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day4学习内容

自媒体文章自动审核

今日内容

1 自媒体文章自动审核

1.1 审核流程

1.2 内容安全第三方接口

1.3 引入阿里云内容安全接口

1.3.1 添加依赖

在heima-leadnews-common包下引入依赖

<dependency><groupId>com.aliyun</groupId><artifactId>aliyun-java-sdk-core</artifactId><version>4.1.1</version>
</dependency>
<dependency><groupId>com.aliyun</groupId><artifactId>aliyun-java-sdk-green</artifactId><version>3.6.6</version>
</dependency>
<dependency><groupId>com.alibaba.fastjson2</groupId><artifactId>fastjson2</artifactId><version>2.0.9</version>
</dependency>
<dependency><groupId>com.aliyun.oss</groupId><artifactId>aliyun-sdk-oss</artifactId><version>2.8.3</version>
</dependency>

1.3.2 导入aliyun模块

放入heima-leadnews-common模块下的com.heima.common

哪个微服务使用，就在哪个微服务的nacos中配置

在heima-leadnews-wemedia中的nacos配置中心添加以下配置：

aliyun:accessKeyId: LTAI5tCWHCcfvqQzu8k2oKmXsecret: auoKUFsghimbfVQHpy7gtRyBkoR4vc
#aliyun.scenes=porn,terrorism,ad,qrcode,live,logoscenes: terrorism

1.3.3 注入Bean测试

在resource中META-INF的spring-factories中自动配置

org.springframework.boot.autoconfigure.EnableAutoConfiguration=\com.heima.common.exception.ExceptionCatch,\com.heima.common.aliyun.GreenTextScan,\com.heima.common.aliyun.GreenImageScan

在测试类中进行测试

@SpringBootTest(classes = WemediaApplication.class)
@RunWith(SpringRunner.class)
public class AliyunTest {@Autowiredprivate GreenTextScan greenTextScan;@Autowiredprivate GreenImageScan greenImageScan;@Autowiredprivate FileStorageService fileStorageService;@Testpublic void testScanText() throws Exception {Map map = greenTextScan.greeTextScan("我是一个好人,冰毒");System.out.println(map);}@Testpublic void testScanImage() throws Exception {byte[] bytes = fileStorageService.downLoadFile("http://192.168.200.130:9000/leadnews/2021/04/26/ef3cbe458db249f7bd6fb4339e593e55.jpg");Map map = greenImageScan.imageScan(Arrays.asList(bytes));System.out.println(map);}
}

2 app端文章保存接口

2.1 表结构说明

2.2 分布式id

2.2.1 分布式id-技术选型

2.2.2 雪花算法

2.2.3 配置雪花算法

第一：在实体类中的id上加入如下配置，指定类型为id_worker

@TableId(value = "id",type = IdType.ID_WORKER)
private Long id;

第二：在application.yml文件中配置数据中心id和机器id

在文章的微服务的nacos配置中leadnews-article中添加

spring:datasource:driver-class-name: com.mysql.jdbc.Driverurl: jdbc:mysql://localhost:3306/leadnews_article?useUnicode=true&characterEncoding=UTF-8&serverTimezone=UTC&useSSL=falseusername: rootpassword: 123sjbsjb# 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#雪花算法global-config:datacenter-id: 1workerId: 1
minio:accessKey: miniosecretKey: minio123bucket: leadnewsendpoint: http://192.168.204.129:9000readPath: http://192.168.204.129:9000

2.3 保存app端文章-思路分析

2.4 实现接口

2.4.1 实现步骤

2.4.2 定义feign接口

2.4.2.1 导入feign远程调用依赖

在heima-leadnews-feign-api的pom.xml中导入依赖

<dependency><groupId>org.springframework.cloud</groupId><artifactId>spring-cloud-starter-openfeign</artifactId>
</dependency>

2.4.2.2 定义文章端远程接口

heima-leadnews-feign-api定义com.heima.apis.article.IArticleClient接口

@FeignClient(value = "leadnews-article")

@FeignClient指定文章远程调用接口名称

@FeignClient(value = "leadnews-article")
public interface IArticleClient {@PostMapping("/api/v1/article/save")public ResponseResult saveArticle(@RequestBody ArticleDto dto) ;
}

2.4.2.3 导入ArticleDto

在heima-leadnews-model模块下com.heima.model.article.dto中导入ArticleDto类

@Data
public class ArticleDto  extends ApArticle {/*** 文章内容*/private String content;
}

2.4.3 实现feign接口

在heima-leadnews-service模块下的heima-leadnews-article模块下创建com.heima.article.feign.ArticleClient类

