Tomcat源码解析（1）下载源码与导入eclipse

     自从写web程序以来，web程序是如何在Tomcat中运行的一直困惑着我，不知道底层的运行机制是无法真正理解web的，所以就开始研究Tomcat源码，Tomcat是一个轻量级的java服务器，再结合《How Tomcat works》和网上大牛博客之后，也算知道了内部的运行架构。

    首先去官网下载Tomcat源码，我下载的是apache-tomcat-7.0.63-src（在这里下载），因为源码使用ant和maven管理的，所以要用ant或者maven编译为eclipse工程。ant方法编译时有好多错误，又麻烦，所以这里介绍用maven将其编译。

    首先将下载的apache-tomcat-7.0.50-src.tar.gz解压到tomcat目录中，然后在tomcat目录中创建一个pom.xml文件，内容如下：

<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/maven-v4_0_0.xsd">    <modelVersion>4.0.0</modelVersion>    <groupId>net.imtiger</groupId>    <artifactId>tomcat-study</artifactId>    <name>Tomcat 7.0 Study</name>    <version>1.0</version>    <packaging>pom</packaging>    <modules>        <module>apache-tomcat-7.0.63-src</module>    </modules></project>

<?xml version="1.0" encoding="UTF-8"?><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>org.apache.tomcat</groupId>    <artifactId>Tomcat7.0</artifactId>    <name>Tomcat7.0</name>    <version>7.0</version>    <build>        <finalName>Tomcat7.0</finalName>        <sourceDirectory>java</sourceDirectory>        <testSourceDirectory>test</testSourceDirectory>        <resources>            <resource>                <directory>java</directory>            </resource>        </resources>        <testResources>            <testResource>                <directory>test</directory>            </testResource>        </testResources>        <plugins>            <plugin>                <groupId>org.apache.maven.plugins</groupId>                <artifactId>maven-compiler-plugin</artifactId>                <version>2.3</version>                <configuration>                    <encoding>UTF-8</encoding>                    <source>1.6</source>                    <target>1.6</target>                </configuration>            </plugin>        </plugins>    </build>    <dependencies>        <dependency>            <groupId>junit</groupId>            <artifactId>junit</artifactId>            <version>4.4</version>            <scope>test</scope>        </dependency>        <dependency>            <groupId>ant</groupId>            <artifactId>ant</artifactId>            <version>1.7.0</version>        </dependency>        <dependency>            <groupId>wsdl4j</groupId>            <artifactId>wsdl4j</artifactId>            <version>1.6.2</version>        </dependency>        <dependency>            <groupId>javax.xml</groupId>            <artifactId>jaxrpc</artifactId>            <version>1.1</version>        </dependency>        <dependency>            <groupId>org.eclipse.jdt.core.compiler</groupId>            <artifactId>ecj</artifactId>            <version>4.2.2</version>        </dependency>    </dependencies></project>