ssm框架之将数据库的数据导入导出为excel文件

2021-11-17 23:53:57

在这里首先我要将自己遇到的各种问题，以及需求记录下来，做一个备忘，便于以后查看：

需求：主要实现两个功能，将oracle数据库里的数据导出为excel，同时需要将excel表格的数据导入到数据库

环境：springmvc + spring + mybatis + jdk1.7 + poi3.8 + easyui + oracle

在开始的时候，我就各种找ｊａｒ包搭建环境，搭建环境时候所有的ｊａｒ包都没有，只能去各种找，去下载，话不多说，直接上ｊａｒ包，

然后就是各种配置文件，将配置文件现在直接贴出来：

《 applicationContext-dao.xml 》：

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:context="http://www.springframework.org/schema/context" xmlns:p="http://www.springframework.org/schema/p"
xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.2.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.2.xsd
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.2.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.2.xsd
http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-4.2.xsd">

<context:property-placeholder location="classpath:db.properties" />

<bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource">

<property name="driverClassName" value="${jdbc.driver}" />

<property name="url" value="${jdbc.url}" />

<property name="username" value="${jdbc.username}" />

<property name="password" value="${jdbc.password}" />
</bean>

<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">

<property name="dataSource" ref="dataSource" />
<property name="typeAliasesPackage" value="com.sword.dataprocess.pojo"></property>
</bean>

<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<property name="basePackage" value="com.sword.dataprocess.mapper"/>
</bean>

</beans>

《 applicationContext-service.xml 》：

<context:component-scan base-package="com.sword.dataprocess.service"/>

<bean id="transactionManager"
class="org.springframework.jdbc.datasource.DataSourceTransactionManager">

<property name="dataSource" ref="dataSource" />
</bean>

<tx:advice id="txAdvice" transaction-manager="transactionManager">
<tx:attributes>

<tx:method name="save*" propagation="REQUIRED" />
<tx:method name="insert*" propagation="REQUIRED" />
<tx:method name="delete*" propagation="REQUIRED" />
<tx:method name="update*" propagation="REQUIRED" />
<tx:method name="find*" propagation="SUPPORTS" read-only="true" />
<tx:method name="get*" propagation="SUPPORTS" read-only="true" />
</tx:attributes>
</tx:advice>

<aop:config>
<aop:advisor advice-ref="txAdvice"
pointcut="execution(* com.sword.dataprocess.service*.*.*(..))" />
</aop:config>

</beans>

数据库的连接信息：

　　《 db.properties 》：

jdbc.dbType=oracle
jdbc.driver=oracle.jdbc.driver.OracleDriver
jdbc.url=jdbc:oracle:thin:@远程的连接ip:orcl
jdbc.username=xxx
jdbc.password=xxx

日志文件：

　　《log4j.properties 》：这里不再贴出

springmvc的xml

　　《springmvc.xml》：

<mvc:resources location="/css/" mapping="/css/**" />
<mvc:resources location="/js/" mapping="/js/**" />
<mvc:resources location="/plugins/" mapping="/plugins/**" />

<bean id="jspViewResolver"
class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/jsp/" />
<property name="suffix" value=".jsp" />
</bean>

<bean id="multipartResolver"
class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
<property name="defaultEncoding" value="UTF-8"/>

<property name="maxUploadSize">
<value>5242880</value>
</property>
</bean>

</beans>

最后最重要的就是web.xml ：

　　《web.xml 》：

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5">
<display-name>DataProcess</display-name>
<welcome-file-list>
<welcome-file>index.html</welcome-file>
<welcome-file>index.htm</welcome-file>
<welcome-file>index.jsp</welcome-file>
<welcome-file>default.html</welcome-file>
<welcome-file>default.htm</welcome-file>
<welcome-file>default.jsp</welcome-file>
</welcome-file-list>

<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:applicationContext-*.xml</param-value>
</context-param>

<servlet>
<servlet-name>springmvc</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>

