java开发项目集锦

1、新浪天气预报新闻java抓去程序package*正则方式抓取新浪天气新闻上的新闻*地址*paramargs*/publicclassNewlist(privatestaticfinalLoglog=;/*测试*paramargs*/publicstaticvoidmain(Stringargs)(Newlistn=newNewlist();Stringk=();for(inti=0;i<i+)"href="","href="url=");Stringm=("news/2008/1119/");for(intl

2、=0;l<l+)/*由url地址获得新闻内容string新闻中的图片下载到本地，文中新闻地址改成本地地址* paramurl* return*/publicStringgetNewinfo(Stringurl)StringURL=""+url;)</p>",getContent(URL),30);for(inti=0;i<i+)Patternsp=("src="(.*)"");Matchermatcher=(si);if()Stringimageurl=analysis("src="

3、;(.*)"",si,1)0;if(!("")imageurl=""+imageurl;"新闻有图片:"+imageurl);Stringcontent=getContent(imageurl);Stringimages=("/");Stringimagename=images;”图片名:"+imagename);try(Filefwl=newFile(imagename);PrintWriteroutl=newPrintWriter(fwl);(content);();catch(I

4、OExceptione)(eplace(analysis("src="(.*)"",si,1)0,imagename);returns;publicStringgetNewList()Stringurl=""returngetNewList(getContent(url);privateStringgetNewList(Stringcontent)/images/a(.*).gif"width="70"height="65"></td>",content,5

5、0);Strings=analysis("<li>(.*)</li>",content,50);returns;privateStringanalysis(Stringpattern,Stringmatch,inti)Patternsp=(pattern);Matchermatcher=(match);Stringcontent=newStringi;for(inti1=0;();i1+)contenti1=(1);penConnection();oString();BufferedReaderbr=newBufferedReader(newInpu

6、tStreamReader(),"gb2312");Strings=""StringBuffersb=newStringBuffer();while(s=()!=null)(s+"rn");"长度+"+().length();return();)catch(Exceptione)(return"erroropenurl"+strUrl;)*/publicstaticStringgetContent(StringstrUrl)(URLConnectionuc=null;Stringall_cont

7、ent=null;try(all_content=newString();URLurl=newURL(strUrl);uc=();("User-Agent","Mozilla/(compatible;MSIE;WindowsXP;DigExt)");I!-");"Content-Length:"+();"Set-Cookie:"+("Set-Cookie");I!");oString();if(uc=null)returnnull;InputStreamins=();Byte

8、ArrayOutputStreamoutputstream=newByteArrayOutputStream();byte口str_b=newbyte1024;inti=-1;while(i=(str_b)>0)(str_b,0,i);)all_content=();oString();if(uc=null)return0;InputStreamins=();bytestr_b=newbyte1024;intbyteRead=0;Stringimages=("/");Stringimagename=images;Filefwl=newFile(imagename);F

9、ileOutputStreamfos=newFileOutputStream(fwl);while(byteRead=(str_b)>0)(str_b,0,byteRead););();();)catch(Exceptione)();("获取网页内容出错");)finally(uc=null;)return1;)方法二：xmlStringregex()中首先把搜索后的页面用流读取出来，再写个正则，去除不要的内容，再把最后的结果存成格式文件、或者直接存入数据库，用的时候再调用本代码只是显示html页的源码内容，如果需要抽取内容请自行改写publicstatic的正则式p

10、ackagerssTest;importimportimportimportimportimportimportimportimportimportimportpublicclassMyRSS(/*获取搜索结果的html源码*/publicstaticStringgetHtmlSource(Stringurl)(StringBuffercodeBuffer=null;BufferedReaderin=null;try(URLConnectionuc=newURL(url).openConnection();/*为了限制客户端不通过网页直接读取网页内容，就限制只能从浏览器提交请求*但是我们可以通

11、过修改http头的User-Agent来伪装，这个代码就是这个作用*/("User-Agent","Mozilla/(compatible;MSIE;WindowsXP;DigExt)");etInputStream(),"gb2312");codeBuffer=newStringBuffer();StringtempCode=""ppend("n");)();)catch(MalformedURLExceptione)();)catch(lOExceptione)();)return();)/

