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上课代码

This commit is contained in:
lucashu 2024-09-12 14:31:08 +08:00
parent 64e77dcfd3
commit d7c566794e
22 changed files with 273 additions and 31 deletions
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29
springboot1/pom.xml
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@ -60,17 +60,34 @@
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.mybatis.spring.boot</groupId>
<artifactId>mybatis-spring-boot-starter</artifactId>
<version>3.0.3</version>
</dependency>
<!--<dependency>-->
<!-- <groupId>org.mybatis.spring.boot</groupId>-->
<!-- <artifactId>mybatis-spring-boot-starter</artifactId>-->
<!-- <version>3.0.3</version>-->
<!--</dependency>-->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>8.0.25</version>
</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.freemarker</groupId>
<artifactId>freemarker</artifactId>
<version>2.3.31</version>
</dependency>
</dependencies>
<build>

33
springboot1/src/main/java/com/hnucm/springboot/springboot1/Main.java Normal file
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@ -0,0 +1,33 @@
package com.hnucm.springboot.springboot1;
import com.baomidou.mybatisplus.generator.FastAutoGenerator;
import com.baomidou.mybatisplus.generator.engine.FreemarkerTemplateEngine;
import java.nio.file.Paths;
public class Main {
public static void main(String[] args) {
FastAutoGenerator.create("jdbc:mysql://106.53.194.250:63306/mybatis2004712?serverTimezone=UTC"
, "2004712",
"@hnucm1254")
.globalConfig(builder -> builder
.author("张三")
.outputDir(Paths.get(System.getProperty("user.dir")) + "/src/main/java")
.commentDate("yyyy-MM-dd")
)
.packageConfig(builder -> builder
.parent("com.hnucm.springboot.springboot1")
.entity("model")
.mapper("dao")
.service("service")
.serviceImpl("service.impl")
.xml("mapper.xml")
)
.strategyConfig(builder -> builder
.entityBuilder()
.enableLombok()
)
.templateEngine(new FreemarkerTemplateEngine())
.execute();
}
}

2
springboot1/src/main/java/com/hnucm/springboot/springboot1/Springboot1Application.java
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@ -1,9 +1,11 @@
package com.hnucm.springboot.springboot1;
import org.mybatis.spring.annotation.MapperScan;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
@SpringBootApplication
// @MapperScan("com.hnucm.springboot.springboot1.dao")
public class Springboot1Application {
public static void main(String[] args) {

14
springboot1/src/main/java/com/hnucm/springboot/springboot1/controller/PersonController.java
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@ -1,5 +1,6 @@
package com.hnucm.springboot.springboot1.controller;
import com.hnucm.springboot.springboot1.model.IdCard;
import com.hnucm.springboot.springboot1.model.Person;
import com.hnucm.springboot.springboot1.service.PersonService;
import org.springframework.beans.factory.annotation.Autowired;
@ -38,14 +39,21 @@ public class PersonController {
}
@RequestMapping("addperson")
public String addPerson(Person person){
public String addPerson(String name,int age,String stuid,String classname){
Person person=new Person();
person.setAge(age);
person.setName(name);
IdCard idCard = new IdCard();
idCard.setStuid(stuid);
idCard.setClassname(classname);
person.setIdCard(idCard);
personService.addPerson(person);
return "redirect:personlist";
}
@RequestMapping("deleteperson")
public String deleteperson(int id){
personService.deletePerson(id);
public String deleteperson(int id,int idcardid){
personService.deletePerson(id,idcardid);
return "redirect:personlist";
}

11
springboot1/src/main/java/com/hnucm/springboot/springboot1/dao/IdcardMapper.java Normal file
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@ -0,0 +1,11 @@
package com.hnucm.springboot.springboot1.dao;
import com.hnucm.springboot.springboot1.model.IdCard;
import org.apache.ibatis.annotations.Mapper;
@Mapper
public interface IdcardMapper {
public IdCard getIdcard(int id);
public int deleteIdcard(int id);
public int addIdcard(IdCard idcard);
}

