用java实现从文本文件批量导入数据的方法
2》数据采集类DataGather.java
package test;
import java.io.RandomAccessFile;
import java.io.UnsupportedEncodingException;
public class DataGather {
private static final String path = "src/resource/test";
public static final String openFileStyle = "r";
public static final String fieldLimitChar = ",";
public static final int fieldAllCount = 9;
private int count;
private String FltNum;
private String FltLine;
private String FltDate;
private String PsgName;
private String PsgType;
private String PsgSex;
private String PsgCab;
private String PsgSeatNo;
private String PsgInfo;
/*
* 功能:解析文本文件
*/
public void loadFile() {
try {
RandomAccessFile raf = new RandomAccessFile(path, openFileStyle);
String line_record = raf.readLine();
while (line_record != null) {
// 解析每一条记录
parseRecord(line_record);
line_record = raf.readLine();
}
System.out.println("共有合法的记录" + count + "条");
} catch (Exception e) {
e.printStackTrace();
}
}
/*
* 功能:具体解析每一条记录,这里可以增加很多对记录的解析判断条件,如是否为字母、
* 数字、email等。
*/
private void parseRecord(String line_record) throws Exception {
//拆分记录
String[] fields = line_record.split(fieldLimitChar);
if (fields.length == fieldAllCount) {
FltNum = tranStr(fields[0]);
FltLine = tranStr(fields[1]);
FltDate = tranStr(fields[2]);
PsgName = tranStr(fields[3]);
PsgType = tranStr(fields[4]);
PsgSex = tranStr(fields[5]);
PsgCab = tranStr(fields[6]);
PsgSeatNo = tranStr(fields[7]);
PsgInfo = tranStr(fields[8]);
System.out.println(FltNum + " " + FltLine + " " + FltDate + " "
+ PsgName + " " + PsgType + " " + PsgSex + " " + PsgCab
+ " " + PsgSeatNo + " " + PsgInfo);
InsertDB db = new InsertDB();
db.insertDB(FltNum, FltLine, FltDate, PsgName, PsgType, PsgSex,
PsgCab, PsgSeatNo, PsgInfo);
count++;
}
}
private String tranStr(String oldstr) {
String newstr = "";
try {
newstr = new String(oldstr.getBytes("ISO-8859-1"), "GBK");
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
}
return newstr;
}
}
3》测试类Test.java
package test;
public class Test {
public static void main(String[] args) {
try {
DataGather gather = new DataGather ();
gather.loadFile();
} catch (Exception e) {
e.printStackTrace();
}
}
}