12、*正则表达式*/publicstaticStringregex()(StringgoogleRegex="<divclass=g>(.*)hre仁"(.*)"(.*)">(.*)</a>(.*)<divclass=std>(.*)<br>"returngoogleRegex;)/*测试用*在google中检索关键字，并抽取自己想要的内容* */publicstaticList<String>GetNews()(List<String>newsList=newArray

13、List<String>();StringallHtmlSource=MyRSS.getHtmlSource("&hl=zh-CN&newwindow=1&client=aff-os-maxthon&hs=SUZ&q=%E8%A7%81%E9%BE%99%E5%8D%B8%E7%94%B2&meta=&aq=f");Patternpattern=(regex();Matchermatcher=(allHtmlSource);while()(StringurlLink=(2);Stringtitle=(4);

14、title=("<fontcolor=CC0033>","");title=("</font>","");title=("<b>.</b>","");Stringcontent=(6);content=("<fontcolor=CC0033>","");content=("</font>","");content=("

15、;<b>.</b>","");(urlLink);(title);(content);)returnnewsList;)/* main方法* */publicstaticvoidmain(Stringargs)(.println(MyRSS.getHtmlSource("");)方法三：jsp自动抓取新闻自动抓取新闻packageclassSpiderNewsServer(publicstaticvoidmain(Stringargs)throwsException(oString();"strNewsDeta

16、il="+strNewsDetail);if(strNewsDetail!=null&&()>0)(WebHtmlnewsListHtml=newWebHtml();StringhtmlDocuemtntCom=(strNewsDetail);"$"+htmlDocuemtntCom);if(htmlDocuemtntCom=null|()=0)(return;rim();title=("<h1>")+4,("</h1>");title=("'"Hl!

17、);title=("","");title=("","");rim();if("<p>")>0&&("</p>")>("<p>")&&("</p>")>0)bodytext=("<p>")+3,("</p>");bodytext=("&nbsp;",

18、"");bodytext=("<br>","");bodytext=("n","<br>");bodytext=("'","");bodytext=("","");."else(hometext=bodytext+""+1,5);Calendarcal=();(newDate();cdate=()+""cdate=(0,10);else

19、(continue;""+title);""+cdate);""+cdate);""+hometext);""+bodytext);""+keywords);""+counter);/*Stringstr="INSERTINTOecim_stories(uid,title,created,published,hostname,hometext,bodytext,keywords,counter,topicid,ihome,notifypub,st

20、ory_type,topicdisplay,topicalign,comments,rating,votes,description)”;str+="VALUE(1,'"+title+"',"+cdate+","+cdate+",'','"+hometext+"','"+bodytext+"','"+keywords+"',"+counter+",1,0,1,admi

21、n',0,'R',0,0,0,'')"DBAccessdb=newDBAccess();if(str)>0)"成功！");else"失败！");*/*抓取页面内容结束*/packageclassWebHtml/*根据url,抓取webhmtl内容*paramurl*/publicStringgetWebHtml(Stringurl)tryURLmyURL=newURL(url);URLConnectionconn=();BufferedReaderreader=newBufferedReader(n

22、ewInputStreamReader();Stringline=null;StringBufferdocument=newStringBuffer("");while(line=()!=null)(line+"n");();StringresutlDocument=newString(document);returnresutlDocument;)catch(Exceptione)()return"")Java简易播放器import.*;import.*;import.*;import.*;import.*;etClassName(

23、);(this);)catch(Exceptione)();*etSelected(true);();/*loopItem=newJCheckBoxMenuItem("是否循环");(loopItem);(newItemListener()(publicvoiditemStateChanged(ItemEvente)(loop=!loop;);*/infor=newJMenuItem("软件简介”)；(infor);(this);about=newJMenuItem("关于作者");(this);(about);+();+name,indexF

24、orDel);catch(ReNamee2)etImage();quals("")(this,"错误的路径","出错了",;StringsFiles=();for(inti=0;i<i+)(sFilesi);()+1)+"."+sFilesi);()+""+sFilesi);(numList);/*fd=newFileDialog;(true);if()!=null)(FilefileDir=newFile();Stringss=();for(inti=0;i<i+)(*/priva

25、tevoidcreatePlayer()(closePreviosPlayer();+1)+"格式"try(player=();sSelected()(if()=0)return;index=(int)()*();if(buttonValues1.isSelected()(if()=0)return;sSelected()(newTime(0);();createPlayer2();)privatevoidexity_n()(/*intexi;exi=(this,"真的要离开么","退出程序",;+vf);(vf)；()+1)+&qu