12
springboot1/src/main/java/com/hnucm/springboot/springboot1/dao/OrderMapper.java Normal file
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@ -0,0 +1,12 @@
package com.hnucm.springboot.springboot1.dao;
import com.hnucm.springboot.springboot1.model.IdCard;
import com.hnucm.springboot.springboot1.model.Order;
import org.apache.ibatis.annotations.Mapper;
import java.util.List;
@Mapper
public interface OrderMapper {
public List<Order> getOrderByUserId(int id);
}

1
springboot1/src/main/java/com/hnucm/springboot/springboot1/dao/PersonIdcardMapper.java
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@ -10,4 +10,5 @@ import java.util.List;
@Mapper
public interface PersonIdcardMapper {
public List<Person> getAllPersons();
public List<Person> getAllPersons1();
}

12
springboot1/src/main/java/com/hnucm/springboot/springboot1/dao/ProducatMapper.java Normal file
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@ -0,0 +1,12 @@
package com.hnucm.springboot.springboot1.dao;
import com.hnucm.springboot.springboot1.model.Order;
import com.hnucm.springboot.springboot1.model.Product;
import org.apache.ibatis.annotations.Mapper;
import java.util.List;
@Mapper
public interface ProducatMapper {
public List<Product> getProductByOrderId(int id);
}

14
springboot1/src/main/java/com/hnucm/springboot/springboot1/model/Order.java Normal file
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@ -0,0 +1,14 @@
package com.hnucm.springboot.springboot1.model;
import lombok.Data;
import java.util.List;
@Data
public class Order {
private int id;
private int userid;
private int orderprice;
private String orderinfo;
private List<Product> productList;
}

4
springboot1/src/main/java/com/hnucm/springboot/springboot1/model/Person.java
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@ -1,6 +1,9 @@
package com.hnucm.springboot.springboot1.model;
import lombok.Data;
import java.util.List;
//set+get
@Data
public class Person {
@ -8,4 +11,5 @@ public class Person {
private int age;
private int id;
private IdCard idCard;
private List<Order> orderList;
}

10
springboot1/src/main/java/com/hnucm/springboot/springboot1/model/Product.java Normal file
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@ -0,0 +1,10 @@
package com.hnucm.springboot.springboot1.model;
import lombok.Data;
@Data
public class Product {
private int id;
private int price;
private String productname;
}

2
springboot1/src/main/java/com/hnucm/springboot/springboot1/service/PersonService.java
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@ -7,7 +7,7 @@ import java.util.List;
public interface PersonService {
public List<Person> getPersons();
public int addPerson(Person person);
public int deletePerson(int id);
public int deletePerson(int id,int idcardid);
public int updatePerson(Person person);
public List<Person> searchPersonsbyName(String name);
}

21
springboot1/src/main/java/com/hnucm/springboot/springboot1/service/impl/PersonServiceImpl.java
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@ -1,11 +1,13 @@
package com.hnucm.springboot.springboot1.service.impl;
import com.hnucm.springboot.springboot1.dao.IdcardMapper;
import com.hnucm.springboot.springboot1.dao.PersonIdcardMapper;
import com.hnucm.springboot.springboot1.dao.PersonMapper;
import com.hnucm.springboot.springboot1.model.Person;
import com.hnucm.springboot.springboot1.service.PersonService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import java.util.List;
@ -18,21 +20,28 @@ public class PersonServiceImpl implements PersonService {
@Autowired
private PersonIdcardMapper personIdcardMapper;
@Autowired
private IdcardMapper idcardMapper;
@Override
public List<Person> getPersons() {
return personIdcardMapper.getAllPersons();
return personIdcardMapper.getAllPersons1();
}
//保证一致性 事务
@Transactional
@Override
public int deletePerson(int id,int idcardid) {
idcardMapper.deleteIdcard(idcardid);
return personMapper.deletePerson(id);
}
@Transactional
@Override
public int addPerson(Person person) {
idcardMapper.addIdcard(person.getIdCard());
return personMapper.addPerson(person);
}
@Override
public int deletePerson(int id) {
return personMapper.deletePerson(id);
}
@Override
public int updatePerson(Person person) {
return personMapper.updatePerson(person);

