Tomcat源码导入IDEA

1、环境配置

JDK8+
Maven
Windows/Mac
Tomcat环境

2、导入步骤

下载Tomcat源码，可以从svn上下载

在下载的源码目录中新建pom.xml文件，文件内容如下：

  <?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>Tomcat8.0</artifactId>
      <name>Tomcat8.0</name>
      <version>8.0</version>
      <build>
          <finalName>Tomcat8.0</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>1.8</source>
                      <target>1.8</target>
                  </configuration>
              </plugin>
          </plugins>
      </build>
      <dependencies>
          <dependency>
              <groupId>junit</groupId>
              <artifactId>junit</artifactId>
              <version>4.12</version>
              <scope>test</scope>
          </dependency>
          <dependency>
              <groupId>org.easymock</groupId>
              <artifactId>easymock</artifactId>
              <version>3.4</version>
          </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>4.5.1</version>
          </dependency>
      </dependencies>
  </project>

将该工程导入到idea中，这时如果尝试其他tomcat会报错(org.apache.catalina.startup.Bootstrap#main)
需要设置一个运行时的 catalina_home目录，需要下载一个tomcat软件的压缩包，下载跟你源代码对应的tomcat软件；
将该tomcat软件放在和源码同一级目录，建一个和该目录平行的目录catalina-home，将tomcat软件解压后，在解压的目录下，将以下目录拷贝到catalina-home中：
```
  bin
  conf
  lib
  logs
  temp
  webapps
  work
```
最终目录结构是这样的：
```
  |-catalina_home
  |-tomcat8
```