@RestController
public class ArticleClient implements IArticleClient {@Autowiredprivate ApArticleService apArticleService;@PostMapping("/api/v1/article/save")@Overridepublic ResponseResult saveArticle(@RequestBody ArticleDto dto) {return apArticleService.saveArticle(dto);}
}

2.4.4 创建mapper

在heima-leadnews-service模块下的heima-leadnews-article模块下创建com.heima.article.mapper.ApArticleConfigMapper接口

@Mapper
public interface ApArticleConfigMapper extends BaseMapper<ApArticleConfig> {
}

2.4.5 为AparticleConfig设置默认参数

添加@NoArgsConstructor

public ApArticleConfig(Long articleId) {this.articleId = articleId;this.isDelete = false;this.isDown = false;this.isForward = true;this.isComment = true;
}

添加有参构造

2.4.6 在ApArticleService的实现类ApArticleServiceImpl中实现方法

ApArticleService接口

public interface ApArticleService extends IService<ApArticle>{/*** 加载文章列表* @param dto* @param type 1 加载更多 2 加载最新* @return*/public ResponseResult load(ArticleHomeDto dto, Short type);/*** 保存文章* @param dto* @return*/public ResponseResult saveArticle(ArticleHomeDto dto);
}

实现类，实现saveArticle方法

@Autowired
private ApArticleConfigMapper apArticleConfigMapper;
@Autowired
private ApArticleContentMapper apArticleContentMapper;
/*** 保存文章* @param dto* @return*/
@Override
public ResponseResult saveArticle(ArticleDto dto) {//1.参数检查if(dto == null){return ResponseResult.errorResult(AppHttpCodeEnum.PARAM_INVALID);}ApArticle apArticle = new ApArticle();//org.springframework.beansBeanUtils.copyProperties(dto, apArticle);//2.判断是否存在idif(dto.getId() == null) {//2.1 不存在id ，新增 文章、内容、配置save(apArticle);//2.1.2 保存文章配置ApArticleConfig apArticleConfig = new ApArticleConfig(apArticle.getId());apArticleConfigMapper.insert(apArticleConfig);//2.1.3 保存文章内容ApArticleContent apArticleContent = new ApArticleContent();apArticleContent.setArticleId(apArticle.getId());apArticleContent.setContent(dto.getContent());apArticleContentMapper.insert(apArticleContent);}else {//2.2 存在id，更新 文章、内容//2.2.1 更新文章updateById(apArticle);//2.2.2 更新文章内容ApArticleContent apArticleContent = apArticleContentMapper.selectOne(Wrappers.<ApArticleContent>lambdaQuery().eq(ApArticleContent::getArticleId, dto.getId()));apArticleContent.setContent(dto.getContent());apArticleContentMapper.updateById(apArticleContent);}//3.返回结果 文章的idreturn ResponseResult.okResult(apArticle.getId());
}

2.4.7 启动ArticleApplication

刚刚是新增，如果是修改。

就会在json中传入id

成功修改

3 自媒体文章审核实现

3.1 创建审核接口

在heima-leadnews-service中heima-leadnews-wemedia中的service新增WmNewAutoScanService接口

public interface WmNewAutoScanService {/*** 自动审核媒体文章*/public void  autoScanMediaNews(Integer id);
}

