Tomcat7源码环境搭建

一、下载Tomcat7源码

从官网上下载Tomcat源码， http://mirror.bit.edu.cn/apache/tomcat/tomcat-7/v7.0.70/src/apache-tomcat-7.0.70-src.zip

下载之后，将源码解压后重名为tomcat-src，放在E盘的tomcat7目录下.

二、安装Ant

因Tomcat源码需要ant编译，所以需要安装Ant，从官网下载后解压，并配置环境变量即可.

三、安装JDK6

tomcat7的编译需要JDK6的环境，JDK7以及以上,ant 编译时会报错.

四、用Ant工具编译Tomcat源码

打开cmd命令行工具，进入tomcat源码目录，输入ant ide-eclipse ，然后按下Enter键，会自动下载编译需要的依赖包.

testexist:
     [echo] Testing  for C:\Users\yulei/tomcat-build-libs/objenesis-1.2/objenesis-1.2.jar

downloadzip:
      [get] Getting: https://objenesis.googlecode.com/files/objenesis-1.2-bin.zip
      [get] To: C:\Users\yulei\tomcat-build-libs\download-1649634615.zip
      [get] Error getting https://objenesis.googlecode.com/files/objenesis-1.2-bin.zip to C:\Users\yulei\tomcat-build-libs\download-16496

BUILD FAILED
E:\tomcat7\tomcat_src\build.xml:2697: The following error occurred while executing this line:
E:\tomcat7\tomcat_src\build.xml:2848: java.net.ConnectException: Connection timed out: connect
        at java.net.PlainSocketImpl.socketConnect(Native Method)
        at java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:351)
        at java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:213)
        at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:200)
        at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:366)
        at java.net.Socket.connect(Socket.java:529)
        at com.sun.net.ssl.internal.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:570)
        at com.sun.net.ssl.internal.ssl.BaseSSLSocketImpl.connect(BaseSSLSocketImpl.java:141)
        at sun.net.NetworkClient.doConnect(NetworkClient.java:163)
        at sun.net.www.http.HttpClient.openServer(HttpClient.java:411)
        at sun.net.www.http.HttpClient.openServer(HttpClient.java:525)
        at sun.net.www.protocol.https.HttpsClient.<init>(HttpsClient.java:272)
        at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:329)
        at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:172)
        at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:923)
        at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:158)
        at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:133)
        at org.apache.tools.ant.taskdefs.Get$GetThread.openConnection(Get.java:728)
        at org.apache.tools.ant.taskdefs.Get$GetThread.get(Get.java:641)
        at org.apache.tools.ant.taskdefs.Get$GetThread.run(Get.java:631)

Total time: 1 minute 58 seconds

可以看见，编译报错了，是因为从国外网站下载依赖的objenesis-1.2-bin.zip超时了，导致编译失败.

解决办法，FQ下载objenesis-1.2-bin.zip文件，这里为了方便，为大家提供了下载地址：http://pan.baidu.com/s/1kUWtA8v

将其解压后放在C:\Users\yulei\tomcat-build-libs 目录下面

再次运行ant ide-eclipse 命名就会编译成功了

编译成功后，会生成Eclipse的项目文件(.classpath等),如下图：

五、将Tomcat7源码导入MyEclipse

导入MyEclipse后，工程上面会出现红色感叹号.

打开MyEclipse的Problems视图，可以看到如下错误：

解决方案：右键tomcat工程,Build Path--->Configure Build Path

如上图，以Ant举例，图示操作，点击ant ，然后点击Edit.. ，若没有，需要自己新建一个.

以此类推，把余下的Tomacat依赖包配置好。TOMCAT_LIB_BASE 配置的地址是：C:/Users/yulei/tomcat-build-libs

六、运行Tomcat

右键Tomcat工程，Run As --->Java Application, 选择Bootstrap.

点击OK，出现如下选项：

选择start-tomcat，后命令行出现如下信息：

九月 05, 2016 11:21:21 下午 org.apache.catalina.startup.CatalinaProperties loadProperties
WARNING: Failed to load catalina.properties
九月 05, 2016 11:21:21 下午 org.apache.catalina.startup.Catalina load
WARNING: Unable to load server configuration from [D:\CBSS\code\tomcat-7.0.x\output\build\conf\server.xml]
九月 05, 2016 11:21:21 下午 org.apache.catalina.startup.Catalina load
WARNING: Unable to load server configuration from [D:\CBSS\code\tomcat-7.0.x\output\build\conf\server.xml]
九月 05, 2016 11:21:21 下午 org.apache.catalina.startup.Catalina start
SEVERE: Cannot start server. Server instance is not configured.

表示，tomcat服务没有跑起来，别着急，用Ant deploy一下你的tomcat工程.