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第八次课

This commit is contained in:
raohanghui 2024-09-13 16:38:33 +08:00
parent 0e1642448b
commit 6b28804ac2
18 changed files with 305 additions and 8 deletions
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17
上课代码/secondweek/springboot/springboot/pom.xml
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@ -60,12 +60,23 @@
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>com.baomidou</groupId>
<artifactId>mybatis-plus-spring-boot3-starter</artifactId>
<version>3.5.7</version>
</dependency>
<dependency>
<groupId>com.baomidou</groupId>
<artifactId>mybatis-plus-generator</artifactId>
<version>3.5.7</version>
</dependency>
<dependency>
<groupId>org.mybatis.spring.boot</groupId>
<artifactId>mybatis-spring-boot-starter</artifactId>
<version>3.0.3</version>
<groupId>org.freemarker</groupId>
<artifactId>freemarker</artifactId>
<version>2.3.31</version>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>

17
上课代码/secondweek/springboot/springboot/src/main/java/com/raohanghui/springboot/springboot/Controllor/NewsController.java Normal file
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@ -0,0 +1,17 @@
package com.raohanghui.springboot.springboot.Controllor;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
@Controller
public class NewsController {
@RequestMapping("/news/{newsid}")
public String news(@PathVariable("newsid") String newsid, Model model){
// todo 根据newsid去数据库查询新闻内容 新闻内容返回页面
model.addAttribute("newsid",newsid);
return "news.html";
}
}

55
上课代码/secondweek/springboot/springboot/src/main/java/com/raohanghui/springboot/springboot/Controllor/StudentController.java Normal file
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@ -0,0 +1,55 @@
package com.raohanghui.springboot.springboot.Controllor;
import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.raohanghui.springboot.springboot.model.Student;
import com.raohanghui.springboot.springboot.service.IStudentService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.stereotype.Controller;
/**
* <p>
* 前端控制器
* </p>
*
* @author 张三
* @since 2024-09-12
*/
@Controller
@RequestMapping("/student")
public class StudentController {
// 增删改查方法
@Autowired
IStudentService studentService;
@RequestMapping("studentlist")
public String getStudent(Model model){
Page<Student> page = new Page<>(4,5);
model.addAttribute("studentlist",studentService.page(page).getRecords());
// QueryWrapper<Student> queryWrapper = new QueryWrapper<>();
// queryWrapper.like("name","test");
// model.addAttribute("studentlist"
// ,studentService.getBaseMapper().selectList(queryWrapper));
// Vue
return "studentlist.html";
}
@RequestMapping("addstudentpage")
public String addStudentPage(){
return "addstudent.html";
}
@RequestMapping("addstudent")
public String addStudent(String name,int age,String classname){
Student student = new Student();
student.setName(name);
student.setAge(age);
student.setClassname(classname);
studentService.save(student);
return "redirect:/student/studentlist";
}
}

26
上课代码/secondweek/springboot/springboot/src/main/java/com/raohanghui/springboot/springboot/Main.java Normal file
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@ -0,0 +1,26 @@
package com.raohanghui.springboot.springboot
public class Main {
public static void main(String[] args) {
FastAutoGenerator.create("jdbc:mysql://106.53.194.250:63306/202101080104?serverTimezone=UTC", "202001080141", "@hnucm1254")
.globalConfig(builder -> builder
.author("raohanghui")
.outputDir(Paths.get(System.getProperty("user.dir")) + "/src/main/java")
.commentDate("yyyy-MM-dd")
)
.packageConfig(builder -> builder
.parent("com.raohanghui.springboot.springboot")
.entity("entity")
.mapper("dao")
.service("service")
.serviceImpl("service.impl")
.xml("mapper.xml")
)
.strategyConfig(builder -> builder
.entityBuilder()
.enableLombok()
)
.templateEngine(new FreemarkerTemplateEngine())
.execute();
}
}

10
上课代码/secondweek/springboot/springboot/src/main/java/com/raohanghui/springboot/springboot/dao/ProductMapper.java Normal file
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@ -0,0 +1,10 @@
package com.raohanghui.springboot.springboot.dao;
import com.raohanghui.springboot.springboot.model.Person;
import org.apache.ibatis.annotations.Mapper;
import java.util.List;
public interface ProductMapper {
public List<Product> getProductByOrderId();
}

18
上课代码/secondweek/springboot/springboot/src/main/java/com/raohanghui/springboot/springboot/dao/StudentMapper.java Normal file
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@ -0,0 +1,18 @@
package com.raohanghui.springboot.springboot.dao;
import com.raohanghui.springboot.springboot.model.Student;
import com.baomidou.mybatisplus.core.mapper.BaseMapper;
import org.apache.ibatis.annotations.Mapper;
/**
* <p>
* Mapper 接口
* </p>
*
* @author 张三
* @since 2024-09-12
*/
@Mapper
public interface StudentMapper extends BaseMapper<Student> {
}

1
上课代码/secondweek/springboot/springboot/src/main/java/com/raohanghui/springboot/springboot/model/Order.java
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@ -7,4 +7,5 @@ public class Order {
private int userid;
private int orderprice;
private String orderinfo;
private List<Product> productList;
}

9
上课代码/secondweek/springboot/springboot/src/main/java/com/raohanghui/springboot/springboot/model/Product.java Normal file
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@ -0,0 +1,9 @@
package com.raohanghui.springboot.springboot.model;
import lombok.Data;
public class Product {
private int id;
private int price;
private String productname;
}