3.2 实现审核接口

@Service
@Slf4j
@Transactional
public class WmNewAutoScanServiceImpl implements WmNewAutoScanService {@Autowiredprivate WmNewsMapper wmNewsMapper;@Qualifier("com.heima.apis.article.IArticleClient")@Autowiredprivate IArticleClient iArticleClient;@Autowiredprivate WmChannelMapper wmChannelMapper;@Autowiredprivate WmUserMapper wmUserMapper;@Overridepublic void autoScanMediaNews(Integer id) {//1.查询自媒体文章WmNews wmNews = wmNewsMapper.selectById(id);if (wmNews == null) {throw new RuntimeException("自媒体文章不存在");}if(wmNews.getStatus().equals(WmNews.Status.SUBMIT.getCode())){Map<String,List<String>> scanMaterialsList = extractImageAndContent(wmNews);//2.调用阿里云接口审核文本内容List<String> contentTexts =scanMaterialsList.get("contentTexts");boolean isTextScan =true;if(!isTextScan)return;//3.调用阿里云接口审核图片内容List<String> imagesUrls =scanMaterialsList.get("imagesUrls");boolean isImageScan =true;if(!isImageScan)return;if(isTextScan && isImageScan) {//审核通过wmNews.setStatus((short) 9);wmNews.setReason("审核通过");}}//4.审核成功保存app端的相关文章数据ArticleDto dto=new ArticleDto();BeanUtils.copyProperties(wmNews,dto);//布局dto.setLayout(wmNews.getType());//频道dto.setChannelId(wmNews.getChannelId());//频道名称WmChannel wmChannel = wmChannelMapper.selectById(wmNews.getChannelId());if(wmChannel!=null){dto.setChannelName(wmChannel.getName());}//作者dto.setAuthorId(Long.valueOf(wmNews.getUserId()));//作者名称WmUser wmUser= wmUserMapper.selectById(wmNews.getUserId());if(wmUser!=null){dto.setAuthorName(wmUser.getName());}//设置文章idif(wmNews.getArticleId()!=null){dto.setId(wmNews.getArticleId());}dto.setCreatedTime(new Date());ResponseResult responseResult = iArticleClient.saveArticle(dto);if(responseResult.getCode().equals(200)){//保存成功wmNews.setArticleId((Long)responseResult.getData());wmNewsMapper.updateById(wmNews);}else{//保存失败throw new RuntimeException("保存app端文章失败");}}private Map<String,List<String>> extractImageAndContent(WmNews wmNews) {//提取文章内容String content = wmNews.getContent();List<String> imagesUrls =new ArrayList<>();List<String> contentTexts =new ArrayList<>();Map<String,List<String>> scanMaterialsList =new HashMap<>();List<Map> maps = JSON.parseArray(content, Map.class);//提取文章图片for (Map map : maps) {if(map.get("type").equals("image")){String imgUrl = (String) map.get("value");imagesUrls.add(imgUrl);}if(map.get("type").equals("text")){String text = (String) map.get("value");contentTexts.add(text);}}scanMaterialsList.put("imagesUrls",imagesUrls);scanMaterialsList.put("contentTexts",contentTexts);return scanMaterialsList;}
}

3.3 启动类扫描feign

调用Feign远程接口时，要在启动类中加入@EnableFeignClients(basePackages = “com.heima.apis”)来对feign的api进行扫描，同时也要引入feign-api模块的依赖

<dependency><groupId>com.heima</groupId><artifactId>heima-leadnews-feign-api</artifactId>
</dependency>

@SpringBootApplication
@EnableDiscoveryClient
@MapperScan("com.heima.wemedia.mapper")
@EnableFeignClients(basePackages = "com.heima.apis")
public class WemediaApplication {public static void main(String[] args) {SpringApplication.run(WemediaApplication.class,args);}@Beanpublic MybatisPlusInterceptor mybatisPlusInterceptor() {MybatisPlusInterceptor interceptor = new MybatisPlusInterceptor();interceptor.addInnerInterceptor(new PaginationInnerInterceptor(DbType.MYSQL));return interceptor;}
}

3.4 测试

转到WmNewAutoScanService接口中，ctrl+shift+T创建测试类

@SpringBootTest(classes = WemediaApplication.class)
@RunWith(SpringRunner.class)
class WmNewAutoScanServiceTest {@Autowiredprivate WmNewAutoScanService wmNewAutoScanService;@Testvoid autoScanMediaNews() {wmNewAutoScanService.autoScanMediaNews(6236);}
}

4 自媒体调用文章微服务feign远程调用服务降级

4.1 feign远程调用服务降级处理的逻辑

4.2 编写降级逻辑

在heima-leadnews-feign-api模块下编写降级逻辑com.heima.apis.article.fallback.IArticleClientFallback类，实现IArticleClient接口

@Component
public class IArticleClientFallback implements IArticleClient {@Overridepublic ResponseResult saveArticle(ArticleDto dto) {return ResponseResult.errorResult(AppHttpCodeEnum.SERVER_ERROR,"获取数据失败");}
}

4.3 指定IArticleClient接口指向Feign降级逻辑

@FeignClient(value = "leadnews-article",fallback = IArticleClientFallback.class)

@FeignClient(value = "leadnews-article",fallback = IArticleClientFallback.class)
public interface IArticleClient {@PostMapping("/api/v1/article/save")public ResponseResult saveArticle(@RequestBody ArticleDto dto) ;
}

4.4 加载feign降级逻辑

因为IArticleClientFallback是在com.heima.apis.article.fallback包下，并不能被spring通过@Component直接加载

因此需要在使用的微服务中加载feign

如使用的微服务是heima-leadnews-wemedia，所以要在com.heima.wemedia.config下创建InitConfig类加载feign降级策略

@Configuration
@ComponentScan("com.heima.apis.article.fallback")
public class InitConfig {
}

4.5 配置降级策略

要么在bootstrap中开启，要么在nacos中实现热更新

这里采用nacos热更新

feign:# 开启feign对hystrix熔断降级的支持hystrix:enabled: true# 修改调用超时时间client:config:default:connectTimeout: 2000readTimeout: 2000

