1、新增jar包依賴

<dependency>
         <groupId>commons-fileupload</groupId>
         <artifactId>commons-fileupload</artifactId>
         <version>1.3.3</version>
     </dependency>

2、配置bean

<!-- 要上傳檔案，就要引入這個bean -->
    <bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver"
          p:defaultEncoding="UTF-8" p:maxUploadSize="104857600">
    </bean>

3、批量匯入按鈕

            <button type="button" id="importButton" class="btn btn-success" onclick="importDialog()" style="width:150px">批量匯入
            </button>

      對應js：

//匯入資料對話方塊
function importDialog() {
    $("#file").val("");
    $("#uploadDiv").dialog({
        resizable: false,
        height: 280,
        width: 480,
        modal: true
    });
}

彈出對應的對話方塊：

<!--批量匯入-->
<div id="uploadDiv" class="showBox" style="margin-left:5px;margin-top:5px;display:none" title="批量匯入介面">
<form id="inputForm1" name="inputForm1" action="/psadmin/uploadCPBrand.do" method="post" enctype="multipart/form-data" onsubmit="return false">
<table width="100%"  class="up_table">
<tr>
    <td width="30px">路徑</td>
<td align=left><input class="form-control" type="file" id="file" name="file"></input></td>
<td ><button class="btn btn-info" onclick="uploadCPBrand()"><span><span>匯入</span></span></button></td>
</tr>
</table>
</form>
<br>
<!--<HR align=left width=100% color=lightBlue SIZE=1>-->
<table width=100% cellspacing=0 cellpadding=0 border=1px class="up_table">
<tr>
    <th width="30px"></th>
<th >母品牌</th>
<th >子品牌</th>
</tr>
<tr onmouseover="this.style.backgroundColor='#F0F8FF'" onmouseout="this.style.backgroundColor=''">
    <td align="center">1</td>
<td>中興</td>
<td>努比亞</td>
</tr>
<tr onmouseover="this.style.backgroundColor='#F0F8FF'" onmouseout="this.style.backgroundColor=''">
     <td  align="center">2</td>
<td>瀘州老窖</td>
<td>老瀘州,瀘州原漿酒</td>
</tr>
</table>
<br>
<div class="up_info_t">提示</div>
<div class="up_info_c">
    1、上傳檔案必須為csv格式。
    <br>2、上傳檔案只包含母品牌,子品牌,子母品牌以Tab鍵分隔，例如：中興努比亞。
</div>
</div>

匯入按鈕對應js：

function uploadCPBrand() {
    var files = $("#file").val();
    if (files == null || files == "") {
        alert("請選擇檔案");
        return false;
    } else if (files.substr(files.length - 4, 4).toLowerCase().match("(^.csv)") == null) {
        alert("請選擇.csv格式檔案");
        return false;
    } else {
        if (confirm('確定上傳？')) {
            $("#inputForm1")[0].submit();


        }
    }
}

注意：如果要將引數帶入URL，請用下面的程式碼：

var url = "/ps-admin-nimitz/system/uploadAccount.do?roleId="+roleId+"&&role="+role;
            $("#inputForm1").attr("action", url);
            $("#inputForm1")[0].submit();

4、後臺程式碼：

controller類中方法：

@Controller
public class ChildAndParentBrandMining {
private final Logger log = SearchLogger.getLogger(ChildAndParentBrandMining.class);
@Autowired
    private CPBrandService cpbrandService;
@Autowired
    private PsInfoService psInfoService;
@Autowired
private ShowLogService showLogService;

private int seg = 10;// 預設一頁的記錄數    

    // 批量上傳
    @RequestMapping("/uploadCPBrand.do")
    public String uploadCPBrand(@RequestParam MultipartFile file, HttpServletRequest request, ModelMap model/*, Authentication authentication*/) throws Exception {
    String userId = request.getRemoteUser();
    BufferedReader br = new BufferedReader(new InputStreamReader(file.getInputStream(), "UTF-8"));
        String line;
        List<CPBrandBean> data = new LinkedList<CPBrandBean>();
        while( (line = br.readLine()) != null ){
        try{
        String[] token = line.split("\t");
        if( token == null || token.length != 2 )continue;
        CPBrandBean brandBean = new CPBrandBean();
            brandBean.setParentBrand(token[0]);
            brandBean.setChildBrand(token[1]);
            brandBean.setSource("本地");
        data.add(brandBean);
        }catch(Exception ex){
        log.error("上傳檔案有髒資料",ex);
        }
        }
        int count = cpbrandService.addBatch(data);
        if(count>0){
        String behavior = "本地匯入子母品牌資料";
           log.info("使用者"+userId+behavior);
           showLogService.addLog(userId, "子母品牌挖掘", behavior);
        }
        IOUtils.closeQuietly(br);
return "redirect:/psadmin/CPBrandList.do";//必須用重定向，不能直接用childAndParentBrandWeb方法，否則URL不會重定向
    }

