add 增加 自定义 批量insert方法

疯狂的狮子li

2021-06-18 c98ab8fb511849912717923d56f3192472dbbd05

add 增加 自定义 批量insert方法

 ruoyi-common/src/main/java/com/ruoyi/common/core/mybatisplus/methods/InsertAll.java

¶Ô±ÈÐÂÎļþ
@@ -0,0 +1,47 @@
package com.ruoyi.common.core.mybatisplus.methods;

import org.apache.ibatis.executor.keygen.NoKeyGenerator;
import org.apache.ibatis.mapping.MappedStatement;
import org.apache.ibatis.mapping.SqlSource;

import com.baomidou.mybatisplus.core.injector.AbstractMethod;
import com.baomidou.mybatisplus.core.metadata.TableInfo;

/**
 * å•sql批量插入
 *
 * @author Lion Li
 */
public class InsertAll extends AbstractMethod {

    @Override
    public MappedStatement injectMappedStatement(Class<?> mapperClass, Class<?> modelClass, TableInfo tableInfo) {
        final String sql = "<script>insert into %s %s values %s</script>";
        final String fieldSql = prepareFieldSql(tableInfo);
        final String valueSql = prepareValuesSqlForMysqlBatch(tableInfo);
        final String sqlResult = String.format(sql, tableInfo.getTableName(), fieldSql, valueSql);
        SqlSource sqlSource = languageDriver.createSqlSource(configuration, sqlResult, modelClass);
        return this.addInsertMappedStatement(mapperClass, modelClass, "insertAll", sqlSource, new NoKeyGenerator(), null, null);
    }

    private String prepareFieldSql(TableInfo tableInfo) {
        StringBuilder fieldSql = new StringBuilder();
        fieldSql.append(tableInfo.getKeyColumn()).append(",");
        tableInfo.getFieldList().forEach(x -> fieldSql.append(x.getColumn()).append(","));
        fieldSql.delete(fieldSql.length() - 1, fieldSql.length());
        fieldSql.insert(0, "(");
        fieldSql.append(")");
        return fieldSql.toString();
    }

    private String prepareValuesSqlForMysqlBatch(TableInfo tableInfo) {
        final StringBuilder valueSql = new StringBuilder();
        valueSql.append("<foreach collection=\"list\" item=\"item\" index=\"index\" open=\"(\" separator=\"),(\" close=\")\">");
        valueSql.append("#{item.").append(tableInfo.getKeyProperty()).append("},");
        tableInfo.getFieldList().forEach(x -> valueSql.append("#{item.").append(x.getProperty()).append("},"));
        valueSql.delete(valueSql.length() - 1, valueSql.length());
        valueSql.append("</foreach>");
        return valueSql.toString();
    }
}


 ruoyi-framework/src/main/java/com/ruoyi/framework/config/MybatisPlusConfig.java

@@ -2,14 +2,20 @@

import com.baomidou.mybatisplus.annotation.DbType;
import com.baomidou.mybatisplus.core.handlers.MetaObjectHandler;
import com.baomidou.mybatisplus.core.injector.AbstractMethod;
import com.baomidou.mybatisplus.core.injector.DefaultSqlInjector;
import com.baomidou.mybatisplus.core.injector.ISqlInjector;
import com.baomidou.mybatisplus.extension.plugins.MybatisPlusInterceptor;
import com.baomidou.mybatisplus.extension.plugins.inner.OptimisticLockerInnerInterceptor;
import com.baomidou.mybatisplus.extension.plugins.inner.PaginationInnerInterceptor;
import com.ruoyi.common.core.mybatisplus.methods.InsertAll;
import com.ruoyi.framework.mybatisplus.CreateAndUpdateMetaObjectHandler;
import org.mybatis.spring.annotation.MapperScan;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.transaction.annotation.EnableTransactionManagement;

import java.util.List;

/**
 * mybatis-plus配置类
@@ -94,10 +100,17 @@
     * sql注入器配置
     * https://baomidou.com/guide/sql-injector.html
     */
//    @Bean
//    public ISqlInjector sqlInjector() {
//        return new DefaultSqlInjector();
//    }
    @Bean
    public ISqlInjector sqlInjector() {
        return new DefaultSqlInjector() {
            @Override
            public List<AbstractMethod> getMethodList(Class<?> mapperClass) {
                List<AbstractMethod> methodList = super.getMethodList(mapperClass);
                methodList.add(new InsertAll());
                return methodList;
            }
        };
    }

    /**
     * TenantLineInnerInterceptor å¤šç§Ÿæˆ·æ’件