1 Redis List 类型

1.1 案例1

package mylist;import redis.clients.jedis.BinaryClient;
import redis.clients.jedis.Jedis;import java.util.List;public class ListMain {public static void main(String[] args) {Jedis jedis = new Jedis("127.0.0.1", 6379);jedis.del("光明顶");jedis.lpush("光明顶", "乔峰", "段誉", "虚竹", "鸠摩智");for (String name : jedis.lrange("光明顶", 0, -1)) {System.out.print(name + " ");}System.out.println("===============================");//新来一个人，王语嫣，插队到第一位jedis.rpush("光明顶", "王语嫣");List<String> list = jedis.lrange("光明顶", 0, -1);for (String name : list) {System.out.print(name + " ");}System.out.println("===============================");//剧情：鸠摩智很不高兴，正好慕容复来了，说：慕容兄，你插我前面jedis.linsert("光明顶", BinaryClient.LIST_POSITION.AFTER, "鸠摩智", "慕容复");List<String> list1 = jedis.lrange("光明顶", 0, -1);for (String name : list1) {System.out.print(name + " ");}System.out.println("===============================");//剧情：看到慕容复插队大家很生气，正好阿紫和游坦之。让阿紫和游坦之依次插到虚竹的后面jedis.linsert("光明顶", BinaryClient.LIST_POSITION.BEFORE, "虚竹", "阿紫");jedis.linsert("光明顶", BinaryClient.LIST_POSITION.BEFORE, "阿紫", "游坦之");List<String> list2 =jedis.lrange("光明顶",0,-1);for(String name:list2){System.out.print(name+" ");}System.out.println("===============================");//剧情：插队不文明，为了遏制这种不文明的现象，大决决定打一架。  鸠摩智被打跑了。jedis.lpop("光明顶");for(String name:jedis.lrange("光明顶",0,-1)){System.out.print(name+" ");}System.out.println("===============================");//剧情：慕容复一看情况不好，以表哥的身份忽悠王语嫣，把王语嫣打伤。jedis.rpop("光明顶");for(String name:jedis.lrange("光明顶",0,-1)){System.out.print(name+" ");}System.out.println("===============================");//剧情：在大家打架的时候，无名氏偷偷插队jedis.rpush("光明顶", "无名氏");for (String name : jedis.lrange("柜台1", 0, -1)) {System.out.print(name + "  ");}System.out.println("===============================");//慕容复被打跑了jedis.lpop("光明顶");for (String name : jedis.lrange("光明顶", 0, -1)) {System.out.print(name + "  ");}System.out.println("===============================");//剧情：星宿老怪 突然来了，把 阿紫和游坦之同时弄走了。String result = jedis.ltrim("光明顶", 2, 5);if ("OK".equals(result)) {for (String name : jedis.lrange("光明顶", 0, -1)) {System.out.print(name + "  ");}}System.out.println("===============================");//剧情：这时候，乔峰三人发现了无名氏，与之大战三百回合，无名氏全身而退String res = jedis.ltrim("光明顶", 0, 2);if ("OK".equals(res)) {for (String name : jedis.lrange("光明顶", 0, -1)) {System.out.print(name + "  ");}}}
}

