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ubuntu中tomcat更改80端口(tomcat修改port �?80 �?无法讉K��)

漂漂 — Thu, 05 May 2011 02:55:00 GMT

原文地址�Q?a >http://alanjiang.iteye.com/blog/737563

最�q�新装了一台ubuntu服务器，版本�?0.04�Q�选择�pȝ��自带的LAMP应用

装好后通过www.4088.cn:8080可以正常讉K��Q?4088.cn是我的手机域�?

但当更改/etc/tomcat6/server.xml中的

port=8080更改为port=80后，保存从新启动�Q�发现无法直接通过www.4088.cn�q�行讉K��

通过命��onetstat -ant��查服务器发现开启的端口中没�?0端口

后来��查资料发��C��ubuntu10.04��P��默认是关�?024一下的端口

需要手工打开�Q�关于tomcat的打开�Q�可以到�~�辑/etc/default/tomcat6中的最后一行AUTHBIND=yes来实�?/p>

默认�?AUTHBIND=no

具体操作步骤如下�Q?/p>

1、sudo vi /etc/tomcat6/server.xml�Q�修改�ؓport="80"

2、sudo vi /etc/default/tomcat6 �Q�修改�ؓAUTHBIND=yes

3、sudo /etc/init.d/tomcat6 restart�Q�进行重新启�?/p>

4、netstat -ant�Q�查�?0端口是否��h��

5、手机可以正常访�?a style="color: #108ac6; text-decoration: underline;">www.4088.cn�?/p>

漂漂 2011-05-05 10:55 发表评论

在ubuntu10.04上面配置nutch-1.0 (ubuntu 配置 nutch)

漂漂 — Wed, 04 May 2011 05:34:00 GMT

原文地址�Q�http://my.chinaunix.net/space.php?uid=24488136&do=blog&id=64821

在书店去逛的时候，偶然看到了搜索专区的书，都是搜烦引擎斚w��的，��M��下，感觉蛮有意思的�Q�回来就baidu,google了下自己动手做搜索引擎，感觉开源的nutch-1.0蛮好�Q�我��学习配�|�了下，遇到了一些问题，不过很快解决了�?img src="http://www.cublog.cn/images/face/005.gif">

�q�行环境�Q?br>

Linux **-desktop 2.6.32-25-generic #44-Ubuntu SMP Fri Sep 17 20:26:08 UTC 2010 i686 GNU/Linux ubuntu 10.04

1.安装JDK

因�ؓubuntu10.04自己自带了jdk(叫做openjdk)�Q�所以我��q��接用的是自带的jdk。可以直接去新立徯��Y件包里面安装。安装完后在/usr/lib/jvm文�g夹下面你��׃��发现有下�?个文件夹。当然你也可以直接去下蝲官方最新的jdk.

├── default-java -> java-6-openjdk ├── java-1.6.0-openjdk -> java-6-openjdk └── java-6-openjdk

2.安装�q�且配置tomcat,在ubuntu10.04中，tomcat的版本是tomcat6,我还安装了管理��Y件tomcat6-admin

apt-get install tomcat6 tomcat6-admin

安装好tomcat之后�Q�输�?etc/init.d/tomcat6 start启动tomcat服务器。在��览器中输入"http://localhost:8080"�Q�如果显�C?#8220;it works”说明tomcat服务器正在运行�?br>

It works !

If you're seeing this page via a web browser, it means you've setup Tomcat successfully. Congratulations!

This is the default Tomcat home page. It can be found on the local filesystem at: /var/lib/tomcat6/webapps/ROOT/index.html Tomcat6 veterans might be pleased to learn that this system instance of Tomcat is installed with CATALINA_HOME in /usr/share/tomcat6 and CATALINA_BASE in /var/lib/tomcat6, following the rules from /usr/share/doc/tomcat6-common/RUNNING.txt.gz. You might consider installing the following packages, if you haven't already done so:

tomcat6-docs: This package installs a web application that allows to browse the Tomcat 6 documentation locally. Once installed, you can access it by clicking here.

tomcat6-examples: This package installs a web application that allows to access the Tomcat 6 Servlet and JSP examples. Once installed, you can access it by clicking here.

tomcat6-admin: This package installs two web applications that can help managing this Tomcat instance. Once installed, you can access the manager webapp and the host-manager webapp. NOTE: For security reasons, using the manager webapp is restricted to users with role "manager". The host-manager webapp is restricted to users with role "admin". Users are defined in /etc/tomcat6/tomcat-users.xml.

