黑马头条微服务学习day02-app端文章查看，静态化freemarker,分布式文件系统MinlO

Jimmy Ding2024-07-19 8:59

文章目录

app端文章列表

需求分析






实现思路



实现步骤

ArticleHomeDto

java 复制代码 
package com.heima.model.article.dtos;

import lombok.Data;

import java.util.Date;

@Data
public class ArticleHomeDto {

    // 最大时间
    Date maxBehotTime;
    // 最小时间
    Date minBehotTime;
    // 分页size
    Integer size;
    // 频道ID
    String tag;
}

导入heima-leadnews-article微服务

注意：需要在heima-leadnews-service的pom文件夹中添加子模块信息，如下：

xml 复制代码 
<modules>
    <module>heima-leadnews-user</module>
    <module>heima-leadnews-article</module>
</modules>

在idea中的maven中更新一下，如果工程还是灰色的，需要在重新添加文章微服务的pom文件，操作步骤如下：

需要在nacos中添加对应的配置

yaml 复制代码 
spring:
  datasource:
    driver-class-name: com.mysql.jdbc.Driver
    url: jdbc:mysql://localhost:3306/leadnews_article?useUnicode=true&characterEncoding=UTF-8&serverTimezone=UTC
    username: root
    password: root
# 设置Mapper接口所对应的XML文件位置，如果你在Mapper接口中有自定义方法，需要进行该配置
mybatis-plus:
  mapper-locations: classpath*:mapper/*.xml
  # 设置别名包扫描路径，通过该属性可以给包中的类注册别名
  type-aliases-package: com.heima.model.article.pojos

定义接口

java 复制代码 
package com.heima.article.controller.v1;

import com.heima.model.article.dtos.ArticleHomeDto;
import com.heima.model.common.dtos.ResponseResult;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

@RestController
@RequestMapping("/api/v1/article")
public class ArticleHomeController {


    @PostMapping("/load")
    public ResponseResult load(@RequestBody ArticleHomeDto dto) {
        return null;
    }

    @PostMapping("/loadmore")
    public ResponseResult loadMore(@RequestBody ArticleHomeDto dto) {
        return null;
    }

    @PostMapping("/loadnew")
    public ResponseResult loadNew(@RequestBody ArticleHomeDto dto) {
        return null;
    }
}
编写mapper文件
java 复制代码 
package com.heima.article.mapper;

import com.baomidou.mybatisplus.core.mapper.BaseMapper;
import com.heima.model.article.dtos.ArticleHomeDto;
import com.heima.model.article.pojos.ApArticle;
import org.apache.ibatis.annotations.Mapper;
import org.apache.ibatis.annotations.Param;

import java.util.List;

@Mapper
public interface ApArticleMapper extends BaseMapper<ApArticle> {

    public List<ApArticle> loadArticleList(@Param("dto") ArticleHomeDto dto, @Param("type") Short type);

}

对应的映射文件

在resources中新建mapper/ApArticleMapper.xml 如下配置：

xml 复制代码 
<?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.heima.article.mapper.ApArticleMapper">

    <resultMap id="resultMap" type="com.heima.model.article.pojos.ApArticle">
        <id column="id" property="id"/>
        <result column="title" property="title"/>
        <result column="author_id" property="authorId"/>
        <result column="author_name" property="authorName"/>
        <result column="channel_id" property="channelId"/>
        <result column="channel_name" property="channelName"/>
        <result column="layout" property="layout"/>
        <result column="flag" property="flag"/>
        <result column="images" property="images"/>
        <result column="labels" property="labels"/>
        <result column="likes" property="likes"/>
        <result column="collection" property="collection"/>
        <result column="comment" property="comment"/>
        <result column="views" property="views"/>
        <result column="province_id" property="provinceId"/>
        <result column="city_id" property="cityId"/>
        <result column="county_id" property="countyId"/>
        <result column="created_time" property="createdTime"/>
        <result column="publish_time" property="publishTime"/>
        <result column="sync_status" property="syncStatus"/>
        <result column="static_url" property="staticUrl"/>
    </resultMap>
    <select id="loadArticleList" resultMap="resultMap">
        SELECT
        aa.*
        FROM
        `ap_article` aa
        LEFT JOIN ap_article_config aac ON aa.id = aac.article_id
        <where>
            and aac.is_delete != 1
            and aac.is_down != 1
            <!-- loadmore -->
            <if test="type != null and type == 1">
                and aa.publish_time <![CDATA[<]]> #{dto.minBehotTime}
            </if>
            <if test="type != null and type == 2">
                and aa.publish_time <![CDATA[>]]> #{dto.maxBehotTime}
            </if>
            <if test="dto.tag != '__all__'">
                and aa.channel_id = #{dto.tag}
            </if>
        </where>
        order by aa.publish_time desc
        limit #{dto.size}
    </select>