4.6 测试

当前设置超时2s进行降级，测试一下

在com.heima.article.service.impl.ApArticleServiceImpl类中的saveArticle方法添加睡眠3秒进行测试

@Override
public ResponseResult saveArticle(ArticleDto dto) {try {Thread.sleep(3000);} catch (InterruptedException e) {throw new RuntimeException(e);}//1.参数检查if(dto == null){

这次审核6239

@SpringBootTest(classes = WemediaApplication.class)
@RunWith(SpringRunner.class)
class WmNewAutoScanServiceTest {@Autowiredprivate WmNewAutoScanService wmNewAutoScanService;@Testvoid autoScanMediaNews() {wmNewAutoScanService.autoScanMediaNews(6239);}
}

5 文章审核异步调用

5.1 在自动审核的方法加上@Async注解

Springboot集成异步线程调用

@Override
@Async//表明这是一个异步方法
public void autoScanMediaNews(Integer id) {try {Thread.sleep(1000);} catch (InterruptedException e) {throw new RuntimeException(e);}

5.2 在文章发布后调用自动审核方法

//5.审核文章
wmNewAutoScanService.autoScanMediaNews(wmNews.getId());

@Autowired
private WmNewAutoScanService wmNewAutoScanService;
@Override
public ResponseResult submitNews(WmNewsDto wmNewsDto) {// 0.参数检查if(wmNewsDto == null||wmNewsDto.getContent()==null){return ResponseResult.errorResult(AppHttpCodeEnum.PARAM_INVALID);}//1. 保存或修改文章WmNews wmNews = new WmNews();BeanUtils.copyProperties(wmNewsDto,wmNews);//1.1 封面if(wmNewsDto.getImages()!=null&& wmNewsDto.getImages().size()>0){String imageStr = StringUtils.join(wmNewsDto.getImages(), ",");wmNews.setImages(imageStr);}//1.2 如果封面为自动-1，则需要手动设置封面规则if(wmNewsDto.getType().equals(WemediaConstants.WM_NEWS_TYPE_AUTO)){wmNews.setType(null);}saveOrUpdateWmNews(wmNews);//2.判断是否为草稿，如果为草稿结束当前方法if(wmNews.getStatus().equals(WmNews.Status.NORMAL.getCode())){return ResponseResult.okResult(AppHttpCodeEnum.SUCCESS);}//3.不是草稿，保存文章内容与图片素材的关系//3.1 获取文章内容的图片素材List<String> imageList=extractUrlInfo(wmNewsDto.getContent());saveRelativeInfoForContent(imageList,wmNews.getId());//4.不是草稿，保存文章封面图片与图片素材的关系saveRelativeInfoForCover(wmNewsDto,wmNews,imageList);//5.审核文章wmNewAutoScanService.autoScanMediaNews(wmNews.getId());return ResponseResult.okResult(AppHttpCodeEnum.SUCCESS);
}

5.3 在启动类中添加注解开启异步调用

在自媒体引导类中使用@EnableAsync注解开启异步调用

@SpringBootApplication
@EnableDiscoveryClient
@MapperScan("com.heima.wemedia.mapper")
@EnableFeignClients(basePackages = "com.heima.apis")
@EnableAsync//开启异步
public class WemediaApplication {public static void main(String[] args) {SpringApplication.run(WemediaApplication.class,args);}@Beanpublic MybatisPlusInterceptor mybatisPlusInterceptor() {MybatisPlusInterceptor interceptor = new MybatisPlusInterceptor();interceptor.addInnerInterceptor(new PaginationInnerInterceptor(DbType.MYSQL));return interceptor;}
}

5.4 综合测试

5.5 使用rabbit MQ来完成异步调用

我的异步调用只要在启动类中加入@EnableAsync就报错，迫不得已采用rabbitMQ

5.5.1 引入依赖

在heima-leadnews-service中引入依赖

<dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-amqp</artifactId>
</dependency>
<dependency><groupId>com.fasterxml.jackson.core</groupId><artifactId>jackson-databind</artifactId>
</dependency>

5.5.2 为微服务配置MQ

在heima-leadnews-article和wemedia的配置文件中添加配置

spring:rabbitmq:host: 192.168.204.129port: 5672virtual-host: /username: itcastpassword: 123321

5.5.3 改造方法，创建监听队列

修改heima-leadnews-wemedia下的com.heima.wemedia.service.impl.WmNewAutoScanServiceImpl类中的autoScanMediaNews方法

