tomcat源码导入

一时失言乱红尘 2022-12-19 06:07 99阅读 0赞

下载tomcat8.5源码并解压  
首先创建pom.xml文件，并导入坐标

<?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>apache-tomcat-8.5.50-src</artifactId>
        <name>Tomcat8.5</name>
        <version>8.5</version>
        <build>
            
            <finalName>Tomcat8.5</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>3.1</version>
                    <configuration>
                        <encoding>UTF-8</encoding>
                        <source>8</source>
                        <target>8</target>
                    </configuration>
                </plugin>
            </plugins>
        </build>
    
        
        <dependencies>
            <dependency>
                <groupId>junit</groupId>
                <artifactId>junit</artifactId>
                <version>4.11</version>
                <scope>test</scope>
            </dependency>
    
            <dependency>
                <groupId>org.easymock</groupId>
                <artifactId>easymock</artifactId>
                <version>3.6</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>

2、在根目录创建source文件夹，将conf和webapps拖入该文件夹，获取到source目录绝对路径，如`d:/test/source`  
3、导入idea，修改vm参数

-Dcatalina.home=d:/test/source/source
    -Dcatalina.base=d:/test/source/source
    -Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager
    -Djava.util.logging.config.file=d:/test/source/conf/logging.properties

4、启动报500，因为没有初始化Jasper，找到org.apache.catalina.startup.ContextConfig\#configureStart，  
在webConfig();下面加入一行代码：

context.addServletContainerInitializer(new JasperInitializer(), null);

5、再次启动即可访问localhost:8080查看tomcat首页

不是说tomcat8已经将编码改为UTF8了吗？  
找到类org.apache.jasper.compiler.Localizer\#getMessage(java.lang.String)，在return前执行如下代码：

try {
        errMsg = new String(errMsg.getBytes("ISO-8859-1"),"UTF-8");
    } catch (UnsupportedEncodingException e) {
        e.printStackTrace();
    }

启动完成。