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配置文件生成器-秒杀SSM的xml整合

思路： 通过简单的配置，直接生成对应配置文件。

maven坐标

  <dependencies><!--    配置文件生成    --><dependency><groupId>org.freemarker</groupId><artifactId>freemarker</artifactId><version>2.3.31</version></dependency><!--数据库驱动--><dependency><groupId>mysql</groupId><artifactId>mysql-connector-java</artifactId><version>8.0.27</version></dependency><!--数据库连接池--><dependency><groupId>com.alibaba</groupId><artifactId>druid</artifactId><version>1.2.1</version></dependency><!--    jspapi--><dependency><groupId>javax.servlet.jsp</groupId><artifactId>jsp-api</artifactId><version>2.2</version></dependency><!--      jstl标签库  --><dependency><groupId>javax.servlet</groupId><artifactId>jstl</artifactId><version>1.2</version></dependency><!--Mybatis--><dependency><groupId>org.mybatis</groupId><artifactId>mybatis</artifactId><version>3.5.2</version></dependency><!--mybatis、spring整合--><dependency><groupId>org.mybatis</groupId><artifactId>mybatis-spring</artifactId><version>2.0.6</version></dependency><!--Springmvc--><dependency><groupId>org.springframework</groupId><artifactId>spring-webmvc</artifactId><version>5.2.12.RELEASE</version></dependency><!--    mvc、实体类序列化成json。默认jackson    --><dependency><groupId>com.fasterxml.jackson.core</groupId><artifactId>jackson-databind</artifactId><version>2.12.5</version></dependency><!--    lombok插件    --><dependency><groupId>org.projectlombok</groupId><artifactId>lombok</artifactId><version>1.18.30</version><scope>compile</scope></dependency><dependency><groupId>org.springframework</groupId><artifactId>spring-jdbc</artifactId><version>5.1.9.RELEASE</version></dependency></dependencies><build><!--  必选：生成ssm配置文件时，务必把以下内容注释  。项目运行过程mybatis如果报错，再打开、否则保留注释即可。 --><!--        <resources>--><!--            &lt;!&ndash;  静态资源过滤问题解决&ndash;&gt;--><!--            <resource>--><!--                <directory>src/main/java</directory>--><!--                <includes>--><!--                    <include>**/*.properties</include>--><!--                    <include>**/*.xml</include>--><!--                </includes>--><!--                <filtering>false</filtering>--><!--            </resource>--><!--            <resource>--><!--                <directory>src/main/resources</directory>--><!--                <includes>--><!--                    <include>**/*.properties</include>--><!--                    <include>**/*.xml</include>--><!--                </includes>--><!--                <filtering>false</filtering>--><!--            </resource>--><!--        </resources>--></build>

一、生成器ftl模板文件

模板文件，全部放在resource目录下的template文件夹中 。

• mybatis-config-template.ftl 模板文件。

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE configuration PUBLIC "-//mybatis.org//DTD Config 3.0//EN""http://mybatis.org/dtd/mybatis-3-config.dtd">
<configuration><settings><!-- 打印sql日志 --><setting name="logImpl" value="STDOUT_LOGGING" /></settings><!-- 设置别名 --><typeAliases><package name="${packageName}"/></typeAliases><!-- 其他的MyBatis配置 --></configuration>

• springmvc-config-template.xml.ftl 模板文件

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"xmlns:mvc="http://www.springframework.org/schema/mvc"xmlns:context="http://www.springframework.org/schema/context"xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"xsi:schemaLocation="http://www.springframework.org/schema/beanshttp://www.springframework.org/schema/beans/spring-beans.xsdhttp://www.springframework.org/schema/mvchttp://www.springframework.org/schema/mvc/spring-mvc.xsdhttp://www.springframework.org/schema/contexthttp://www.springframework.org/schema/context/spring-context.xsd"><!-- 配置Controller包扫描 --><context:component-scan base-package="${basePackage}"/><!-- 配置视图解析器 --><bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"><property name="prefix" value="${viewResolverPrefix}"/><property name="suffix" value="${viewResolverSuffix}"/></bean><!--配置静态资源的访问映射，此配置中的文件，将不被前端控制器拦截 --><mvc:resources location="/static/" mapping="/static/**" /><!-- 开启SpringMVC的注解 --><mvc:annotation-driven/></beans>

