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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 {
/**
* 从xls表格中获取数据,生成可执行的sql文件,用以插入数据库,注意需要引入jxl包!支持int,Integer,long,Long,String
* ,可自行扩展
*
* @param args
* @throws IllegalArgumentException
* @throws IllegalAccessException
*/
public
static
void
main(String[] args)
throws
IllegalArgumentException,
IllegalAccessException {
// 得到表格中所有的数据
List<Student> listExcel = getAllByExcel(
"C:\\Users\\xxx\\Desktop\\zzz.xls"
);
try
{
String path =
"C:\\Users\\xxx\\Desktop\\convert.sql"
;
// 文件保存路径、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"
);
}
// 写入内容
ow.close();
}
catch
(IOException e) {
e.printStackTrace();
}
}
/**
* 从xls中获取数据
*
* @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();
// 得到所有的列
int
rows = rs.getRows();
// 得到所有的行
// 样例中,数据从第三列第一行开始
for
(
int
i =
2
; i < rows; i++) {
// 取得的每一行的所有数据存入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;
}
/**
* 使用反射设置数据。此例中可设置的数据类型有限,没有的请自己添加!!!
*
* @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();
}
}
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原文地址:http://www.cnblogs.com/k-iss/p/5852228.html