ElasticSearch 6.x 学习笔记：23.Java API之Maven项目

23.1 创建maven项目

（1）新建工程项目

（2）选择maven类型

（3）输入名称

（4）确认maven安装路径

（5）项目路径

（6）构建maven工程

（7）构建完成

23.2 编辑pom.xml

参考官网，编写pom.xml
https://www.elastic.co/guide/en/elasticsearch/client/java-api/current/_maven_repository.html

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>

  <groupId>cn.hadron</groupId>
  <artifactId>esapi</artifactId>
  <version>1.0-SNAPSHOT</version>
  <packaging>jar</packaging>
  <name>esapi</name>
  <url>http://maven.apache.org</url>

  <properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
  </properties>

  <dependencies>

    <!-- https://mvnrepository.com/artifact/org.elasticsearch.client/transport -->
    <dependency>
      <groupId>org.elasticsearch.client</groupId>
      <artifactId>transport</artifactId>
      <version>6.1.1</version>
    </dependency>

    <!-- https://mvnrepository.com/artifact/org.apache.logging.log4j/log4j-core -->
    <dependency>
      <groupId>org.apache.logging.log4j</groupId>
      <artifactId>log4j-core</artifactId>
      <version>2.7</version>
    </dependency>
    <!-- https://mvnrepository.com/artifact/org.apache.logging.log4j/log4j-api -->
    <dependency>
      <groupId>org.apache.logging.log4j</groupId>
      <artifactId>log4j-api</artifactId>
      <version>2.7</version>
    </dependency>
    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>4.12</version>
      <scope>test</scope>
    </dependency>
  </dependencies>
</project>

23.3 配置log4j

（1）在maven项目的/src/main目录下新建resources目录（与java同级别），然后右键单击resources目录，选择“Mark Directory As”，并设置为Resources Root。

（2）在resources目录下新建log4j2.properties文件，编辑内容如下。

appender.console.type = console
appender.console.name = console
appender.console.layout.type = PatternLayout
rootLogger.level = info
rootLogger.appenderRef.console.ref =console