scala读取csv文件批量插入数据库

import java.io.FileWriter
import scala.io.Source/** * 通过CSV文件，及其预处理的字段类型字符串，输出insert语句 */
class csv2InsertSQLServer {/** * @param CLASS_PATH 输入/输出路径 
* @param inFilename 输入文件名 
* @param tableName 表名 
* @param headType 表字段的类型，以竖线（|）分割 */def mkSQL(CLASS_PATH: String, inFilename: String, tableName: String, headType: String): Unit = {//输入/输出文件val IN_FILE_NAME = CLASS_PATH + "\\inData\\" + inFilenameval OUT_FILE_NAME = CLASS_PATH + "\\outData\\" + inFilename //SQL字符串val inSqlString: StringBuilder = new StringBuilder //读取文件（CSV）val sourceFile = Source.fromFile(IN_FILE_NAME, "utf-8") //解析字段类型val headTypeList: Array[String] = headType.split("\\|")//拼装SQLinSqlString.append("insert into " + tableName + " values ")for (line <- sourceFile.getLines) {inSqlString.append("(")val lineList: Array[String] = line.split(",")val len = lineList.length for (i <- 0 to len - 1) {//null值处理if (lineList(i) == "\\N" || lineList(i) == "Null" || lineList(i) == "\\NuN") inSqlString.append("null,")//字符类型的字段拼装时候加引号else if (headTypeList(i).contains("varchar") || headTypeList(i).contains("string")) inSqlString.append("\"" + lineList(i) + "\",") else inSqlString.append(lineList(i) + ",")}inSqlString.deleteCharAt(inSqlString.length - 1)inSqlString.append("),\n")}val outFileWriter = new FileWriter(OUT_FILE_NAME)outFileWriter.write(inSqlString.deleteCharAt(inSqlString.length - 1).toString() + "\n")println(inSqlString.deleteCharAt(inSqlString.length - 1))outFileWriter.close()sourceFile.close()}
}