java excel jxls_java通过jxls框架实现导入导出excel文件实例
//使用jxls報表生成工具，把java實體類導出生成 Excel文件或導入 Excel 插入數據庫
//讀取
public class ReadExcel {
private final static String xmlConfig="student.xml";
public List read(){
InputStream inputXML = new BufferedInputStream(ReadExcel.class.getResourceAsStream(xmlConfig));
XLSReader mainReader;
String path=ReadExcel.class.getResource("/").getPath();
path=path.substring(1,path.indexOf("/WebRoot")+1)+"WebRoot/Excel/stu.xls";
try {
mainReader = ReaderBuilder.buildFromXML(inputXML );
InputStream inputXLS = new BufferedInputStream(new FileInputStream(path));
Student stu=new Student();
List students = new ArrayList();
Map beans = new HashMap();
beans.put("stu", stu);
beans.put("students", students);
XLSReadStatus readStatus = mainReader.read(inputXLS, beans);
return students;
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (SAXException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return null;
}
public static void main(String[] args) {
ReadExcel re=new ReadExcel();
List list=re.read();
System.out.println("ID\t name\t subject\t score");
for(Student stu:list){
System.out.println(stu.getIdname()+"\t "+stu.getName()+"\t "+stu.getSubject()+"\t "+stu.getScorename());
}
}
}
//寫入
public class WriteExcel {
public static void write(List list){
List students = new ArrayList();
Map beans = new HashMap();
beans.put("students", list);
XLSTransformer transformer = new XLSTransformer();
String path=ReadExcel.class.getResource("/").getPath();
path=path.substring(1,path.indexOf("/WebRoot")+1)+"WebRoot/Excel/";
try {
transformer.transformXLS(path+"/student.xls", beans, path+"/stus.xls");
} catch (ParsePropertyException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
public List getStudetns(){
List list=new ArrayList();
Student stu=null;
PreparedStatement pre=null;
ResultSet re=null;
try{
pre=DBConector.getCon().prepareStatement("select * from student");
re=pre.executeQuery();
while(re.next()){
stu=new Student();
stu.setId(re.getLong(1));
stu.setName(re.getString(2));
stu.setSubject(re.getString(3));
stu.setScore(re.getLong(4));
list.add(stu);
}
}catch(Exception e){
e.printStackTrace();
}finally{
try{
if(re!=null)
re.close();
if(pre!=null)
pre.close();
}catch(Exception e){
}
}
return list;
}
public static void main(String[] args) {
WriteExcel w=new WriteExcel();
w.write(w.getStudetns());
}
}//sql
create table STUDENT
(
ID NUMBER(8) not null primary key,
NAME VARCHAR2(50) not null,
SUBJECT VARCHAR2(50) not null,
SCORE NUMBER(8)
)
Excel模板文件：
對應Excel文件
總結
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