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fix(novel-crawl): 调整线程终止逻辑

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xiongxiaoyang 2025-05-13 09:58:47 +08:00
parent 2c86cb9a7d
commit 1f53b56bd6
6 changed files with 45 additions and 25 deletions
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2
novel-crawl/src/main/java/com/java2nb/novel/core/crawl/CrawlBookHandler.java
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@ -7,6 +7,6 @@ import com.java2nb.novel.entity.Book;
* */
public interface CrawlBookHandler {
void handle(Book book);
void handle(Book book) throws InterruptedException;
}

13
novel-crawl/src/main/java/com/java2nb/novel/core/crawl/CrawlParser.java
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@ -10,9 +10,11 @@ import com.java2nb.novel.utils.CrawlHttpClient;
import io.github.xxyopen.util.IdWorker;
import lombok.RequiredArgsConstructor;
import lombok.SneakyThrows;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang3.StringUtils;
import org.springframework.stereotype.Component;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;
@ -26,6 +28,7 @@ import java.util.regex.Pattern;
*
* @author Administrator
*/
@Slf4j
@Component
@RequiredArgsConstructor
public class CrawlParser {
@ -34,8 +37,8 @@ public class CrawlParser {
private final CrawlHttpClient crawlHttpClient;
@SneakyThrows
public void parseBook(RuleBean ruleBean, String bookId, CrawlBookHandler handler) {
public void parseBook(RuleBean ruleBean, String bookId, CrawlBookHandler handler)
throws InterruptedException {
Book book = new Book();
String bookDetailUrl = ruleBean.getBookDetailUrl().replace("{bookId}", bookId);
String bookDetailHtml = crawlHttpClient.get(bookDetailUrl, ruleBean.getCharset());
@ -120,8 +123,12 @@ public class CrawlParser {
if (isFindUpdateTime) {
String updateTime = updateTimeMatch.group(1);
//设置更新时间
try {
book.setLastIndexUpdateTime(
new SimpleDateFormat(ruleBean.getUpadateTimeFormatPatten()).parse(updateTime));
} catch (ParseException e) {
log.error("解析最新章节更新时间出错", e);
}
}
}
@ -144,7 +151,7 @@ public class CrawlParser {
}
public boolean parseBookIndexAndContent(String sourceBookId, Book book, RuleBean ruleBean,
Map<Integer, BookIndex> existBookIndexMap, CrawlBookChapterHandler handler) {
Map<Integer, BookIndex> existBookIndexMap, CrawlBookChapterHandler handler) throws InterruptedException{
Date currentDate = new Date();

6
novel-crawl/src/main/java/com/java2nb/novel/core/listener/StarterListener.java
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@ -74,10 +74,8 @@ public class StarterListener implements ServletContextInitializer {
needUpdateBook.getId());
//解析章节目录
crawlParser.parseBookIndexAndContent(needUpdateBook.getCrawlBookId(), book,
ruleBean, existBookIndexMap, chapter -> {
bookService.updateBookAndIndexAndContent(book, chapter.getBookIndexList(),
chapter.getBookContentList(), existBookIndexMap);
});
ruleBean, existBookIndexMap, chapter -> bookService.updateBookAndIndexAndContent(book, chapter.getBookIndexList(),
chapter.getBookContentList(), existBookIndexMap));
});
} catch (Exception e) {
log.error(e.getMessage(), e);

2
novel-crawl/src/main/java/com/java2nb/novel/service/CrawlService.java
View File

@ -53,7 +53,7 @@ public interface CrawlService {
* @param ruleBean 采集规则\
* @return true:成功，false:失败
* */
boolean parseBookAndSave(int catId, RuleBean ruleBean, Integer sourceId, String bookId);
boolean parseBookAndSave(int catId, RuleBean ruleBean, Integer sourceId, String bookId) throws InterruptedException;
/**
* 根据爬虫状态查询爬虫源集合

33
novel-crawl/src/main/java/com/java2nb/novel/service/impl/CrawlServiceImpl.java
View File