</mapper>

编写业务层代码

java 复制代码 
package com.heima.article.service;

import com.baomidou.mybatisplus.extension.service.IService;
import com.heima.model.article.dtos.ArticleHomeDto;
import com.heima.model.article.pojos.ApArticle;
import com.heima.model.common.dtos.ResponseResult;

import java.io.IOException;

public interface ApArticleService extends IService<ApArticle> {

    /**
     * 根据参数加载文章列表
     * @param loadtype 1为加载更多  2为加载最新
     * @param dto
     * @return
     */
    ResponseResult load(Short loadtype, ArticleHomeDto dto);

}

实现类：

java 复制代码 
package com.heima.article.service.impl;

import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.heima.article.mapper.ApArticleMapper;
import com.heima.article.service.ApArticleService;
import com.heima.common.constants.ArticleConstants;
import com.heima.model.article.dtos.ArticleHomeDto;

import com.heima.model.article.pojos.ApArticle;
import com.heima.model.common.dtos.ResponseResult;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang3.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import java.util.Date;
import java.util.List;


@Service
@Transactional
@Slf4j
public class ApArticleServiceImpl  extends ServiceImpl<ApArticleMapper, ApArticle> implements ApArticleService {

    // 单页最大加载的数字
    private final static short MAX_PAGE_SIZE = 50;

    @Autowired
    private ApArticleMapper apArticleMapper;

    /**
     * 根据参数加载文章列表
     * @param loadtype 1为加载更多  2为加载最新
     * @param dto
     * @return
     */
    @Override
    public ResponseResult load(Short loadtype, ArticleHomeDto dto) {
        //1.校验参数
        Integer size = dto.getSize();
        if(size == null || size == 0){
            size = 10;
        }
        size = Math.min(size,MAX_PAGE_SIZE);
        dto.setSize(size);

        //类型参数检验
        if(!loadtype.equals(ArticleConstants.LOADTYPE_LOAD_MORE)&&!loadtype.equals(ArticleConstants.LOADTYPE_LOAD_NEW)){
            loadtype = ArticleConstants.LOADTYPE_LOAD_MORE;
        }
        //文章频道校验
        if(StringUtils.isEmpty(dto.getTag())){
            dto.setTag(ArticleConstants.DEFAULT_TAG);
        }

        //时间校验
        if(dto.getMaxBehotTime() == null) dto.setMaxBehotTime(new Date());
        if(dto.getMinBehotTime() == null) dto.setMinBehotTime(new Date());
        //2.查询数据
        List<ApArticle> apArticles = apArticleMapper.loadArticleList(dto, loadtype);

        //3.结果封装
        ResponseResult responseResult = ResponseResult.okResult(apArticles);
        return responseResult;
    }
    
}

定义常量类

java 复制代码 
package com.heima.common.constants;

public class ArticleConstants {
    public static final Short LOADTYPE_LOAD_MORE = 1;
    public static final Short LOADTYPE_LOAD_NEW = 2;
    public static final String DEFAULT_TAG = "__all__";

}
编写控制器代码
java 复制代码 
package com.heima.article.controller.v1;

import com.heima.article.service.ApArticleService;
import com.heima.common.constants.ArticleConstants;
import com.heima.model.article.dtos.ArticleHomeDto;
import com.heima.model.common.dtos.ResponseResult;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

@RestController
@RequestMapping("/api/v1/article")
public class ArticleHomeController {


    @Autowired
    private ApArticleService apArticleService;

    @PostMapping("/load")
    public ResponseResult load(@RequestBody ArticleHomeDto dto) {
        return apArticleService.load(ArticleConstants.LOADTYPE_LOAD_MORE,dto);
    }

    @PostMapping("/loadmore")
    public ResponseResult loadMore(@RequestBody ArticleHomeDto dto) {
        return apArticleService.load(ArticleConstants.LOADTYPE_LOAD_MORE,dto);
    }

    @PostMapping("/loadnew")
    public ResponseResult loadNew(@RequestBody ArticleHomeDto dto) {
        return apArticleService.load(ArticleConstants.LOADTYPE_LOAD_NEW,dto);
    }
}