        /**
   * 子母品牌挖掘
   **/
@RequestMapping("/CPBrandList.do")
public String childAndParentBrandWeb(ModelMap modelMap, HttpServletRequest request, @RequestParam(required = false) String keyword,
             @RequestParam(required = false) String page) {
int totalpages;
String newKeyword = keyword == null ? "" : keyword.trim();
     String page1 = page == null ? "1" : page.trim();
     int pages = Integer.parseInt(page1);
     int maxCount = cpbrandService.getTotalCount(newKeyword.toLowerCase());
     if (maxCount % seg == 0) {
         totalpages = maxCount / seg;
     } else {
         totalpages = maxCount / seg + 1;
     }
     List<CPBrandBean> CPBrandBeanList = new ArrayList<CPBrandBean>();
     if (totalpages == 0) {
         pages = 0;
     } else {
         if (pages > totalpages) {
             pages = totalpages;
         }
         int start = (pages - 1) * seg + 1;
         CPBrandBeanList = cpbrandService
                    .getQueryResult(newKeyword.toLowerCase(), start, -1);
         modelMap.put("CPBrandBeanList", CPBrandBeanList);
     }
     modelMap.put("CPBrandBeanList", CPBrandBeanList);
     modelMap.put("newKeyword", newKeyword);
     modelMap.put("pages", totalpages);
     modelMap.put("currentpage", pages);
psInfoService.baseInfo(request, modelMap);
modelMap.put("component", "child_parent_brand");
     return "/admin/index.ftl";
}

service類：

package com.suning.web.service;


import java.util.List;


import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;


import com.suning.web.bean.CPBrandBean;
import com.suning.web.dao.CPBrandDao;


@Service
public class CPBrandService {
@Autowired
    private CPBrandDao cpbrandDao;
// 返回查詢結果個數
    public int getTotalCount(String newKeyword) {
        return cpbrandDao.getTotalCount(newKeyword);
    }
    // 查詢
    public List<CPBrandBean> getQueryResult(String newKeyword, int start, int segment) {
        return cpbrandDao.getQueryResult(newKeyword, start, segment);
    }
    //修改
    public boolean brandUpdate(String parentBrand, String newChildBrand, String source) {
        return cpbrandDao.brandUpdate(parentBrand, newChildBrand, source);
    } 
    //刪除任務對映
    public boolean brandDelete(String parentBrand) {
        return cpbrandDao.brandDelete(parentBrand.trim());
    }
    //匯入子母品牌資料
    public int addBatch(List<CPBrandBean> data){
    return cpbrandDao.addBatch(data);
    }
}

dao類：

package com.suning.web.dao;


import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.List;


import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.jdbc.core.BatchPreparedStatementSetter;
import org.springframework.jdbc.core.JdbcTemplate;
import org.springframework.jdbc.core.RowMapper;
import org.springframework.stereotype.Repository;


import com.suning.web.bean.CPBrandBean;


@Repository
public class CPBrandDao {
private int seg = 10;
@Autowired
    private JdbcTemplate jdbcTemplate;

    public int addBatch(final List<CPBrandBean> data){
    String sql = "INSERT INTO ps_child_parent_brand(parent_brand,child_brand,source) VALUES(?,?,?) ON DUPLICATE KEY UPDATE child_brand=?,source=?";
    int[] res = jdbcTemplate.batchUpdate(sql, new BatchPreparedStatementSetter(){


@Override
public void setValues(PreparedStatement ps, int i)
throws SQLException {
ps.setString(1, data.get(i).getParentBrand());
ps.setString(2, data.get(i).getChildBrand());
ps.setString(3, data.get(i).getSource());
ps.setString(4, data.get(i).getChildBrand());//更新的資料
ps.setString(5, data.get(i).getSource());//更新的資料
}


@Override
public int getBatchSize() {
return data.size();
}
    
    });
    return res[0];
    }
}

對應的資料表設計：

CREATE TABLE `ps_child_parent_brand` (
  `parent_brand` varchar(100) NOT NULL DEFAULT '' COMMENT '母品牌',
  `child_brand` varchar(100) DEFAULT NULL COMMENT '子品牌',
  `source` varchar(100) DEFAULT 'HIVE' COMMENT '資料來源',
  PRIMARY KEY (`parent_brand`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8 COMMENT='子母品牌表';