SSM架構實現導入Excel文件功能

jsp頁面:

    <form enctype="multipart/form-data" id="makes">
        <span class="btn btn-success fileinput-button">
            <span>選擇文件</span>
            <input type="file" id="excelFile" name="excelFile">
        </span>
        <span class="btn btn-success fileinput-button" style="margin: 8% 50%;">
            <span onclick="importExc()" >導入</span>
        </span>
    </form>
</body>
</html>
<script>
 function importExc() {
     var formData = new FormData();
     //檢驗導入的文件是否爲Excel文件
     var uploadFile = document.getElementById("excelFile").value;
     formData.append("excelFile",$("#excelFile")[0].files[0]);
     formData.append("name",uploadFile);
     if(uploadFile == null || uploadFile == ''){
        layer.msg("請選擇要上傳的Excel文件");
         return false;
     }else{
         var fileExtend = uploadFile.substring(uploadFile.lastIndexOf('.')).toLowerCase();
         if(fileExtend == '.xls'){
         }else{
             layer.msg("文件格式需爲'.xls'格式");
             return false;
         }
     } $.ajax({
         type:"post",
         url:"${APP_PATH}/importExc",
         data:formData,
         // 告訴jQuery不要去處理髮送的數據
         processData : false,
         // 告訴jQuery不要去設置Content-Type請求頭
         contentType : false,
         beforeSend:function(){
             console.log("正在進行，請稍候");
         },
         success:function (data) {
             if(data=="1"){
                 layer.msg("導入成功");
             }else{
                 layer.error("導入失敗");
             }
         }
     })
 }
</script>

Controller層：    

@ResponseBody
@RequestMapping("/importExc")
public String importExc(@RequestParam(value="excelFile",required = false) MultipartFile excelFile) {
    start();
    try {
        String s = encryptService.ajaxUploadExcel(excelFile);
        return s;
    } catch (Exception e) {
        e.printStackTrace();
        success(false);
    }
    end();
    return "0";
}

Service層：

 

public interface EncryptService {
    String ajaxUploadExcel(MultipartFile excelFile);
}

Service實現層：

@Service("encryptService")
public class EncryptServiceImpl implements EncryptService {
    @Autowired
    private EncryptDao encryptDao;
    public String ajaxUploadExcel(MultipartFile file){
       /* MultipartHttpServletRequest multipartRequest = (MultipartHttpServletRequest) request;

        MultipartFile file = multipartRequest.getFile("excelFile");*/
        if(file.isEmpty()){
            try {
                throw new Exception("文件不存在！");
            } catch (Exception e) {
                e.printStackTrace();
            }
        }

        InputStream in =null;
        try {
            in = file.getInputStream();
        } catch (IOException e) {
            e.printStackTrace();
        }

        List<List<Object>> listob = null;
        try {
            listob = new ExcelUtils().getBankListByExcel(in,file.getOriginalFilename());
        } catch (Exception e) {
            e.printStackTrace();
        }
        for (int i = 0; i < listob.size(); i++) {
            /*   List<Object> lo = listob.get(i);
               if (lo.get(i)=="") {
                    continue;
                }*/
            System.out.println(listob.get(i));

        }
        for (int i = 0; i < listob.size(); i++) {
            List<Object> lo = listob.get(i);
            Encrypt vo = new Encrypt();
            Encrypt j = null;

            try {
                j = encryptDao.selectByPrimaryKey(Integer.valueOf(String.valueOf(lo.get(0))));
            } catch (NumberFormatException e) {
                // TODO Auto-generated catch block
                System.out.println("數據庫中無該條數據，新增");

            }
            vo.setId(Integer.valueOf(String.valueOf(lo.get(0))));
            vo.setAppId(String.valueOf(lo.get(1)));
            vo.setAppKey(String.valueOf(lo.get(2)));

            if(j == null)
            {

                encryptDao.insert(vo);
                System.out.println("susscess");
            }
            else
            {
                encryptDao.updateByPrimaryKey(vo);
            }