@ -249,6 +249,11 @@ public class CrawlServiceImpl implements CrawlService {
@Override
public void parseBookList(int catId, RuleBean ruleBean, Integer sourceId) {
String catIdRule = ruleBean.getCatIdRule().get("catId" + catId);
if (StringUtils.isBlank(catIdRule)) {
return;
}
//当前页码1
int page = 1;
int totalPage = page;
@ -256,11 +261,7 @@ public class CrawlServiceImpl implements CrawlService {
while (page <= totalPage) {
try {
String catIdRule = ruleBean.getCatIdRule().get("catId" + catId);
if (StringUtils.isBlank(catIdRule) || Thread.currentThread().isInterrupted()) {
return;
}
String catBookListUrl = "";
String catBookListUrl;
if (StringUtils.isNotBlank(ruleBean.getBookListUrl())) {
// 兼容老规则
// 拼接分类URL
@ -290,6 +291,12 @@ public class CrawlServiceImpl implements CrawlService {
String bookId = bookIdMatcher.group(1);
parseBookAndSave(catId, ruleBean, sourceId, bookId);
} catch (InterruptedException e) {
log.error(e.getMessage(), e);
//1.阻塞过程（使用了 sleep,同步锁的 wait,socket 中的 receiver,accept 等方法时）
//捕获中断异常InterruptedException来退出线程。
//2.非阻塞过程中通过判断中断标志来退出线程。
return;
} catch (Exception e) {
log.error(e.getMessage(), e);
}
@ -306,6 +313,12 @@ public class CrawlServiceImpl implements CrawlService {
}
}
} catch (InterruptedException e) {
log.error(e.getMessage(), e);
//1.阻塞过程（使用了 sleep,同步锁的 wait,socket 中的 receiver,accept 等方法时）
//捕获中断异常InterruptedException来退出线程。
//2.非阻塞过程中通过判断中断标志来退出线程。
return;
} catch (Exception e) {
log.error(e.getMessage(), e);
}
@ -317,8 +330,12 @@ public class CrawlServiceImpl implements CrawlService {
Thread.sleep(Duration.ofMinutes(1));
} catch (InterruptedException e) {
log.error(e.getMessage(), e);
//1.阻塞过程（使用了 sleep,同步锁的 wait,socket 中的 receiver,accept 等方法时）
//捕获中断异常InterruptedException来退出线程。
//2.非阻塞过程中通过判断中断标志来退出线程。
return;
}
}else{
} else {
page += 1;
}
}
@ -327,7 +344,8 @@ public class CrawlServiceImpl implements CrawlService {
}
@Override
public boolean parseBookAndSave(int catId, RuleBean ruleBean, Integer sourceId, String bookId) {
public boolean parseBookAndSave(int catId, RuleBean ruleBean, Integer sourceId, String bookId)
throws InterruptedException {
final AtomicBoolean parseResult = new AtomicBoolean(false);
@ -391,4 +409,5 @@ public class CrawlServiceImpl implements CrawlService {
.render(RenderingStrategies.MYBATIS3);
return crawlSourceMapper.selectMany(render);
}
}

8
novel-crawl/src/main/java/com/java2nb/novel/utils/CrawlHttpClient.java
View File

@ -25,13 +25,9 @@ public class CrawlHttpClient {
private static final ThreadLocal<Integer> RETRY_COUNT = new ThreadLocal<>();
public String get(String url, String charset) {
public String get(String url, String charset) throws InterruptedException {
if (Objects.nonNull(intervalMin) && Objects.nonNull(intervalMax) && intervalMax > intervalMin) {
try {
Thread.sleep(random.nextInt(intervalMax - intervalMin + 1) + intervalMin);
} catch (InterruptedException e) {
log.error(e.getMessage(), e);
}
}
String body = HttpUtil.getByHttpClientWithChrome(url, charset);
if (Objects.isNull(body) || body.length() < Constants.INVALID_HTML_LENGTH) {
@ -41,7 +37,7 @@ public class CrawlHttpClient {
return body;
}
private String processErrorHttpResult(String url, String charset) {
private String processErrorHttpResult(String url, String charset) throws InterruptedException{
Integer count = RETRY_COUNT.get();
if (count == null) {
count = 0;