Tomcat8源码导入idea运行

tech2022-08-08 128

1）源码下载地址

https://tomcat.apache.org/download-80.cgi#8.5.35

Source Code Distributions

tar.gz (pgp, sha512)zip (pgp, sha512)

2）下载zip包

https://mirror.bit.edu.cn/apache/tomcat/tomcat-8/v8.5.57/src/apache-tomcat-8.5.57-src.zip

3）解压到本地

E:\apache-tomcat-8.5.57-src\apache-tomcat-8.5.57-src

4) apache-tomcat-8.5.35-src根目录下创建新建catalina-home目录

5) apache-tomcat-8.5.35-src根目录下创建pom.xml

<?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>Tomcat8.5</artifactId> <name>Tomcat8.5</name> <version>8.5</version> <build> <finalName>Tomcat8.5</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>

7) 将apache-tomcat-8.0.53-src目录中的conf和webapps文件夹复制到catalina-home目录中

8) idea导入tomcat项目，就跟导入普通maven项目一样导入即可

导入成功后加载pom.xml依赖

9) 配置idea运行参数

main class:org.apache.catalina.startup.Bootstrap

vm options:

-Dcatalina.home=catalina-home -Dcatalina.base=catalina-home -Djava.endorsed.dirs=catalina-home/endorsed -Djava.io.tmpdir=catalina-home/temp -Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager -Djava.util.logging.config.file=catalina-home/conf/logging.properties -Dfile.encoding=UTF-8 -Duser.language=en -Duser.region=US

配置编码和语言是解决乱码问题

02-Sep-2020 22:02:51.659 严重 [localhost-startStop-1] org.apache.catalina.core.StandardContext.startInternal ç±äºä¹åçéè¯¯ï¼Context[/examples]å¯å¨å¤±è´¥ 02-Sep-2020 22:02:51.668 信息 [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Webåºç¨ç¨åºç®å½[E:\apache-tomcat-8.5.57-src\apache-tomcat-8.5.57-src\catalina-home\webapps\examples]çé¨ç½²å·²å¨[209]æ¯«ç§åå®æ 02-Sep-2020 22:02:51.668 信息 [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory æweb åºç¨ç¨åºé¨ç½²å°ç®å½ [E:\apache-tomcat-8.5.57-src\apache-tomcat-8.5.57-src\catalina-home\webapps\host-manager] 02-Sep-2020 22:02:51.774 信息 [localhost-startStop-1] org.apache.jasper.servlet.TldScanner.scanJars è³å°æä¸ä¸ªJARè¢«æ«æç¨äºTLDä½å°æªåå«TLDã ä¸ºæ¤è®°å½å¨å¯ç¨è°è¯æ¥å¿è®°å½ï¼ä»¥è·åå·²æ«æä½æªå¨å¶ä¸æ¾å°TLDçå®æ´JARåè¡¨ã å¨æ«ææé´è·³è¿ä¸éè¦çJARå¯ä»¥ç¼©çå¯å¨æ¶é´åJSPç¼è¯æ¶é´ã 02-Sep-2020 22:02:51.783 信息 [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Webåºç¨ç¨åºç®å½[E:\apache-tomcat-8.5.57-src\apache-tomcat-8.5.57-src\catalina-home\webapps\host-manager]çé¨ç½²å·²å¨[115]æ¯«ç§åå®æ 02-Sep-2020 22:02:51.783 信息 [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory æweb åºç¨ç¨åºé¨ç½²å°ç®å½ [E:\apache-tomcat-8.5.57-src\apache-tomcat-8.5.57-src\catalina-home\webapps\manager] 02-Sep-2020 22:02:51.892 信息 [localhost-startStop-1] org.apache.jasper.servlet.TldScanner.scanJars è³å°æä¸ä¸ªJARè¢«æ«æç¨äºTLDä½å°æªåå«TLDã ä¸ºæ¤è®°å½å¨å¯ç¨è°è¯æ¥å¿è®°å½ï¼ä»¥è·åå·²æ«æä½æªå¨å¶ä¸æ¾å°TLDçå®æ´JARåè¡¨ã å¨æ«ææé´è·³è¿ä¸éè¦çJARå¯ä»¥ç¼©çå¯å¨æ¶é´åJSPç¼è¯æ¶é´ã 02-Sep-2020 22:02:51.894 信息 [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Webåºç¨ç¨åºç®å½[E:\apache-tomcat-8.5.57-src\apache-tomcat-8.5.57-src\catalina-home\webapps\manager]çé¨ç½²å·²å¨[111]æ¯«ç§åå®æ 02-Sep-2020 22:02:51.894 信息 [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory æweb åºç¨ç¨åºé¨ç½²å°ç®å½ [E:\apache-tomcat-8.5.57-src\apache-tomcat-8.5.57-src\catalina-home\webapps\ROOT] 02-Sep-2020 22:02:51.975 信息 [localhost-startStop-1] org.apache.jasper.servlet.TldScanner.scanJars è³å°æä¸ä¸ªJARè¢«æ«æç¨äºTLDä½å°æªåå«TLDã ä¸ºæ¤è®°å½å¨å¯ç¨è°è¯æ¥å¿è®°å½ï¼ä»¥è·åå·²æ«æä½æªå¨å¶ä¸æ¾å°TLDçå®æ´JARåè¡¨ã å¨æ«ææé´è·³è¿ä¸éè¦çJARå¯ä»¥ç¼©çå¯å¨æ¶é´åJSPç¼è¯æ¶é´ã 02-Sep-2020 22:02:51.977 信息 [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Webåºç¨ç¨åºç®å½[E:\apache-tomcat-8.5.57-src\apache-tomcat-8.5.57-src\catalina-home\webapps\ROOT]çé¨ç½²å·²å¨[83]æ¯«ç§åå®æ 02-Sep-2020 22:02:51.981 信息 [main] org.apache.coyote.AbstractProtocol.start å¼å§åè®®å¤çå¥æ["http-nio-8080"]