需要配�|�用��h��可以�q�入��理界面�Q�修�?var/lib/tomcat6/conf/tomcat-users.xml

��Z��安全考虑�Q�把默认的用户tomcat删掉了，�q�添加了自己的用��P��比如hinutch,��d��密码�Q�比�?838438

<?xml version='1.0' encoding='utf-8'?> <tomcat-users> <role rolename="manager"/> <role rolename="admin"/> <user username="hinutch" password="3838438" roles="admin,manager"/> </tomcat-users>

�q�个时候你��可以进�ȝ��理界面了�Q�如果不行的话，重启tomcat服务/etc/init.d/tomcat6 restart

��理界面如下�Q?/span>

Tomcat Web Application Manager

Message:

OK

Manager
List Applications	HTML Manager Help	Manager Help	Server Status

Applications
Path	Display Name	Running	Sessions	Commands
/		true	0	Start Stop Reload Undeploy
				with idle ≥ minutes
/host-manager	Tomcat Manager Application	true	0	Start Stop Reload Undeploy
				with idle ≥ minutes

3.安装nutch1.0

下蝲nutch-1.0.tar.gz�Q�网址http://www.apache.org/dyn/closer.cgi/nutch/

 apache-nutch-1.2-bin.zip        25-Sep-2010 05:38  164M
 apache-nutch-1.2-bin.zip.asc    25-Sep-2010 05:37  203
 apache-nutch-1.2-src.tar.gz     25-Sep-2010 05:37   50M  GZIP compressed document
 apache-nutch-1.2-src.tar.gz.asc 25-Sep-2010 05:37  203   GZIP compressed document
 apache-nutch-1.2-src.zip        25-Sep-2010 05:37   51M
 apache-nutch-1.2-src.zip.asc    25-Sep-2010 05:37  203
 nutch-0.9.tar.gz                05-Apr-2007 10:17   68M  GZIP compressed document
 nutch-0.9.tar.gz.asc            05-Apr-2007 10:17  186   GZIP compressed document
 nutch-1.0.tar.gz                28-Mar-2009 04:12   83M  GZIP compressed document
 nutch-1.0.tar.gz.asc            28-Mar-2009 04:12  197   GZIP compressed document

解压出来�Q�我上面的是�Q?br>

├── bin ├── build.xml ├── CHANGES.txt ├── conf ├── crawled ├── default.properties ├── docs ├── KEYS ├── lib ├── LICENSE.txt ├── logs ├── NOTICE.txt ├── nutch-1.0.jar ├── nutch-1.0.job ├── nutch-1.0.war ├── plugins ├── README.txt ├── src ├── url.txt�Q�这个是自己建的�Q?/span> └── webapps

首先在Nutch的解压根目录下新��Z��个文本文�Ӟ��命名�?#8220;url.txt”�Q�这个名字你可以随便取）。里面放的是你需要抓取信息的�|�址�?br>

我的解压根目录�ؓ/home/**/nutch-1.0,新徏一个url.txt�Q�里面输入：

http://bbs.chinaunix.net/

其次更新配置文�gcrawl-urlfilter.txt�Q�打开“conf/crawl-urlfilter.txt”�Q?br>

# skip URLs with slash-delimited segment that repeats 3+ times, to break loops -.*(/[^/]+)/[^/]+\1/[^/]+\1/ # accept hosts in MY.DOMAIN.NAME +^http://bbs.chinaunix.net/�Q?span style="color: #ff0102;">�q�个��是需要修改的�Q�和url.txt里面内容一�?/span>�Q?br>

再打开nutch-site.xml文�g�Q�修改如下，

<?xml version="1.0"?> <?xml-stylesheet type="text/xsl" href="configuration.xsl"?> <configuration> <property> <name>http.agent.name</name> <value>my nutch agent</value>�Q?span style="color: #ff0102;">�U�色部分可以自己命名�Q?/span> </property> <property> <name>http.agent.version</name> <value>1.0</value> </property> </configuration>~

然后�q�行�|�络蜘蛛抓紧�|�页。在/home/**/nutch-1.0�Q�即文�g根目录）输入以下命��o�Q?br>

./bin/nutch crawl url.txt -dir crawled -depth 4 -topN 100 -threads 4 -dir = crawled 指明下蝲数据存放路径�Q�该目录不存在时�Q�会被自动创�?br> -depth = 4 下蝲深度�? -topN = 100 下蝲�W�合条�g的前100个页�?br> -threads = 4 启动的线�E�数�?/span>

蜘蛛�q�行时会输出大量数据�Q�抓取结束之后，可以发现crawled目录被生成，里面有几个目录�?