<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:springmvc.xml</param-value>
</init-param>
</servlet>
<servlet-mapping>
<servlet-name>springmvc</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
</web-app>

前端主要使用的是easyui里面的datagried :大致页面如下：

然后就是把jsp页面的代码贴出来：

　　《index.jsp》：

<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>MRP导入导出</title>

<script type="text/javascript" src="${pageContext.request.contextPath}/js/jquery-1.8.3.js"></script>

<link rel="stylesheet" type="text/css" href="${pageContext.request.contextPath}/js/easyui/themes/default/easyui.css">
<link rel="stylesheet" type="text/css" href="${pageContext.request.contextPath}/js/easyui/themes/icon.css">
<link rel="stylesheet" type="text/css" href="${pageContext.request.contextPath}/js/easyui/ext/portal.css">
<link rel="stylesheet" type="text/css" href="${pageContext.request.contextPath}/css/default.css">
<script type="text/javascript" src="${pageContext.request.contextPath}/js/easyui/jquery.easyui.min.js"></script>
<script type="text/javascript" src="${pageContext.request.contextPath}/js/easyui/ext/jquery.portal.js"></script>
<script type="text/javascript" src="${pageContext.request.contextPath}/js/easyui/ext/jquery.cookie.js"></script>
<script src="${pageContext.request.contextPath}/js/easyui/locale/easyui-lang-zh_CN.js" type="text/javascript"></script>
<script src="${pageContext.request.contextPath}/js/jquery.serializejson.min.js" type="text/javascript"></script>
<script src="${pageContext.request.contextPath}/js/jquery.ocupload-1.1.2.js" type="text/javascript"></script>
<script type="text/javascript">

function doExport() {
location.href="${pageContext.request.contextPath}/export";
}

}

//工具栏
var toolbar = [{
id : 'button-import',
text : '导入',
iconCls : 'icon-redo',
handler : doImport
}, {
id : 'button-export',
text : '导出',
iconCls : 'icon-undo',
handler : doExport
} ];
// 定义列
var columns = [ [ {
field : 'p_id',
title : '料件编号',
width : 120,
align : 'center',
}, {
field : 'p_name',
title : '品名',
width : 120,
align : 'center',
}, {
field : 'p_guige',
title : '规格',
width : 120,
align : 'center',
}, {
field : 'p_xdata',
title : '行动日期',
width : 120,
align : 'center'
}, {
field : 'p_jdate',
title : '交货日期',
width : 100,
align : 'center'
}, {
field : 'p_descCount',
title : '排产数量',
width : 100,
align : 'center'
} ] ];

$(function() {
/* daoru fenqu */
// 先将body隐藏，再显示，不会出现页面刷新效果
$("body").css({
visibility : "visible"
});

// 管理数据表格
$('#grid').datagrid({
iconCls : 'icon-forward',
fit : true,
border : true,
rownumbers : true,
striped : true,
pageList : [ 30, 50, 100 ],
pagination : true,
toolbar : toolbar,
url : "${pageContext.request.contextPath}/show",
idField : 'p_id',
columns : columns,
});

var pager = $('#grid').datagrid('getPager'); // get the pager of datagrid
pager.pagination({
showPageList:false,
});

});

</script>
</head>
<body class="easyui-layout" style="visibility: hidden;">
<div region="center" border="false">
<table id="grid"></table>
</div>
</body>
</html>

接下来就是代码的实现：

　　《controller层》：

import java.io.File;
import java.io.FileInputStream;
import java.util.List;
import java.util.Map;

import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.commons.fileupload.disk.DiskFileItem;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletRequestAttributes;
import org.springframework.web.multipart.MultipartFile;
import org.springframework.web.multipart.MultipartHttpServletRequest;
import org.springframework.web.multipart.commons.CommonsMultipartFile;

import com.sword.dataprocess.pojo.DataProcess;
import com.sword.dataprocess.service.DataService;
import com.sword.dataprocess.utils.FileUtils;