@Autowired
private RabbitTemplate rabbitTemplate;
@Override
public void autoScanMediaNews(Integer id) {//1.查询自媒体文章WmNews wmNews = wmNewsMapper.selectById(id);if (wmNews == null) {throw new RuntimeException("自媒体文章不存在");}if(wmNews.getStatus().equals(WmNews.Status.SUBMIT.getCode())){Map<String,List<String>> scanMaterialsList = extractImageAndContent(wmNews);//2.调用阿里云接口审核文本内容List<String> contentTexts =scanMaterialsList.get("contentTexts");boolean isTextScan =true;if(!isTextScan)return;//3.调用阿里云接口审核图片内容List<String> imagesUrls =scanMaterialsList.get("imagesUrls");boolean isImageScan =true;if(!isImageScan)return;if(isTextScan && isImageScan) {//审核通过wmNews.setStatus((short) 9);wmNews.setReason("审核通过");}}//4.审核成功保存app端的相关文章数据ArticleDto dto=new ArticleDto();BeanUtils.copyProperties(wmNews,dto);//布局dto.setLayout(wmNews.getType());//频道dto.setChannelId(wmNews.getChannelId());//频道名称WmChannel wmChannel = wmChannelMapper.selectById(wmNews.getChannelId());if(wmChannel!=null){dto.setChannelName(wmChannel.getName());}//作者dto.setAuthorId(Long.valueOf(wmNews.getUserId()));//作者名称WmUser wmUser= wmUserMapper.selectById(wmNews.getUserId());if(wmUser!=null){dto.setAuthorName(wmUser.getName());}//设置文章idif(wmNews.getArticleId()!=null){dto.setId(wmNews.getArticleId());}dto.setCreatedTime(new Date());//2.rabbitmq异步处理Map<String,Object> map=new HashMap<>();map.put("dto",dto);map.put("wmNewsId",id);rabbitTemplate.convertAndSend("article.queue", map);/*ResponseResult responseResult = iArticleClient.saveArticle(dto);if(responseResult.getCode().equals(200)){//保存成功wmNews.setArticleId((Long)responseResult.getData());wmNewsMapper.updateById(wmNews);}else{//保存失败log.error("保存app端文章失败，responseResult: {}", responseResult);throw new RuntimeException("保存app端文章失败");}*/
}

rabbitTemplate.convertAndSend("article.queue", map);

发送到article.queue队列

在heima-leadnews-article模块下创建com.heima.article.mq.ArticleMessageConsumer消费者监听类监听article.queue

@Slf4j
@Component
public class ArticleMessageConsumer {@Autowiredprivate IArticleClient iArticleClient;@Autowiredprivate RabbitTemplate rabbitTemplate;@RabbitListener(bindings =@QueueBinding(value=@Queue(name="article.queue"),exchange=@Exchange(name="article.direct",type= ExchangeTypes.FANOUT)))public void processMessage(Map<String,Object> map) {ObjectMapper objectMapper = new ObjectMapper();Object dto = map.get("dto");Integer id= (Integer) map.get("wmNewsId");LinkedHashMap<String, Object> linkedHashMap = (LinkedHashMap<String, Object>) dto;ArticleDto articleDto = objectMapper.convertValue(linkedHashMap, ArticleDto.class);// 异步处理文章数据ResponseResult responseResult = iArticleClient.saveArticle(articleDto);if(responseResult.getCode().equals(200)){WmNews wmNews = new WmNews();BeanUtils.copyProperties(dto, wmNews);wmNews.setArticleId((Long)responseResult.getData());Map<String,Object> params = new HashMap<>();params.put("id", id);params.put("wmNews", wmNews);params.put("articleId",(Long)responseResult.getData());rabbitTemplate.convertAndSend("wmNews.queue", params);log.info("发送params成功，param: {}", params);}else{//保存失败log.error("保存app端文章失败，responseResult: {}", responseResult);throw new RuntimeException("保存app端文章失败");}}
}

将ResponseResult responseResult = iArticleClient.saveArticle(articleDto);回填的id发到wmNews.queue

在heima-leadnews-wemedia模块下创建com.heima.wemedia.mq.ReceiveWmNewsId消费者监听类监听wmNews.queue