├── crawldb ├── index ├── indexes ├── linkdb └── segments

4.在tomcat中部�|�nutch��目

��nutch根目录下的nutch-1.0.war文�g攄��?var/lib/tomcat6/webapps文�g夹下�Q�然后再讉K��http://localhost:8080�Q�tomcat便会��其解压�?br>

root@**-desktop:/var/lib/tomcat6/webapps# ls nutch-1.0 nutch-1.0.war ROOT

nutch-1.0文�g夹下包含�Q?br>

├── anchors.jsp ├── ca ├── cached.jsp ├── cluster.jsp ├── de ├── en ├── es ├── explain.jsp ├── fi ├── fr ├── hu ├── img ├── include ├── index.jsp ├── it ├── jp ├── META-INF ├── more.jsp ├── ms ├── nl ├── pl ├── pt ├── refine-query-init.jsp ├── refine-query.jsp ├── search.jsp ├── sh ├── sr ├── sv ├── text.jsp ├── th ├── WEB-INF�Q�要修改该文件夹下面的内容） └── zh

修改此目录下的WEB-INF/classes/nutch-site.xml�Q�修改如下：

<?xml version="1.0"?> <?xml-stylesheet type="text/xsl" href="nutch-conf.xsl"?>  <nutch-conf> <property> <name>searcher.dir</name> <value>/home/**/nutch-1.0/crawled</value> </property> </nutch-conf>

上面的value要改成蜘蛛的下蝲目录�?br>
5.使用nutch搜烦
在浏览器中输入http://localhost:8080/nutch-1.0�Q�出��C��面的界面�Q?/span>

��?/a>

常见问题

ca | de | en | es | fi | fr | hu | it | jp | ms | nl | pl | pt | sh | sr | sv | th | zh

然后在搜索框里面输入你要查找的东西，比如�Q�linux,会出玎ͼ�

��?/a>

常见问题

�W?strong>1-1��?(共有 1 ��Ҏ(gu��)��询结�?:

论坛首页 - 中国最大的Linux/Unix技术社�?- IT人的�|�上�C�֌� - bbs.ChinaUnix.net
... Unix操作�pȝ�� ← Linux论坛 RSS订阅 ... by CU��理�?Linux时代首页 Linux ...
http://bbs.chinaunix.net/ (�|�页快照) (评分详解) (anchors)

RSS

ca | de | en | es | fi | fr | hu | it | jp | ms | nl | pl | pt | sh | sr | sv | th | zh

整个�q�程��完成了�?/span>

------------------------------------------------
| �q�程中出现的问题 |
------------------------------------------------
1.说找不到JAVA_HOME
解决�Ҏ(gu��)��Q�修�?etc/environment文�g�Q�添加JAVA_HOME;

PATH="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games" JAVA_HOME="/usr/lib/jvm/java-6-openjdk"

2.信息是抓取了�Q�但是搜索不出来东西
解决�Ҏ(gu��)��Q�除了修改以上的东西外，有个文�g�q�得注意�?/home/**/nutch-1.0/conf/nutch-default.xml,扑ֈ�下面的部分，然后参照修改

 <property> <name>searcher.dir</name> <value>/home/**/nutch-1.0/crawled</value>�Q�一定要是存抓取信息的�\径） <description>

有时候出不来�l�果�Q�还得运行：

/etc/init.d/tomcat6 restart

呵呵�Q�就�q�么多了�Q�！�Q?img src="http://www.cublog.cn/images/face/027.gif">

漂漂 2011-05-04 13:34 发表评论

漂漂 — Wed, 04 May 2011 05:28:00 GMT

原文地址�Q�http://www.softbunny.net/post/mirror_163_com_ubuntu_apt_deb.shtml

刚刚看到一��?a target="_blank">�Q�隐藏在�|�易的开源��Y仉��象站点＞�Q�想到用�|�易的源来升�U�Ubuntu会不会速度快一点？

