MMO+Java：一、Java服务器相关基础知识：1、Java服务器项目准备

一、Java服务器项目准备

1.Java开发环境的安装

1：安装JDK，版本要求>=1.8。安装成功后进入命令窗口，输入java -version检查是否安装成功。
2：安装开发工具：Eclips

2.创建项目

1. 创建一个标准的空Jave项目

将项目转成Maven管理。右键项目，点击configure–>Convert to Maven Project。

2. 进入pom.xml(Mavejar包的核心管理文件)

1. 切换镜像到国内的阿里

<repositories>
	<repository>
		<id>alimaven</id>
		<name>aliyun maven</name>
		<url>http://maven.aliyun.com/nexus/content/groups/public</url>
	</repository>
</repositories>

如下图所示：

2. 切换字符集：统一utf-8

3.构建基于Maven的工程项目

1. 进入Maven镜像网站
2. 搜索自己需要的库，例如：netty，然后选择自己需要的版本的库，点击，然后复制Maven下代码块，如下：
   
3. 复制到pom.xml里面的固定标签内即可，保存后会自动帮你下载下来。
   
   4.依次找到所有需要的jar包代码，全部复制过去（具体每个的使用和作用，以后慢慢学习，慢慢记录）。

<!-- 日志系统 -->
			<dependency>
				<groupId>org.slf4j</groupId>
				<artifactId>slf4j-api</artifactId>
				<version>1.7.21</version>
			</dependency>
			<dependency>
				<groupId>org.slf4j</groupId>
				<artifactId>slf4j-log4j12</artifactId>
				<version>1.7.21</version>
			</dependency>
			<dependency>
				<groupId>log4j</groupId>
				<artifactId>log4j</artifactId>
				<version>1.2.17</version>
			</dependency>
			<dependency>
				<groupId>log4j</groupId>
				<artifactId>apache-log4j-extras</artifactId>
				<version>1.2.17</version>
			</dependency>
			
			<!-- https://mvnrepository.com/artifact/junit/junit -->
			<dependency>
				<groupId>junit</groupId>
				<artifactId>junit</artifactId>
				<version>4.12</version>
				<scope>test</scope>
			</dependency>
			
			<!-- 读取配置文件 -->
			<dependency>
				<groupId>dom4j</groupId>
				<artifactId>dom4j</artifactId>
				<version>1.6.1</version>
			</dependency>
			
  			<!-- 网关相关 -->
			<dependency>
				<groupId>io.netty</groupId>
				<artifactId>netty-all</artifactId>
				<version>4.1.33.Final</version>
			</dependency>
			
			<!-- 序列化/反序列化 -->
			<dependency>
				<groupId>com.baidu</groupId>
				<artifactId>jprotobuf</artifactId>
				<version>1.11.7</version>
			</dependency>
			<dependency>
				<groupId>com.baidu</groupId>
				<artifactId>jprotobuf-precompile-plugin</artifactId>
				<version>1.2.13</version>
			</dependency>
			
			<!-- 数据库相关 -->
			<dependency>
				<groupId>mysql</groupId>
				<artifactId>mysql-connector-java</artifactId>
				<version>6.0.5</version>
			</dependency>
			<dependency>
				<groupId>c3p0</groupId>
				<artifactId>c3p0</artifactId>
				<version>0.9.1.1</version>
			</dependency>

			<dependency>
				<groupId>com.cloudhopper.proxool</groupId>
				<artifactId>proxool-cglib</artifactId>
				<version>0.9.1</version>
			</dependency>

			<dependency>
				<groupId>com.cloudhopper.proxool</groupId>
				<artifactId>proxool</artifactId>
				<version>0.9.1</version>
			</dependency>

			<!-- 缓存 -->
			<dependency>
				<groupId>com.google.guava</groupId>
				<artifactId>guava</artifactId>
				<version>18.0</version>
			</dependency>
			
			<!-- quartz job调度器 -->
			<dependency>
				<groupId>org.quartz-scheduler</groupId>
				<artifactId>quartz</artifactId>
				<version>2.2.1</version>
			</dependency>
			<dependency>
				<groupId>org.quartz-scheduler</groupId>
				<artifactId>quartz-jobs</artifactId>
				<version>2.2.1</version>
			</dependency>
			<dependency>
				<groupId>javax.transaction</groupId>
				<artifactId>jta</artifactId>
				<version>1.1</version>
			</dependency>
			
			<!-- Redis客户端 -->
			<dependency>
				<groupId>redis.clients</groupId>
				<artifactId>jedis</artifactId>
				<version>2.9.0</version>
			</dependency>
			
			<!-- 其他 -->
			<dependency>
				<groupId>org.codehaus.groovy</groupId>
				<artifactId>groovy-all</artifactId>
				<version>2.4.11</version>
			</dependency>

			<dependency>
				<groupId>com.google.code.gson</groupId>
				<artifactId>gson</artifactId>
				<version>2.8.0</version>
			</dependency>

			<dependency>
				<groupId>org.codehaus.jackson</groupId>
				<artifactId>jackson-core-asl</artifactId>
				<version>1.8.5</version>
			</dependency>

			<dependency>
				<groupId>org.codehaus.jackson</groupId>
				<artifactId>jackson-mapper-asl</artifactId>
				<version>1.8.5</version>
			</dependency>

			
			<dependency>
				<groupId>org.apache.commons</groupId>
				<artifactId>commons-lang3</artifactId>
				<version>3.4</version>
			</dependency>
			<dependency>
				<groupId>org.apache.commons</groupId>
				<artifactId>commons-collections4</artifactId>
				<version>4.2</version>
			</dependency>

			<dependency>
				<groupId>org.simpleframework</groupId>
				<artifactId>simple-xml</artifactId>
				<version>2.7.1</version>
			</dependency>