IDEA運行Tomcat源碼

1.Tomcat官網：https://tomcat.apache.org/

2.下載tomcat8源碼和二進制文件，如圖：

3.解壓源碼包（apache-tomcat-8.5.43-src.zip），並在根目錄下創建pom.xml和catalina-home文件夾，如圖：

3-1).pom.xml內容如下：

<?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>Tomcat8.0</artifactId>
    <name>Tomcat8.0</name>
    <version>8.0</version>

    <properties>
        <java.version>1.8</java.version>
    </properties>

    <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.rpc</groupId>
            <artifactId>javax.xml.rpc-api</artifactId>
            <version>1.1</version>
        </dependency>
        <dependency>
            <groupId>org.eclipse.jdt.core.compiler</groupId>
            <artifactId>ecj</artifactId>
            <version>4.5.1</version>
        </dependency>
    </dependencies>

    <build>
        <finalName>Tomcat8.0</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>3.5</version>
                <configuration>
                    <encoding>UTF-8</encoding>
                    <source>${java.version}</source>
                    <target>${java.version}</target>
                </configuration>
            </plugin>
        </plugins>
    </build>
</project>

3-2).解壓二進制包（apache-tomcat-8.5.43-windows-x64.zip），並將部分文件夾放入catalina-home中，如圖：

4.IDEA導入tomcat源碼，一路Next。Import Project—>pom.xml，如圖：

5.配置啓動，如圖：

5-1)Main class是Bootstrap.java，找到main方法，打印啓動日誌。如圖：

5-2)VM options參數（我的路徑：D:\workspace\myself\idea\apache-tomcat-8.5.43-src\catalina-home）配置如下：

-Dcatalina.home=D:\workspace\myself\idea\apache-tomcat-8.5.43-src\catalina-home
-Dcatalina.base=D:\workspace\myself\idea\apache-tomcat-8.5.43-src\catalina-home
-Djava.endorsed.dirs=D:\workspace\myself\idea\apache-tomcat-8.5.43-src\catalina-home\endorsed
-Djava.io.tmpdir=D:\workspace\myself\idea\apache-tomcat-8.5.43-src\catalina-home\temp
-Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager
-Djava.util.logging.config.file=D:\workspace\myself\idea\apache-tomcat-8.5.43-src\catalina-home\conf\logging.properties
-Djava.protocol.handler.pkgs=org.apache.catalina.webresources
-Djdk.tls.ephemeralDHKeySize=2048

6.啓動項目，訪問localhost:8080。如圖：