D:\programs\Java\jdk1.8.0_181\bin\java.exe "-javaagent:D:\programs\JetBrains\IntelliJ IDEA 2018.2.4\lib\idea_rt.jar=50417:D:\programs\JetBrains\IntelliJ IDEA 2018.2.4\bin" -Dfile.encoding=UTF-8 -classpath D:\programs\Java\jdk1.8.0_181\jre\lib\charsets.jar;D:\programs\Java\jdk1.8.0_181\jre\lib\deploy.jar;D:\programs\Java\jdk1.8.0_181\jre\lib\ext\access-bridge-64.jar;D:\programs\Java\jdk1.8.0_181\jre\lib\ext\cldrdata.jar;D:\programs\Java\jdk1.8.0_181\jre\lib\ext\dnsns.jar;D:\programs\Java\jdk1.8.0_181\jre\lib\ext\jaccess.jar;D:\programs\Java\jdk1.8.0_181\jre\lib\ext\jfxrt.jar;D:\programs\Java\jdk1.8.0_181\jre\lib\ext\localedata.jar;D:\programs\Java\jdk1.8.0_181\jre\lib\ext\nashorn.jar;D:\programs\Java\jdk1.8.0_181\jre\lib\ext\sunec.jar;D:\programs\Java\jdk1.8.0_181\jre\lib\ext\sunjce_provider.jar;D:\programs\Java\jdk1.8.0_181\jre\lib\ext\sunmscapi.jar;D:\programs\Java\jdk1.8.0_181\jre\lib\ext\sunpkcs11.jar;D:\programs\Java\jdk1.8.0_181\jre\lib\ext\zipfs.jar;D:\programs\Java\jdk1.8.0_181\jre\lib\javaws.jar;D:\programs\Java\jdk1.8.0_181\jre\lib\jce.jar;D:\programs\Java\jdk1.8.0_181\jre\lib\jfr.jar;D:\programs\Java\jdk1.8.0_181\jre\lib\jfxswt.jar;D:\programs\Java\jdk1.8.0_181\jre\lib\jsse.jar;D:\programs\Java\jdk1.8.0_181\jre\lib\management-agent.jar;D:\programs\Java\jdk1.8.0_181\jre\lib\plugin.jar;D:\programs\Java\jdk1.8.0_181\jre\lib\resources.jar;D:\programs\Java\jdk1.8.0_181\jre\lib\rt.jar;D:\Data\JavaProject\myredis\target\classes;C:\Users\tzb\.m2\repository\redis\clients\jedis\2.8.2\jedis-2.8.2.jar;C:\Users\tzb\.m2\repository\org\apache\commons\commons-pool2\2.4.2\commons-pool2-2.4.2.jar;C:\Users\tzb\.m2\repository\junit\junit\4.12\junit-4.12.jar;C:\Users\tzb\.m2\repository\org\hamcrest\hamcrest-core\1.3\hamcrest-core-1.3.jar;C:\Users\tzb\.m2\repository\com\google\code\gson\gson\2.3.1\gson-2.3.1.jar mylist.ListMain
鸠摩智 虚竹 段誉 乔峰 ===============================
鸠摩智 虚竹 段誉 乔峰 王语嫣 ===============================
鸠摩智 慕容复 虚竹 段誉 乔峰 王语嫣 ===============================
鸠摩智 慕容复 游坦之 阿紫 虚竹 段誉 乔峰 王语嫣 ===============================
慕容复 游坦之 阿紫 虚竹 段誉 乔峰 王语嫣 ===============================
慕容复 游坦之 阿紫 虚竹 段誉 乔峰 ===============================
===============================
游坦之  阿紫  虚竹  段誉  乔峰  无名氏  ===============================
虚竹  段誉  乔峰  无名氏  ===============================
虚竹  段誉  乔峰
Process finished with exit code 0

1.2 案例2

1.2.1 爬虫测试

package mylist;import org.jsoup.Jsoup;
import org.jsoup.nodes.Document;
import org.jsoup.select.Elements;import java.io.IOException;/** 访问单个新闻业* */
public class SingleArticle {public static void main(String[] args) throws IOException {String url = "http://www.huxiu.com/article/102062/1.html";Document document = Jsoup.connect(url).get();//解析页面Elements titleElements = document.getElementsByTag("title");String title=titleElements.get(0).text();Elements elements=document.select("div #article_content");String content = elements.text();System.out.println("title: "+title);System.out.println("content: "+content);}
}