10) 编译build

util.TestCookieFilter 测试出现编译错误，将测试用例代码注释即可

11) 运行项目，访问 http://localhost:8080

页面出现错误

org.apache.jasper.JasperException: Unable to compile class for JSP

错误原因：

org.apache.catalina.startup.Bootstrap的时候没有加载org.apache.jasper.servlet.JasperInitializer，从而无法编译JSP

解决方法：

修改类：org.apache.catalina.startup.ContextConfig#configureStart 方法

增加代码：context.addServletContainerInitializer(new JasperInitializer(), null);

protected synchronized void configureStart() { // Called from StandardContext.start() if (log.isDebugEnabled()) { log.debug(sm.getString("contextConfig.start")); } if (log.isDebugEnabled()) { log.debug(sm.getString("contextConfig.xmlSettings", context.getName(), Boolean.valueOf(context.getXmlValidation()), Boolean.valueOf(context.getXmlNamespaceAware()))); } webConfig(); /** * 支持jsp */ context.addServletContainerInitializer(new JasperInitializer(), null); if (!context.getIgnoreAnnotations()) { applicationAnnotationsConfig(); }

12）再次运行项目

修改代码：apache-tomcat-8.5.57-src\catalina-home\webapps\ROOT\index.jsp

<div id="navigation" class="curved container"> <a href="${tomcatUrl}">Home(首页)</a> <a href="${tomcatDocUrl}">Documentation</a> <a href="${tomcatDocUrl}config/">Configuration</a> <a href="${tomcatExamplesUrl}">Examples</a> <a href="https://wiki.apache.org/tomcat/FrontPage">Wiki</a> <a href="${tomcatUrl}lists.html">Mailing Lists</a> <a href="${tomcatUrl}findhelp.html">Find Help</a> </div>

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