008-tomcat源码阅读-查看源码、日志配置、启动配置、启动
2023-09-14 09:08:45 时间
一、概述
tomcat源码阅读
二、使用idea打开源码
2.1、环境
macos、idea、apache-tomcat-8.5.61
2.2、步骤
1、下载解压
地址:https://tomcat.apache.org/download-80.cgi
找到:Source Code Distributions 下的zip包下载即可,然后解压
2、基础配置
手动添加文件夹catalina-home,将conf、webapps两个文件夹复制进来,并且新建lib、logs、temp、work四个空文件夹。
添加pom.xml文件
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</artifactId> <name>Tomcat8</name> <version>8</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>4.0.2</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> <dependency> <groupId>javax.xml.soap</groupId> <artifactId>javax.xml.soap-api</artifactId> <version>1.4.0</version> </dependency> </dependencies> </project>
3、用idea打开项目
在pom.xml鼠标右击选择as maven project,module构建。
程序入口如下:
通过org.apache.catalina.startup.Bootstrap中的main方法启动。
我们在IDEA中配置Application方式启动,附带启动参数。
注意此时:TestCookieFilter中的CookieFilter 找不到,两种方案:1、注解注释;2补全这个代码,同级下增加如下
![](https://images.cnblogs.com/OutliningIndicators/ContractedBlock.gif)
/* * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright ownership. * The ASF licenses this file to You under the Apache License, Version 2.0 * (the "License"); you may not use this file except in compliance with * the License. You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package util; import java.util.Locale; import java.util.StringTokenizer; /** * Processes a cookie header and attempts to obfuscate any cookie values that * represent session IDs from other web applications. Since session cookie names * are configurable, as are session ID lengths, this filter is not expected to * be 100% effective. * * It is required that the examples web application is removed in security * conscious environments as documented in the Security How-To. This filter is * intended to reduce the impact of failing to follow that advice. A failure by * this filter to obfuscate a session ID or similar value is not a security * vulnerability. In such instances the vulnerability is the failure to remove * the examples web application. */ public class CookieFilter { private static final String OBFUSCATED = "[obfuscated]"; private CookieFilter() { // Hide default constructor } public static String filter(String cookieHeader, String sessionId) { StringBuilder sb = new StringBuilder(cookieHeader.length()); // Cookie name value pairs are ';' separated. // Session IDs don't use ; in the value so don't worry about quoted // values that contain ; StringTokenizer st = new StringTokenizer(cookieHeader, ";"); boolean first = true; while (st.hasMoreTokens()) { if (first) { first = false; } else { sb.append(';'); } sb.append(filterNameValuePair(st.nextToken(), sessionId)); } return sb.toString(); } private static String filterNameValuePair(String input, String sessionId) { int i = input.indexOf('='); if (i == -1) { return input; } String name = input.substring(0, i); String value = input.substring(i + 1, input.length()); return name + "=" + filter(name, value, sessionId); } public static String filter(String cookieName, String cookieValue, String sessionId) { if (cookieName.toLowerCase(Locale.ENGLISH).contains("jsessionid") && (sessionId == null || !cookieValue.contains(sessionId))) { cookieValue = OBFUSCATED; } return cookieValue; } }
4、启动配置、配置jsp解析器、日志信息
启动参数配置
配置jsp解析器
在类:org.apache.catalina.startup.ContextConfig#configureStart,的webConfig();后配置jsp解析器
context.addServletContainerInitializer(new JasperInitializer(), null);
日志版本乱码问题:查看:VersionLoggerListener 发现StringManager sm变量发现,local为zh_cn,一般配置均未生效,采用绕过,配置en如下:
-Dfile.encoding=UTF8 -Duser.language=en -Duser.region=US -Dcatalina.home=/Users/lihongxu6/ideaProjects/apache-tomcat-8.5.61-src/catalina-home -Dcatalina.base=/Users/lihongxu6/ideaProjects/apache-tomcat-8.5.61-src/catalina-home -Djava.endorsed.dirs=/Users/lihongxu6/ideaProjects/apache-tomcat-8.5.61-src/catalina-home/endorsed -Djava.io.tmpdir=/Users/lihongxu6/ideaProjects/apache-tomcat-8.5.61-src/catalina-home/temp -Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager -Djava.util.logging.config.file=/Users/lihongxu6/IdeaProjects/apache-tomcat-8.5.61-src/catalina-home/conf/logging.properties
启动项目,输入localhost:8080即可。
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