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MybatisTraning
Commit cfe63413 authored by liuwei's avatar liuwei
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刘维作业提交

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刘维_mybatis2/.gitignore 0 → 100644
View file @ cfe63413
HELP.md
HELP.md
target/
!.mvn/wrapper/maven-wrapper.jar
!**/src/main/**
!**/src/test/**
### STS ###
.apt_generated
.classpath
.factorypath
.project
.settings
.springBeans
.sts4-cache
### IntelliJ IDEA ###
.idea
*.iws
*.iml
*.ipr
### NetBeans ###
/nbproject/private/
/nbbuild/
/dist/
/nbdist/
/.nb-gradle/
build/
### VS Code ###
.vscode/
刘维_mybatis2/pom.xml 0 → 100644
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<?xml version="1.0" encoding="UTF-8"?>
<?xml version="1.0" encoding="UTF-8"?>
<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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.2.2.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.example</groupId>
<artifactId>cuixiaowei</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>cuixiaowei</name>
<description>Demo project for Spring Boot</description>
<properties>
<java.version>1.8</java.version>
</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>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</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>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
刘维_mybatis2/src/main/java/com/example/liuwei/Application.java 0 → 100644
View file @ cfe63413
package com.example.cuixiaowei;
package com.example.cuixiaowei;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
@SpringBootApplication
public class Application {
public static void main(String[] args) {
SpringApplication.run(Application.class, args);
}
}
刘维_mybatis2/src/main/java/com/example/liuwei/demo/MyInterceptor.java 0 → 100644
View file @ cfe63413
package com.example.cuixiaowei.demo;
package com.example.cuixiaowei.demo;
import com.alibaba.fastjson.JSONObject;
import org.apache.ibatis.executor.statement.StatementHandler;
import org.apache.ibatis.logging.Log;
import org.apache.ibatis.logging.LogFactory;
import org.apache.ibatis.mapping.BoundSql;
import org.apache.ibatis.mapping.ParameterMapping;
import org.apache.ibatis.plugin.*;
import org.apache.ibatis.session.ResultHandler;
import java.sql.Statement;
import java.util.List;
import java.util.Map;
import java.util.Properties;
/**
* <p>
*
* </p>
*
* @author wei.liu
* @date 2020/1/2
*/
@Intercepts({
@Signature(type = StatementHandler.class, method = "query", args = {Statement.class, ResultHandler.class}),
@Signature(type = StatementHandler.class, method = "update", args = {Statement.class}),
@Signature(type = StatementHandler.class, method = "batch", args = { Statement.class })
})
public class MyInterceptor implements Interceptor {
final Log log = LogFactory.getLog(MyTypeHandle.class);
@Override
public Object intercept(Invocation invocation) throws Throwable {
Object target = invocation.getTarget();
long startTime = System.currentTimeMillis();
StatementHandler statementHandler = (StatementHandler)target;
try {
return invocation.proceed();
} finally {
long endTime = System.currentTimeMillis();
long sqlCost = endTime - startTime;
BoundSql boundSql = statementHandler.getBoundSql();
String sql = boundSql.getSql();
Object parameterObject = boundSql.getParameterObject();
List<ParameterMapping> parameterMappingList = boundSql.getParameterMappings();
// 格式化Sql语句，去除换行符，替换参数
sql = formatSql(sql, parameterObject, parameterMappingList);
log.warn("执行耗时[" + sqlCost + "ms] " + "SQL：" + sql + ";");
}
}
private String formatSql(String sql, Object parameterObject, List<ParameterMapping> parameterMappingList) {
sql = sql.replaceAll("\r|\n|\t", " ").replaceAll("\\s+", " ");
if(parameterObject == null){
sql = sql.replaceAll("\\?", " null");
return sql;
}
if(Map.class.isAssignableFrom(parameterObject.getClass())){
Map pb = (Map)parameterObject;
for(ParameterMapping temp: parameterMappingList){
if (pb.get(temp.getProperty()) != null){
if (pb.get(temp.getProperty()).getClass().isAssignableFrom(JSONObject.class)){
JSONObject infObject = (JSONObject) pb.get(temp.getProperty());
sql = sql.replaceFirst("\\?","'" + infObject.toJSONString() + "'");
}else {
sql = sql.replaceFirst("\\?","'" + pb.get(temp.getProperty()) + "'");
}
}else {
sql = sql.replaceFirst("\\?","'null'");
}
}
}
if(String.class.isAssignableFrom(parameterObject.getClass())) {
sql = sql.replaceFirst("\\?", parameterObject == null ? "null" : "'" + parameterObject + "'");
}
if(Number.class.isAssignableFrom(parameterObject.getClass())) {
sql = sql.replaceFirst("\\?", parameterObject == null ? "null" : parameterObject.toString());
}
return sql;
}
@Override
public Object plugin(Object o) {
