自用 MyBatis-Plus 配置
pom.xml
<!-- mybatis-plus 增强CRUD -->
<dependency>
<groupId>com.baomidou</groupId>
<artifactId>mybatis-plus-boot-starter</artifactId>
<version>3.4.2</version>
</dependency>
<!-- pagehelper 分页插件 -->
<dependency>
<groupId>com.github.pagehelper</groupId>
<artifactId>pagehelper-spring-boot-starter</artifactId>
<version>1.3.1</version>
</dependency>
application.yml
mybatis-plus:
# 搜索指定包别名
type-aliases-package: com.hime.domain
# 配置mapper的扫描,找到所有的mapper.xml映射文件
mapper-locations: classpath*:mapper/**/*Mapper.xml
configuration:
# 全局映射器启用缓存
cache-enabled: false
# 允许 JDBC 支持自动生成主键
use-generated-keys: false
# 配置默认的执行器
default-executor-type: REUSE
# 驼峰式命名
map-underscore-to-camel-case: true
# 指定 MyBatis 所用日志的具体实现
log-impl: org.apache.ibatis.logging.slf4j.Slf4jImpl
# 加载全局的配置文件
# configLocation: classpath:mybatis/mybatis-config.xml
# PageHelper分页插件
pagehelper:
helper-dialect: mysql
reasonable: true
support-methods-arguments: true
params: count=countSql
java
MybatisPlusConfig.java
package com.hime.core.config.mybatis;
import com.baomidou.mybatisplus.annotation.DbType;
import com.baomidou.mybatisplus.autoconfigure.MybatisPlusPropertiesCustomizer;
import com.baomidou.mybatisplus.extension.incrementer.H2KeyGenerator;
import com.baomidou.mybatisplus.extension.incrementer.OracleKeyGenerator;
import com.baomidou.mybatisplus.extension.plugins.MybatisPlusInterceptor;
import com.baomidou.mybatisplus.extension.plugins.inner.BlockAttackInnerInterceptor;
import com.baomidou.mybatisplus.extension.plugins.inner.OptimisticLockerInnerInterceptor;
import com.baomidou.mybatisplus.extension.plugins.inner.PaginationInnerInterceptor;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.transaction.annotation.EnableTransactionManagement;
/**
* @author lrq
* @date 2021/12/23 16:03
*/
@EnableTransactionManagement(proxyTargetClass = true)
@Configuration
public class MybatisPlusConfig {
@Bean
public MybatisPlusInterceptor mybatisPlusInterceptor()
{
MybatisPlusInterceptor interceptor = new MybatisPlusInterceptor();
// 分页插件
interceptor.addInnerInterceptor(paginationInnerInterceptor());
// 乐观锁插件
interceptor.addInnerInterceptor(new OptimisticLockerInnerInterceptor());
// 阻断插件 如果是对全表的删除或更新操作,就会终止该操作
interceptor.addInnerInterceptor(new BlockAttackInnerInterceptor());
// 日志打印插件
interceptor.addInnerInterceptor(new MybatisPlusAllSqlLog());
return interceptor;
}
@Bean
public SqlStatementInterceptor sqlStatementInterceptor()
{
return new SqlStatementInterceptor();
}
// /**
// * 注册oracle的主键
// * @return
// */
// @Bean
// public OracleKeyGenerator oracleKeyGenerator(){
// return new OracleKeyGenerator();
// }
/**
* 分页插件,自动识别数据库类型 https://baomidou.com/guide/interceptor-pagination.html
*/
public PaginationInnerInterceptor paginationInnerInterceptor()
{
PaginationInnerInterceptor paginationInnerInterceptor = new PaginationInnerInterceptor();
// 设置数据库类型为MYSQL
paginationInnerInterceptor.setDbType(DbType.MYSQL);
// 设置最大单页限制数量,默认 500 条,-1 不受限制
paginationInnerInterceptor.setMaxLimit(-1L);
return paginationInnerInterceptor;
}
}
MybatisPlusAllSqlLog.java MyBatis-plus 拦截器打印不带问号的完整sql语句
package com.hime.core.config.mybatis;
import com.baomidou.mybatisplus.extension.plugins.inner.InnerInterceptor;
import org.apache.ibatis.executor.Executor;
import org.apache.ibatis.mapping.BoundSql;
import org.apache.ibatis.mapping.MappedStatement;
import org.apache.ibatis.mapping.ParameterMapping;
import org.apache.ibatis.reflection.MetaObject;
import org.apache.ibatis.session.Configuration;
import org.apache.ibatis.session.ResultHandler;
import org.apache.ibatis.session.RowBounds;
import org.apache.ibatis.type.TypeHandlerRegistry;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.util.CollectionUtils;
import java.sql.SQLException;
import java.text.DateFormat;
import java.util.*;
import java.util.regex.Matcher;
/**
* MyBatis-plus 拦截器打印不带问号的完整sql语句
* @author lrq
* @date 2022/5/20 10:42
*/
public class MybatisPlusAllSqlLog implements InnerInterceptor {
public static final Logger log = LoggerFactory.getLogger("sys-sql");
@Override
public void beforeQuery(Executor executor, MappedStatement ms, Object parameter, RowBounds rowBounds, ResultHandler resultHandler, BoundSql boundSql) throws SQLException {
logInfo(boundSql, ms, parameter);
}
@Override
public void beforeUpdate(Executor executor, MappedStatement ms, Object parameter) throws SQLException {