@Component
@Slf4j
public class ReceiveWmNewsId {@Autowiredprivate WmNewsMapper wmNewsMapper;@RabbitListener(bindings =@QueueBinding(value=@Queue(name="wmNews.queue"),exchange=@Exchange(name="wmNews.direct",type= ExchangeTypes.FANOUT)))public void processMessage(Map<String,Object> map) {ObjectMapper objectMapper = new ObjectMapper();Integer id= (Integer)map.get("id");Object wmNews= map.get("wmNews");Long articleId= (Long)map.get("articleId");LinkedHashMap<String, Object> linkedHashMap = (LinkedHashMap<String, Object>) wmNews;WmNews articleDto = objectMapper.convertValue(linkedHashMap, WmNews.class);WmNews oldwmNews = wmNewsMapper.selectById(id);BeanUtils.copyProperties(wmNews,oldwmNews);oldwmNews.setStatus((short) 9);oldwmNews.setReason("审核通过");oldwmNews.setArticleId(articleId);int i = wmNewsMapper.updateById(oldwmNews);if(i == 0){log.error("更新自媒体文章失败，wmNews: {}", oldwmNews);throw new RuntimeException("更新自媒体文章失败");}}
}

5.5.4 序列化MQ消息

在heima-leadnews-article和wemedia的启动类中添加序列化器

@SpringBootApplication
@EnableDiscoveryClient
@MapperScan("com.heima.wemedia.mapper")
@EnableFeignClients(basePackages = "com.heima.apis")
public class WemediaApplication {public static void main(String[] args) {SpringApplication.run(WemediaApplication.class,args);}@Beanpublic MybatisPlusInterceptor mybatisPlusInterceptor() {MybatisPlusInterceptor interceptor = new MybatisPlusInterceptor();interceptor.addInnerInterceptor(new PaginationInnerInterceptor(DbType.MYSQL));return interceptor;}@Beanpublic MessageConverter messageConverter(){return new Jackson2JsonMessageConverter();}@Beanpublic RabbitTemplate rabbitTemplate(ConnectionFactory connectionFactory, MessageConverter messageConverter) {RabbitTemplate rabbitTemplate = new RabbitTemplate(connectionFactory);rabbitTemplate.setMessageConverter(messageConverter);return rabbitTemplate;}
}

@SpringBootApplication
@EnableDiscoveryClient
@MapperScan("com.heima.article.mapper")
public class ArticleApplication {public static void main(String[] args) {SpringApplication.run(ArticleApplication.class,args);}@Beanpublic MybatisPlusInterceptor mybatisPlusInterceptor() {MybatisPlusInterceptor interceptor = new MybatisPlusInterceptor();interceptor.addInnerInterceptor(new PaginationInnerInterceptor(DbType.MYSQL));return interceptor;}@Beanpublic MessageConverter messageConverter(){return new Jackson2JsonMessageConverter();}@Beanpublic RabbitTemplate rabbitTemplate(ConnectionFactory connectionFactory, MessageConverter messageConverter) {RabbitTemplate rabbitTemplate = new RabbitTemplate(connectionFactory);rabbitTemplate.setMessageConverter(messageConverter);return rabbitTemplate;}
}

5.5.5 加上mq后的综合测试

测试通过在MQ上也检测到消息

6 自管理敏感词过滤

6.1 DFA实现原理

6.2 DFA检索过程

6.3 实现步骤

6.3.1 创建敏感词表

在leadnews-wemedia数据库中到入wm_sensitive.sql

6.3.2 将wm_sensitive对应的实体类和mapper导入

@Data
@TableName("wm_sensitive")
public class WmSensitive implements Serializable {private static final long serialVersionUID = 1L;/*** 主键*/@TableId(value = "id", type = IdType.AUTO)private Integer id;/*** 敏感词*/@TableField("sensitives")private String sensitives;/*** 创建时间*/@TableField("created_time")private Date createdTime;
}

@Mapper
public interface WmSensitiveMapper extends BaseMapper<WmSensitive> {
}

6.3.3 在阿里云接口前自行进行审查

boolean isSensitive= handleSensitiveWords(contentTexts,wmNews);

if(wmNews.getStatus().equals(WmNews.Status.SUBMIT.getCode())){Map<String,List<String>> scanMaterialsList = extractImageAndContent(wmNews);//2.调用阿里云接口审核文本内容List<String> contentTexts =scanMaterialsList.get("contentTexts");//2.1 敏感词过滤boolean isSensitive= handleSensitiveWords(contentTexts,wmNews);boolean isTextScan =true;if(!isTextScan)return;//3.调用阿里云接口审核图片内容List<String> imagesUrls =scanMaterialsList.get("imagesUrls");boolean isImageScan =true;