1.2.2 爬取的内容放到 redis

package mylist;import org.jsoup.Jsoup;
import org.jsoup.helper.StringUtil;
import org.jsoup.nodes.Document;
import org.jsoup.nodes.Element;
import org.jsoup.select.Elements;
import redis.clients.jedis.Jedis;import java.util.Date;public class Crawler {//定义需要爬取的url listprivate static final String redisUrlsWillKey = "crawler:urls:will";//如果需要去重的话，可以使用set保存已经爬起过的urlpublic static void main(String[] args) throws Exception {//准备UrlString startUrl = "https://www.huxiu.com/channel/22.html";String domain = "http://www.huxiu.com/";//获取文章UrlgetUrls(startUrl, domain);//处理url，下载文章的内容并打印parserUrl();}private static void parserUrl() throws Exception {Jedis jedis = new Jedis("127.0.0.1", 6379);//从右边弹出一个urlwhile (true) {String url = jedis.rpop(redisUrlsWillKey);try {Article article = parser(url);System.out.println(article);} catch (Exception e) {//                jedis.lpush(redisUrlsWillKey, url);}}}private static Article parser(String url) throws Exception {Document articleDocument = Jsoup.connect(url).get();Article article = new Article();// 封装作者的信息Elements author = articleDocument.getElementsByClass("author-name");article.setAuthor(StringUtil.isBlank(author.text()) ? "jingzhongyue": author.text());// 抽取文章日期Elements date = articleDocument.getElementsByClass("article-time");article.setDate(StringUtil.isBlank(date.text()) ? new Date(): DateUtil.getDate(date.text()));// 抽取文章标题Elements title = articleDocument.getElementsByTag("title");article.setTitle(title.text());// 抽取文章编号// http://www.huxiu.com/article/124698/1.htmlString id = url.substring(29);int index = id.indexOf("/");id = id.substring(0, index);article.setId(id);// 抽取文章正文StringBuffer stringBuffer = new StringBuffer();Elements contents = articleDocument.getElementsByAttribute("id");for (Element element : contents) {String idTag = element.attr("id");if ("article_content".equals(idTag)) {Elements childs = element.children();Elements pElements = childs.tagName("p");for (Element element2 : pElements) {stringBuffer.append(element2.text());}}}return article;}private static void getUrls(String startUrl, String domain) throws Exception {Jedis jedis = new Jedis("127.0.0.1", 6379);Document document = Jsoup.connect(startUrl).get();Elements elements = document.getElementsByAttribute("href");for (Element element : elements) {String endUrl = element.attr("href");if (endUrl.contains("article")) {String url = domain + endUrl;System.out.println(url);jedis.lpush(redisUrlsWillKey, url);}}}}

package mylist;import java.util.Date;import org.jsoup.helper.StringUtil;public class Article {private String id;private String title;private String content;private String author;private Date date;public String getId() {return id;}public void setId(String id) {this.id = id;}public String getTitle() {return title;}public void setTitle(String title) {this.title = title;}public String getContent() {return content;}public void setContent(String content) {this.content = content;}public String getAuthor() {return author;}public void setAuthor(String author) {this.author = author;}public Date getDate() {return date;}public void setDate(Date date) {this.date = date;}@Overridepublic String toString() {return "Article [id=" + id + ", title=" + title + ", content="+ content + ", author=" + author + ", date=" + date + "]";}public boolean isNotNull() {if (StringUtil.isBlank(content)) {return false;}return true;}}

package mylist;import java.text.SimpleDateFormat;
import java.util.Date;public class DateUtil {private static SimpleDateFormat simpleDateFormat =new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");public static Date getDate(String dString) throws Exception{return simpleDateFormat.parse(dString);}public static String getString(Date date) {return simpleDateFormat.format(date);}}

