Nutch2.1+mysql+solr3.6.1安装部署

1、mysql 数据库配置

    linux mysql安装步骤省略。

    创建数据库与表

    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nutch2.1
A、 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<dependency org=”mysql” name=”mysql-connector-java” rev=”5.1.18″ conf=”*->default”/>

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

        注释默认存储配置

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

# 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：

<property>

<name>http.agent.name</name>

<value>Your Nutch Spider</value>

</property>

<property>

<name>http.accept.language</name>

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

<description>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>

<property>

<name>parser.character.encoding.default</name>

<value>utf-8</value>

<description>The character encoding to fall back to when no other information

is available</description>

</property>

<property>

<name>storage.data.store.class</name>

<value>org.apache.gora.sql.store.SqlStore</value>

<description>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：

在文本框中输入 content:nutch 点击查询，便可查处内容中包含nutch关键字的网页