Java完成把excel xls中數據轉為可直接拔出數據庫的sql文件。本站提示廣大學習愛好者：（Java完成把excel xls中數據轉為可直接拔出數據庫的sql文件）文章只能為提供參考，不一定能成為您想要的結果。以下是Java完成把excel xls中數據轉為可直接拔出數據庫的sql文件正文
我的一向作風，代碼解釋一切。。
空話不多說了，直接給年夜家貼代碼了，詳細代碼以下所示：
package Tools;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.lang.reflect.Field;
import java.util.ArrayList;
import java.util.List;
import jxl.Sheet;
import jxl.Workbook;
import entity.Student;
public class ConvertXMSToSQL {
/**
* 從xls表格中獲得數據，生成可履行的sql文件，用以拔出數據庫，留意須要引入jxl包！支撐int,Integer,long,Long,String
* ,可自行擴大
*
* @param args
* @throws IllegalArgumentException
* @throws IllegalAccessException
*/
public static void main(String[] args) throws IllegalArgumentException,
IllegalAccessException {
// 獲得表格中一切的數據
List<Student> listExcel = getAllByExcel("C:\\Users\\xxx\\Desktop\\zzz.xls");
try {
String path = "C:\\Users\\xxx\\Desktop\\convert.sql";// 文件保留途徑、名字
File file = new File(path);
BufferedWriter ow = new BufferedWriter(new FileWriter(file));
for (Student c : listExcel) {
String sql = "insert into cfg_avatar values (" + outSql(c)
+ ")";
ow.write(sql + ";" + "\n");
}// 寫入內容
ow.close();
} catch (IOException e) {
e.printStackTrace();
}
}
/**
* 從xls中獲得數據
*
* @param file
* @return
*/
public static List<Student> getAllByExcel(String file) {
List<Student> list = new ArrayList<Student>();
try {
Workbook rwb = Workbook.getWorkbook(new File(file));
Sheet rs = rwb.getSheet(0);
int clos = rs.getColumns();// 獲得一切的列
int rows = rs.getRows();// 獲得一切的行
// 樣例中，數據從第三列第一行開端
for (int i = 2; i < rows; i++) {
// 獲得的每行的一切數據存入listString
List<String> listString = new ArrayList<String>();
for (int j = 0; j < clos; j++) {
String str = rs.getCell(j, i).getContents();
listString.add(str);
}
Student Student = (Student) newObject(new Student(), listString);
list.add(Student);
}
} catch (Exception e) {
e.printStackTrace();
}
return list;
}
/**
* 應用反射設置數據。此例中可設置的數據類型無限，沒有的請本身添加！！！
*
* @param obj
* @param list
* @return
* @throws IllegalArgumentException
* @throws IllegalAccessException
*/
public static Object newObject(Object obj, List<String> list)
throws IllegalArgumentException, IllegalAccessException {
Field[] field = obj.getClass().getDeclaredFields();
for (int i = 0; i < field.length; i++) {
Field f = field[i];
f.setAccessible(true);
if (f.getType() == String.class) {
f.set(obj, list.get(i));
}
if (f.getType() == Integer.class) {
f.set(obj, Integer.parseInt(list.get(i)));
}
if (f.getType() == int.class) {
f.set(obj, Integer.parseInt(list.get(i)));
}
if (f.getType() == Long.class) {
f.set(obj, Long.parseLong(list.get(i)));
}
if (f.getType() == long.class) {
f.set(obj, Long.parseLong(list.get(i)));
}
}
return obj;
}
/**
*
* @param obj
* @return
* @throws IllegalArgumentException
* @throws IllegalAccessException
*/
public static String outSql(Object obj) throws IllegalArgumentException,
IllegalAccessException {
StringBuffer buffer = new StringBuffer();
Field[] field = obj.getClass().getDeclaredFields();
for (int i = 0; i < field.length; i++) {
Field f = field[i];
f.setAccessible(true);
if (f.getType() == String.class) {
buffer.append("'");
}
buffer.append(f.get(obj));
if (f.getType() == String.class) {
buffer.append("'");
}
if (i < field.length - 1) {
buffer.append(",");
}
}
return buffer.toString();
}
}
有關Java完成把excel xls中數據轉為可直接拔出數據庫的sql文件的常識，小編就給年夜家引見這麼多，願望對年夜家有所贊助！
