Java实现导入Excel文件

一.配置文件名称、路径、内容：

 <bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
        <property name="defaultEncoding" value="utf-8"></property>
        <property name="maxUploadSize" value="104857600"></property><!-- 最大上传文件大小：100M -->
        <property name="maxInMemorySize" value="10240"></property>
    </bean>

二.controller

 @RequestMapping(value = "/importAccountManager")
    @ResponseBody
    public ModelAndView importAccountManager(HttpServletRequest request, HttpServletResponse response,
            @RequestParam("file") CommonsMultipartFile file) {
        ModelAndView mav = new ModelAndView(new MappingJackson2JsonView());
        try (InputStream inputXls = file.getInputStream();
                InputStream inputXML = new BufferedInputStream(getClass().getClassLoader().getResourceAsStream(ACCOUNT_TEMPLATE_PATH));) {
            XLSReader mainReader = ReaderBuilder.buildFromXML(inputXML);
            List<AccountManagerModel> dataList = new ArrayList<>();
            Map<String, Object> params = new HashMap<>();
            params.put("dataList", dataList);
            mainReader.read(inputXls, params);
            String message = accountManagerService.importAccountManager(dataList);
            if(StringUtils.isNotBlank(message)) {
                mav.addObject("success", false);
            } else {
                mav.addObject("success", true);
            }
            mav.addObject("message", message);
        } catch (Throwable e) {
            LOGGER.error("importAccountManager causes inner exception:", e);
            mav.addObject("success", false);
            mav.addObject("message", e.getMessage());
        }
        return mav;
    }

三.service

//serviceImpl
  @Override
    public String importAccountManager(List<AccountManagerModel> accountList) throws Exception {
        List<OrgModel> orgList = orgMapper.queryOrg();
        String message = validate(accountList, orgList);
        if(message == null) {
            for(AccountManagerModel account : accountList) {
                String consNo = account.getConsNo();
                AccountManagerModel oldAccount = accountManagerMapper.queryByConsNo(consNo);
                if(oldAccount == null) {
                    insertAccountManager(account);
                } else {
                    editAccountManager(account, oldAccount);
                }
            }
        }
        return message;
    }
//interface
/**
     * 导入客户数据
     *
     * @param accountList
     * @return
     * @throws Exception
     */
    public String importAccountManager(List<AccountManagerModel> accountList) throws Exception;

四.mapper

//interface
 /**
     * 通过客户号查询企业
     *
     * @param consNo
     * @return
     * @throws throws Exception
     */
    public AccountManagerModel queryByConsNo(String consNo) throws Exception;
//mapper映射xml

<select id="queryByConsNo" parameterType="java.lang.String" resultMap="AccountManagerResultMap">
        select
            a.cons_id,
            a.cons_no,
            a.cons_name,
            a.cons_address,
            a.legal_person,
            a.legal_person_phone,
            a.bill_person,
            a.bill_person_phone,
            a.electric_person,
            a.electric_person_phone,
            a.entrusted_person,
            a.entrusted_person_phone,
            a.cons_state,
            a.org_no,
            b.org_name
       from be_cons_info a, o_org b
      where a.org_no = b.org_no
        and a.cons_no = #{consNo}
    </select>

五.Html

<div class="tool_wrapper">
        <button class="ui-btn ui-btn-primary" onclick="addAccountManager();">新增</button>
        <button class="ui-btn ui-btn-primary left20" onclick="editAccountManager();">修改</button>
        <!-- <button class="ui-btn ui-btn-primary left20" onclick="cancelAccountManager();">注销</button> -->
        <button class="ui-btn ui-btn-primary left20 fileinput-button">
            <span>导入Excel</span>
            <input id="fileupload" type="file" name="file" accept="application/vnd.ms-excel">
        </button>
        <button class="ui-btn ui-btn-primary left20" onclick="exportXls()">导出Excel</button>
        <button class="ui-btn ui-btn-primary left20" onclick="downloadXlsTemplate()">下载模板</button>
    </div>

六.js

function bindFileUploadEvent() {
    $('#fileupload').fileupload({
        url: basePath + 'accountManager/importAccountManager',
        type: 'post',
        dataType: 'json',
        beforeSend: function(xhr){
            xhr.setRequestHeader(header, token);
        },
        send: function(e, data) {
            var file = data.files[0];
            var fileName = file.name;
            var fileSize = file.size;
            var errorMsg = "请选择Excel文件！";
            var pass = validateFileName(fileName, ".xls");
            if(pass && fileSize >= 10485760) {
                pass = false;
                errorMsg = "选择的Excel文件须小于10M！";
            }
            if(!pass) {
                $('#fileupload').val('');
                errorDialog(errorMsg);
            } else {
                if(parent.progress) {
                    parent.progress.show();
                }
            }
            return pass;
        },
        done: function(e, data) {
            var result = data.result;
            if(result.success) {
                queryAccountManager();
                succDialog("客户数据导入成功！");
            } else {
                errorDialog(result.message);
            }
        },
        fail: function(e, data) {
            if(data.textStatus != null) {
                errorDialog("系统发生故障，请联系系统管理员或稍后重试！");
            }
        },
        always: function(e, data) {
            if(parent.progress) {
                parent.progress.hide();
            }
        }
    });
}