先是�?#8220;�pȝ��Q�系�l�管理－软�g源－�W�三方��Y�?#8220;里一行一行地��d��Q�但实在太麻烦了�Q�还是从控制��C��输入”sudo gedit /etc/apt/sources.list“直接�~�辑apt的Sources.list更快。在文�g最后添加以下几行：

deb http://mirrors.163.com/ubuntu/ intrepid main restricted universe multiverse
deb http://mirrors.163.com/ubuntu/ intrepid-security main restricted universe multiverse
deb http://mirrors.163.com/ubuntu/ intrepid-updates main restricted universe multiverse
deb http://mirrors.163.com/ubuntu/ intrepid-proposed main restricted universe multiverse
deb http://mirrors.163.com/ubuntu/ intrepid-backports main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ intrepid main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ intrepid-security main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ intrepid-updates main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ intrepid-proposed main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ intrepid-backports main restricted universe multiverse

�q�样一来就一�ơ性地把所需的命令全加入了。记得保存退出�?/p>

试了一下，发现速度明显比原来要快了好多 �Q�我在虚机里装的Ubuntu�Q�用�|�易的源升��旉��度基本上能保持�?4K左右�Q�远比以前的十几K要快得多�?/p>

另外�Q�Felix分析�Q?a target="_blank">163的源�~�少部分软�g�?/a>�Q�不�q�，应该已��够用的了�?/p>

漂漂 2011-05-04 13:28 发表评论

ubuntu c++下连接mysql数据库和数据库的使用

漂漂 — Tue, 03 May 2011 05:34:00 GMT

原文地址�Q?http://blog.sina.com.cn/s/blog_494e45fe0100k9p8.html

安装MySQL
代码:
sudo apt-get install mysql-server mysql-client

�q�个时候ubuntu不会像windows那样会出现c api�Q�要�l�箋安装api

�?span style="WIDOWS: 2; TEXT-TRANSFORM: none; TEXT-INDENT: 0px; BORDER-COLLAPSE: separate; FONT: medium Tahoma; WHITE-SPACE: normal; ORPHANS: 2; LETTER-SPACING: normal; COLOR: rgb(0,0,0); WORD-SPACING: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px">装开发包
代码:
sudo apt-get install libmysqlclient15-dev

代码:
#include

�~�译�Ҏ(gu��)��Q?br clear=none>代码:
gcc $(mysql_config --cflags) xxx.c -o xxx $(mysql_config --libs)

#include <mysql.h>
#include <stdio.h>
main() {
    MYSQL *conn;
    MYSQL_RES *res;
    MYSQL_ROW row;
   char *server = "localhost";
   char *user = "root";
   char *password = "";
   char *database = "mysql";
    conn = mysql_init(NULL);

   if (!mysql_real_connect(conn, server,
          user, password, database, 0, NULL, 0)) {
      fprintf(stderr, "%s\n", mysql_error(conn));
      exit(1);
   }

   if (mysql_query(conn, "show tables")) {
      fprintf(stderr, "%s\n", mysql_error(conn));
      exit(1);
   }
    res = mysql_use_result(conn);

   printf("MySQL Tables in mysql database:\n");
   while ((row = mysql_fetch_row(res)) != NULL)
      printf("%s \n", row[0]);

    mysql_free_result(res);
    mysql_close(conn);
}

会输出现有数据库和表内容�?/span>

eclipse下要��d��include路径�Q�和链接库�\径，

�q�需要添加对 -lmysqlclient -lm两个参数

��目->属�?>C/C++Build -> settings -> gcc c linker-> libraries

libraries(l) 中添加两个参数mysqlclient和m

不然�q�是出项找不到mysql_init()的错误�?

漂漂 2011-05-03 13:34 发表评论

Ubuntu 安装Eclipse CDT IDE for C/C++

漂漂 — Tue, 03 May 2011 05:24:00 GMT

首先到Eclipse官网http://www.eclipse.org/downloads/?osType=linux下蝲

然后打开�l�端�Q��{到压�~�包所在目录下�Q�输入指令tar zvxf eclipse-cpp-helios-SR1-linux-gtk.tar.gz解压得到Eclipse文�g夹，

转到该目录下执行./eclipse�Q�就正常�q�行Eclipse�?

漂漂 2011-05-03 13:24 发表评论