D:\programs\Java\jdk1.8.0_181\bin\java.exe "-javaagent:D:\programs\JetBrains\IntelliJ IDEA 2018.2.4\lib\idea_rt.jar=60901:D:\programs\JetBrains\IntelliJ IDEA 2018.2.4\bin" -Dfile.encoding=UTF-8 -classpath D:\programs\Java\jdk1.8.0_181\jre\lib\charsets.jar;D:\programs\Java\jdk1.8.0_181\jre\lib\deploy.jar;D:\programs\Java\jdk1.8.0_181\jre\lib\ext\access-bridge-64.jar;D:\programs\Java\jdk1.8.0_181\jre\lib\ext\cldrdata.jar;D:\programs\Java\jdk1.8.0_181\jre\lib\ext\dnsns.jar;D:\programs\Java\jdk1.8.0_181\jre\lib\ext\jaccess.jar;D:\programs\Java\jdk1.8.0_181\jre\lib\ext\jfxrt.jar;D:\programs\Java\jdk1.8.0_181\jre\lib\ext\localedata.jar;D:\programs\Java\jdk1.8.0_181\jre\lib\ext\nashorn.jar;D:\programs\Java\jdk1.8.0_181\jre\lib\ext\sunec.jar;D:\programs\Java\jdk1.8.0_181\jre\lib\ext\sunjce_provider.jar;D:\programs\Java\jdk1.8.0_181\jre\lib\ext\sunmscapi.jar;D:\programs\Java\jdk1.8.0_181\jre\lib\ext\sunpkcs11.jar;D:\programs\Java\jdk1.8.0_181\jre\lib\ext\zipfs.jar;D:\programs\Java\jdk1.8.0_181\jre\lib\javaws.jar;D:\programs\Java\jdk1.8.0_181\jre\lib\jce.jar;D:\programs\Java\jdk1.8.0_181\jre\lib\jfr.jar;D:\programs\Java\jdk1.8.0_181\jre\lib\jfxswt.jar;D:\programs\Java\jdk1.8.0_181\jre\lib\jsse.jar;D:\programs\Java\jdk1.8.0_181\jre\lib\management-agent.jar;D:\programs\Java\jdk1.8.0_181\jre\lib\plugin.jar;D:\programs\Java\jdk1.8.0_181\jre\lib\resources.jar;D:\programs\Java\jdk1.8.0_181\jre\lib\rt.jar;D:\Data\JavaProject\myredis\target\classes;C:\Users\tzb\.m2\repository\redis\clients\jedis\2.8.2\jedis-2.8.2.jar;C:\Users\tzb\.m2\repository\org\apache\commons\commons-pool2\2.4.2\commons-pool2-2.4.2.jar;C:\Users\tzb\.m2\repository\junit\junit\4.12\junit-4.12.jar;C:\Users\tzb\.m2\repository\org\hamcrest\hamcrest-core\1.3\hamcrest-core-1.3.jar;C:\Users\tzb\.m2\repository\com\google\code\gson\gson\2.3.1\gson-2.3.1.jar;C:\Users\tzb\.m2\repository\org\jsoup\jsoup\1.8.3\jsoup-1.8.3.jar mylist.Crawler
http://www.huxiu.com//article/265397.html
http://www.huxiu.com//article/265362.html
http://www.huxiu.com//article/265365.html
http://www.huxiu.com//article/265356.html
http://www.huxiu.com//article/265328.html
http://www.huxiu.com//article/265321.html
http://www.huxiu.com//article/265318.html
http://www.huxiu.com//article/265160.html
http://www.huxiu.com//article/265278.html
http://www.huxiu.com//article/265228.html
http://www.huxiu.com//article/265224.html
http://www.huxiu.com//article/265176.html
http://www.huxiu.com//article/265198.html
http://www.huxiu.com//article/265074.html
http://www.huxiu.com//article/264936.html
http://www.huxiu.com//article/264972.html
http://www.huxiu.com//article/264935.html
http://www.huxiu.com//article/264951.html
http://www.huxiu.com//article/264945.html
http://www.huxiu.com//article/264917.html
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Redis 学习笔记（3）—— Redis List 类型

1 Redis List 类型

1.1 案例1

1.2 案例2

1.2.1 爬虫测试

1.2.2 爬取的内容放到 redis

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