页面展示

文章详情

实现思路



Freemarker





创建一个freemarker-demo 的测试工程专门用于freemarker的功能测试与模板的测试。

pom.xml如下

xml 复制代码 
<?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 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <parent>
        <artifactId>heima-leadnews-test</artifactId>
        <groupId>com.heima</groupId>
        <version>1.0-SNAPSHOT</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>

    <artifactId>freemarker-demo</artifactId>

    <properties>
        <maven.compiler.source>8</maven.compiler.source>
        <maven.compiler.target>8</maven.compiler.target>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-freemarker</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
        </dependency>
        <!-- lombok -->
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
        </dependency>

        <!-- apache 对 java io 的封装工具库 -->
        <dependency>
            <groupId>org.apache.commons</groupId>
            <artifactId>commons-io</artifactId>
            <version>1.3.2</version>
        </dependency>
    </dependencies>

</project>

在freemarker的测试工程下创建模型类型用于测试

java 复制代码 
package com.heima.freemarker.entity;

import lombok.Data;

import java.util.Date;

@Data
public class Student {
    private String name;//姓名
    private int age;//年龄
    private Date birthday;//生日
    private Float money;//钱包
}

在resources下创建templates，此目录为freemarker的默认模板存放目录。

在templates下创建模板文件 01-basic.ftl ，模板中的插值表达式最终会被freemarker替换成具体的数据。

html 复制代码 
<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8">
    <title>Hello World!</title>
</head>
<body>
<b>普通文本 String 展示：</b><br><br>
Hello ${name} <br>
<hr>
<b>对象Student中的数据展示：</b><br/>
姓名：${stu.name}<br/>
年龄：${stu.age}
<hr>
</body>
</html>

创建Controller类，向Map中添加name，最后返回模板文件。

java 复制代码 
package com.xuecheng.test.freemarker.controller;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.client.RestTemplate;

import java.util.Map;

@Controller
public class HelloController {

    @GetMapping("/basic")
    public String test(Model model) {


        //1.纯文本形式的参数
        model.addAttribute("name", "freemarker");
        //2.实体类相关的参数
        
        Student student = new Student();
        student.setName("小明");
        student.setAge(18);
        model.addAttribute("stu", student);

        return "01-basic";
    }
}

01-basic.ftl，使用插值表达式填充数据

html 复制代码 
<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8">
    <title>Hello World!</title>
</head>
<body>
<b>普通文本 String 展示：</b><br><br>
Hello ${name} <br>
<hr>
<b>对象Student中的数据展示：</b><br/>
姓名：${stu.name}<br/>
年龄：${stu.age}
<hr>
</body>
</html>

创建启动类

java 复制代码 
package com.heima.freemarker;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

@SpringBootApplication
public class FreemarkerDemotApplication {
    public static void main(String[] args) {
        SpringApplication.run(FreemarkerDemotApplication.class,args);
    }
}

minIO



我们提供的镜像中已经有minio的环境

我们可以使用docker进行环境部署和启动

java 复制代码 
docker run -p 9000:9000 -p 9001:9001 --name minio -d --restart=always \ 
  -e "MINIO_ROOT_USER=minio" \
  -e "MINIO_ROOT_PASSWORD=minio123" \
  -v /home/data:/data \
  -v /home/config:/root/.minio \
  minio/minio server /data --console-address ":9001"




导入pom依赖

创建minio-demo,对应pom如下

xml 复制代码 
<?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 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <parent>
        <artifactId>heima-leadnews-test</artifactId>
        <groupId>com.heima</groupId>
        <version>1.0-SNAPSHOT</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>

    <artifactId>minio-demo</artifactId>

    <properties>
        <maven.compiler.source>8</maven.compiler.source>
        <maven.compiler.target>8</maven.compiler.target>
    </properties>

    <dependencies>

        <dependency>
            <groupId>io.minio</groupId>
            <artifactId>minio</artifactId>
            <version>7.1.0</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
        </dependency>
    </dependencies>

</project>

引导类：

java 复制代码 
package com.heima.minio;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;


@SpringBootApplication
public class MinIOApplication {

    public static void main(String[] args) {
        SpringApplication.run(MinIOApplication.class,args);
    }
}

创建测试类，上传html文件

java 复制代码 
package com.heima.minio.test;

import io.minio.MinioClient;
import io.minio.PutObjectArgs;

import java.io.FileInputStream;

public class MinIOTest {


    public static void main(String[] args) {

        FileInputStream fileInputStream = null;
        try {

            fileInputStream =  new FileInputStream("D:\\list.html");;