@Autowired
private WmSensitiveMapper wmSensitiveMapper;
private boolean handleSensitiveWords(List<String> contentTexts, WmNews wmNews) {boolean isSensitive = true;//1.获取所有敏感词List<WmSensitive> wmSensitiveList = wmSensitiveMapper.selectList(Wrappers.<WmSensitive>lambdaQuery().select(WmSensitive::getSensitives));List<String> collect = wmSensitiveList.stream().map(WmSensitive::getSensitives).collect(Collectors.toList());//2.初始化敏感词库SensitiveWordUtil.initMap(collect);//3.遍历文章内容查看是否包含敏感词for(String contentText:contentTexts){Map<String, Integer> map = SensitiveWordUtil.matchWords(contentText);if(map.size()>0){//4.如果包含敏感词，修改文章状态wmNews.setStatus((short) 2);wmNews.setReason("文章内容包含敏感词");wmNewsMapper.updateById(wmNews);isSensitive = false;break;}}return isSensitive;
}

6.3.4 测试

7 图片文字敏感词过滤

7.1 文字图片识别

7.2 Tesseract-OCR

7.3 Tess4j案例

7.3.1 导入依赖

在heima-leadnews-test模块下的tess4j-demo的模块下导入依赖

<dependency><groupId>net.sourceforge.tess4j</groupId><artifactId>tess4j</artifactId><version>4.1.1</version>
</dependency>

7.3.2 将训练好的分类器放入资源中

7.3.3 demo

在tess4j-demo的Applcation中

public class Application {/*** 识别图片中的文字* @param args*/public static void main(String[] args) {// 1.创建Tesseract对象Tesseract tesseract = new Tesseract();// 2.设置训练库的位置tesseract.setDatapath("D:\\Code\\JavaCode\\HeimaToutiao\\heima-leadnews\\heima-leadnews-test\\tess4j-demo\\src\\main\\resources\\tessdata");// 3.设置识别语言tesseract.setLanguage("chi_sim");// 4.设置识别图片File file = new File("D:\\Code\\JavaCode\\HeimaToutiao\\heima-leadnews\\heima-leadnews-test\\tess4j-demo\\src\\main\\resources\\testdata\\testImage.png");// 5.识别图片try {String result = tesseract.doOCR(file);System.out.println(result.replace("\\n|\\r", ""));} catch (TesseractException e) {e.printStackTrace();}}
}

7.3.4 结果

7.4 图片文字敏感词过滤实现

7.4.1 创建工具类

在heima-leadnews-common中创建com.heima.common.tess4j.Tess4jClient工具类，封装tess4j

@Getter
@Setter
@Component
@ConfigurationProperties(prefix = "tess4j")
public class Tess4jClient {private String dataPath;private String language;public String doOCR(BufferedImage image) throws TesseractException {//创建Tesseract对象ITesseract tesseract = new Tesseract();//设置字体库路径tesseract.setDatapath(dataPath);//中文识别tesseract.setLanguage(language);//执行ocr识别String result = tesseract.doOCR(image);//替换回车和tal键  使结果为一行result = result.replaceAll("\\r|\\n", "-").replaceAll(" ", "");return result;}}

7.4.2 工具类被其他微服务使用

想让工具类被其他微服务使用就要拷贝全路径，在当前的resource中的META-INF的spring.factories中添加配置

org.springframework.boot.autoconfigure.EnableAutoConfiguration=\com.heima.common.exception.ExceptionCatch,\com.heima.common.aliyun.GreenTextScan,\com.heima.common.aliyun.GreenImageScan,\com.heima.common.tess4j.Tess4jClient

7.4.3 在微服务中配置

在heima-leadnews-wemedia中的resource的boostrap.yml中进行配置

tess4j:data-path: D:\Code\JavaCode\HeimaToutiao\heima-leadnews\heima-leadnews-test\tess4j-demo\src\main\resources\tessdatalanguage: chi_sim

7.4.4 添加实现

在WmNewsAutoScanServiceImpl中的handleImageScan方法上添加如下代码

try {for (String image : images) {byte[] bytes = fileStorageService.downLoadFile(image);//图片识别文字审核---begin-----//从byte[]转换为butteredImageByteArrayInputStream in = new ByteArrayInputStream(bytes);BufferedImage imageFile = ImageIO.read(in);//识别图片的文字String result = tess4jClient.doOCR(imageFile);//审核是否包含自管理的敏感词boolean isSensitive = handleSensitiveScan(result, wmNews);if(!isSensitive){return isSensitive;}//图片识别文字审核---end-----imageList.add(bytes);} 
}catch (Exception e){e.printStackTrace();
}

8 静态文件生成

8.1 实现思路

我们在保存/修改文章时就应该同时异步的的生成静态文件，生成静态文件上传到minio中

8.1.1 生成minio接口和实现，并且异步调用

在com.heima.article.service.ArticleFreemarkerService接口

生成静态文件，上传到minio中

public interface ArticleFreemarkerService {/*** 生成静态化页面* @param apArticle* @param content*/public void buildArticleToMinio(ApArticle apArticle,String content);
}