return Plugin.wrap(o, this);
}
@Override
public void setProperties(Properties properties) {
}
}
刘维_mybatis2/src/main/java/com/example/liuwei/demo/MyTypeHandle.java 0 → 100644
View file @ cfe63413
package com.example.cuixiaowei.demo;
package com.example.cuixiaowei.demo;
import com.alibaba.fastjson.JSONObject;
import org.apache.ibatis.type.BaseTypeHandler;
import org.apache.ibatis.type.JdbcType;
import java.sql.CallableStatement;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
/**
* <p>
*
* </p>
*
* @author wei.liu
* @date 2020/1/2
*/
public class MyTypeHandle extends BaseTypeHandler<JSONObject>{
@Override
public JSONObject getNullableResult(ResultSet rs, String columnsName) throws SQLException {
String infoJsonString= rs.getString(columnsName);
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;
}
}
刘维_mybatis2/src/main/java/com/example/liuwei/demo/User.java 0 → 100644
View file @ cfe63413
package com.example.cuixiaowei.demo;
package com.example.cuixiaowei.demo;
import com.alibaba.fastjson.JSONObject;
import lombok.*;
import lombok.experimental.Accessors;
import java.io.Serializable;
/**
* <p>
*
* </p>
*
* @author wei.liu
* @date 2020/1/2
*/
@NoArgsConstructor
@AllArgsConstructor
@EqualsAndHashCode(callSuper = false)
@ToString
@Builder
@Getter
@Setter
@Accessors(chain = true)
public class User implements Serializable {
private String id;
private String name;
private String sex;
private String age;
private JSONObject info;
}
刘维_mybatis2/src/main/resources/MyMapper.xml 0 → 100644
View file @ cfe63413
<?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 namespace="MyMapper">
<select id="selectUser" resultType="com.example.liuwei.demo.User">
select * from user where id = #{id}
</select>
<insert id="insert" parameterType="com.example.liuwei.demo.User">
INSERT INTO user (id, name,sex,age, info)
VALUES(#{id}, #{name}, #{sex},#{age}, #{info})
</insert>
</mapper>
\ No newline at end of file
刘维_mybatis2/src/main/resources/application.properties 0 → 100644
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server.port=8080
server.port=8080
server.servlet.context-path=/demo
刘维_mybatis2/src/main/resources/db.properties 0 → 100644
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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=GMT%2B8
username=root
password=root
\ No newline at end of file
刘维_mybatis2/src/main/resources/mybatis-config.xml 0 → 100644
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<?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">
<configuration>
<properties resource="db.properties"></properties>
<typeHandlers>
<typeHandler handler="com.example.liuwei.demo.MyTypeHandle"></typeHandler>
</typeHandlers>
<plugins>
<plugin interceptor="com.example.liuwei.demo.MyInterceptor">
</plugin>
</plugins>
<!-- 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>
刘维_mybatis2/src/test/java/com/example/cuixiaowei/ApplicationTests.java 0 → 100644
View file @ cfe63413
package com.example.cuixiaowei;
package com.example.cuixiaowei;
import com.alibaba.fastjson.JSONObject;
import com.example.cuixiaowei.demo.User;
import org.apache.ibatis.io.Resources;
import org.apache.ibatis.session.SqlSession;
import org.apache.ibatis.session.SqlSessionFactory;
import org.apache.ibatis.session.SqlSessionFactoryBuilder;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.test.context.junit4.SpringRunner;
import java.io.InputStream;
import java.util.HashMap;
import java.util.Map;
import java.util.UUID;
@RunWith(SpringRunner.class)
@SpringBootTest
public class ApplicationTests {
private SqlSession sqlSession=null;
private SqlSessionFactory sqlSessionFactory;
@Before
public void configMybatis() {
// 指定全局配置文件
String resource = "mybatis-config.xml";
// 读取配置文件
InputStream inputStream;
try {
inputStream = Resources.getResourceAsStream(resource);
// 构建sqlSessionFactory
sqlSessionFactory = new SqlSessionFactoryBuilder().build(inputStream);
// 获取sqlSession
sqlSession= sqlSessionFactory.openSession(false);
} catch (Exception e) {
e.printStackTrace();
} finally {
if(sqlSession!=null) {
//sqlSession.close();
}
}
}
/**
*
* 自定义解析器查询测试
*
* json串字段为 info
*/
@Test
public void testSelectUser() {
User user = sqlSession.selectOne("MyMapper.selectUser", "31c6cb92-132d-4d6f-8ceb-24db6c3b6c29");
System.out.println(user);
sqlSession.close();
}
/**
*
* 自定义类型解析器插入测试
*/
@Test
public void testInsertJsonObject() {
JSONObject userInfObject = new JSONObject();
userInfObject.put("test", "测试");
Map user = new HashMap();
user.put("id", UUID.randomUUID().toString());
user.put("name", "test");
user.put("info", userInfObject);
int a=sqlSession.insert("MyMapper.insert",user);
sqlSession.commit();
System.out.println("影响的行数:"+a);
}
}
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