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放个效果图:

首先在MySql控制台输入一下sql语句创建student 数据库和student。
- create databse student;use student;CREATE TABLE `student` ( `stu_id` bigint(20) NOT NULL, `stu_name` varchar(45) DEFAULT NULL, `stu_sex` varchar(6) DEFAULT NULL, `date` varchar(45) DEFAULT NULL, `room` int(2) DEFAULT NULL, `acadimy` varchar(45) DEFAULT NULL,
- PRIMARY KEY (`stu_id`)
- ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci;
-
- 123456789101112

修改项目名称,点击next

这里直接点next

第一次打开会很慢
打开后删除用不到的文件

修改 application.properties 为 application.yml

插入一下代码
要修改的内容: url: jdbc:mysql://localhost:3306/student?useSSL=false&serverTimezone=UTC&&characterEncoding=utf-8中的student改为自己的数据库名称
- spring:
- #配置 数据库
- datasource:
- username: root #用户名
- password: akbar #密码
- #下一行中student 改为 自己建的database
- url: jdbc:mysql://localhost:3306/student?useSSL=false&serverTimezone=UTC&&characterEncoding=utf-8
- driver-class-name: com.mysql.cj.jdbc.Driver# 配置JSP 路径
- mvc:
- view:
- prefix: /
- suffix: .jsp#mybatis-plus 打印日志 不需要手写sql 可查看把我们完成的sql mybatis-plus:
- configuration:
- log-impl: org.apache.ibatis.logging.stdout.StdOutImpl# 设置端口号server:
- port: 800112345678910111213141516171819202122

- <dependencies>
- <dependency>
- <groupId>org.springframework.boot</groupId>
- <artifactId>spring-boot-starter-web</artifactId>
- </dependency><!-- MYsql -->
- <dependency>
- <groupId>mysql</groupId>
- <artifactId>mysql-connector-java</artifactId>
- </dependency><!-- mybatis-plus -->
- <dependency>
- <groupId>com.baomidou</groupId>
- <artifactId>mybatis-plus-boot-starter</artifactId>
- <version>3.0.5</version>
- </dependency>
-
-
- <!-- 模板引擎 -->
- <dependency>
- <groupId>org.apache.velocity</groupId>
- <artifactId>velocity-engine-core</artifactId>
- <version>2.0</version>
- </dependency>
-
- <dependency>
- <groupId>org.freemarker</groupId>
- <artifactId>freemarker</artifactId>
- </dependency>
- <dependency>
- <groupId>org.apache.tomcat.embed</groupId>
- <artifactId>tomcat-embed-jasper</artifactId>
- </dependency>
- <!-- servlet依赖的jar包start -->
- <dependency>
- <groupId>javax.servlet</groupId>
- <artifactId>javax.servlet-api</artifactId>
- </dependency>
- <!-- servlet依赖的jar包start -->
-
- <!-- jsp依赖jar包start -->
- <dependency>
- <groupId>javax.servlet.jsp</groupId>
- <artifactId>javax.servlet.jsp-api</artifactId>
- <version>2.3.1</version>
- </dependency>
- <!-- jsp依赖jar包end -->
-
- <!--jstl标签依赖的jar包start -->
- <dependency>
- <groupId>javax.servlet</groupId>
- <artifactId>jstl</artifactId>
- </dependency>
- <dependency>
- <groupId>org.springframework.boot</groupId>
- <artifactId>spring-boot-starter-test</artifactId>
- <scope>test</scope>
- <exclusions>
- <exclusion>
- <groupId>org.junit.vintage</groupId>
- <artifactId>junit-vintage-engine</artifactId>
- </exclusion>
- </exclusions>
- </dependency>
- </dependencies>1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859606162636465

IDEA 链接本地MySql数据库 (可以确定Mysql能正常访问 ,方便我们调试)
1.点击屏幕右侧Database
2.点击如下如的加号
3.DataSource
4.选择Mysql