@Service
@Slf4j
@Transactional
public class ArticleFreemarkerServiceImpl implements ArticleFreemarkerService {@Autowiredprivate ApArticleContentMapper apArticleContentMapper;@Autowiredprivate Configuration configuration;@Autowiredprivate FileStorageService fileStorageService;@Autowiredprivate ApArticleService apArticleService;/*** 生成静态化页面* @param apArticle* @param content*/@Async@Overridepublic void buildArticleToMinio(ApArticle apArticle, String content) {if(StringUtils.isNotBlank(content)){//1.文章内容通过freemarker生成静态html页面Template template = null;//2 输出流StringWriter writer = new StringWriter();try {template = configuration.getTemplate("article.ftl");//2.1 创建模型Map<String,Object> contentDataModel=new HashMap();//content是固定的，因为article.ftl中有<#if content??>${content}</#if>//因为apArticleContent.getContent()获取的是字符串，所以需要转换成对象contentDataModel.put("content", JSONArray.parseArray(content));//2.2 合成方法template.process(contentDataModel,writer);} catch (Exception e) {throw new RuntimeException(e);}//3.把静态页面上传到minio//3.1 文件流InputStream inputStream = new ByteArrayInputStream(writer.toString().getBytes());String path = fileStorageService.uploadHtmlFile("",apArticle.getId()+".html",inputStream);//4.把静态页面的路径保存到数据库apArticleService.update(Wrappers.<ApArticle>lambdaUpdate().eq(ApArticle::getId,apArticle.getId()).set(ApArticle::getStaticUrl,path));}}
}

8.1.2 修改saveArticle逻辑

修改com.heima.article.service.impl.ApArticleServiceImpl的saveArticle方法，添加buildArticleToMinio

articleFreemarkerService.buildArticleToMinio(apArticle, dto.getContent());

    @Autowiredprivate ApArticleConfigMapper apArticleConfigMapper;@Autowiredprivate ApArticleContentMapper apArticleContentMapper;@Autowiredprivate ArticleFreemarkerService articleFreemarkerService;/*** 保存文章* @param dto* @return*/@Overridepublic ResponseResult saveArticle(ArticleDto dto) {//1.参数检查if(dto == null){return ResponseResult.errorResult(AppHttpCodeEnum.PARAM_INVALID);}ApArticle apArticle = new ApArticle();//org.springframework.beansBeanUtils.copyProperties(dto, apArticle);//2.判断是否存在idif(dto.getId() == null) {//2.1 不存在id ，新增 文章、内容、配置save(apArticle);//2.1.2 保存文章配置ApArticleConfig apArticleConfig = new ApArticleConfig(apArticle.getId());apArticleConfigMapper.insert(apArticleConfig);//2.1.3 保存文章内容ApArticleContent apArticleContent = new ApArticleContent();apArticleContent.setArticleId(apArticle.getId());apArticleContent.setContent(dto.getContent());apArticleContentMapper.insert(apArticleContent);}else {//2.2 存在id，更新 文章、内容//2.2.1 更新文章updateById(apArticle);//2.2.2 更新文章内容ApArticleContent apArticleContent = apArticleContentMapper.selectOne(Wrappers.<ApArticleContent>lambdaQuery().eq(ApArticleContent::getArticleId, dto.getId()));apArticleContent.setContent(dto.getContent());apArticleContentMapper.updateById(apArticleContent);}//异步调用 生成静态文件上传到minio中articleFreemarkerService.buildArticleToMinio(apArticle, dto.getContent());//3.返回结果 文章的idreturn ResponseResult.okResult(apArticle.getId());}
}

8.1.3 开启异步调用

引导类加上@EnableAsyn

@SpringBootApplication
@EnableDiscoveryClient
@MapperScan("com.heima.article.mapper")
@EnableAsync
public class ArticleApplication {public static void main(String[] args) {SpringApplication.run(ArticleApplication.class,args);}@Beanpublic MybatisPlusInterceptor mybatisPlusInterceptor() {MybatisPlusInterceptor interceptor = new MybatisPlusInterceptor();interceptor.addInnerInterceptor(new PaginationInnerInterceptor(DbType.MYSQL));return interceptor;}@Beanpublic MessageConverter messageConverter(){return new Jackson2JsonMessageConverter();}@Beanpublic RabbitTemplate rabbitTemplate(ConnectionFactory connectionFactory, MessageConverter messageConverter) {RabbitTemplate rabbitTemplate = new RabbitTemplate(connectionFactory);rabbitTemplate.setMessageConverter(messageConverter);return rabbitTemplate;}
}

8.1.4 测试

查看minio有没有生成

生成成功，查看数据库，有html生成，说明功能成功