IDEA部署tomcat8.5.35源码

小鱼儿 2022-03-30 13:07 202阅读 0赞

1、下载tomcat源码，并将压缩文件解压到指定的工作目录

2、在tomcat目录下，创建catalina-home目录和pom.xml文件

3、修改pom.xml文件内容

<?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>

并将目录中的conf和webapps文件夹复制到catalina-home目录中

4、将tomcat导入IDEA中。配置运行配置

添加VM options，即可运行

-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

![738818-20181203224338153-691867278.png][]

报错：运行之后如果Test测试代码报错，可以把该相关类注释掉，继续运行项目，访问http://localhost:8080，得到结果：

![738818-20181203224535587-241807065.png][]

原因是我们直接启动org.apache.catalina.startup.Bootstrap的时候没有加载org.apache.jasper.servlet.JasperInitializer，从而无法编译JSP。解决办法是在tomcat的源码org.apache.catalina.startup.ContextConfig中的configureStart函数中手动将JSP解析器初始化：

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();
             //添加该行代码即可
            context.addServletContainerInitializer(new JasperInitializer(), null);
            
            if (!context.getIgnoreAnnotations()) {
                applicationAnnotationsConfig();
            }
            if (ok) {
                validateSecurityRoles();
            }
    
            // Configure an authenticator if we need one
            if (ok) {
                authenticatorConfig();
            }
    
            // Dump the contents of this pipeline if requested
            if (log.isDebugEnabled()) {
                log.debug("Pipeline Configuration:");
                Pipeline pipeline = context.getPipeline();
                Valve valves[] = null;
                if (pipeline != null) {
                    valves = pipeline.getValves();
                }
                if (valves != null) {
                    for (int i = 0; i < valves.length; i++) {
                        log.debug("  " + valves[i].getClass().getName());
                    }
                }
                log.debug("======================");
            }
    
            // Make our application available if no problems were encountered
            if (ok) {
                context.setConfigured(true);
            } else {
                log.error(sm.getString("contextConfig.unavailable"));
                context.setConfigured(false);
            }
    
        }

[738818-20181203224338153-691867278.png]: /images/20220330/3aebfee563414cf28d9108c95c9b9fce.png
[738818-20181203224535587-241807065.png]: /images/20220330/da6a7712d5204fa5ae33ac21f0d84cb5.png