUrl != ''">图片地址：
      <a target="_blank" v-if="dialogImageUrl != ''" :href="dialogImageUrl">{{ dialogImageUrl }}</a>
    </span>
    <br/>
  </div>
</template>

<script>
export default {
  name: "UploadImg",
  data() {
    return {
      dialogImageUrl: "",
      file_id: "",
      dialogVisible: false,
      uploadUrl: "http://localhost:9090/fastDFSFile/upload", //文件上传地址
      datas: {},
    };
  },
  methods: {
    onUploadSuccessIdCard(response) {
      this.file_id = response.data.fastDfsFile.fileId;
      this.datas = response.fastDfsFile.data;
      this.dialogImageUrl = "http://192.168.229.141/" + response.data.fastDfsFile.filePath;
    },
  },
};
</script>

<style scoped>
</style>

6.20.图片管理页面fastdfsimg.vue

<template>
  <div>
    <h2>图片管理</h2>
    <!--图片列表-->
    <el-table
        size="small"
        style="margin: 30px;"
        empty-text="无数据"
        :data="imgList"
        highlight-current-row v-loading="loading" border element-loading-text="拼命加载中">
      <el-table-column align="center" sortable prop="filePath" label="文件路径" width="450"></el-table-column>
      <el-table-column align="center" sortable prop="fileSize" label="文件大小" width="100"></el-table-column>
      <el-table-column align="center" sortable prop="fileName" label="文件名" width="130"></el-table-column>
      <el-table-column align="center" sortable prop="ext" label="扩展名" width="100"></el-table-column>
      <el-table-column align="center" sortable prop="fileType" label="文件类型" width="100"></el-table-column>
      <el-table-column align="center" sortable prop="filePath" label="预览图片" width="100">
        <template slot-scope="scope">
          <img :src="getImageUrl(scope.row.filePath)" style="max-width: 100px;max-height: 100px" alt="图标"/>
        </template>
      </el-table-column>
    </el-table>

    <!-- 分页 -->
    <el-pagination class="pagination" style="text-align: center;margin-top: 50px"
                   layout="prev, pager, next"
                   :current-page="page"
                   :total="total"
                   :page-size="limit">
    </el-pagination>
  </div>
</template>

<script>
import fastApi from "@/api/fastdfs/fast";

export default {
  name: "FastdfsImg",
  data() {
    return {
      total: 0, // 数据库中的总记录数
      page: 1, // 默认页码
      limit: 5, // 每页记录数
      imgList: {},
      baseImagePath: 'http://192.168.229.141/', // 图片的基础路径
    }
  },
  created() {
    this.init()
  },
  methods: {
    init() {
      fastApi.getPageFastImg(this.page, this.limit).then(response => {
        this.imgList = response.data.pageBean.lists
        this.total = response.data.pageBean.totalCount
      })
    },

    getImageUrl(filePath) {
      return `${this.baseImagePath}${filePath}`; // 拼接图片路径
    },

  },
}
</script>

<style scoped>

</style>

6.21.效果演示

endl