解决导出CSV文件乱码的问题

这几天处理bug，在解决这个导出csv格式文件乱码的问题，
记录一下；
1，处理前代码

public static void exportList(String[] headers, String[] columns, List dtos, String sheetName,HttpServletResponse response) throws Exception {List header = Arrays.asList(headers);List fids = Arrays.asList(columns);List list = genDtoExportData(dtos, fids);File file = File.createTempFile("export", ".csv");StringBuffer sb = new StringBuffer("");for (String h : headers) {sb.append(transfer(h)).append(",");}sb.append("\r\n");SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");for (Object obj : list) {for (Object obj2 : (List) obj) {if (obj2 instanceof Date) {sb.append(sdf.format((Date) obj2)).append(",");} else {sb.append(transfer(obj2.toString())).append(",");}}sb.append("\r\n");}OutputStream out = null;OutputStreamWriter writer = null;try {out = new FileOutputStream(file);writer = new OutputStreamWriter(out);writer.append(sb.toString());} catch (Exception e) {e.printStackTrace();} finally {if(writer != null){writer.close();}if(out != null){out.close();}}response.setContentType("text/csv; charset=\"utf-8\"");response.setHeader("Content-disposition", "attachment; filename="+transferFilename(sheetName)+".csv");byte[] buffer = new byte[1024];FileInputStream fis = null;BufferedInputStream bis = null;try {fis = new FileInputStream(file);bis = new BufferedInputStream(fis);OutputStream os = response.getOutputStream();int i = bis.read(buffer);while (i != -1) {os.write(buffer, 0, i);i = bis.read(buffer);}} catch (Exception e) {e.printStackTrace();} finally {if (bis != null)bis.close();if (fis != null)fis.close();file.delete();}}/** 处理双引号和逗号的特殊转译 */public static String transfer(String str) {String tempDescription = str;// 如果有逗号if (str.contains(",")) {// 如果还有双引号，先将双引号转义，避免两边加了双引号后转义错误if (str.contains("\"")) {tempDescription = str.replace("\"", "\"\"");}// 在将逗号转义tempDescription = "\"" + tempDescription + "\"";}return tempDescription;}

2，处理后代码

public static void exportList(String[] headers, String[] columns, List dtos, String sheetName, HttpServletResponse response) throws Exception {List header = Arrays.asList(headers);List fids = Arrays.asList(columns);List list = genDtoExportData(dtos, fids);File file = File.createTempFile("export", ".csv");StringBuffer sb = new StringBuffer("");for (String h : headers) {sb.append(transfer(h)).append(",");}sb.append("\r\n");SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");for (Object obj : list) {for (Object obj2 : (List) obj) {if (obj2 instanceof Date) {sb.append(sdf.format((Date) obj2)).append(",");} else {sb.append(transfer(obj2.toString())).append(",");}}sb.append("\r\n");}OutputStream out = null;OutputStreamWriter writer = null;try {out = new FileOutputStream(file);writer = new OutputStreamWriter(out, "UTF-8");writer.write(new String(new byte[] { (byte) 0xEF, (byte) 0xBB,(byte) 0xBF }));  writer.append(sb.toString());} catch (Exception e) {e.printStackTrace();} finally {if(writer != null){writer.close();}if(out != null){out.close();}}response.setContentType("text/csv; charset=\"utf-8\"");response.setHeader("Content-disposition", "attachment; filename="+transferFilename(sheetName)+".csv");byte[] buffer = new byte[1024];FileInputStream fis = null;BufferedInputStream bis = null;try {fis = new FileInputStream(file);bis = new BufferedInputStream(fis);OutputStream os = response.getOutputStream();int i = bis.read(buffer);while (i != -1) {os.write(buffer, 0, i);i = bis.read(buffer);}} catch (Exception e) {e.printStackTrace();} finally {if (bis != null)bis.close();if (fis != null)fis.close();file.delete();}}/** 处理双引号和逗号的特殊转译 */public static String transfer(String str) {String tempDescription = str;// 如果有逗号if (str.contains(",")) {// 如果还有双引号，先将双引号转义，避免两边加了双引号后转义错误if (str.contains("\"")) {tempDescription = str.replace("\"", "\"\"");}// 在将逗号转义tempDescription = "\"" + tempDescription + "\"";}return tempDescription;}

看不出来改的哪里，没关系，下面这个是对比图

解决导出CSV文件乱码的问题相关推荐

php导出csv文件乱码问题解决方法
php导出csv文件乱码问题解决方法说这个问题之前首先来说一下什么是CSV文件?Comma Separator Value(逗号分隔值)是也.常常用来数据转换的中间文件存在,比如:从Mysql中导 ...
java导出csv文件乱码_记一次java生成csv文件乱码的解决过程 (GB2312编码)
系统:win7 (格式:中文(简体,中国)) 工具:Eclipse (默认编码utf-8) 服务两个:[restful接口] 和 [服务*** server]. 场景:[服务*** server]多 ...
【Python 必会技巧】利用 utf-8-sig 编码格式解决写入 csv 文件乱码问题
先举个例子,分别以不指定编码.指定编码为 utf-8.指定编码为 utf-8-sig 三种方式来做比较,再将写入 csv 文件和 txt 文件来做个对比一.不指定编码方式,直接存入 csv 文件 i ...
Mysql 导入导出csv 中文乱码问题的解决方法
导出csv: select t1.stid,t1.cateNodeId,t2.name,t1.name from (select p.stid,p.cateNodeId,r.name from Res ...
mysqlcsv导入中文乱码_Mysql 导入导出csv 中文乱码问题的解决方法
导入csv: 复制代码代码如下: load data infile '/test.csv' into table table_name fields terminated by ',' optio ...
csv导入mysql乱码问题,Mysql导入导出csv中文乱码问题的解决方法_MySQL
bitsCN.com 导入csv: load data infile '/test.csv' into table table_name fields terminated by ',' option ...
netbox 导出 csv 中文乱码、时区修改
NetBox是IP地址管理(IPAM)和数据中心基础结构管理(DCIM)工具. NetBox最初是由的网络工程团队构想的,它是专门为满足网络和基础架构工程师的需求而开发的. 项目地址:https:// ...
mysql导出csv乱码_Mysql 导入导出csv 中文乱码
导入csv: 复制代码代码如下: load data infile '/test.csv' into table table_name fields terminated by ',' optio ...
PHP导出CSV文件出现乱码的解决方法
PHP导出CSV文件出现乱码的解决方法参考文章: (1)PHP导出CSV文件出现乱码的解决方法 (2)https://www.cnblogs.com/xingxia/p/php_csv.html 备 ...

解决导出CSV文件乱码的问题

解决导出CSV文件乱码的问题相关推荐

最新文章

热门文章