            //1.创建minio链接客户端
            MinioClient minioClient = MinioClient.builder().credentials("minio", "minio123").endpoint("http://192.168.200.130:9000").build();
            //2.上传
            PutObjectArgs putObjectArgs = PutObjectArgs.builder()
                    .object("list.html")//文件名
                    .contentType("text/html")//文件类型
                    .bucket("leadnews")//桶名词  与minio创建的名词一致
                    .stream(fileInputStream, fileInputStream.available(), -1) //文件流
                    .build();
            minioClient.putObject(putObjectArgs);

            System.out.println("http://192.168.200.130:9000/leadnews/ak47.jpg");

        } catch (Exception ex) {
            ex.printStackTrace();
        }
    }

}


创建模块heima-file-starter

导入依赖

xml 复制代码 
<dependencies>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-autoconfigure</artifactId>
    </dependency>
    <dependency>
        <groupId>io.minio</groupId>
        <artifactId>minio</artifactId>
        <version>7.1.0</version>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-configuration-processor</artifactId>
        <optional>true</optional>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-actuator</artifactId>
    </dependency>
</dependencies>

配置类

MinIOConfigProperties

java 复制代码 
package com.heima.file.config;


import lombok.Data;
import org.springframework.boot.context.properties.ConfigurationProperties;

import java.io.Serializable;

@Data
@ConfigurationProperties(prefix = "minio")  // 文件上传 配置前缀file.oss
public class MinIOConfigProperties implements Serializable {

    private String accessKey;
    private String secretKey;
    private String bucket;
    private String endpoint;
    private String readPath;
}

MinIOConfig

java 复制代码 
package com.heima.file.config;

import com.heima.file.service.FileStorageService;
import io.minio.MinioClient;
import lombok.Data;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
import org.springframework.boot.context.properties.EnableConfigurationProperties;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;


@Data
@Configuration
@EnableConfigurationProperties({MinIOConfigProperties.class})
//当引入FileStorageService接口时
@ConditionalOnClass(FileStorageService.class)
public class MinIOConfig {

   @Autowired
   private MinIOConfigProperties minIOConfigProperties;

    @Bean
    public MinioClient buildMinioClient(){
        return MinioClient
                .builder()
                .credentials(minIOConfigProperties.getAccessKey(), minIOConfigProperties.getSecretKey())
                .endpoint(minIOConfigProperties.getEndpoint())
                .build();
    }
}

封装操作minIO类

FileStorageService

java 复制代码 
package com.heima.file.service;

import java.io.InputStream;

/**
 * @author itheima
 */
public interface FileStorageService {


    /**
     *  上传图片文件
     * @param prefix  文件前缀
     * @param filename  文件名
     * @param inputStream 文件流
     * @return  文件全路径
     */
    public String uploadImgFile(String prefix, String filename,InputStream inputStream);

    /**
     *  上传html文件
     * @param prefix  文件前缀
     * @param filename   文件名
     * @param inputStream  文件流
     * @return  文件全路径
     */
    public String uploadHtmlFile(String prefix, String filename,InputStream inputStream);

    /**
     * 删除文件
     * @param pathUrl  文件全路径
     */
    public void delete(String pathUrl);

    /**
     * 下载文件
     * @param pathUrl  文件全路径
     * @return
     *
     */
    public byte[]  downLoadFile(String pathUrl);

}

MinIOFileStorageService

java 复制代码 
package com.heima.file.service.impl;


import com.heima.file.config.MinIOConfig;
import com.heima.file.config.MinIOConfigProperties;
import com.heima.file.service.FileStorageService;
import io.minio.GetObjectArgs;
import io.minio.MinioClient;
import io.minio.PutObjectArgs;
import io.minio.RemoveObjectArgs;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.context.properties.EnableConfigurationProperties;
import org.springframework.context.annotation.Import;
import org.springframework.util.StringUtils;

import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.text.SimpleDateFormat;
import java.util.Date;

@Slf4j
@EnableConfigurationProperties(MinIOConfigProperties.class)
@Import(MinIOConfig.class)
public class MinIOFileStorageService implements FileStorageService {

    @Autowired
    private MinioClient minioClient;

    @Autowired
    private MinIOConfigProperties minIOConfigProperties;

    private final static String separator = "/";

