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导入依赖<!-- mp--><dependency> <groupId>com.baomidou</groupId> <artifactId>mybatis-plus</artifactId> <version>3.4.2</version></dependency>service层Type是自定义的实体类public interface TypeServ

1.首先进入官网下载ZIP文件。步骤：1.安装tomcat8.0。解压zip后，配置环境变量；CATALINA_HOMED:\apache-tomcat-8.0.51CATALINA_BASED:\apache-tomcat-8.0.51编辑Path下添加bin路径%JAVA_HOME%\bin%JAVA_HOME%\jre\bin%CATALINA_HOME%\lib%CATALINA_HOME%\bin2.安装tomcat服务DOS 下进入tomcat/bin目

pom.xml5.7<dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>5.1.49</version></dependency>8.0<dependency> <groupId>mysql</groupId