4
springboot1/src/main/resources/application.properties
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@ -14,8 +14,8 @@ spring.datasource.username=2004712
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.hnucm.springboot.springboot1.model
mybatis-plus.type-aliases-package=com.hnucm.springboot.springboot1.model
# ??
logging.level.com.hnucm.springboot.springboot1 = debug

18
springboot1/src/main/resources/mapper/IdcardMapper.xml Normal file
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@ -0,0 +1,18 @@
<?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.hnucm.springboot.springboot1.dao.IdcardMapper">
<select id="getIdcard" resultType="com.hnucm.springboot.springboot1.model.IdCard">
select * from idcard where id=#{id};
</select>
<delete id="deleteIdcard" parameterType="Integer">
delete from idcard where id = #{id};
</delete>
<!--useGeneratedKeys增加数据完成后立刻返回增加的主键-->
<insert id="addIdcard"
useGeneratedKeys="true"
keyProperty="id"
parameterType="com.hnucm.springboot.springboot1.model.IdCard">
insert into idcard(stuid,classname) values(#{stuid},#{classname});
</insert>
</mapper>

19
springboot1/src/main/resources/mapper/OrderMapper.xml Normal file
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@ -0,0 +1,19 @@
<?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.hnucm.springboot.springboot1.dao.OrderMapper">
<select id="getOrderByUserId" resultMap="OrderMap">
select * from orders where userid=#{id};
</select>
<resultMap id="OrderMap" type="com.hnucm.springboot.springboot1.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.hnucm.springboot.springboot1.model.Product"
select="com.hnucm.springboot.springboot1.dao.ProducatMapper.getProductByOrderId"
column="id">
</collection>
</resultMap>
</mapper>

23
springboot1/src/main/resources/mapper/PersonIdcardMapper.xml
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@ -1,6 +1,28 @@
<?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.hnucm.springboot.springboot1.dao.PersonIdcardMapper">
<select id="getAllPersons1" resultMap="PersonMap1">
select * from person;
</select>
<resultMap id="PersonMap1" type="com.hnucm.springboot.springboot1.model.Person">
<id column="id" property="id"/>
<result column="name" property="name"/>
<result column="age" property="age"/>
<association property="idCard"
column="idcardid"
select="com.hnucm.springboot.springboot1.dao.IdcardMapper.getIdcard"
javaType="com.hnucm.springboot.springboot1.model.IdCard">
</association>
<!--private List<Order> orderList; id -》 person查出来的数据字段传到 getOrderByUserId-->
<collection property="orderList"
column="id"
select="com.hnucm.springboot.springboot1.dao.OrderMapper.getOrderByUserId"
ofType="com.hnucm.springboot.springboot1.model.Order">
</collection>
</resultMap>
<!-- 数据库字段名字和类型Person 完全一致 resultType -->
<!--不一致 就用resultMap-->
<select id="getAllPersons" resultMap="PersonMap">
@ -18,6 +40,5 @@
<result column="stuid" property="stuid"/>
<result column="classname" property="classname"/>
</association>
</resultMap>
</mapper>

10
springboot1/src/main/resources/mapper/PersonMapper.xml
View File

@ -7,16 +7,18 @@
</select>
<!--1对1 1对多 多对多 查询（复杂） 增删 修 （单表） -->
<!--person表 idcard表 -->
<insert id="addPerson" parameterType="com.hnucm.springboot.springboot1.model.Person">
insert into person(name,age) values(#{name},#{age});
<!--person表 orders表 1对多 在多对1方加一个额外的字段记录1的一方主键 -->
<!--多对多 orders表 product表 多对多 需要增加一张中间表-->
<insert id="addPerson"
parameterType="com.hnucm.springboot.springboot1.model.Person">
insert into person(name,age,idcardid) values(#{name},#{age},#{idCard.id});
</insert>
<delete id="deletePerson" parameterType="Integer">
delete from person where id = #{id};
</delete>
<update id="updatePerson" parameterType="com.hnucm.springboot.springboot1.model.Person">
update person set name = #{name},age = #{age} where id = #{id};
</update>

