北大青鸟java第一单元项目_北大青鸟第一单元项目（小说管理系统）

刺骨的言语ヽ痛彻心扉 2022-11-02 14:29 138阅读 0赞

1 packagebooks;2

3 importjava.io.File;4 importjava.io.FileNotFoundException;5 importjava.io.FileOutputStream;6 importjava.io.IOException;7 importjava.io.OutputStreamWriter;8 importjava.io.PrintWriter;9 importjava.io.UnsupportedEncodingException;10 importjava.util.ArrayList;11 importjava.util.Iterator;12 importjava.util.List;13

14 importorg.dom4j.Document;15 importorg.dom4j.DocumentException;16 importorg.dom4j.Element;17 importorg.dom4j.io.OutputFormat;18 importorg.dom4j.io.SAXReader;19 importorg.dom4j.io.XMLWriter;20

23 public classserver\_data \{24 /\*\*

25 \* 登陆功能26 \* 建立document对象 读取配置文件27 \*/

28 public intLogin(String usename, String password) \{29 int val = 0; //返回值

30 SAXReader sax = newSAXReader();31 try\{32 Document doc = sax.read(new File("user.xml"));33 List> list = doc.selectNodes("/uses/use");34 Iterator> iterator =list.iterator();35 while(iterator.hasNext()) \{36 Element use =(Element) iterator.next();37 String name = use.attribute("usename").getValue();38 String pass = use.attribute("password").getValue();39 if(name.equals(usename) &&pass.equals(password)) \{40 val = 1;41 \}42 \}43

44 \} catch(DocumentException e) \{45 e.printStackTrace();46 \}47

48 returnval;49 \}50 /\*\*

51 \* 注册功能52 \*@paramusename53 \*@parampassword54 \*@return

55 \*/

56 public intregistration(String usename, String password) \{57 int val = 0;58 try\{59 SAXReader sax = newSAXReader();60 Document doc = sax.read(new File("user.xml"));61 List> listuse = doc.selectNodes("/uses/use");62 Iterator> iterator =listuse.iterator();63 while(iterator.hasNext()) \{64 Element elementuse =(Element) iterator.next();65 String nameuse = elementuse.attribute("usename").getValue();66 if(!(nameuse.equals(usename))) \{67 List> listuses = doc.selectNodes("uses");68 Element uses = (Element) listuses.get(0);69 Element use = uses.addElement("use");70 use.addAttribute("usename", usename);71 use.addAttribute("password", password);72

73 XMLWriter writer = new XMLWriter(new FileOutputStream(new File("user.xml")));74 writer.write(doc);75 writer.close();76 val = 1;77 \}78 \}79

80 \} catch(DocumentException e) \{81 e.printStackTrace();82 \} catch(UnsupportedEncodingException e) \{83 e.printStackTrace();84 \} catch(FileNotFoundException e) \{85 e.printStackTrace();86 \} catch(IOException e) \{87 e.printStackTrace();88 \}89 returnval;90 \}91

92 /\*\*

93 \* 武侠小说集合94 \*/

95 public Listwuxiabooklist() \{96 try\{97 SAXReader sax = newSAXReader();98 Document doc = sax.read(new File("wuxiabooks.xml"));99 List> list = doc.selectNodes("/books/book");100 Iterator> iterator =list.iterator();101 List booklist = new ArrayList();102 while(iterator.hasNext()) \{103 Book book = newBook();104 Element bookx =(Element) iterator.next();105 String bookname = bookx.attribute("bookname").getValue();106 String bookauthor = bookx.attribute("bookauthor").getValue();107 String bookintroduction = bookx.attribute("bookintroduction").getValue();108 String bookContent = bookx.attribute("bookContent").getValue();109

110 book.setBookname(bookname);111 book.setBookauthor(bookauthor);112 book.setBookintroduction(bookintroduction);113 book.setBookContent(bookContent);114 booklist.add(book);115 \}116 returnbooklist;117 \} catch(DocumentException e) \{118 e.printStackTrace();119 \}120 return null;121

122 \}123

124 /\*\*

125 \* 言情小说集合126 \*@return

127 \*/

128 public Listyanqingbooklist() \{129 try\{130 SAXReader sax = newSAXReader();131 Document doc = sax.read(new File("yanqingbooks.xml"));132 List> list = doc.selectNodes("/books/book");133 Iterator> iterator =list.iterator();134 List booklist = new ArrayList();135 while(iterator.hasNext()) \{136 Book book = newBook();137 Element bookx =(Element) iterator.next();138 String bookname = bookx.attribute("bookname").getValue();139 String bookauthor = bookx.attribute("bookauthor").getValue();140 String bookintroduction = bookx.attribute("bookintroduction").getValue();141 String bookContent = bookx.attribute("bookContent").getValue();142

143 book.setBookname(bookname);144 book.setBookauthor(bookauthor);145 book.setBookintroduction(bookintroduction);146 book.setBookContent(bookContent);147

148 booklist.add(book);149 \}150

151 returnbooklist;152 \} catch(DocumentException e) \{153 e.printStackTrace();154 \}155 return null;156

157 \}158 publicFile downbook(String type ,String bookname) \{159 try\{160 File file = new File("F://downbook");161 file.mkdir();162 File filebook = new File(file, bookname + ".txt");163 filebook.createNewFile();164 List list = newArrayList();165 if(type.equals("wuxia")) \{166 list =wuxiabooklist();167 \}else if(type.equals("yanqing")) \{168 list =yanqingbooklist();169 \}170 for(int i = 0; i

187 /\*\*

188 \* 长传小说189 \*@parambook190 \*@paramfile191 \*@return

192 \*/

193 public intupbook(Book book, String path) \{194 int val = 0;195 SAXReader sax = newSAXReader();196 Document doc = null;197 File files = null;198 try\{199 /\*FileReader fr = new FileReader(new File(path));200 char\[\] buf = new char\[1024\];201 fr.read(buf);202 String by = buf.toString();203 buf.\*/

204 if(book.getBooktype().equals("wuxia")) \{205 doc = sax.read(new File("wuxiabooks.xml"));206 files = new File("wuxiabooks.xml");207 \}else if(book.getBooktype().equals("yanqing")) \{208 doc = sax.read(new File("yanqingbooks.xml"));209 files = new File("yanqingbooks.xml");210 \}211 List list = doc.selectNodes("/books");212 Element books = (Element) list.get(0);213 Element upbook = books.addElement("book");214 upbook.addAttribute("bookname", book.getBookname());215 upbook.addAttribute("bookauthor", book.getBookauthor());216 upbook.addAttribute("bookintroduction", book.getBookintroduction());217 upbook.addAttribute("bookContent", book.getBookContent());218 val = 1;219 //fr.close();

220

221 XMLWriter writer = null;//new XMLWriter(new FileWriter(files));

222 OutputFormat format =OutputFormat.createPrettyPrint();223 format.setEncoding("GBK");224 writer = new XMLWriter(new OutputStreamWriter(new

225 FileOutputStream(files), format.getEncoding()), format);226 writer.write(doc);227 //writer.write(doc);

228 writer.close();229 \} catch(DocumentException e) \{230 e.printStackTrace();231 \} catch(FileNotFoundException e) \{232 e.printStackTrace();233 \} catch(IOException e) \{234 e.printStackTrace();235 \}236

237

238 returnval;239 \}240 \}