Atitit json array to csv 目录 1. Lib 1 1.1. Apache csv lib 1 1.2. Org.json.jar cdl模式 1 2. other 1 2

Atitit json array to csv

目录

1. Lib 1

1.1. Apache csv lib 1

1.2. Org.json.jar   cdl模式 1

2. other 1

2.1. Ret fmt 1

2.2. code 2

2.3. Other net code 3

3. Ref 4

1. Lib

1.1. Apache csv lib

1.2. Org.json.jar   cdl模式

CSV	Component for reading and writing comma separated value files

2. other

2.1. Ret fmt

VCF08,VCF09,ACF01,VCF54,VCF57,VCF10,VCF11,VCF32,VAP01,VCF70,VCF18,VCF01,BCE03A,BCE01A,VCF68,VCF67,VAA07,VCF66,VCF65,VCF69,VCF86,VAA01,VCF23,VCF22,VCF27

1,1526378400000,2,0,0,1526367850870,01,0,0,,1,54501,系统管理员,244,,,55975,22,11,,0,82767,0,1,0

1,1526356800000,2,0,0,1526367777260,01,0,0,,1,54500,系统管理员,244,,,55975,22,11,,0,82767,0,1,0

0,-2209017600000,2,0,0,1526355967273,,0,0,,0,54499,,0,,,0,,,,0,0,0,1,0

1,1526364000000,2,0,0,1526355958717,01,0,0,11111,1,54498,系统管理员,244,1111,1111,55975,111,11,11111,0,82767,0,1,0

1,1526356800000,2,0,0,1526355833170,01,0,0,,1,54497,系统管理员,244,33,33,55975,22,11,,0,82767,0,1,0

1,1526356800000,2,0,0,1526355726100,00,0,0,,1,54495,系统管理员,244,,,55975,,,,0,82767,0,1,0

1,1526356800000,2,,,1526355726100,00,,0,,1,54496,系统管理员,244,,,55975,,,,0,82767,1,1,

 

2.2. code

 

package hislog;

import java.sql.Connection;

import java.sql.SQLException;

import java.util.List;

import java.util.Map;

import org.apache.commons.dbutils.QueryRunner;

import org.apache.commons.dbutils.handlers.MapListHandler;

import org.json.CDL;

import org.json.JSONException;

import com.alibaba.fastjson.JSON;

import com.attilax.util.ExUtil;

import com.attilax.util.jsonuti4fc;

public class weijonrecsaveReztloolk {

public static void main(String[] args) {

// TODO Auto-generated method stub

}

/**

 *

 * @return 返回csv格式的字符串

 * @throws JSONException

 */

public String getCSVString(String jsonString) {

// 将jsonArray转换成纯字符串（涵盖所有符号）

// 利用字符串生成org.json.JSONArray,实现net.sf.json.jsonArray与org.json.JSONArray转换

org.json.JSONArray orgjsonarray;

try {

orgjsonarray = new org.json.JSONArray(jsonString);

// 利用org.json工具类生成CSV格式要求的String。

String csv = CDL.toString(orgjsonarray);

return csv;

} catch (JSONException e) {

// TODO Auto-generated catch block

e.printStackTrace();

ExUtil.throwExV2(e);

}

return jsonString;

}

 

2.3. Other net code

* * @类名称：CSVUtils * @类描述：csv文件读写 * @创建时间：2017年1月10日 上午11:05:12 * @version 1.0.0 */ public class CSVUtils { private static final Logger log = Logger.getLogger(CSVUtils.class); // 写csv文件 传参数文件名 路径 csv文件表头 需要写入的数据 public static File writeCsvFile(String fileName, String path, String[] fileHeaders, List<List<String>> list) { File csvFile = null; BufferedWriter csvFileOutputStream = null; CSVPrinter csvPrinter = null; CSVFormat csvFileFormat = CSVFormat.DEFAULT.withHeader(fileHeaders); try { File file = new File(path); if (!file.exists()) { file.mkdir(); } csvFile = new File(path+fileName+".csv"); csvFileOutputStream = new BufferedWriter(new OutputStreamWriter(new FileOutputStream(csvFile), "UTF-8"), 1024); // 初始化 CSVPrinter csvPrinter = new CSVPrinter(csvFileOutputStream, csvFileFormat); List<String> ls = null; if (list != null) { for (int i = 0; i < list.size(); i++) { ls = new ArrayList<String>(); ls=list.get(i); for (int j = 0; j < ls.size(); j++) { csvPrinter.print(ls.get(j)); } csvPrinter.println();// 换行 } } } catch (Exception e) { e.printStackTrace(); log.error("csv文件写入异常"); } finally { try { csvFileOutputStream.flush(); csvFileOutputStream.close(); csvPrinter.close(); } catch (IOException e) { e.printStackTrace(); } } return csvFile; } //测试写入功能 public static void main(String[] args) { /* String[] fileHeaders={"1","2","3"}; */ String[] fileHeaders = null; List<List<String>> list = new ArrayList<List<String>>(); List<String> ls = new ArrayList<String>(); ls.add("a"); ls.add("b"); ls.add("c"); List<String> ls1 = new ArrayList<String>(); ls1.add("北京"); ls1.add("上海"); ls1.add("成都"); list.add(ls); list.add(ls1); File file = writeCsvFile("abc", "E:/test",fileHeaders,list); } // 读取csv文件 传参数 文件 表头 从第几行开始 public static List readCsvFile(File file, String[] fileHeaders, Integer num) { BufferedReader br = null; CSVParser csvFileParser = null; List list = null; // 创建CSVFormat（header mapping） CSVFormat csvFileFormat = CSVFormat.DEFAULT.withHeader(fileHeaders); try { // 初始化FileReader object br = new BufferedReader(new InputStreamReader(new FileInputStream(file), "gbk"));//解决乱码问题 // 初始化 CSVParser object csvFileParser = new CSVParser(br, csvFileFormat); // CSV文件records List<CSVRecord> csvRecords = csvFileParser.getRecords(); List data = new ArrayList(); list = new ArrayList(); for (int i = num; i < csvRecords.size(); i++) { CSVRecord record = csvRecords.get(i); for (int j = 0; j < fileHeaders.length; j++) { data.add(record.get(fileHeaders[j])); } list.add(data); } } catch (Exception e) { e.printStackTrace(); log.error("csv文件读取异常"); } finally { try { br.close(); csvFileParser.close(); } catch (IOException e) { e.printStackTrace(); } } return list; } }

 

3. Ref

Apache-Commons CSV文件的读和写 - CSDN博客.html

apache commons csv写文件demo-布布扣-bubuko.com.html

JsonArry转换为CSV,Excel可读 - CSDN博客.html

Apache common Csv读写文件 - CSDN博客.html  ()jeig implt d bijyao hao