10
springboot1/src/main/resources/mapper/ProducatMapper.xml Normal file
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@ -0,0 +1,10 @@
<?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.hnucm.springboot.springboot1.dao.ProducatMapper">
<select id="getProductByOrderId" resultType="com.hnucm.springboot.springboot1.model.Product">
select * from product where id in (
select productid from orders_product where orderid=#{id}
)
</select>
</mapper>

2
springboot1/src/main/resources/templates/addperson.html
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@ -10,6 +10,8 @@
<form th:action="@{/addperson}" method="post">
<input type="text" name="name" placeholder="姓名"><br/>
<input type="text" name="age" placeholder="年龄"><br/>
<input type="text" name="stuid" placeholder="学号"><br/>
<input type="text" name="classname" placeholder="班级"><br/>
<input type="submit" value="增加用户"></input>
</input>
</form>

34
springboot1/src/main/resources/templates/personlist.html
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@ -23,21 +23,39 @@
<td>姓名</td>
<td>学号</td>
<td>班级</td>
<td>删除操作</td>
<td>更新操作</td>
<td>订单</td>
</tr>
<tr th:each="person:${persons}">
<td th:text="${person.id}"></td>
<td th:text="${person.age}"></td>
<td th:text="${person.name}"></td>
<td th:text="${person.idCard.stuid}"></td>
<td th:text="${person.idCard.classname}"></td>
<td >
<a th:href="@{'/deleteperson?id='+${person.id}}">删除</a>
</td>
<td >
<a th:href="@{/updateperson(id=${person.id},age=${person.age},name=${person.name})}">更新</a>
</td>
<div th:if="${person.idCard} !=null">
<td th:text="${person.idCard.stuid}"></td>
<td th:text="${person.idCard.classname}"></td>
<td >
<a th:href="@{/deleteperson(id=${person.id},idcardid=${person.idCard.id})}">删除</a>
</td>
<td >
<a th:href="@{/updateperson(id=${person.id},age=${person.age},name=${person.name})}">更新</a>
</td>
</div>
<div th:if="${person.orderList} !=null ">
<td >
<ul th:each="order:${person.orderList}">
<li>
<div th:text="${order.orderinfo}"></div>
<div th:each="product:${order.productList}">
<div><span th:text="${product.productname}"></span></div>
</div>
</li>
</ul>
</td>
</div>
</tr>
</table>

19
untitled/.idea/dataSources.xml Normal file
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@ -0,0 +1,19 @@
<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="DataSourceManagerImpl" format="xml" multifile-model="true">
<data-source source="LOCAL" name="mybatis2004712@106.53.194.250" uuid="49fb1155-cceb-4aaa-b5a0-e4b94ae99142">
<driver-ref>mysql.8</driver-ref>
<synchronize>true</synchronize>
<imported>true</imported>
<remarks>$PROJECT_DIR$/../springboot1/src/main/resources/application.properties</remarks>
<jdbc-driver>com.mysql.cj.jdbc.Driver</jdbc-driver>
<jdbc-url>jdbc:mysql://106.53.194.250:63306/mybatis2004712?serverTimezone=UTC</jdbc-url>
<jdbc-additional-properties>
<property name="com.intellij.clouds.kubernetes.db.host.port" />
<property name="com.intellij.clouds.kubernetes.db.enabled" value="false" />
<property name="com.intellij.clouds.kubernetes.db.container.port" />
</jdbc-additional-properties>
<working-dir>$ProjectFileDir$</working-dir>
</data-source>
</component>
</project>