Java 实现后缀xls文件读取详解编程语言

Java 实现后缀xls文件读取

一、开发环境

  poi采用的3.9版本 + JDK1.6 + Myeclipse

二,JAR包

Java 实现后缀xls文件读取详解编程语言

三、实现代码

实体类:UserRoleBean

package nc.xyzq.uuib.bean;   
 
/**  
 * ClassName:UserRoleBean 
 * @author   lizm   
 * @since    JDK 1.6  
 *        
 */ 
public class UserRoleBean { 
     
    private String userCode ; 
    private String roleid; 
    private String isflag; 
     
    public String getUserCode() { 
        return userCode; 
    } 
    public void setUserCode(String userCode) { 
        this.userCode = userCode; 
    } 
    public String getRoleid() { 
        return roleid; 
    } 
    public void setRoleid(String roleid) { 
        this.roleid = roleid; 
    } 
    public String getIsflag() { 
        return isflag; 
    } 
    public void setIsflag(String isflag) { 
        this.isflag = isflag; 
    } 
     
} 
 

实现读取xls信息类:Client

package nc.xyzq.client; 
import java.io.File; 
import java.io.FileInputStream; 
import java.util.ArrayList; 
import java.util.List; 
import java.util.logging.Logger; 
import nc.xyzq.pub.Pub; 
import nc.xyzq.uuib.service.impl.UserRoleBean; 
import org.apache.poi.hssf.usermodel.HSSFWorkbook; 
import org.apache.poi.ss.usermodel.Cell; 
import org.apache.poi.ss.usermodel.Row; 
import org.apache.poi.ss.usermodel.Sheet; 
import org.apache.poi.ss.usermodel.Workbook; 
import org.apache.poi.xssf.usermodel.XSSFWorkbook; 
/**  
* ClassName:Client  
* Function: TODO 
* Reason:   TODO  
* Date:     2018年11月20日 下午15:59:31  
* @author   lizm   
* @since    JDK 1.6  
*        
*/ 
public class Client { 
private static final Logger logger = (Logger) Logger.getLogger(Client.class.getName()); 
private List<UserRoleBean> getInfoFromExcle(){ 
List<UserRoleBean> list = new ArrayList(); 
//excel文件路径 
String excelPath = Pub.getPropertiesValue("relationship", "path");//读取配置文件,例如 D://data/relationship.xls 
try { 
//String encoding = "GBK"; 
File excel = new File(excelPath); 
if (excel.isFile() && excel.exists()) {   //判断文件是否存在 
String[] split = excel.getName().split("//.");  //.是特殊字符,需要转义!!!!! 
                Workbook wb; 
//根据文件后缀(xls/xlsx)进行判断 
if ( "xls".equals(split[1])){ 
FileInputStream fis = new FileInputStream(excel);   //文件流对象 
wb = new HSSFWorkbook(fis); 
} 
/** 
else if ("xlsx".equals(split[1])){ 
FileInputStream  fis = new FileInputStream(excel);   
wb = new XSSFWorkbook(fis); 
} 
*/ 
else { 
//System.out.println("文件类型错误!"); 
logger.info("文件类型错误!"); 
return list; 
} 
//开始解析 
Sheet sheet = wb.getSheetAt(0);     //读取sheet 0 
int firstRowIndex = sheet.getFirstRowNum()+1;   //第一行是列名,所以不读 
int lastRowIndex = sheet.getLastRowNum(); 
//System.out.println("firstRowIndex: "+firstRowIndex); 
logger.info("firstRowIndex: "+firstRowIndex); 
//System.out.println("lastRowIndex: "+lastRowIndex); 
logger.info("lastRowIndex: "+lastRowIndex); 
//System.out.println("执行进行中......"); 
logger.info("执行进行中......"); 
//遍历行 
for(int rIndex = firstRowIndex; rIndex <= lastRowIndex; rIndex++) {    
//System.out.println("rIndex: " + rIndex); 
Row row = sheet.getRow(rIndex); 
if (row != null) { 
//行中第一个值所在的列序号 
int firstCellIndex = row.getFirstCellNum(); 
//行中最后一个值所在的列序号 
int lastCellIndex = row.getLastCellNum(); 
UserRoleBean userRoleBean = new UserRoleBean(); 
//遍历列 
//for (int cIndex = firstCellIndex; cIndex < lastCellIndex; cIndex++) {  
for (int cIndex = 0; cIndex < 3; cIndex++) { 
Cell cell = row.getCell(cIndex); 
if (cell != null) { 
//将表格内容强制转换为字符型 
                                cell.setCellType(Cell.CELL_TYPE_STRING); 
//System.out.println(cell.toString()); 
if(cIndex == 0){ 
userRoleBean.setUserCode(cell.toString()); 
}else if(cIndex == 1){ 
userRoleBean.setRoleid(cell.toString()); 
}else if(cIndex == 2){ 
userRoleBean.setIsflag(cell.toString()); 
} 
} 
} 
if(!("".equals(userRoleBean.getUserCode())) && !("".equals(userRoleBean.getRoleid()))){ 
//System.out.println(">>>0000000>>:"+userRoleBean.getRoleid()); 
                            list.add(userRoleBean); 
} 
} 
} 
} else { 
//System.out.println("找不到指定的文件"); 
logger.info("找不到指定的文件"); 
} 
} catch (Exception e) { 
e.printStackTrace(); 
} 
return list; 
} 
public static void main(String[] args) { 
List<UserRoleBean> list = new ArrayList(); 
Client client = new Client(); 
list = client.getInfoFromExcle(); 
} 
}

 

原创文章,作者:ItWorker,如若转载,请注明出处:https://blog.ytso.com/16685.html

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