Maven environment setup and required configuration and a brief introduction

Recently, the project has been completed, there is a lot of time, ready to review the previous knowledge, so that it can be used better in the future, start with maven, then build the following SSH+mybaTIs framework, and finish the Hadoop distribution related things. .

Configure the relevant environment variables of the computer before installation.

First, configure the maven environment

Download address: (window download (Binary zip))

Unzip maven and configure environment variables to open: Computer ------System Properties ------Advanced System Settings ------ Environment Variables

System variable new M2_HOME

Variable value E:\apache-maven-3.2.5 (maven decompression location)

Added in path

;%M2_HOME%\bin ----Add after the path;

Start cmd, enter mvm -v to view the version

Maven environment setup and introduction

Second, modify the local warehouse location

The default local repository location for maven is in the current user directory /.m2/repository, which we can configure to other disks.

Maven environment setup and introduction

This is configured under E:/m2/repository.

Then open cmd and run a simple maven command: mvn help:system Download the relevant maven information.

Third, configure Eclipse's maven plugin

1. Open Eclipse and select help----Install New Software------add

Name : m2e

locaTIon:

Choose to install all, as if the link site above is closed. Then use the following method:

Download the plugin zip package from my Baidu network disk: download

After downloading, unzip it: Copy the contents of the features and plugins folder to the corresponding features and plugins of Eclipse, and restart.

2, configure the user scope setTIng.xml

%M2_HOME%/conf/setTIng.xml is a global setting, all users on this computer will be affected, so copy %M2_HOME%/conf/setting.xml to the above configuration repository location like my F: Under the /m2 folder.

3, set the MAVEN_OPTS environment variable

When the project is too large, the OutOfMemoryError exception is easy to occur, so we need to modify the running content. There are two ways:

1) Add set MAVEN_OPTS= -Xms125m -Xmx512m to maven's bin/mvn.bat

2) Add the MAVEN_OPTS variable value to the environment variable -Xms125m -Xmx512m

Maven environment setup and introduction

4, configure Eclipse

In Window - Preferences - Maven

Installations tick off the default maven, add installed maven directory

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