Tomcat8.5源码构建

ゝ一纸荒年。 2023-02-23 05:02 3阅读 0赞

## Tomcat8.5源码构建 ##

### 1.1 源码下载 ###

*  地址： https://tomcat.apache.org/download-80.cgi  
    ![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3NpbmF0XzMyMzY2MzI5_size_16_color_FFFFFF_t_70]  
    ![在这里插入图片描述][2020070513263687.png]

### 1.2 构建项目 ###

**1.2.1 构建一个空的Maven项目**  
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**1.2.2 将tomcat源码包解压到项目并配置**  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3NpbmF0XzMyMzY2MzI5_size_16_color_FFFFFF_t_70 3]  
**1.2.2.1 创建pom.xml**  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3NpbmF0XzMyMzY2MzI5_size_16_color_FFFFFF_t_70 4]

<?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>11</source>
                        <target>11</target>
                    </configuration>
                </plugin>
            </plugins>
        </build>
        
        <dependencies>
            <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>
            <dependency>
                <groupId>javax.xml.soap</groupId>
                <artifactId>javax.xml.soap-api</artifactId>
                <version>1.4.0</version>
            </dependency>
        </dependencies>
    </project>

**1.2.2.2 调整文件夹**

*  创建source文件夹
 *  将conf和webapps文件夹放入刚创建的source文件夹中  
    ![在这里插入图片描述][20200705132743963.png]

**1.2.3 导入Tomcat源码**

***注意：*** 导入项目后需要配置好JDK的版本信息，我这里使用的是JDK11。如果使用其他JDK版本需要在pom.xml中同步修改配置。  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3NpbmF0XzMyMzY2MzI5_size_16_color_FFFFFF_t_70 5]  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3NpbmF0XzMyMzY2MzI5_size_16_color_FFFFFF_t_70 6]  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3NpbmF0XzMyMzY2MzI5_size_16_color_FFFFFF_t_70 7]

**1.2.4 编译源码解决错误**

**错误：** 编译后会出现以下的错误信息

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3NpbmF0XzMyMzY2MzI5_size_16_color_FFFFFF_t_70 8]  
**解决：**  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3NpbmF0XzMyMzY2MzI5_size_16_color_FFFFFF_t_70 9]

**1.2.5 启动**

**Tomcat的启动类是Bootstrap类的Main方法**

直接启动会出现以下错误，因为我们将conf和webapps目录移动到source目录下，需要配置。

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3NpbmF0XzMyMzY2MzI5_size_16_color_FFFFFF_t_70 10]  
**1.2.6 配置conf和webapps资源**

-Dcatalina.home=E:\idea-workspace\tomcat-source\apache-tomcat-8.5.50-src/source
    -Dcatalina.base=E:\idea-workspace\tomcat-source\apache-tomcat-8.5.50-src/source
    -Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager
    -Djava.util.logging.config.file=E:\idea-workspace\tomcat-source\apache-tomcat-8.5.50-src/source/conf/logging.properties

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3NpbmF0XzMyMzY2MzI5_size_16_color_FFFFFF_t_70 11]

**1.2.7 再次启动**

**错误：** 启动没有问题，浏览器访问localhost:8080出错，由于Jsp引擎Jasper没有被初始化  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3NpbmF0XzMyMzY2MzI5_size_16_color_FFFFFF_t_70 12]  
**解决问题：** 我们需要在tomcat的源码ContextConfig类中的configureStart方法中增加一行代码将 Jsp 引擎初始化

// 初始化jsp解析引擎：jasper
    context.addServletContainerInitializer(new JasperInitializer(), null);

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3NpbmF0XzMyMzY2MzI5_size_16_color_FFFFFF_t_70 13]

**1.2.8 最终启动一次**

启动成功后浏览器访问：localhost:8080，可以看到tomcat的管理界面  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3NpbmF0XzMyMzY2MzI5_size_16_color_FFFFFF_t_70 14]

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