Lucene JDK for Linux Configuration

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• Configure and apply Lucene 2.9.1 in Red Hat Linux 9

Configure and apply Lucene 2.9.1 in Red Hat Linux 9   Label: Linux Lucene

Configure and apply Lucene 2.9.1 in Red Hat Linux 9

 

1. Environment Introduction. 1

2. Configuration prerequisites. 1

2.1 install JDK 1.6 1

3 configure Lucene 2

3.1 install ant (optional) 2

3.2 install javacc (optional) 2

3.3 unzip and install Lucene 2

3.3 build Lucene (optional) 3

3.4 configure Lucene environment variables. 3

4 test Lucene 4

 

1. Environment Introduction

Operating System: Red Hat Linux 9.0

Lucene version: lucene-2.9.1 download http://apache.etoak.com/lucene/java/

2. Configure prerequisite 2.1 to install JDK 1.6

Step 1: # chmod + x jdk-1_6_0_13-linux-i586-rpm.bin (this command is used to get execution permissions)

Step 2: #./jdk-1_6_0_13-linux-i586-rpm.bin (used to generate the RPM installation package)

Step 3: # rpm-IVH jdk-1_6_0_13-linux-i586.Rpm (this command is used to install JDK)

After installation,Install JDK in the/usr/Java/directory. (This directory will be created during installation)

Last step: configure the JDK environment variables.

1): # vi/etc/profile. d/Java. Sh (this file is opened in the VI editor)

2): Enter the content in Java. Sh.

# Set Java environment

Export java_home =/usr/Java/jdk1.6.0 _ 13

Export classpath =.: $ java_home/lib: $ java_home/JRE/lib

Export Path = $ java_home/bin: $ java_home/JRE/bin: $ path

3): # chmod + x/etc/profile. d/Java. Sh

In this case, the configuration is complete.

We recommend that you set environment variables in/etc/profile.

[Root @ red-hat-9 root] # vi/etc/profile

Add the following statement:

Java_home =/usr/Java/jdk1.6.0 _ 13 Export java_home Classpath =.: $ java_home/lib: $ java_home/JRE/lib (note the colon) Export classpath Path = $ java_home/bin: $ java_home/JRE/bin: $ path

[Root @ red-hat-9 root] # chmod + x/etc/profile (Execution permission)

[Root @ red-hat-9 root] # source/etc/profile (effective later)

3. Configure javase3.1 to install ant (optional)

(1) download APACHE-ant-1.7.1 to a directory (for example,/root ),

Http://apache.etoak.com/ant/binaries/apache-ant-1.7.1-bin.tar.gz

(2) unzip the package to a directory (/zkl/programe)

[Root @ red-hat-9 root] # tar zxvf apache-ant-1.7.1-bin.tar.gz

[Root @ red-hat-9 root] # mv APACHE-ant-1.7.1/zkl/programe

(3) set ant Environment Variables

[Root @ red-hat-9 root] # vi/etc/profile

Add the following statement

Ant_home =/zkl/Program/Apache-ant-1.7.1 Export ant_home Path = $ path: $ ant_home/bin

[Root @ red-hat-9 root] # source/etc/profile (effective later)

3.2 install javacc (optional)

(1) download javacc-5.0 (javacc official website is https://javacc.dev.java.net /)

Https://javacc.dev.java.net/files/documents/17/138911/javacc-5.0.tar.gz

(2) unzip the package to a directory/zkl/Program

[Root @ red-hat-9 root] # gunzip javacc-5.0.tar.gz

[Root @ red-hat-9 root] # tar-xvf javacc-5.0.tar

[Root @ red-hat-9 root] # mv javacc-5.0/zkl/Program

3.3 unzip and install Lucene

(1) download lucene-2.9.1

Http://apache.etoak.com/lucene/java/lucene-2.9.1.tar.gz

(2) decompress the package to a directory/zkl/IR/Lucene

[Root @ red-hat-9 root] # tar xf lucene-2.9.1.tar.gz
[Root @ red-hat-9root] # mv lucene-2.9.1/zkl/IR/Lucene

(3) After completion, Lucene's main directory is/zkl/IR/Lucene/lucene-2.9.1

3.3 build Lucene (optional)

This step is not required, because the downloaded Lucene has actually been built.
(1) another user's main directory ~ /To generate the build. properties file and write it to the javacc main directory.

[Root @ red-hat-9 root] # cd/zkl/IR/Lucene/lucene-2.9.1
[Root @ red-hat-9 lucene-2.9.1] #

Echo "javacc. Home =/zkl/Program/javacc-5.0"> ~ /Build. Properties

(2) Run ant to build
[Root @ red-hat-9 lucene-2.9.1] #/zkl/Program/Apache-ant-1.7.1/bin/ant

Buildfile: Build. xml

Jar. Core-check:

Compile-demo:

Build successful (built successfully)

Total time: 0 seconds

3.4 configure Lucene Environment Variables

[Root @ red-hat-9 root] # vi/etc/profile

Add the following statement

Export e_home =/zkl/IR/Lucene/lucene-2.9.1 Classpath =.: $ java_home/lib: $ java_home/JRE/lib: $ e_e_home/lucene-core-2.9.1.jar: $ lucene_home/lucene-demos-2.9.1.jar (Note: Colon)

[Root @ red-hat-9 root] # source/etc/profile (effective later)

The Environment Changes in/etc/profileare as follows (see profile.txt ):

4. Test Lucene

(1) Use indexfiles in src/demo to create an index and use searchfiles to search

After this example is run, the Directory Index that stores the created index will be created under the/zkl/IR/Lucene/lucene-2.9.1/src/demo directory, and the index will be deleted first when re-running. Searchfiles searches for files based on the created index stored in the demo/index. Enter the keyword.

① First, I create a/zkl/IR/index_files directory to store the files that need to be indexed. I create some files under the directory;

② Then I call the demo example, first enter the demo directory, and then execute the following command

Java ORG/Apache/Lucene/demo/indexfiles/zkl/IR/index_files/

This indexes the files in the/zkl/IR/index_files/directory and stores them in demo/index;

Run the following command to search for files:

Java ORG/Apache/Lucene/demo/searchfiles

③ If the two commands are allowed to receive an exception prompt, it indicates that the Lucene environment variable has a problem. If an exception occurs, it indicates that the Java environment variable is OK,

When executing commands, note that Java ORG/Apache/Lucene/demo/searchfiles

Here is searchfiles, rather than searchfiles. java.

When you enter the org/Apache/Lucene/demo/directory, you will find that the directory contains only a few. java files, they do not compile how to run it, in fact, this is because luncene has already packaged the demo into a lucene-demos-2.9.1.jar, And you introduced in the classpath environment variables, so can run.

④ When you run searchfiles, each time you enter a keyword, the query ends, you need to press ENTER below, then enter the keyword, and then perform the next query.