@Controller
public class DataController {

@Autowired
private DataService dataService;

@RequestMapping(value={"/index","/index.html","/index.htm"})
public String index(){
return "index";
}

@RequestMapping("/show")
@ResponseBody
public List<DataProcess> show(Model model){
List<DataProcess> list = dataService.findAll();
model.addAttribute("list", list);
return list;
}

// 文件导出
@RequestMapping("/export")
public void exportXls(HttpServletRequest request,HttpServletResponse response) throws Exception{
// 一个流
// 两个头
// 下载文件的mime类型
response.setContentType("application/vnd.ms-excel"); // 常见的文件可以省略

// 文件的打开方式 inline在线打开 attachment
String agent = request.getHeader("User-Agent");
String filename = FileUtils.encodeDownloadFilename("data.xlsx", agent);
response.setHeader("content-disposition", "attachment;fileName="+filename);
ServletOutputStream outputStream = response.getOutputStream();

// 获取模板在当前项目
ServletRequestAttributes attributes = (ServletRequestAttributes) RequestContextHolder.currentRequestAttributes();
String templatePath = request.getServletContext().getRealPath(File.separator)+"temp"+File.separator+"data.xlsx";
System.out.println(templatePath);
FileInputStream fileInputStream = new FileInputStream(templatePath);

dataService.exportAls(fileInputStream, outputStream);
}

// 文件导入
//接收页面传来的文件
@RequestMapping("/import")
@ResponseBody
public String importXlsx(HttpServletRequest request){
System.out.println(111);
MultipartHttpServletRequest multipartRequest = (MultipartHttpServletRequest) request;
MultipartFile myFile = multipartRequest.getFile("myFile"); // 通过参数名获取指定文件文件本身变量名和文件上传时的名称保持一致
String myFileFileName = myFile.getOriginalFilename();//文件的名字
String myFileContentType = myFile.getContentType(); //文件的mime类型

CommonsMultipartFile cf= (CommonsMultipartFile)myFile;
DiskFileItem fi = (DiskFileItem)cf.getFileItem();

File f = fi.getStoreLocation();
String msg = null;

Boolean flag = dataService.importXls(f,myFileContentType);
if(flag){
msg = "success";
}else{
msg = "error";
}
return msg;
}

}

《service层》：

import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.List;

import javax.servlet.ServletOutputStream;

import org.apache.commons.lang3.StringUtils;
import org.apache.poi.hssf.usermodel.HSSFRow;
import org.apache.poi.hssf.usermodel.HSSFSheet;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.xssf.usermodel.XSSFCell;
import org.apache.poi.xssf.usermodel.XSSFRow;
import org.apache.poi.xssf.usermodel.XSSFSheet;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import com.sword.dataprocess.mapper.DataMapper;
import com.sword.dataprocess.pojo.DataProcess;
import com.sword.dataprocess.service.DataService;

@Service
public class DataServiceImpl implements DataService{
@Autowired
private DataMapper dataMapper;

@Override
public int dataCount() {
return dataMapper.dataCount();
}

@Override
public void exportAls(FileInputStream fileInputStream, ServletOutputStream outputStream) {
// Workbook工作簿
XSSFWorkbook book = null;
try {
book = new XSSFWorkbook(fileInputStream);
} catch (IOException e) {
e.printStackTrace();
}

// 工作表 sheet
XSSFSheet sheet = book.getSheetAt(0);
// 获取第二个sheet中的第一行第一列的样式及边框
// XSSFCellStyle cellStyle = book.getSheetAt(1).getRow(0).getCell(0).getCellStyle();
List<DataProcess> list = dataMapper.findAll();
System.out.println(list.size());
int rowIndex = 1; // 让表格从第二行开始导入
XSSFCell cell = null;
for (DataProcess dataProcess : list) {
// 新建一行
XSSFRow row = sheet.createRow(rowIndex);
cell = row.createCell(0); // 第一个单元格
// 设定已经准备好单元格的样式
// cell.setCellStyle(cellStyle);
String id = dataProcess.getP_id();
if(id != null){
cell.setCellValue(id);
}