31
上课代码/secondweek/springboot/springboot/src/main/java/com/raohanghui/springboot/springboot/model/Student.java Normal file
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@ -0,0 +1,31 @@
package com.raohanghui.springboot.springboot.model;
import com.baomidou.mybatisplus.annotation.IdType;
import com.baomidou.mybatisplus.annotation.TableId;
import java.io.Serializable;
import lombok.Getter;
import lombok.Setter;
/**
* <p>
*
* </p>
*
* @author 张三
* @since 2024-09-12
*/
@Getter
@Setter
public class Student implements Serializable {
private static final long serialVersionUID = 1L;
@TableId(value = "id", type = IdType.AUTO)
private Integer id;
private Integer age;
private String name;
private String classname;
}

16
上课代码/secondweek/springboot/springboot/src/main/java/com/raohanghui/springboot/springboot/service/IStudentService.java Normal file
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@ -0,0 +1,16 @@
package com.raohanghui.springboot.springboot.service;
import com.raohanghui.springboot.springboot.model.Student;
import com.baomidou.mybatisplus.extension.service.IService;
/**
* <p>
* 服务类
* </p>
*
* @author 张三
* @since 2024-09-12
*/
public interface IStudentService extends IService<Student> {
}

20
上课代码/secondweek/springboot/springboot/src/main/java/com/raohanghui/springboot/springboot/service/impl/StudentServiceImpl.java Normal file
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@ -0,0 +1,20 @@
package com.raohanghui.springboot.springboot.service.impl;
import com.roahanghui.springboot.springboot.model.Student;
import com.raohanghui.springboot.springboot.dao.StudentMapper;
import com.raohanghui.springboot.springboot.service.IStudentService;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import org.springframework.stereotype.Service;
/**
* <p>
* 服务实现类
* </p>
*
* @author 张三
* @since 2024-09-12
*/
@Service
public class StudentServiceImpl extends ServiceImpl<StudentMapper, Student> implements IStudentService {
}

8
上课代码/secondweek/springboot/springboot/src/main/resources/application.properties
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@ -8,14 +8,14 @@ spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver
# ?????
spring.datasource.name=defaultDataSource
# ???????
spring.datasource.url=jdbc:mysql://106.53.194.250:63306/202101080104?serverTimezone=UTC
spring.datasource.url=jdbc:mysql://106.53.194.250:63306/202001080141?serverTimezone=UTC
# ??????&???
spring.datasource.username=202101080104
spring.datasource.username=202001080141
spring.datasource.password=@hnucm1254
#??????????MyBatis??
#??Mybatis?Mapper??
mybatis.mapper-locations=classpath:mapper/*.xml
mybatis-plus.mapper-locations=classpath:mapper/*.xml
#??Mybatis?????
mybatis.type-aliases-package=com.example.springmybatis.pojo
mybatis-plus.type-aliases-package=com.example.springmybatis.pojo
logging.level.com.example.springmybatis = debug

15
上课代码/secondweek/springboot/springboot/src/main/resources/mapper/OrderMapper.xml
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@ -3,8 +3,21 @@
<mapper namespace="com.raohanghui.springboot.springboot.dao.OrderMapper">
<select id="getOrderById" parameterType="Integer"
resultType="com.raohanghui.springboot.springboot.model.Order">
resultType="com.raohanghui.springboot.springboot.model.Order"
resultMap="OrderMap">
select * from orders where userid=#{id}
</select>
<resultMap id="OrderMap" type="com.raohanghui.springboot.springboot.model.Order">
<id column="id" property="id" />
<result column="userid" property="userid" />
<result column="orderprice" property="orderprice" />
<result column="orderinfo" property="orderinfo" />
<collection property="productList"
ofType="com.raohanghui.springboot.springboot.model.Product">
select="com.raohanghui.springboot.springboot.dao.ProductMapper.getProductByOrderId"
column="id"
</collection>
</resultMap>
</mapper>

9
上课代码/secondweek/springboot/springboot/src/main/resources/mapper/ProductMapper.xml Normal file
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@ -0,0 +1,9 @@
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="com.raohanghui.springboot.springboot.dao.ProductMapper">
<select id="getProductByOrderId" resultType="com.raohanghui.springboot.springboot.model.Product"
select * from product where id in (
select productid from order_product where orde_id = #{id}
)
)
</mapper>

5
上课代码/secondweek/springboot/springboot/src/main/resources/mapper/StudentMapper.xml Normal file
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@ -0,0 +1,5 @@
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="com.raohanghui.springboot.springboot.dao.StudentMapper">
</mapper>

18
上课代码/secondweek/springboot/springboot/src/main/resources/templates/addstudent.html Normal file
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@ -0,0 +1,18 @@
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
</head>
<body>
<h1>添加人员页面</h1>
<form th:action="@{/student/addstudent}" method="post">
<input type="text" name="name" placeholder="姓名"><br/>
<input type="text" name="age" placeholder="年龄"><br/>
<input type="text" name="classname" placeholder="班级"><br/>
<input type="submit" value="增加用户"></input>
</input>
</form>
</body>
</html>

13
上课代码/secondweek/springboot/springboot/src/main/resources/templates/news.html Normal file
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@ -0,0 +1,13 @@
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
</head>
<body>
<h1>新闻内容****************</h1>
<div th:text="${newsid}"> </div>
<img th:src="@{/123.png}" alt="">
<video th:src="@{/123.png}"></video>
</body>
</html>

25
上课代码/secondweek/springboot/springboot/src/main/resources/templates/studentlist.html Normal file
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@ -0,0 +1,25 @@
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
</head>
<body>
<h1>人员列表页面</h1>
<table border="1">
<tr>
<td>id</td>
<td>年龄</td>
<td>姓名</td>
<td>班级</td>
</tr>
<tr th:each="student:${studentlist}">
<td th:text="${student.id}"></td>
<td th:text="${student.age}"></td>
<td th:text="${student.name}"></td>
<td th:text="${student.classname}"></td>
</tr>
</table>
</body>
</html>