26、ot;."+vf)；+vf);(title);(numList);oString();oString();catch(ArrayIndexOutOfBoundsExceptione)(return;file=newFile(title);closePreviosPlayer();+1)+"格式"try(player=();oString();catch(Exceptione1)(return;(index);();EnumerationenumFile=();while()()+1)+"."+();(index);+1)+"格式,&q

27、uot;+"不过没有从硬盘真正删除");if()!=0)(createPlayer2();index%=();)privatevoidsaveList()(EnumerationenumFile=();EnumerationenumDir=();try(output=newObjectOutputStream(newBufferedOutputStream(newFileOutputStream(listFile);while()(listWriteFile=newListValues().toString(),().toString();(listWriteFile);)

28、();();)catch(Exceptione)();)/*finally();();+();();)catch(EOFExceptione)(try(xe");)*/)importclassDialogDemoextendsJDialog(JTextAreafield;Containerc;StringsValue="n本软件基于javamediaframework构建，同时我们+"n正处于基础java学习阶段，所以功能还不是非常完"+"n善，难登大雅之堂。"+"nnt功能简介："+"n本软件的播放清单

29、文件保存在同目录下的"+"""+""+"""+"文件"+"n下，如果系统不存在此文件则第一次打开的时候软件+"n会自动建立。本软件能打开单个音乐文件或整个音乐"+"n目录，清单支持右键操作，当在列表中读取到不支持的"+"n文件时，此软件会自动把那个文件从清单清除，并另"+"n外播放一首歌。不过此软件有个不足之处，就是当你更”+"n改了清单的时候，要正常退出，即先关闭播放器，然后"+&qu

30、ot;n再关闭DOS窗口，因为我是在关闭播放器的时候保存清单”+"n文件的。不过你运行我编译出来的jar文件就没有此问题”+"n如果你使用中遇到任何问题，请通知我们，谢谢你的支持"DialogDemo(Frameframe,Stringtitle)(super(frame,title);field=newJTextArea();(sValue);(false);c=getContentPane();(newBorderLayout();(field,;ata("query","Java").userAgent("M

31、ozilla").cookie("auth","token").timeout(3000).post();returndoc;)JavaMP3播放器主程序packageimportimportimportimportimportimportimportimportimportimportimportimportimportimportimportimportimportimportimportimportimportimportimportimportimportimportimportimportimportimportimportimpor

32、timportimportimportimportimportimportimportimportimportpublicclassMusicPlayerimplementsActionListener,Serializable,ControllerListener/*/privatestaticfinallongserialVersionUID=-L;privateJFrameframe=null;privateJPanelcontrolPanel=null;privateJButtonbtnPlay=null;privateJButtonbtnPre=null;privateJButton

33、btnNext=null;privateJScrollPanelistPane=null;privateJListlist=null;privateDefaultListModellistModel=null;privateJMenuBarmenubar=null;privateJMenumenuFile=null,menuAbout=null,menuMode=null;privateJMenuItemitemOpen,itemOpens,itemExit,itemAbout;privateJRadioButtonMenuItemitemSingle,itemSequence;private

34、ListItemcurrentItem=null;privatestaticPlayerplayer=null;privatebooleanisPause=false;privateintmode;privateintcurrentindex;dd(list);(newMouseAdapter()(publicvoidmouseClicked(MouseEvente)(if()=2)(if(player!=null)();(iconPlay);)currentindex=();currentitem=(Listitem)(currentindex);(currentindex);play();

35、);(newBorderLayout();(controlPanel,;(listPane,;(true);)OverridepublicvoidactionPerformed(ActionEvente)(if()=itemOpen)(etAbsolutePath();(item);)elseif()=itemOpens)oLowerCase().endsWith(".mp3”)|().toLowerCase().endsWith(".wav")returntrue;returnfalse;);for(Filefile:files)ListItemitem=new

36、ListItem(),file.getAbsolutePath();(item);)save(listModel);)elseif()=itemExit)(运行：appletviewertetris.记得用鼠标在界面上点击一下哈(这样才能响应键盘动作)左-j右-l旋转-i快速下落-u直接下落-k游戏结束后重新开始-s*/import.awt.*;import.applet.*;til.*;/把所有的internal替换成两个空格/把所有的替换成/把所有的,替换成/把所有的bool替换成boolean/不会在构造函数中给一维数组赋值:(/namespaceTetris/(classtetrisd