        }

        return "1";
    }
}

 

Mapper接口：

/**
 * 插入數據
 * */
int insert(Encrypt encrypt);
/**
 * 通過id刪除
 * */
int deleteByPrimaryKey(Integer id);
/**
 * 插入數據
 * */
int insertSelective(Encrypt record);
/**
 * 根據id查詢數據
 * */
Encrypt selectByPrimaryKey(Integer id);
/**
 * 更新數據
 * */
int updateByPrimaryKeySelective(Encrypt record);
/**
 * 更新數據
 * */
int updateByPrimaryKey(Encrypt record);
/**
 * 批量插入
 * */
void insertInfoBatch(List<Encrypt> list);

Mapper.xml映射：

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper
        PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
        "http://mybatis.org/dtd/mybatis-3-mapper.dtd">

<mapper namespace="com.atguigu.cpes.dao.EncryptDao" >
    <resultMap id="BaseResultMap" type="com.atguigu.cpes.bean.Encrypt" >
        <id column="id" property="id" jdbcType="INTEGER" />
        <result column="code" property="code" jdbcType="VARCHAR" />
        <result column="content" property="content" jdbcType="VARCHAR" />
    </resultMap>
    <sql id="Base_Column_List" >
    id, code, content
  </sql>
    <select id="selectByPrimaryKey" resultMap="BaseResultMap" parameterType="java.lang.Integer" >
        select
        <include refid="Base_Column_List" />
        from encrypt
        where id = #{id,jdbcType=INTEGER}
    </select>
    <delete id="deleteByPrimaryKey" parameterType="java.lang.Integer" >
    delete from encrypt
    where id = #{id,jdbcType=INTEGER}
  </delete>
    <insert id="insert" parameterType="com.atguigu.cpes.bean.Encrypt" >
    insert into encrypt (id, code, content)
    values (#{id,jdbcType=INTEGER}, #{code,jdbcType=VARCHAR}, #{content,jdbcType=VARCHAR})
  </insert>
    <insert id="insertSelective" parameterType="com.atguigu.cpes.bean.Encrypt" >
        insert into encrypt
        <trim prefix="(" suffix=")" suffixOverrides="," >
            <if test="id != null" >
                id,
            </if>
            <if test="code!= null" >
                code,
            </if>
            <if test="content!= null" >
                content,
            </if>

        </trim>
        <trim prefix="values (" suffix=")" suffixOverrides="," >
            <if test="id != null" >
                #{id,jdbcType=INTEGER},
            </if>
            <if test="code!= null" >
                #{code,jdbcType=VARCHAR},
            </if>
            <if test="content!= null" >
                #{content,jdbcType=VARCHAR},
            </if>
        </trim>
    </insert>
    <update id="updateByPrimaryKeySelective" parameterType="com.atguigu.cpes.bean.Encrypt" >
        update encrypt
        <set >
            <if test="code!= null" >
                code= #{code,jdbcType=VARCHAR},
            </if>
            <if test="content!= null" >
                content= #{content,jdbcType=VARCHAR},
            </if>
        </set>
        where id = #{id,jdbcType=INTEGER}
    </update>
    <update id="updateByPrimaryKey" parameterType="com.atguigu.cpes.bean.Encrypt" >
    update encrypt
    set username = #{code,jdbcType=VARCHAR},
      password = #{content,jdbcType=VARCHAR}
    where id = #{id,jdbcType=INTEGER}
  </update>


    <insert id="insertInfoBatch" parameterType="java.util.List">
        insert into encrypt (id, code, content)
        values
        <foreach collection="list" item="item" index="index" separator=",">
            (#{id,jdbcType=INTEGER}, #{code,jdbcType=VARCHAR}, #{content,jdbcType=VARCHAR})
        </foreach>
    </insert>
</mapper>