    /**
     * @param dirPath
     * @param filename  yyyy/mm/dd/file.jpg
     * @return
     */
    public String builderFilePath(String dirPath,String filename) {
        StringBuilder stringBuilder = new StringBuilder(50);
        if(!StringUtils.isEmpty(dirPath)){
            stringBuilder.append(dirPath).append(separator);
        }
        SimpleDateFormat sdf = new SimpleDateFormat("yyyy/MM/dd");
        String todayStr = sdf.format(new Date());
        stringBuilder.append(todayStr).append(separator);
        stringBuilder.append(filename);
        return stringBuilder.toString();
    }

    /**
     *  上传图片文件
     * @param prefix  文件前缀
     * @param filename  文件名
     * @param inputStream 文件流
     * @return  文件全路径
     */
    @Override
    public String uploadImgFile(String prefix, String filename,InputStream inputStream) {
        String filePath = builderFilePath(prefix, filename);
        try {
            PutObjectArgs putObjectArgs = PutObjectArgs.builder()
                    .object(filePath)
                    .contentType("image/jpg")
                    .bucket(minIOConfigProperties.getBucket()).stream(inputStream,inputStream.available(),-1)
                    .build();
            minioClient.putObject(putObjectArgs);
            StringBuilder urlPath = new StringBuilder(minIOConfigProperties.getReadPath());
            urlPath.append(separator+minIOConfigProperties.getBucket());
            urlPath.append(separator);
            urlPath.append(filePath);
            return urlPath.toString();
        }catch (Exception ex){
            log.error("minio put file error.",ex);
            throw new RuntimeException("上传文件失败");
        }
    }

    /**
     *  上传html文件
     * @param prefix  文件前缀
     * @param filename   文件名
     * @param inputStream  文件流
     * @return  文件全路径
     */
    @Override
    public String uploadHtmlFile(String prefix, String filename,InputStream inputStream) {
        String filePath = builderFilePath(prefix, filename);
        try {
            PutObjectArgs putObjectArgs = PutObjectArgs.builder()
                    .object(filePath)
                    .contentType("text/html")
                    .bucket(minIOConfigProperties.getBucket()).stream(inputStream,inputStream.available(),-1)
                    .build();
            minioClient.putObject(putObjectArgs);
            StringBuilder urlPath = new StringBuilder(minIOConfigProperties.getReadPath());
            urlPath.append(separator+minIOConfigProperties.getBucket());
            urlPath.append(separator);
            urlPath.append(filePath);
            return urlPath.toString();
        }catch (Exception ex){
            log.error("minio put file error.",ex);
            ex.printStackTrace();
            throw new RuntimeException("上传文件失败");
        }
    }

    /**
     * 删除文件
     * @param pathUrl  文件全路径
     */
    @Override
    public void delete(String pathUrl) {
        String key = pathUrl.replace(minIOConfigProperties.getEndpoint()+"/","");
        int index = key.indexOf(separator);
        String bucket = key.substring(0,index);
        String filePath = key.substring(index+1);
        // 删除Objects
        RemoveObjectArgs removeObjectArgs = RemoveObjectArgs.builder().bucket(bucket).object(filePath).build();
        try {
            minioClient.removeObject(removeObjectArgs);
        } catch (Exception e) {
            log.error("minio remove file error.  pathUrl:{}",pathUrl);
            e.printStackTrace();
        }
    }


    /**
     * 下载文件
     * @param pathUrl  文件全路径
     * @return  文件流
     *
     */
    @Override
    public byte[] downLoadFile(String pathUrl)  {
        String key = pathUrl.replace(minIOConfigProperties.getEndpoint()+"/","");
        int index = key.indexOf(separator);
        String bucket = key.substring(0,index);
        String filePath = key.substring(index+1);
        InputStream inputStream = null;
        try {
            inputStream = minioClient.getObject(GetObjectArgs.builder().bucket(minIOConfigProperties.getBucket()).object(filePath).build());
        } catch (Exception e) {
            log.error("minio down file error.  pathUrl:{}",pathUrl);
            e.printStackTrace();
        }

        ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
        byte[] buff = new byte[100];
        int rc = 0;
        while (true) {
            try {
                if (!((rc = inputStream.read(buff, 0, 100)) > 0)) break;
            } catch (IOException e) {
                e.printStackTrace();
            }
            byteArrayOutputStream.write(buff, 0, rc);
        }
        return byteArrayOutputStream.toByteArray();
    }
}