37、atas(privateintbricks3168,1224,1728,2244,3712,2188,736,3140,2272,1100,3616,3208,1248,1220,228,2248,3840,17476,3264;privateintstart_bricks=0,2,4,8,12,16,18;privateRandomrnd=newRandom();/int,arr=newint50,50;intarr=newint5050;intcur_brick=0,next_brick=0,cur_a=0,cur_b=0;inthight=22;privateintNewChange=0

38、;privateintMayDown=0;intNewHight=0;intlevel=0;intscore=0;intlines=0;intcur_color=0;intnext_color=0;publictetrisdatas()/bricks=newint193168,1224,1728,2244,3712,2188,736,3140,2272,1100,3616,3208,1248,1220,228,2248,3840,17476,3264;/start_bricks=newint70,2,4,8,12,16,18;cur_brick=start_bricks()%7+6)%7;ne

39、xt_brick=start_bricks()%7+6)%7;cur_color=()%7+6)%7+1;next_color=()%7+6)%7+1;cur_a=0;cur_b=4;intget_brick(intindex)returnbricksindex;booleanmay(inta,intb)booleanflag=true;intnum=brickscur_brick;a+=cur_a;b+=cur_b;for(inti=0;i<16;i+)if(num>>(15-i)&1)!=0)if(a+i/4>22)|(b+i%4<0)|(b+i%4&

40、gt;11)flag=false;break;if(arra+i/4b+i%4>0)flag=false;break;)returnflag;)voidmove(inta,intb)(cur_a+=a;cur_b+=b;)booleanmay_change()(booleanrel=true;booleanflag=false;intmid=cur_brick,midd=cur_brick;if(cur_brick=18)/如果是方块，则不能进行如下处理(旋转)，否则indexoutofrangereturnfalse;for(inti=0;i<7;i+)(if(mid+1=sta

41、rt_bricksi)(mid=start_bricksi-1;flag=true;break;)if(!flag)mid+;/方块旋转后，此处会有异常cur_brick=mid;if(may(0,0)(NewChange=cur_brick;)else(rel=false;)cur_brick=midd;returnrel;)voidchange()(cur_brick=NewChange;booleanmay_down()(MayDown=cur_a;for(inti=1;i<23-MayDown;i+)if(!may(i,0)(MayDown=i-1;break;returntru

42、e;voiddown()(cur_a+=MayDown;voidaddto()(intnum=brickscur_brick;for(inti=0;i<16;i+)(if(num>>(15-i)&1)!=0)(arrcur_a+i/4cur_b+i%4=cur_color;if(cur_a+i/4<hight)hight=cur_a+i/4;voidget_next()(cur_a=0;cur_b=5;cur_brick=next_brick;next_brick=start_bricks()%7+6)%7;cur_color=next_color;next_c

43、olor=()%7+6)%7+1;booleancancel()(intline=0;booleanflag;for(inti=cur_a;i<cur_a+4;i+)(flag=true;for(intj=0;j<12;j+)(if(arrij=0)(flag=false;break;if(flag)(line+;for(intk=i-1;k>=hight;k-)for(intj=0;j<12;j+)(arrk+1j=arrkj;arrkj=0;NewHight=hight+line;score+=line*line*10;if(score>(level+1)*2

44、00)(level+;if(level>9)level=9;if(line>0)(lines+=line;returntrue;elsereturnfalse;intget_speed()(return(500-level*45);voidnew_hight()(hight=NewHight;booleangameover()if(!may(0,0)returntrue;returnfalse;)voidclear()(for(inti=0;i<50;i+)for(intj=0;j<50;j+)arrij=0;level=0;score=0;lines=0;hight=

45、22;)/)/*classkeyhitextendsKeyListener(voidKeyPressed(KeyEvente)(voidKeyReleased(KeyEvente)(voidKeyTyped(KeyEvente)(*/publicclasstetrisextendsAppletimplementsRunnable(privateImagebgImage;privateGraphicsbg;intx=100;inty=20;intr=10;intgame_over=0;charkeyhit;privatetetrisdatastt=newtetrisdatas();publicvoidinit()(addKeyListener(newKeyAdapter()(this_keyPressed(e);)；)publicvoidstart()(Threadth=newThread(this);();publicvoidstop