cell = row.createCell(1); // 第一个单元格
String name = dataProcess.getP_name();
if(name != null){
cell.setCellValue(name);
}

cell = row.createCell(2); // 第二个单元格
String guige = dataProcess.getP_guige();
if(guige != null){
cell.setCellValue(guige);
}

cell = row.createCell(3); // 第三个单元格
String xdata = dataProcess.getP_xdata();
if(xdata != null){
cell.setCellValue(xdata);
}

cell = row.createCell(4); // 第四个单元格
String jdate = dataProcess.getP_jdate();
if(jdate != null){
cell.setCellValue(jdate);
}

/*cell = row.createCell(5); // 第五个单元格
Integer sourceCount = dataProcess.getP_sourceCount();
if(sourceCount != null){
cell.setCellValue(sourceCount);
}*/

cell = row.createCell(6); // 第六个单元格
Integer descCount = dataProcess.getP_descCount();
if (descCount != null) {
cell.setCellValue(descCount);
}

rowIndex++;
}
// 把工作簿放在输出流中
try {
book.write(outputStream);
} catch (IOException e) {
e.printStackTrace();
}
}

// 导入数据
@Override
public Boolean importXls(File myFile, String myFileContentType) {

if ("application/vnd.ms-excel".equals(myFileContentType)) {
System.out.println(123);
try {
// 获取workbook工作簿
HSSFWorkbook hssfWorkbook = new HSSFWorkbook(new FileInputStream(myFile));
// 获取sheet 工作表
HSSFSheet sheet = hssfWorkbook.getSheetAt(0);
// 获取工作表的最后一行索引
int lastRowNum = sheet.getLastRowNum();
for (int i = 1; i <= lastRowNum; i++) {
DataProcess dataProcess = new DataProcess();
HSSFRow row = sheet.getRow(i);
// 料件编号特征码（8个0）行动日期交货日期排产数量版本号（一次导入只用设置一个相同的值就行）已执行步骤为0

// 料件编号
String p_id = row.getCell(0).getStringCellValue();
dataProcess.setP_id(p_id);
// 行动日期
String p_xdata = row.getCell(3).getStringCellValue();
dataProcess.setP_xdata(p_xdata);;
// 交货日期
String p_jdate = row.getCell(4).getStringCellValue();
dataProcess.setP_jdate(p_jdate);
/*// 需求数量
Integer p_sourceCount = (int) row.getCell(5).getNumericCellValue();
dataProcess.setP_sourceCount(p_sourceCount);*/
// 排产数量
Integer p_descCount = (int) row.getCell(5).getNumericCellValue();
dataProcess.setP_descCount(p_descCount);
// 版本号（一次导入只用设置一个相同的值就行）
SimpleDateFormat tempDate = new SimpleDateFormat("yyyy-MM-dd");
String datetime = tempDate.format(new Date());
String p_version = "MRPVERNO"+datetime;
dataProcess.setP_version(p_version);
// 向tc_aau_file表插入数据
dataMapper.insertdata(dataProcess);
// 向tc_aat_file表插入数据
if(i==lastRowNum){
dataMapper.insertToAAT(p_version);
}
}
} catch (Exception e) {
e.printStackTrace();
return false;
}

} else if ("application/vnd.openxmlformats-officedocument.spreadsheetml.sheet".equals(myFileContentType)) {
try {
// 获取workbook工作簿
XSSFWorkbook xssfWorkbook = new XSSFWorkbook(new FileInputStream(myFile));
// 获取sheet 工作表
XSSFSheet sheet = xssfWorkbook.getSheetAt(0);
// 获取工作表的最后一行索引
int lastRowNum = sheet.getLastRowNum();
for (int i = 1; i <= lastRowNum; i++) {
DataProcess dataProcess = new DataProcess();
XSSFRow row = sheet.getRow(i);
// 料件编号特征码（8个0）行动日期交货日期排产数量版本号（一次导入只用设置一个相同的值就行）已执行步骤为0

