Python工程师面试宝典一线大厂资深面试官亲授

概述download:Python工程师面试宝典一线大厂资深面试官亲授Python服务端工程师学什么，面试问什么，你该准备什么？别苦恼，别害怕，别纠结，这门课程带你系统梳理面试知识，增加面试成功几率，提升后端开发技能，在面试之前解决你的各种问题，让你技术实力和面试技巧得到双重提升。适合人群Python服务端 download:Python工程师面试宝典一线大厂资深面试官亲授

Python服务端工程师学什么，面试问什么，你该准备什么？别苦恼，别害怕，别纠结，这门课程带你系统梳理面试知识，增加面试成功几率，提升后端开发技能，在面试之前解决你的各种问题，让你技术实力和面试技巧得到双重提升。

适合人群

Python服务端工程师(后端工程师)

初/中级 web 开发者和全栈开发者

使用 Python 语言的开发者

(运维工程师,爬虫工程师,数据分析师等)

技术储备要求

掌握Python编程语言

会使用Python进行网站开发，了解网站工作原理

有一定的网站后端基础知识
public Book() {
}

public Book(String ID, String name, String price, String auth,        String publish, String description) {    super();    this.ID = ID;    this.name = name;    this.price = price;    this.auth = auth;    this.publish = publish;    this.description = description;}public String getDescription() {    return description;}public voID setDescription(String description) {    this.description = description;}public String getID() {    return ID;}public voID setID(String ID) {    this.ID = ID;}public String getname() {    return name;}public voID setname(String name) {    this.name = name;}public String getPrice() {    return price;}public voID setPrice(String price) {    this.price = price;}public String getAuth() {    return auth;}public voID setAuth(String auth) {    this.auth = auth;}public String getPublish() {    return publish;}public voID setPublish(String publish) {    this.publish = publish;}

}

import java.util.linkedHashMap;
import java.util.Map;
import cn.huiyu.ben.Book;
public class BookDao {
private static Map<String,Book> bookMap = new linkedHashMap<String, Book>();
private BookDao() {
}
static{
bookMap.put("1", new Book("1","1111","11.0","zqwang","111出版社","111111111"));
bookMap.put("2", new Book("2","2222","22.0","zqwang","222出版社","222222222"));
bookMap.put("3", new Book("3","3333","33.0","zqwang","333出版社","333333333"));
}

public static Map<String,Book> getBooks(){    return bookMap;}public static Book getBook(String ID){    return bookMap.get(ID);}

}

public voID doGet(httpServletRequest request, httpServletResponse response)
throws servletexception, IOException {
response.setContentType("text/HTML;charset=utf-8");
//1.查询数据库中一切的书展现
Map<String,Book> map = BookDao.getBooks();
for(Map.Entry<String , Book> entry : map.entrySet()){
Book book = entry.getValue();
response.getWriter().write("<a href='"+request.getcontextpath()+"/servlet/BookInfoServlet?ID="+book.getID()+"'>"+book.getname()+"
");
}
response.getWriter().write("
");

    //2.显现之前看过的书    cookie [] cs = request.getcookies();    cookie findC = null;    if(cs!=null){        for(cookie c : cs){            if("last".equals(c.getname())){                findC = c;            }        }    }    if(findC == null){        response.getWriter().write("没有看过任何书!");    }else{        response.getWriter().write("您曾经阅读过的书:

");
String[] IDs = findC.getValue().split(",");
for(String ID : IDs){
Book book = BookDao.getBook(ID);
response.getWriter().write(book.getname()+"
");
}
}
}

public voID doGet(httpServletRequest request, httpServletResponse response)
throws servletexception, IOException {
response.setContentType("text/HTML;charset=utf-8");
//1.获取要看的书的ID,查询数据库找出书,输出书的细致信息
String ID = request.getParameter("ID");
Book book = BookDao.getBook(ID);
if(book==null){
response.getWriter().write("找不到这本书!");
return;
}else{
response.getWriter().write("
书名:"
+book.getname()+"");
response.getWriter().write("
作者:"
+book.getAuth()+"");
response.getWriter().write("
售价:"
+book.getPrice()+"");
response.getWriter().write("
出版社:"
+book.getPublish()+"");
response.getWriter().write("
描画信息:"
+book.getDescription()+"");
}

    //2.发送cookie保管最后看过的书    // --- 1 --> 1    // 1 --2,1 --> 2,1    // 2,1--3,2,1 --> 3,2,1    // 3,2,1 -- 4,3,2 --> 4,3,2    // 4,3,2 --3,4,2 --> 3,4,2    String IDs = "";    cookie [] cs = request.getcookies();    cookie findC = null;    if(cs!=null){        for(cookie c : cs){            if("last".equals(c.getname())){                findC = c;            }        }    }    if(findC == null){        //阐明之前没有看过书的记载        IDs += book.getID();    }else{        //阐明之前有历史看过的书的记载,需求依据历史记载算一个新的记载出来        String [] olds = findC.getValue().split(",");        StringBuffer buffer = new StringBuffer();        buffer.append(book.getID()+",");        for(int i = 0;i<olds.length && buffer.toString().split(",").length<3 ;i++){            String old = olds[i];            if(!old.equals(book.getID())){                buffer.append(old+",");            }        }        IDs = buffer.substring(0, buffer.length()-1);    }    cookie lastC = new cookie("last",IDs);    lastC.setMaxAge(3600*24*30);    lastC.setPath(request.getcontextpath());    response.addcookie(lastC);}

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