**如上图所示表示成功连接,如果报错,检查用户名,密码,数据库名称 **
- set global time_zone='+8:00';
- 1
连接成功可以看到刚才见的数据库



需要修改的地方:
1.这里修改成你自己的
- pg.setParent("com.example.xxxx");
- 1
2.改称自己的昵称
- gc.setAuthor("艾科");
- 1
3.把下边的student 改为自己建的数据库名称
- dsc.setUrl("jdbc:mysql://localhost:3306/studentuseSSL=false&useUnicode=true&characterEncoding=utf-8&serverTimezone=GMT%2B8");`1
4.// 版本8.0以下去掉中间的cj
dsc.setDriverName("com.mysql.cj.jdbc.Driver"); //8.0dsc.setDriverName("com.mysql.jdbc.Driver"); //8.0以下12
- dsc.setUsername("root"); dsc.setPassword("root");
- 12
6.最后一个也是最重要的:这里是自己的数据不哭表
strategy.setInclude("student");1
- public class GenerateCode {
-
- public static void main(String[] args) {
-
- AutoGenerator ag=new AutoGenerator();// 全局配置
- GlobalConfig gc=new GlobalConfig();
- String projectPath=System.getProperty("user.dir"); //获取项目根目录
- gc.setOutputDir(projectPath+"/src/main/java"); //设置输出目录
- gc.setAuthor("艾科"); //代码注解
- gc.setOpen(false);
- gc.setFileOverride(false); //是否覆盖(选否)不然会覆盖掉写过的代码
- gc.setServiceName("%sService");
- gc.setIdType(IdType.ID_WORKER); // 可以根据需求改成IdType.AUTO 或者其他
- gc.setDateType(DateType.ONLY_DATE); //Date 类型 只使用 java.util.date 代替
- ag.setGlobalConfig(gc);// 设置数据源
- DataSourceConfig dsc=new DataSourceConfig(); //不要忘了修改数据库名称
- dsc.setUrl("jdbc:mysql://localhost:3306/student?useSSL=false&useUnicode=true&characterEncoding=utf-8&serverTimezone=GMT%2B8");
- dsc.setDriverName("com.mysql.cj.jdbc.Driver");//8.0用com.mysql.cj.jdbc.Driver 5.7用com.mysql.jdbc.Driver
- dsc.setUsername("root");
- dsc.setPassword("root");
- dsc.setDbType(DbType.MYSQL); //数据库类型
- ag.setDataSource(dsc);// 包的配置
-
- PackageConfig pg=new PackageConfig();// pg.setModuleName("")
- pg.setParent("com.example.xxxx"); //把xxx 改成你自己的
- pg.setEntity("entity"); //实体类创建目录
- pg.setMapper("mapper");//mapper
- pg.setController("controller");//controoler
- ag.setPackageInfo(pg);
-
- StrategyConfig strategy = new StrategyConfig();
- strategy.setNaming(NamingStrategy.underline_to_camel); //代码风格驼峰结构
- strategy.setColumnNaming(NamingStrategy.underline_to_camel);
- strategy.setEntityLombokModel(false);
- strategy.setRestControllerStyle(true);
- strategy.setInclude("student"); // table 名称 ,根据table 名称生成 实体类,controller,service, mmapper
- // strategy.setInclude("student,user,class"); // 多个表用都逗号分开
- strategy.setControllerMappingHyphenStyle(true);
- ag.setStrategy(strategy);
- ag.execute();
- }123456789101112131415161718192021222324252627282930313233343536373839404142434445464748