• spring-mybatis-config-template.ftl 模板文件

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"xmlns:context="http://www.springframework.org/schema/context"xsi:schemaLocation="http://www.springframework.org/schema/beanshttp://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context https://www.springframework.org/schema/context/spring-context.xsd"><!-- 扫描dao和service包 --><context:component-scan base-package="${basePackage}"/><!-- 数据源配置，根据实际数据库连接信息修改 --><bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource"><property name="driverClassName" value="${dbDriverClassName}"/><property name="url" value="${dbUrl}"/><property name="username" value="${dbUsername}"/><property name="password" value="${dbPassword}"/></bean><!-- MyBatis的SqlSessionFactory配置 --><bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean"><property name="dataSource" ref="dataSource"/><property name="mapperLocations" value="${mapperLocations}"/><!--注入mybatis配置文件--><property name="configLocation" value="${mybatisConfigLocation}"/></bean><!-- MyBatis的MapperScannerConfigurer配置 --><bean class="org.mybatis.spring.mapper.MapperScannerConfigurer"><property name="basePackage" value="${daoBasePackage}"/><property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/></bean><!-- 事务管理器配置 --><bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager"><property name="dataSource" ref="dataSource"/></bean></beans>

• web-config-template.ftl 模板文件

<?xml version="1.0" encoding="UTF-8"?>
<web-app version="3.1" xmlns="http://xmlns.jcp.org/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"><!-- Spring的核心监听器 --><listener><listener-class>org.springframework.web.context.ContextLoaderListener</listener-class></listener><!-- Spring的核心配置文件 --><context-param><param-name>contextConfigLocation</param-name><param-value>${springMyBatisConfigPath}</param-value></context-param><!-- Spring MVC的DispatcherServlet --><servlet><servlet-name>DispatcherServlet</servlet-name><servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class><init-param><param-name>contextConfigLocation</param-name><param-value>${springMvcConfigPath}</param-value></init-param><load-on-startup>1</load-on-startup></servlet><servlet-mapping><servlet-name>DispatcherServlet</servlet-name><url-pattern>/</url-pattern></servlet-mapping><!-- 其他的Web配置 --><!-- 添加UTF-8编码的全局过滤器 --><filter><filter-name>encodingFilter</filter-name><filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class><init-param><param-name>encoding</param-name><param-value>UTF-8</param-value></init-param><init-param><param-name>forceEncoding</param-name><param-value>true</param-value></init-param></filter><filter-mapping><filter-name>encodingFilter</filter-name><url-pattern>/*</url-pattern></filter-mapping></web-app>

