Commit a9832cb5 authored by HEQIHONG's avatar HEQIHONG

提交作业

parent ea66bec5
<?xml version="1.0" encoding="UTF-8"?>
<?xml version="1.0" encoding="UTF-8"?>
<classpath>
<classpathentry kind="src" path="src"/>
<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER"/>
<classpathentry kind="output" path="bin"/>
</classpath>
<?xml version="1.0" encoding="UTF-8"?>
<?xml version="1.0" encoding="UTF-8"?>
<projectDescription>
<name>heqihongMyBatisWork</name>
<comment></comment>
<projects>
</projects>
<buildSpec>
<buildCommand>
<name>org.eclipse.jdt.core.javabuilder</name>
<arguments>
</arguments>
</buildCommand>
</buildSpec>
<natures>
<nature>org.eclipse.jdt.core.javanature</nature>
</natures>
</projectDescription>
<project xmlns="http://maven.apache.org/POM/4.0.0"
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.cesgroup</groupId>
<artifactId>mybatiswork</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>
<name>mybatiswork</name>
<url>http://maven.apache.org</url>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<dependencies>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>8.0.17</version>
</dependency>
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
<version>3.2.8</version>
</dependency>
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>fastjson</artifactId>
<version>1.2.54</version>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.12</version>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<configuration>
<source>1.8</source>
<target>1.8</target>
</configuration>
</plugin>
</plugins>
</build>
</project>
package main.java.com.cesgroup.mybatis;
package main.java.com.cesgroup.mybatis;
import java.sql.CallableStatement;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import org.apache.ibatis.type.BaseTypeHandler;
import org.apache.ibatis.type.JdbcType;
import com.alibaba.fastjson.JSONObject;
public class TypeHandle extends BaseTypeHandler<JSONObject>{
@Override
public JSONObject getNullableResult(ResultSet rs, String cloumName) throws SQLException {
String infoJsonString= rs.getString(cloumName);
JSONObject infObject=null;
try {
infObject = JSONObject.parseObject(infoJsonString);
//System.out.println("----将json串转成json对象成功!----");
} catch (Exception e) {
System.err.println("将json串转成json对象失败!");;
}
return infObject;
}
@Override
public JSONObject getNullableResult(CallableStatement arg0, int arg1) throws SQLException {
return null;
}
@Override
public void setNonNullParameter(PreparedStatement statement, int i, JSONObject infoObject, JdbcType jdbcType) throws SQLException {
try {
String userInfoString= JSONObject.toJSONString(infoObject);
statement.setString(i, userInfoString);
//System.out.println("----将对象转化为字符串成功----:"+userInfoString);
} catch (Exception e) {
System.out.println("----将对象转化为字符串失败----");
}
}
@Override
public JSONObject getNullableResult(ResultSet arg0, int arg1) throws SQLException {
return null;
}
}
\ No newline at end of file
package main.java.com.cesgroup.mybatis;
package main.java.com.cesgroup.mybatis;
import java.io.Serializable;
import com.alibaba.fastjson.JSONObject;
public class User implements Serializable {
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public JSONObject getInfo() {
return info;
}
public void setInfo(JSONObject info) {
this.info = info;
}
@Override
public String toString() {
return "User [id=" + id + ", name=" + name + ", info=" + JSONObject.toJSONString(info) + "]";
}
int id;
String name;
JSONObject info;
}
<?xml version="1.0" encoding="UTF-8" ?>
<?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:根标签,namespace:命名空间,随便写,一般保证命名空间唯一 -->
<mapper namespace="MyMapper">
<!-- statement,内容:sql语句。id:唯一标识,随便写,在同一个命名空间下保持唯一
resultType:sql语句查询结果集的封装类型,tb_user即为数据库中的表
-->
<select id="selectUser" resultType="com.cesgroup.mybatiswork.entity.User">
select * from mybatis where id = #{id}
</select>
<insert id="insert" parameterType="com.cesgroup.mybatiswork.entity.User">
INSERT INTO mybatis (id, name, info)
VALUES(#{id}, #{name}, #{info})
</insert>
<insert id="insertBatch">
INSERT INTO mybatis
(id, name, info)
VALUES
<foreach collection ="list" item="user" separator =",">
(#{user.id}, #{user.name}, #{user.info})
</foreach >
</insert>
</mapper>
\ No newline at end of file
driver=com.mysql.cj.jdbc.Driver
driver=com.mysql.cj.jdbc.Driver
url=jdbc:mysql://localhost:3306/test?seUnicode=true&characterEncoding=utf8&useSSL=false&serverTimezone=Hongkong
username=root
password=123456
\ No newline at end of file
<?xml version="1.0" encoding="UTF-8" ?>
<?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">
<!-- 根标签 -->
<configuration>
<properties resource="db.properties"></properties>
<typeHandlers>
<typeHandler handler="com.cesgroup.mybatiswork.handle.MyTypeHandle"></typeHandler>
</typeHandlers>
<!-- 环境,可以配置多个,default:指定采用哪个环境 -->
<environments default="dev">
<!-- id:唯一标识 -->
<environment id="dev">
<!-- 事务管理器,JDBC类型的事务管理器 -->
<transactionManager type="JDBC" />
<!-- 数据源,池类型的数据源 -->
<dataSource type="POOLED">
<property name="driver" value="${driver}" /> <!-- 配置了properties,所以可以直接引用 -->
<property name="url" value="${url}" />
<property name="username" value="${username}" />
<property name="password" value="${password}" />
</dataSource>
</environment>
</environments>
<mappers>
<mapper resource="MyMapper.xml" />
</mappers>
</configuration>
\ No newline at end of file
/*
/*
Navicat Premium Data Transfer
Source Server : 本机
Source Server Type : MySQL
Source Server Version : 80015
Source Host : localhost:3306
Source Schema : test
Target Server Type : MySQL
Target Server Version : 80015
File Encoding : 65001
Date: 09/12/2019 10:25:06
*/
SET NAMES utf8mb4;
SET FOREIGN_KEY_CHECKS = 0;
-- ----------------------------
-- Table structure for mybatis
-- ----------------------------
DROP TABLE IF EXISTS `mybatis`;
CREATE TABLE `mybatis` (
`id` int(32) NOT NULL,
`name` varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_0900_ai_ci NULL DEFAULT NULL,
`info` varchar(1000) CHARACTER SET utf8mb4 COLLATE utf8mb4_0900_ai_ci NULL DEFAULT NULL,
PRIMARY KEY (`id`) USING BTREE
) ENGINE = InnoDB CHARACTER SET = utf8mb4 COLLATE = utf8mb4_0900_ai_ci ROW_FORMAT = Dynamic;
SET FOREIGN_KEY_CHECKS = 1;
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