nutch mysql solr_Nutch2.1+mysql+solr3.6.1+中文网站抓取

1、mysql 数据库配置 linux mysql安装步骤省略。创建数据库与表 [sql] view plaincopyprint? CREATE DATABASE nutch DEFAULT CHARACTER SET utf8 DEFAULT COLLATE utf8_general_ci; CREATE TABLE `webpage`( `id` varchar (767) CHARACTER SET latin1 NOT N

1、mysql 数据库配置

linux mysql安装步骤省略。

创建数据库与表

[sql]

view plaincopyprint?

CREATE DATABASE nutch DEFAULT CHARACTER SET utf8 DEFAULT COLLATE utf8_general_ci;

CREATE TABLE `webpage` (

`id` varchar(767) CHARACTER SET latin1 NOT NULL,

`headers` blob,

`text` mediumtext DEFAULT NULL,

`status` int(11) DEFAULT NULL,

`markers` blob,

`parseStatus` blob,

`modifiedTime` bigint(20) DEFAULT NULL,

`score` float DEFAULT NULL,

`typ` varchar(32) CHARACTER SET latin1 DEFAULT NULL,

`baseUrl` varchar(512) CHARACTER SET latin1 DEFAULT NULL,

`content` mediumblob,

`title` varchar(2048) DEFAULT NULL,

`reprUrl` varchar(512) CHARACTER SET latin1 DEFAULT NULL,

`fetchInterval` int(11) DEFAULT NULL,

`prevFetchTime` bigint(20) DEFAULT NULL,

`inlinks` mediumblob,

`prevSignature` blob,

`outlinks` mediumblob,

`fetchTime` bigint(20) DEFAULT NULL,

`retriesSinceFetch` int(11) DEFAULT NULL,

`protocolStatus` blob,

`signature` blob,

`metadata` blob,

PRIMARY KEY (`id`)

) ENGINE=InnoDB DEFAULT CHARSET=utf8;

2、安装nutch2.1A、 nutch下载地址：http://apache.etoak.com/nutch/2.1/apache-nutch-2.1-src.zip

下载完成后家压缩，

B、以下将nutch的根目录定位${APACHE_NUTCH_HOME}.

C、配置nutch对mysql的支持，修改${APACHE_NUTCH_HOME}/ivy/ivy.xml文件

将这行的注释取消default”/>

修改${APACHE_NUTCH_HOME}/conf/gora.properties文件，

注释默认存储配置

[html]

view plaincopyprint?

###############################

# Default SqlStore properties #

###############################

#gora.sqlstore.jdbc.driver=org.hsqldb.jdbc.JDBCDriver

#gora.sqlstore.jdbc.url=jdbc:hsqldb:hsql://localhost/nutchtest

#gora.sqlstore.jdbc.user=sa

#gora.sqlstore.jdbc.password=

取消以下代码注释，

###############################

# MySQL properties

################################

gora.sqlstore.jdbc.driver=com.mysql.jdbc.Driver

gora.sqlstore.jdbc.url=jdbc:mysql://localhost:3306/nutch?createDatabaseIfNotExist=true

gora.sqlstore.jdbc.user=xxxxx(mysql用户名)

gora.sqlstore.jdbc.password=xxxxx(mysql密码)

D、修改${APACHE_NUTCH_HOME}/conf/nutch-site.xml 加入如下代码：

[html]

view plaincopyprint?

http.agent.namename>

Your Nutch Spidervalue>

property>

http.accept.languagename>

ja-jp, en-us,en-gb,en;q=0.7,*;q=0.3value>

Value of the “Accept-Language” request header field.

This allows selecting non-English language as default one to retrieve.

It is a useful setting for search engines build for certain national group.

description>

property>

parser.character.encoding.defaultname>

utf-8value>

The character encoding to fall back to when no other information

is availabledescription>

property>

storage.data.store.classname>

org.apache.gora.sql.store.SqlStorevalue>

The Gora DataStore class for storing and retrieving data.

Currently the following stores are available: ….

description>

property>

E、使用ant编译 ${APACHE_NUTCH_HOME} 。

F、设置待抓取的网站

cd ${APACHE_NUTCH_HOME}/runtime/local

mkdir -p urls

echo 'http://nutch.apache.org/' > urls/seed.txt

G、执行爬行操作： bin/nutch crawl urls -depth 3 -topN 5

执行完在mysql中即可以查看到爬虫抓取的内容

3、安装solr，对nutch抓取的内容进行索引

(注意：参考资料中推荐使用solr4.0版本，4.0的两个版本我都试了，没有成功，所以替换为3.6.1版本)

solr下载地址：http://www.fayea.com/apache-mirror/lucene/solr/3.6.1/apache-solr-3.6.1.zip

A、解压缩下载包，

B、下载

http://nlp.solutions.asia/wp-content/uploads/2012/08/schema.xml替换${APACHE_SOLR_HOME}/example/solr/conf/schema.xml.

C、启动solr

cd ${APACHE_SOLR_HOME}/example

java -jar start.jar

D、在浏览器输入地址http://localhost:8983/solr 测试是否启动成功。

E、另起linux终端，输入如下命令，使solr对nutch抓取内容进行索引。

cd ${APACHE_NUTCH_HOME}/runtime/local/

bin/nutch solrindex http://127.0.0.1:8983/solr/ -reindex

4、测试

在浏览器输入

http://localhost:8983/solr ，看到如下界面：

test.jsp?url=http%3A%2F%2Fstatic.oschina.net%2Fuploads%2Fspace%2F2012%2F1011%2F140241_FzQU_734002.gif&refer=http%3A%2F%2Fblog.csdn.net%2Fjinyeweiyang%2Farticle%2Fdetails%2F10973803