二、生成器代码

import freemarker.template.Configuration;
import freemarker.template.Template;
import freemarker.template.TemplateException;import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.util.HashMap;
import java.util.Map;
/*** 最屌Java实习生  -chen fei* 2023/10/6*/
public class SSMWebXmlGenerator {// SSM 全局参数private static final String BASE_PACKAGE = "com.itheima";private static final String OUTPUT_DIR = "src/main/resources/ssm";  // 配置文件生成目录// MyBatis 配置参数private static final String MYBATIS_CONFIG_LOCATIONS = "classpath:ssm/mybatis-config.xml";private static final String MYBATIS_OUTPUT_PATH = OUTPUT_DIR + "/mybatis-config.xml";  // 设置mybaits配置文件名字private static final String POJO_PACKAGE = BASE_PACKAGE + ".pojo"; // typeAliases  设置别名参数// Spring MVC 配置参数private static final String SPRING_MVC_OUTPUT_PATH = OUTPUT_DIR + "/springmvc-config.xml";  //springmvc配置文件名字private static final String CONTROLLER_PACKAGE = BASE_PACKAGE + ".controller";   // 配置controller包位置，以便可以扫描到里面的beanprivate static final String VIEW_RESOLVER_PREFIX = "/WEB-INF/jsp/";  //视图解析器前缀private static final String VIEW_RESOLVER_SUFFIX = ".jsp";//视图解析器后缀// Spring 配置参数private static final String SPRING_OUTPUT_PATH = OUTPUT_DIR + "/spring-mybatis-config.xml";  //spring配置文件名字private static final String DAO_PACKAGE = BASE_PACKAGE + ".dao";  // dao层的全包名private static final String SERVICE_PACKAGE = BASE_PACKAGE + ".service";  //service层的全包名private static final String DB_DRIVER_CLASS_NAME = "com.mysql.cj.jdbc.Driver"; //mysql驱动，默认8.*private static final String DB_URL = "jdbc:mysql://localhost:3306/cnmsb";  //urlprivate static final String DB_USERNAME = "root"; //账号private static final String DB_PASSWORD = "root"; // 密码private static final String MYBATIS_MAPPER_LOCATIONS = "classpath*:mapper/*.xml"; //配置mybatis中xml的位置// web.xml 配置参数private static final String WEB_XML_OUTPUT_PATH = "src/main/webapp/WEB-INF/web.xml";   //生成路径private static final String SPRING_MYBATIS_CONFIG_PATH = "classpath:ssm/spring-mybatis-config.xml";  //spring配置文件名private static final String SPRING_MVC_CONFIG_PATH = "classpath:ssm/springmvc-config.xml"; //springmvc文件名public static void main(String[] args) throws IOException, TemplateException {try {
//            先生成所需目录createDirectoriesIfNotExists();
//            生成mybaits配置文件generateMyBatisConfig();
//            mvc配置文件generateSpringMVCConfig();
//            spring配置文件generateSpringConfig();
//            web.xml配置文件。generateWebXml();} catch (IOException | TemplateException e) {e.printStackTrace();System.err.println("生成配置文件时出错：" + e.getMessage());System.out.println("请注意，生成配置文件时、请删除或注释pom文件中，build标签。会影响生成！！！");}}private static void createDirectoriesIfNotExists() {// Create base package directoriesString[] subPackages = {"pojo", "dao", "service", "controller", "utils"};for (String subPackage : subPackages) {String packagePath = BASE_PACKAGE.replace('.', '/') + "/" + subPackage;File packageDir = new File("src/main/java/" + packagePath);if (!packageDir.exists()) {if (packageDir.mkdirs()) {System.out.println("Created package directory: " + packagePath);} else {System.err.println("Failed to create package directory: " + packagePath);}}}// Check and create VIEW_RESOLVER_PREFIX directoryFile viewResolverDir = new File("src/main/webapp" + VIEW_RESOLVER_PREFIX);if (!viewResolverDir.exists()) {if (viewResolverDir.mkdirs()) {System.out.println("Created VIEW_RESOLVER_PREFIX directory: " + viewResolverDir.getPath());} else {System.err.println("Failed to create VIEW_RESOLVER_PREFIX directory: " + viewResolverDir.getPath());}}// Check and create 'mapper' directory in resourcesFile resourcesDir = new File("src/main/resources");File mapperDir = new File(resourcesDir, "mapper");if (!mapperDir.exists()) {if (mapperDir.mkdirs()) {System.out.println("Created 'mapper' directory in resources.");} else {System.err.println("Failed to create 'mapper' directory