对外加入自动配置

在resources中新建META-INF/spring.factories

java 复制代码 
org.springframework.boot.autoconfigure.EnableAutoConfiguration=\
  com.heima.file.service.impl.MinIOFileStorageService

其他微服务使用

第一，导入heima-file-starter的依赖

第二，在微服务中添加minio所需要的配置

yaml 复制代码 
minio:
  accessKey: minio
  secretKey: minio123
  bucket: leadnews
  endpoint: http://192.168.200.130:9000
  readPath: http://192.168.200.130:9000

第三，在对应使用的业务类中注入FileStorageService，样例如下：

java 复制代码 
package com.heima.minio.test;


import com.heima.file.service.FileStorageService;
import com.heima.minio.MinioApplication;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.test.context.junit4.SpringRunner;

import java.io.FileInputStream;
import java.io.FileNotFoundException;

@SpringBootTest(classes = MinioApplication.class)
@RunWith(SpringRunner.class)
public class MinioTest {

    @Autowired
    private FileStorageService fileStorageService;

    @Test
    public void testUpdateImgFile() {
        try {
            FileInputStream fileInputStream = new FileInputStream("E:\\tmp\\ak47.jpg");
            String filePath = fileStorageService.uploadImgFile("", "ak47.jpg", fileInputStream);
            System.out.println(filePath);
        } catch (FileNotFoundException e) {
            e.printStackTrace();
        }
    }
}




在文章微服务中导入依赖

xml 复制代码 
<dependencies>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-freemarker</artifactId>
    </dependency>
    <dependency>
        <groupId>com.heima</groupId>
        <artifactId>heima-file-starter</artifactId>
        <version>1.0-SNAPSHOT</version>
    </dependency>
</dependencies>

新建ApArticleContentMapper

java 复制代码 
package com.heima.article.mapper;

import com.baomidou.mybatisplus.core.mapper.BaseMapper;
import com.heima.model.article.pojos.ApArticleContent;
import org.apache.ibatis.annotations.Mapper;

@Mapper
public interface ApArticleContentMapper extends BaseMapper<ApArticleContent> {
}

6.在artile微服务中新增测试类（后期新增文章的时候创建详情静态页，目前暂时手动生成）

java 复制代码 
package com.heima.article.test;


import com.alibaba.fastjson.JSONArray;
import com.baomidou.mybatisplus.core.toolkit.Wrappers;
import com.heima.article.ArticleApplication;
import com.heima.article.mapper.ApArticleContentMapper;
import com.heima.article.mapper.ApArticleMapper;
import com.heima.file.service.FileStorageService;
import com.heima.model.article.pojos.ApArticle;
import com.heima.model.article.pojos.ApArticleContent;
import freemarker.template.Configuration;
import freemarker.template.Template;
import org.apache.commons.lang3.StringUtils;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.test.context.junit4.SpringRunner;

import java.io.ByteArrayInputStream;
import java.io.InputStream;
import java.io.StringWriter;
import java.util.HashMap;
import java.util.Map;

@SpringBootTest(classes = ArticleApplication.class)
@RunWith(SpringRunner.class)
public class ArticleFreemarkerTest {

    @Autowired
    private Configuration configuration;

    @Autowired
    private FileStorageService fileStorageService;


    @Autowired
    private ApArticleMapper apArticleMapper;

    @Autowired
    private ApArticleContentMapper apArticleContentMapper;

    @Test
    public void createStaticUrlTest() throws Exception {
        //1.获取文章内容
        ApArticleContent apArticleContent = apArticleContentMapper.selectOne(Wrappers.<ApArticleContent>lambdaQuery().eq(ApArticleContent::getArticleId, 1390536764510310401L));
        if(apArticleContent != null && StringUtils.isNotBlank(apArticleContent.getContent())){
            //2.文章内容通过freemarker生成html文件
            StringWriter out = new StringWriter();
            Template template = configuration.getTemplate("article.ftl");

            Map<String, Object> params = new HashMap<>();
            params.put("content", JSONArray.parseArray(apArticleContent.getContent()));

            template.process(params, out);
            InputStream is = new ByteArrayInputStream(out.toString().getBytes());

            //3.把html文件上传到minio中
            String path = fileStorageService.uploadHtmlFile("", apArticleContent.getArticleId() + ".html", is);

            //4.修改ap_article表，保存static_url字段
            ApArticle article = new ApArticle();
            article.setId(apArticleContent.getArticleId());
            article.setStaticUrl(path);
            apArticleMapper.updateById(article);

        }
    }
}
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