BoundSql boundSql = ms.getBoundSql(parameter);
logInfo(boundSql, ms, parameter);
}
private static void logInfo(BoundSql boundSql,MappedStatement ms, Object parameter){
try {
log.info("parameter = " + parameter);
// 获取到节点的id,即sql语句的id
String sqlId = ms.getId();
log.info("sqlId = " + sqlId);
// 获取节点的配置
Configuration configuration = ms.getConfiguration();
// 获取到最终的sql语句
String sql = getSql(configuration, boundSql, sqlId);
log.info("完整的sql:{}",sql);
} catch (Exception e) {
log.error("异常:{}",e.getLocalizedMessage(),e);
}
}
// 封装了一下sql语句,使得结果返回完整xml路径下的sql语句节点id + sql语句
public static String getSql(Configuration configuration, BoundSql boundSql, String sqlId) {
return sqlId + ":" + showSql(configuration, boundSql);
}
// 进行?的替换
public static String showSql(Configuration configuration, BoundSql boundSql) {
// 获取参数
Object parameterObject = boundSql.getParameterObject();
List<ParameterMapping> parameterMappings = boundSql.getParameterMappings();
// sql语句中多个空格都用一个空格代替
String sql = boundSql.getSql().replaceAll("[\\s]+", " ");
if (!CollectionUtils.isEmpty(parameterMappings)&& parameterObject != null) {
// 获取类型处理器注册器,类型处理器的功能是进行java类型和数据库类型的转换
TypeHandlerRegistry typeHandlerRegistry = configuration.getTypeHandlerRegistry();
// 如果根据parameterObject.getClass()可以找到对应的类型,则替换
if (typeHandlerRegistry.hasTypeHandler(parameterObject.getClass())) {
sql = sql.replaceFirst("\\?",
Matcher.quoteReplacement(getParameterValue(parameterObject)));
} else {
// MetaObject主要是封装了originalObject对象,提供了get和set的方法用于获取和设置originalObject的属性值,主要支持对JavaBean、Collection、Map三种类型对象的操作
MetaObject metaObject = configuration.newMetaObject(parameterObject);
for (ParameterMapping parameterMapping : parameterMappings) {
String propertyName = parameterMapping.getProperty();
if (metaObject.hasGetter(propertyName)) {
Object obj = metaObject.getValue(propertyName);
sql = sql.replaceFirst("\\?",
Matcher.quoteReplacement(getParameterValue(obj)));
} else if (boundSql.hasAdditionalParameter(propertyName)) {
// 该分支是动态sql
Object obj = boundSql.getAdditionalParameter(propertyName);
sql = sql.replaceFirst("\\?",
Matcher.quoteReplacement(getParameterValue(obj)));
} else {
// 打印出缺失,提醒该参数缺失并防止错位
sql = sql.replaceFirst("\\?", "缺失");
}
}
}
}
return sql;
}
// 如果参数是String,则添加单引号, 如果是日期,则转换为时间格式器并加单引号; 对参数是null和不是null的情况作了处理
private static String getParameterValue(Object obj) {
String value;
if (obj instanceof String) {
value = "'" + obj.toString() + "'";
} else if (obj instanceof Date) {
DateFormat formatter = DateFormat.getDateTimeInstance(DateFormat.DEFAULT,
DateFormat.DEFAULT, Locale.CHINA);
value = "'" + formatter.format(new Date()) + "'";
} else {
if (obj != null) {
value = obj.toString();
} else {
value = "";
}
}
return value;
}
}
SqlStatementInterceptor.java mybatis执行sql耗时拦截器
package com.hime.core.config.mybatis;
import org.apache.ibatis.cache.CacheKey;
import org.apache.ibatis.executor.Executor;
import org.apache.ibatis.mapping.BoundSql;
import org.apache.ibatis.mapping.MappedStatement;
import org.apache.ibatis.plugin.*;
import org.apache.ibatis.session.ResultHandler;
import org.apache.ibatis.session.RowBounds;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.util.Properties;
/**
* mybatis执行sql耗时
*/
@Intercepts({
@Signature(type = Executor.class, method = "update", args = {MappedStatement.class,
Object.class}),
@Signature(type = Executor.class, method = "query", args = {MappedStatement.class,
Object.class, RowBounds.class, ResultHandler.class, CacheKey.class,BoundSql.class})})
@SuppressWarnings({"unchecked", "rawtypes"})
public class SqlStatementInterceptor implements Interceptor {
public static final Logger log = LoggerFactory.getLogger("sys-sql");
@Override
public Object intercept(Invocation invocation) throws Throwable {
long startTime = System.currentTimeMillis();
try {
return invocation.proceed();
} finally {
long timeConsuming = System.currentTimeMillis()-startTime;
log.info("执行SQL:{}ms", timeConsuming);
if(timeConsuming>999&&timeConsuming<5000){
log.info("执行SQL大于1s:{}ms", timeConsuming);
}else if(timeConsuming>=5000&&timeConsuming<10000){
log.info("执行SQL大于5s:{}ms", timeConsuming);
}else if(timeConsuming>=10000){
log.info("执行SQL大于10s:{}ms", timeConsuming);
}
}
}
@Override
public Object plugin(Object target) {
return Plugin.wrap(target, this);
}
@Override
public void setProperties(Properties properties) {
}
}