in resources.");}}File resourcesDir2 = new File("src/main/resources");File mapperDir2 = new File(resourcesDir2, "static");if (!mapperDir2.exists()) {if (mapperDir2.mkdirs()) {System.out.println("Created 'static' directory in resources.");} else {System.err.println("Failed to create 'static' directory in resources.");}}}private static void generateMyBatisConfig() throws IOException, TemplateException {// 配置 FreeMarkerConfiguration configuration = new Configuration(Configuration.VERSION_2_3_31);configuration.setClassForTemplateLoading(SSMWebXmlGenerator.class, "/");configuration.setDefaultEncoding("UTF-8");// 加载 MyBatis 配置模板文件Template template = configuration.getTemplate("template/mybatis-config-template.ftl");Map<String, String> dataModel = new HashMap<>();// 设置 MyBatis 包名参数dataModel.put("packageName", POJO_PACKAGE);generateFile(MYBATIS_OUTPUT_PATH, template, dataModel);}private static void generateSpringMVCConfig() throws IOException, TemplateException {// 配置 FreeMarkerConfiguration configuration = new Configuration(Configuration.VERSION_2_3_31);configuration.setClassForTemplateLoading(SSMWebXmlGenerator.class, "/");configuration.setDefaultEncoding("UTF-8");// 加载 Spring MVC 配置模板文件Template template = configuration.getTemplate("template/springmvc-config-template.xml.ftl");Map<String, String> dataModel = new HashMap<>();// 设置 Spring MVC 包名参数和视图解析器参数dataModel.put("basePackage", CONTROLLER_PACKAGE);dataModel.put("viewResolverPrefix", VIEW_RESOLVER_PREFIX);dataModel.put("viewResolverSuffix", VIEW_RESOLVER_SUFFIX);generateFile(SPRING_MVC_OUTPUT_PATH, template, dataModel);}private static void generateSpringConfig() throws IOException, TemplateException {// 配置 FreeMarkerConfiguration configuration = new Configuration(Configuration.VERSION_2_3_31);configuration.setClassForTemplateLoading(SSMWebXmlGenerator.class, "/");configuration.setDefaultEncoding("UTF-8");// 加载 Spring 配置模板文件Template template = configuration.getTemplate("template/spring-mybatis-config-template.ftl");Map<String, String> dataModel = new HashMap<>();// 设置 Spring 包名参数和数据库连接参数dataModel.put("basePackage", DAO_PACKAGE + "," + SERVICE_PACKAGE);dataModel.put("dbDriverClassName", DB_DRIVER_CLASS_NAME);dataModel.put("dbUrl", DB_URL);dataModel.put("dbUsername", DB_USERNAME);dataModel.put("dbPassword", DB_PASSWORD);dataModel.put("mapperLocations", MYBATIS_MAPPER_LOCATIONS);dataModel.put("mybatisConfigLocation", MYBATIS_CONFIG_LOCATIONS);dataModel.put("daoBasePackage", DAO_PACKAGE);generateFile(SPRING_OUTPUT_PATH, template, dataModel);}private static void generateWebXml() throws IOException, TemplateException {// 配置 FreeMarkerConfiguration configuration = new Configuration(Configuration.VERSION_2_3_31);configuration.setClassForTemplateLoading(SSMWebXmlGenerator.class, "/");configuration.setDefaultEncoding("UTF-8");// 加载 web.xml 配置模板文件Template template = configuration.getTemplate("template/web-config-template.ftl");Map<String, String> dataModel = new HashMap<>();// 设置 web.xml 配置参数，引用之前生成的配置文件路径dataModel.put("springMyBatisConfigPath", SPRING_MYBATIS_CONFIG_PATH);dataModel.put("springMvcConfigPath", SPRING_MVC_CONFIG_PATH);generateFile(WEB_XML_OUTPUT_PATH, template, dataModel);}private static Configuration createConfiguration() {// 创建 FreeMarker 配置Configuration configuration = new Configuration(Configuration.VERSION_2_3_31);configuration.setClassForTemplateLoading(SSMWebXmlGenerator.class, "/");configuration.setDefaultEncoding("UTF-8");return configuration;}private static void generateFile(String outputPath, Template template, Map<String, String> dataModel)throws IOException, TemplateException {// 检查父目录是否存在，如果不存在则创建File parentDir = new File(outputPath).getParentFile();if (!parentDir.exists()) {parentDir.mkdirs();}// 写入文件FileWriter writer = new FileWriter(new File(outputPath));template.process(dataModel, writer);writer.close();System.out.println("配置文件生成成功：" + outputPath);}
}