**如果怕敲错可以复制StudentMpaper 中的packege **

- @MapperScan("com.example.student.mapper")@SpringBootApplicationpublic class StudentApplication { public static void main(String[] args) { SpringApplication.run(StudentApplication.class, args);
-
- }
- }123456789
- @Autowired
- StudentMapper studentMapper;
-
- // Mybatis plus 查询 student 表中的数据 返回List 类型
- // 相当于: SELECT stu_id,stu_name,stu_sex,date,room,acadimy FROM student List<Student> list = studentMapper.selectList(null);
- list.forEach(System.out::println);
-
- // 通过id 查询 相当于:SELECT stu_id,stu_name,stu_sex,date,room,acadimy FROM student WHERE stu_id=1
- Student student1 = studentMapper.selectById(1);
- // 条件查询 查询单个 相当于:SELECT stu_id,stu_name,stu_sex,date,room,acadimy FROM student WHERE stu_name = ? AND stu_sex = ?
- QueryWrapper<Student> wrapper = new QueryWrapper<>();
- wrapper.eq("stu_name", "小明");
- wrapper.eq("stu_sex", "男");
- Student student2 = studentMapper.selectOne(wrapper);
-
- // 条件查询 查询列表 相当于:SELECT stu_id,stu_name,stu_sex,date,room,acadimy FROM student WHERE stu_id > 1
-
- QueryWrapper<Student> wrapper1 = new QueryWrapper<>();
-
- wrapper1.gt("stu_id", 1);
-
- Student student3 = studentMapper.selectOne(wrapper1);
-
- SimpleDateFormat simpleDateFormat=new SimpleDateFormat("yyyy-MM-dd");
- String date=simpleDateFormat.format(System.currentTimeMillis());
- // insert 相当于 :
- // INSERT INTO student ( stu_id, stu_name, stu_sex, date, room, acadimy ) VALUES ( ?, ?, ?, ?, ?, ? )
- //==> Parameters: 1280830334286217217(Long), aike(String), 男(String), 2020-07-08(String), 226(Integer), 计算机(String)
- Student student=new Student();
- student.setStuName("aike");
- student.setStuSex("男");
- student.setDate(date);
- student.setRoom(226);
- student.setAcadimy("计算机");
- studentMapper.insert(student);
-
- 1234567891011121314151617181920212223242526272829303132333435363738

在mian 目录下创建 webapp 文件夹


在webapp 目录下创建 student.jsp文件


student.jsp文件内容如下 把瞎下面的文件放到 student.jsp
- <%@ page language="java" contentType="text/html; charset=utf-8"
- pageEncoding="utf-8" %><%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %><!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html><head>
- <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
- <title>学生信息</title>
- <link href="https://cdn.jsdelivr.net/npm/bootstrap@3.3.7/dist/css/bootstrap.min.css" rel="stylesheet">
- <script type="text/javascript">
- inserrtStudent= function() { console.log("新增学生")
- alert("新增学生")
- }
- inserrtRoom = function () {
- alert("新增宿舍")
- }
- updateRoom =function ( ) {
- alert("修改宿舍")
- }
- updateRecord =function (stu) {
- alert("查询记录:"${stu.stu_name})
- } </script></head><body><div class="row">
- <div class="col-md-6">
- <table class="table table-striped">
- <tr>
- <th>ID</th>
- <th>姓名</th>
- <th>性别</th>
- <th>学院</th>
- <th>入学时间</th>
- <th>宿舍号</th>
- <td><button class="btn btn-success" onclick="return inserrtStudent()" >新增学生</button></td>
- <td><button class="btn btn-success" onclick=" return inserrtRoom()">新增宿舍</button></td>
- </tr>
- <c:if test="${not empty students}">
- <c:forEach items="${students}" var="stu">
- <tr>
- <td>${stu.stuId}</td>
- <td>${stu.stuName}</td>
- <td>${stu.stuSex}</td>
- <td>${stu.acadimy}</td>
- <td>${stu.date}</td>
- <td>${stu.room}</td>
- <td><button class="btn btn-default" onclick="return updateRoom(${stu})">修改宿舍</button></td>
- <td><button class="btn btn-default" onclick="return updateRecord()">查询记录</button></td>
-
- </tr>
- </c:forEach>
- </c:if>
-
- </table>
- </div></div><script src="https://cdn.jsdelivr.net/npm/jquery@1.12.4/dist/jquery.min.js"></script><!-- 加载 Bootstrap 的所有 JavaScript 插件。你也可以根据需要只加载单个插件。 --><script src="https://cdn.jsdelivr.net/npm/bootstrap@3.3.7/dist/js/bootstrap.min.js"></script></body></html>12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667686970

注意:StudentController注解是 @Controller 而不是 RestController 。
- /**
- *
- * @author 艾科
- * @since 2020-07-08
- */@Controller@RequestMapping("/student")public class StudentController { @Autowired
- StudentMapper studentMapper; @RequestMapping(value = "findall")
- public String findAll(Model model) {// Mybatis plus 查询 student 表中的数据 返回List 类型// 相当于: SELECT stu_id,stu_name,stu_sex,date,room,acadimy FROM student
- List<Student> list = studentMapper.selectList(null);
- model.addAttribute("students", list); return "student";
- }
-
- }12345678910111213141516171819202122

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