上傳工具類：

import org.apache.poi.hssf.usermodel.HSSFDateUtil;
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 java.io.InputStream;
import java.math.BigDecimal;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;

public class ExcelUtils {
    private final static String excel2003L =".xls";    //2003- 版本的excel
    private final static String excel2007U =".xlsx";   //2007+ 版本的excel

    /**
     * 描述：獲取IO流中的數據，組裝成List<List<Object>>對象
     * @param in,fileName
     * @return
     * @throws
     */
    public  List<List<Object>> getBankListByExcel(InputStream in, String fileName) throws Exception{
        List<List<Object>> list = null;

        //創建Excel工作薄
        Workbook work = this.getWorkbook(in,fileName);
        if(null == work){
            throw new Exception("創建Excel工作薄爲空！");
        }
        Sheet sheet = null;  //頁數
        Row row = null;  //行數
        Cell cell = null;  //列數

        list = new ArrayList<List<Object>>();
        //遍歷Excel中所有的sheet
        for (int i = 0; i < work.getNumberOfSheets(); i++) {
            sheet = work.getSheetAt(i);
            if(sheet==null){continue;}

            //遍歷當前sheet中的所有行
            for (int j = sheet.getFirstRowNum(); j <= sheet.getLastRowNum(); j++) {
                row = sheet.getRow(j);
                if(row==null||row.getFirstCellNum()==j){continue;}

                //遍歷所有的列
                List<Object> li = new ArrayList<Object>();
                for (int y = row.getFirstCellNum(); y < row.getLastCellNum(); y++) {
                    cell = row.getCell(y);
                    li.add(this.getValue(cell));
                }
                list.add(li);
            }
        }

        return list;

    }

    /**
     * 描述：根據文件後綴，自適應上傳文件的版本
     * @param inStr,fileName
     * @return
     * @throws Exception
     */
    public Workbook getWorkbook(InputStream inStr, String fileName) throws Exception{
        Workbook wb = null;
        String fileType = fileName.substring(fileName.lastIndexOf("."));
        if(excel2003L.equals(fileType)){
            wb = new HSSFWorkbook(inStr);  //2003-
        }else if(excel2007U.equals(fileType)){
            wb = new HSSFWorkbook(inStr);  //2007+
        }else{
            throw new Exception("解析的文件格式有誤！");
        }
        return wb;
    }

    /**
     * 描述：對錶格中數值進行格式化
     * @param cell
     * @return
     */
    //解決excel類型問題，獲得數值
    public  String getValue(Cell cell) {
        String value = "";
        if(null==cell){
            return value;
        }
        switch (cell.getCellType()) {
            //數值型
            case Cell.CELL_TYPE_NUMERIC:
                if (HSSFDateUtil.isCellDateFormatted(cell)) {
                    //如果是date類型則 ，獲取該cell的date值
                    Date date = HSSFDateUtil.getJavaDate(cell.getNumericCellValue());
                    SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd");
                    value = format.format(date);;
                }else {// 純數字
                    BigDecimal big=new BigDecimal(cell.getNumericCellValue());
                    value = big.toString();
                    //解決1234.0  去掉後面的.0
                    if(null!=value&&!"".equals(value.trim())){
                        String[] item = value.split("[.]");
                        if(1<item.length&&"0".equals(item[1])){
                            value=item[0];
                        }
                    }
                }
                break;
            //字符串類型
            case Cell.CELL_TYPE_STRING:
                value = cell.getStringCellValue().toString();
                break;
            // 公式類型
            case Cell.CELL_TYPE_FORMULA:
                //讀公式計算值
                value = String.valueOf(cell.getNumericCellValue());
                if (value.equals("NaN")) {// 如果獲取的數據值爲非法值,則轉換爲獲取字符串
                    value = cell.getStringCellValue().toString();
                }
                break;
            // 布爾類型
            case Cell.CELL_TYPE_BOOLEAN:
                value = " "+ cell.getBooleanCellValue();
                break;
            default:
                value = cell.getStringCellValue().toString();
        }
        if("null".endsWith(value.trim())){
            value="";
        }
        return value;
    }
}