tomcat7.070 源码及转成eclipse工程

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1、从tomcat官网下载 tomcat源码 apache-tomcat-7.0.70-src.zip

2、由于用ant构建成eclipse工程时出现各种问题，现改为用maven构建，

在根目录下建立pom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>apache-tomcat-7.0.70-src</artifactId>
<name>apache-tomcat-7.0.70-src</name>
<version>7.0</version>

<build>
<finalName>Tomcat7.0</finalName>
<sourceDirectory>java</sourceDirectory>
<resources>
<resource>
<directory>java</directory>
</resource>
</resources>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>2.3</version>
<configuration>
<encoding>UTF-8</encoding>
<source>1.7</source>
<target>1.7</target>
</configuration>
</plugin>
</plugins>
</build>

<dependencies>
<dependency>
<groupId>ant</groupId>
<artifactId>ant</artifactId>
<version>1.7.0</version>
</dependency>
<dependency>
<groupId>ant</groupId>
<artifactId>ant-apache-log4j</artifactId>
<version>1.6.5</version>
</dependency>
<dependency>
<groupId>ant</groupId>
<artifactId>ant-commons-logging</artifactId>
<version>1.6.5</version>
</dependency>
<dependency>
<groupId>wsdl4j</groupId>
<artifactId>wsdl4j</artifactId>
<version>1.6.2</version>
</dependency>

<dependency>
<groupId>javax.xml</groupId>
<artifactId>jaxrpc-api</artifactId>
<version>1.1</version>
</dependency>
<dependency>
<groupId>org.eclipse.jdt.core.compiler</groupId>
<artifactId>ecj</artifactId>
<version>4.4</version>
</dependency>
</dependencies>
</project>

3、导入eclipse

4、启动tomcat,

找到Bootstrap类，以main方法形式启动

5、可能会报如下错误

java.lang.ClassNotFoundException: listeners.ContextListener

java.lang.ClassNotFoundException: listeners.SessionListener

这是由于tomcat启动时加载了webapps下面的example项目，而example中对应的 listeners.ContextListener等类没有编译，还是.java文件，所以抛错，解决办法是把example删除，或者是从其他tomcat中拷一份编译过的文件替换(下载一个可运行的相同版本的tomcat，用它的example替换即可)

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