/*// 需求数量
Integer p_sourceCount = (int) row.getCell(5).getNumericCellValue();
dataProcess.setP_sourceCount(p_sourceCount);*/
// 排产数量
Integer p_descCount = (int) row.getCell(5).getNumericCellValue();
dataProcess.setP_descCount(p_descCount);
// 版本号（一次导入只用设置一个相同的值就行）
SimpleDateFormat tempDate = new SimpleDateFormat("yyyy-MM-dd");
String datetime = tempDate.format(new Date());
String p_version = "MRPVERNO"+datetime;
dataProcess.setP_version(p_version);

// 向tc_aau_file表插入数据
dataMapper.insertdata(dataProcess);
// 向tc_aat_file表插入数据
if(i==lastRowNum){
dataMapper.insertToAAT(p_version);
}
}
}catch (Exception e) {
e.printStackTrace();
return false;
}
} // elseif 结束
return true;
}

// 查询所有数据
@Override
public List<DataProcess> findAll() {
List<DataProcess> result = dataMapper.findAll();
return result;
}
}

《mapper 层》：

import java.util.List;

import org.apache.ibatis.annotations.Param;

import com.sword.dataprocess.pojo.DataProcess;

public interface DataMapper {
public int dataCount();

public List<DataProcess> findAll();

public void insertdata(@Param("dataProcess")DataProcess dataProcess);

public void insertToAAT(@Param("p_version")String p_version);
}

《对应的xml：》：　

<?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.sword.dataprocess.mapper.DataMapper" >

<select id="dataCount" resultType="int">
select count(1) from tc_aau_file
</select>

<select id="findAll" resultMap="datdProcessMap">
select t.TC_AAU01 ,
i.IMA02 ,
i.ima021 ,
t.TC_AAU06 ,
t.TC_AAU07 ,
t.TC_AAU09
from SWORD.IMA_FILE i, SWORD.TC_AAU_FILE t where i.ima01 = t.tc_aau01
</select>

<insert id="insertdata" parameterType="dataProcess">
INSERT INTO SWORD.TC_AAU_FILE ("TC_AAU01", "TC_AAU03", "TC_AAU06", "TC_AAU07", "TC_AAU09", "TC_AAU13", "TC_AAU14") VALUES (#{dataProcess.p_id}, '00000000', TO_DATE(#{dataProcess.p_xdata}, 'SYYYY-MM-DD HH24:MI:SS'), TO_DATE(#{dataProcess.p_jdate}, 'SYYYY-MM-DD HH24:MI:SS'),#{dataProcess.p_descCount}, #{dataProcess.p_version}, '0')
</insert>

<insert id="insertToAAT" parameterType="string">
INSERT INTO SWORD.TC_AAT_FILE ("TC_AAT01") VALUES (#{p_version})
</insert>

</mapper>

用到了一个工具类（fileutils）：

package com.sword.dataprocess.utils;

import java.io.IOException;
import java.net.URLEncoder;

import sun.misc.BASE64Encoder;

public class FileUtils {
/**
* 下载文件时，针对不同浏览器，进行附件名的编码
*
* @param filename
* 下载文件名
* @param agent
* 客户端浏览器
* @return 编码后的下载附件名
* @throws IOException
*/
public static String encodeDownloadFilename(String filename, String agent)
throws IOException {
if (agent.contains("Firefox")) { // 火狐浏览器
filename = "=?UTF-8?B?"
+ new BASE64Encoder().encode(filename.getBytes("utf-8"))
+ "?=";
filename = filename.replaceAll("\r\n", "");
} else { // IE及其他浏览器
filename = URLEncoder.encode(filename, "utf-8");
filename = filename.replace("+"," ");
}
return filename;
}
}后续会继续补充，未经允许不得转载，欢迎大家多多指正！

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