Spring boot + Mysql - Load data【保存大量数据】

SHOW GLOBAL VARIABLES LIKE ‘local_infile’;

set global local_infile=1;

springboot-mysql配置：&allowLoadLocalInfile=true

java代码：
private void saveData(List list) {
       final File loadDataFile = new File(IdUtil.fastSimpleUUID() + "-temp-create.txt");
       final FileWriter fileWriter = FileWriter.create(loadDataFile);
       final StringBuilder builder = new StringBuilder();
       balanceList.forEach(balance -> {
       ReportProfitCostVO profitCostVO = reportConvert.toReportProfitCostVo(balance);
            // 通过反射获取类的属性字段【ps:此处实体属性修饰符为 “public” 】
            final Class clazz = ReportProfitCostVO.class;
            final Field[] fields = clazz.getFields();
            for (Field field : fields) {
                        try {
                            final Object value = field.get(profitCostVO);
                            if (value != null) {
                                builder.append(value);
                            }
                            builder.append("||");
                        } catch (IllegalAccessException e) {
                            e.printStackTrace();
                        }
             }
             if (builder.length() > 0) {
                    builder.deleteCharAt(builder.length() - 1);
                    builder.deleteCharAt(builder.length() - 1);
             }
             builder.append("n");
             fileWriter.append(builder.toString());
             builder.setLength(0);
         });
         frsReportProfitDetailTempService.saveBatchByLoadData(loadDataFile);
         loadDataFile.deleteOnExit();
    }
    
 Mapper层:
 void insertBatchByLoadData(@Param("path") String absolutePath);
 
 sql:
 
        LOAD DATA LOCAL INFILE #{path,jdbcType=VARCHAR} INTO TABLE 表名
                CHARACTER SET utf8
                FIELDS TERMINATED BY '||'
                LINES TERMINATED BY 'n'
                (
             		字段,
             		字段,
             		...
                )